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MySQL Discussion Thread
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Views: 2946

Apr 20th, 2006

Cannot connect to server

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** CAN A MYSQLD EXPERT PLEASE HELP ME OUT ON THIS ONE **
I am having a problem with my MySQLd on db2.daniweb.com going through periods of 1-2 minutes every couple of hours where it refuses connections from Apache on web.daniweb.com. The error being thrown back is:
mysql_pconnect(): Can't connect to MySQL server on '10.0.0.2'
As you can see, I'm using persistent connections since I understand that they are more efficient when the web and database servers are not on the same machine, to eliminate the constant handshake overhead.
The Aborted_clients variable seems to constantly and continuously increment throughout the day. I am wondering if this is a hacking attempt where someone is constantly trying to connect to the MySQL server with an incorrect username and password. The aborted_connects variable is synonymous with when I encounter downtime, and it represents the number of visitors to my php-driven website who are unable to connect to the MySQL server.
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************* IMMEDIATELY AFTER *****************************************************
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MySQL Syntax (Toggle Plain Text)
mysql> SHOW status;
+--------------------------------+--------------+
| Variable_name                  | Value        |
+--------------------------------+--------------+
| Aborted_clients                | 97298        |
| Aborted_connects               | 1012         |
| Binlog_cache_disk_use          | 0            |
| Binlog_cache_use               | 0            |
| Bytes_received                 | 6708267634   |
| Bytes_sent                     | 419093372467 |
| Com_admin_commands             | 1197973      |
| Com_alter_db                   | 0            |
| Com_alter_table                | 139          |
| Com_analyze                    | 0            |
| Com_backup_table               | 0            |
| Com_begin                      | 0            |
| Com_change_db                  | 1246714      |
| Com_change_master              | 0            |
| Com_check                      | 0            |
| Com_checksum                   | 0            |
| Com_commit                     | 0            |
| Com_create_db                  | 0            |
| Com_create_function            | 0            |
| Com_create_index               | 0            |
| Com_create_table               | 11           |
| Com_dealloc_sql                | 0            |
| Com_delete                     | 7135         |
| Com_delete_multi               | 0            |
| Com_do                         | 0            |
| Com_drop_db                    | 0            |
| Com_drop_function              | 0            |
| Com_drop_index                 | 0            |
| Com_drop_table                 | 0            |
| Com_drop_user                  | 0            |
| Com_execute_sql                | 0            |
| Com_flush                      | 0            |
| Com_grant                      | 0            |
| Com_ha_close                   | 0            |
| Com_ha_open                    | 0            |
| Com_ha_read                    | 0            |
| Com_help                       | 0            |
| Com_insert                     | 812477       |
| Com_insert_select              | 0            |
| Com_kill                       | 0            |
| Com_load                       | 0            |
| Com_load_master_data           | 0            |
| Com_load_master_table          | 0            |
| Com_lock_tables                | 5            |
| Com_optimize                   | 2            |
| Com_preload_keys               | 0            |
| Com_prepare_sql                | 0            |
| Com_purge                      | 0            |
| Com_purge_before_date          | 0            |
| Com_rename_table               | 0            |
| Com_repair                     | 0            |
| Com_replace                    | 30148        |
| Com_replace_select             | 0            |
| Com_reset                      | 0            |
| Com_restore_table              | 0            |
| Com_revoke                     | 0            |
| Com_revoke_all                 | 0            |
| Com_rollback                   | 0            |
| Com_savepoint                  | 0            |
| Com_select                     | 7973670      |
| Com_set_option                 | 654          |
| Com_show_binlog_events         | 0            |
| Com_show_binlogs               | 4            |
| Com_show_charsets              | 45           |
| Com_show_collations            | 45           |
| Com_show_column_types          | 0            |
| Com_show_create_db             | 14           |
| Com_show_create_table          | 471          |
| Com_show_databases             | 43           |
| Com_show_errors                | 0            |
| Com_show_fields                | 2753         |
| Com_show_grants                | 4            |
| Com_show_innodb_status         | 0            |
| Com_show_keys                  | 14           |
| Com_show_logs                  | 0            |
| Com_show_master_status         | 0            |
| Com_show_new_master            | 0            |
| Com_show_open_tables           | 0            |
| Com_show_privileges            | 0            |
| Com_show_processlist           | 0            |
| Com_show_slave_hosts           | 0            |
| Com_show_slave_status          | 0            |
| Com_show_status                | 81           |
| Com_show_storage_engines       | 0            |
| Com_show_tables                | 706          |
| Com_show_variables             | 200          |
| Com_show_warnings              | 0            |
| Com_slave_start                | 0            |
| Com_slave_stop                 | 0            |
| Com_truncate                   | 0            |
| Com_unlock_tables              | 5            |
| Com_update                     | 1463128      |
| Com_update_multi               | 0            |
| Connections                    | 50109        |
| Created_tmp_disk_tables        | 53088        |
| Created_tmp_files              | 27291        |
| Created_tmp_tables             | 1042080      |
| Delayed_errors                 | 0            |
| Delayed_insert_threads         | 0            |
| Delayed_writes                 | 0            |
| Flush_commands                 | 1            |
| Handler_commit                 | 0            |
| Handler_delete                 | 340986       |
| Handler_discover               | 0            |
| Handler_read_first             | 57528        |
| Handler_read_key               | 1011268015   |
| Handler_read_next              | 768309745    |
| Handler_read_prev              | 3344817      |
| Handler_read_rnd               | 118774822    |
| Handler_read_rnd_next          | 13472399493  |
| Handler_rollback               | 0            |
| Handler_update                 | 6592194      |
| Handler_write                  | 140132175    |
| Key_blocks_not_flushed         | 0            |
| Key_blocks_unused              | 295691       |
| Key_blocks_used                | 60691        |
| Key_read_requests              | 2983753679   |
| Key_reads                      | 222810       |
| Key_write_requests             | 9615985      |
| Key_writes                     | 791595       |
| Max_used_connections           | 370          |
| Not_flushed_delayed_rows       | 0            |
| Open_files                     | 359          |
| Open_streams                   | 0            |
| Open_tables                    | 245          |
| Opened_tables                  | 730          |
| Qcache_free_blocks             | 15581        |
| Qcache_free_memory             | 70587944     |
| Qcache_hits                    | 16922980     |
| Qcache_inserts                 | 7946708      |
| Qcache_lowmem_prunes           | 577728       |
| Qcache_not_cached              | 26961        |
| Qcache_queries_in_cache        | 26829        |
| Qcache_total_blocks            | 69676        |
| Questions                      | 28461517     |
| Rpl_status                     | NULL         |
| Select_full_join               | 40186        |
| Select_full_range_join         | 0            |
| Select_range                   | 1115910      |
| Select_range_check             | 0            |
| Select_scan                    | 3983344      |
| Slave_open_temp_tables         | 0            |
| Slave_running                  | OFF          |
| Slave_retried_transactions     | 0            |
| Slow_launch_threads            | 0            |
| Slow_queries                   | 0            |
| Sort_merge_passes              | 13664        |
| Sort_range                     | 1525388      |
| Sort_rows                      | 949543538    |
| Sort_scan                      | 914705       |
| Ssl_accept_renegotiates        | 0            |
| Ssl_accepts                    | 0            |
| Ssl_callback_cache_hits        | 0            |
| Ssl_cipher                     |              |
| Ssl_cipher_list                |              |
| Ssl_client_connects            | 0            |
| Ssl_connect_renegotiates       | 0            |
| Ssl_ctx_verify_depth           | 0            |
| Ssl_ctx_verify_mode            | 0            |
| Ssl_default_timeout            | 0            |
| Ssl_finished_accepts           | 0            |
| Ssl_finished_connects          | 0            |
| Ssl_session_cache_hits         | 0            |
| Ssl_session_cache_misses       | 0            |
| Ssl_session_cache_mode         | NONE         |
| Ssl_session_cache_overflows    | 0            |
| Ssl_session_cache_size         | 0            |
| Ssl_session_cache_timeouts     | 0            |
| Ssl_sessions_reused            | 0            |
| Ssl_used_session_cache_entries | 0            |
| Ssl_verify_depth               | 0            |
| Ssl_verify_mode                | 0            |
| Ssl_version                    |              |
| Table_locks_immediate          | 20635946     |
| Table_locks_waited             | 18928        |
| Threads_cached                 | 0            |
| Threads_connected              | 370          |
| Threads_created                | 808          |
| Threads_running                | 1            |
| Uptime                         | 288921       |
+--------------------------------+--------------+
180 rows IN SET (0.01 sec)
mysql>
mysql> status;
--------------
mysql  Ver 14.7 Distrib 4.1.12, for redhat-linux-gnu (x86_64) USING readline 4.3
Connection id:          49902
Current database:       techtalkforums
Current user:           cscgal@localhost
SSL:                    NOT IN USE
Current pager:          stdout
USING OUTFILE:          ''
USING delimiter:        ;
Server version:         4.1.12
Protocol version:       10
Connection:             Localhost via UNIX socket
Server characterset:    latin1
Db     characterset:    latin1
Client characterset:    latin1
Conn.  characterset:    latin1
UNIX socket:            /var/lib/mysql/mysql.sock
Uptime:                 3 days 8 hours 12 min 47 sec
Threads: 186  Questions: 28457911  Slow queries: 0  Opens: 730  Flush tables: 1                                                                                                                                                               Open tables: 245  Queries per SECOND avg: 98.550
--------------
mysql> show status;
+--------------------------------+--------------+
| Variable_name                  | Value        |
+--------------------------------+--------------+
| Aborted_clients                | 97298        |
| Aborted_connects               | 1012         |
| Binlog_cache_disk_use          | 0            |
| Binlog_cache_use               | 0            |
| Bytes_received                 | 6708267634   |
| Bytes_sent                     | 419093372467 |
| Com_admin_commands             | 1197973      |
| Com_alter_db                   | 0            |
| Com_alter_table                | 139          |
| Com_analyze                    | 0            |
| Com_backup_table               | 0            |
| Com_begin                      | 0            |
| Com_change_db                  | 1246714      |
| Com_change_master              | 0            |
| Com_check                      | 0            |
| Com_checksum                   | 0            |
| Com_commit                     | 0            |
| Com_create_db                  | 0            |
| Com_create_function            | 0            |
| Com_create_index               | 0            |
| Com_create_table               | 11           |
| Com_dealloc_sql                | 0            |
| Com_delete                     | 7135         |
| Com_delete_multi               | 0            |
| Com_do                         | 0            |
| Com_drop_db                    | 0            |
| Com_drop_function              | 0            |
| Com_drop_index                 | 0            |
| Com_drop_table                 | 0            |
| Com_drop_user                  | 0            |
| Com_execute_sql                | 0            |
| Com_flush                      | 0            |
| Com_grant                      | 0            |
| Com_ha_close                   | 0            |
| Com_ha_open                    | 0            |
| Com_ha_read                    | 0            |
| Com_help                       | 0            |
| Com_insert                     | 812477       |
| Com_insert_select              | 0            |
| Com_kill                       | 0            |
| Com_load                       | 0            |
| Com_load_master_data           | 0            |
| Com_load_master_table          | 0            |
| Com_lock_tables                | 5            |
| Com_optimize                   | 2            |
| Com_preload_keys               | 0            |
| Com_prepare_sql                | 0            |
| Com_purge                      | 0            |
| Com_purge_before_date          | 0            |
| Com_rename_table               | 0            |
| Com_repair                     | 0            |
| Com_replace                    | 30148        |
| Com_replace_select             | 0            |
| Com_reset                      | 0            |
| Com_restore_table              | 0            |
| Com_revoke                     | 0            |
| Com_revoke_all                 | 0            |
| Com_rollback                   | 0            |
| Com_savepoint                  | 0            |
| Com_select                     | 7973670      |
| Com_set_option                 | 654          |
| Com_show_binlog_events         | 0            |
| Com_show_binlogs               | 4            |
| Com_show_charsets              | 45           |
| Com_show_collations            | 45           |
| Com_show_column_types          | 0            |
| Com_show_create_db             | 14           |
| Com_show_create_table          | 471          |
| Com_show_databases             | 43           |
| Com_show_errors                | 0            |
| Com_show_fields                | 2753         |
| Com_show_grants                | 4            |
| Com_show_innodb_status         | 0            |
| Com_show_keys                  | 14           |
| Com_show_logs                  | 0            |
| Com_show_master_status         | 0            |
| Com_show_new_master            | 0            |
| Com_show_open_tables           | 0            |
| Com_show_privileges            | 0            |
| Com_show_processlist           | 0            |
| Com_show_slave_hosts           | 0            |
| Com_show_slave_status          | 0            |
| Com_show_status                | 81           |
| Com_show_storage_engines       | 0            |
| Com_show_tables                | 706          |
| Com_show_variables             | 200          |
| Com_show_warnings              | 0            |
| Com_slave_start                | 0            |
| Com_slave_stop                 | 0            |
| Com_truncate                   | 0            |
| Com_unlock_tables              | 5            |
| Com_update                     | 1463128      |
| Com_update_multi               | 0            |
| Connections                    | 50109        |
| Created_tmp_disk_tables        | 53088        |
| Created_tmp_files              | 27291        |
| Created_tmp_tables             | 1042080      |
| Delayed_errors                 | 0            |
| Delayed_insert_threads         | 0            |
| Delayed_writes                 | 0            |
| Flush_commands                 | 1            |
| Handler_commit                 | 0            |
| Handler_delete                 | 340986       |
| Handler_discover               | 0            |
| Handler_read_first             | 57528        |
| Handler_read_key               | 1011268015   |
| Handler_read_next              | 768309745    |
| Handler_read_prev              | 3344817      |
| Handler_read_rnd               | 118774822    |
| Handler_read_rnd_next          | 13472399493  |
| Handler_rollback               | 0            |
| Handler_update                 | 6592194      |
| Handler_write                  | 140132175    |
| Key_blocks_not_flushed         | 0            |
| Key_blocks_unused              | 295691       |
| Key_blocks_used                | 60691        |
| Key_read_requests              | 2983753679   |
| Key_reads                      | 222810       |
| Key_write_requests             | 9615985      |
| Key_writes                     | 791595       |
| Max_used_connections           | 370          |
| Not_flushed_delayed_rows       | 0            |
| Open_files                     | 359          |
| Open_streams                   | 0            |
| Open_tables                    | 245          |
| Opened_tables                  | 730          |
| Qcache_free_blocks             | 15581        |
| Qcache_free_memory             | 70587944     |
| Qcache_hits                    | 16922980     |
| Qcache_inserts                 | 7946708      |
| Qcache_lowmem_prunes           | 577728       |
| Qcache_not_cached              | 26961        |
| Qcache_queries_in_cache        | 26829        |
| Qcache_total_blocks            | 69676        |
| Questions                      | 28461517     |
| Rpl_status                     | NULL         |
| Select_full_join               | 40186        |
| Select_full_range_join         | 0            |
| Select_range                   | 1115910      |
| Select_range_check             | 0            |
| Select_scan                    | 3983344      |
| Slave_open_temp_tables         | 0            |
| Slave_running                  | OFF          |
| Slave_retried_transactions     | 0            |
| Slow_launch_threads            | 0            |
| Slow_queries                   | 0            |
| Sort_merge_passes              | 13664        |
| Sort_range                     | 1525388      |
| Sort_rows                      | 949543538    |
| Sort_scan                      | 914705       |
| Ssl_accept_renegotiates        | 0            |
| Ssl_accepts                    | 0            |
| Ssl_callback_cache_hits        | 0            |
| Ssl_cipher                     |              |
| Ssl_cipher_list                |              |
| Ssl_client_connects            | 0            |
| Ssl_connect_renegotiates       | 0            |
| Ssl_ctx_verify_depth           | 0            |
| Ssl_ctx_verify_mode            | 0            |
| Ssl_default_timeout            | 0            |
| Ssl_finished_accepts           | 0            |
| Ssl_finished_connects          | 0            |
| Ssl_session_cache_hits         | 0            |
| Ssl_session_cache_misses       | 0            |
| Ssl_session_cache_mode         | NONE         |
| Ssl_session_cache_overflows    | 0            |
| Ssl_session_cache_size         | 0            |
| Ssl_session_cache_timeouts     | 0            |
| Ssl_sessions_reused            | 0            |
| Ssl_used_session_cache_entries | 0            |
| Ssl_verify_depth               | 0            |
| Ssl_verify_mode                | 0            |
| Ssl_version                    |              |
| Table_locks_immediate          | 20635946     |
| Table_locks_waited             | 18928        |
| Threads_cached                 | 0            |
| Threads_connected              | 370          |
| Threads_created                | 808          |
| Threads_running                | 1            |
| Uptime                         | 288921       |
+--------------------------------+--------------+
180 rows in set (0.01 sec)
mysql>
mysql> status;
--------------
mysql  Ver 14.7 Distrib 4.1.12, for redhat-linux-gnu (x86_64) using readline 4.3
Connection id:          49902
Current database:       techtalkforums
Current user:           cscgal@localhost
SSL:                    Not in use
Current pager:          stdout
Using outfile:          ''
Using delimiter:        ;
Server version:         4.1.12
Protocol version:       10
Connection:             Localhost via UNIX socket
Server characterset:    latin1
Db     characterset:    latin1
Client characterset:    latin1
Conn.  characterset:    latin1
UNIX socket:            /var/lib/mysql/mysql.sock
Uptime:                 3 days 8 hours 12 min 47 sec
Threads: 186  Questions: 28457911  Slow queries: 0  Opens: 730  Flush tables: 1                                                                                                                                                               Open tables: 245  Queries per second avg: 98.550
--------------

MySQL Syntax (Toggle Plain Text)
mysql> SHOW status;
+--------------------------------+--------------+
| Variable_name                  | Value        |
+--------------------------------+--------------+
| Aborted_clients                | 97546        |
| Aborted_connects               | 1291         |
| Binlog_cache_disk_use          | 0            |
| Binlog_cache_use               | 0            |
| Bytes_received                 | 6717719864   |
| Bytes_sent                     | 419755259602 |
| Com_admin_commands             | 1199607      |
| Com_alter_db                   | 0            |
| Com_alter_table                | 139          |
| Com_analyze                    | 0            |
| Com_backup_table               | 0            |
| Com_begin                      | 0            |
| Com_change_db                  | 1248498      |
| Com_change_master              | 0            |
| Com_check                      | 0            |
| Com_checksum                   | 0            |
| Com_commit                     | 0            |
| Com_create_db                  | 0            |
| Com_create_function            | 0            |
| Com_create_index               | 0            |
| Com_create_table               | 11           |
| Com_dealloc_sql                | 0            |
| Com_delete                     | 7152         |
| Com_delete_multi               | 0            |
| Com_do                         | 0            |
| Com_drop_db                    | 0            |
| Com_drop_function              | 0            |
| Com_drop_index                 | 0            |
| Com_drop_table                 | 0            |
| Com_drop_user                  | 0            |
| Com_execute_sql                | 0            |
| Com_flush                      | 0            |
| Com_grant                      | 0            |
| Com_ha_close                   | 0            |
| Com_ha_open                    | 0            |
| Com_ha_read                    | 0            |
| Com_help                       | 0            |
| Com_insert                     | 813569       |
| Com_insert_select              | 0            |
| Com_kill                       | 0            |
| Com_load                       | 0            |
| Com_load_master_data           | 0            |
| Com_load_master_table          | 0            |
| Com_lock_tables                | 5            |
| Com_optimize                   | 2            |
| Com_preload_keys               | 0            |
| Com_prepare_sql                | 0            |
| Com_purge                      | 0            |
| Com_purge_before_date          | 0            |
| Com_rename_table               | 0            |
| Com_repair                     | 0            |
| Com_replace                    | 30280        |
| Com_replace_select             | 0            |
| Com_reset                      | 0            |
| Com_restore_table              | 0            |
| Com_revoke                     | 0            |
| Com_revoke_all                 | 0            |
| Com_rollback                   | 0            |
| Com_savepoint                  | 0            |
| Com_select                     | 7985055      |
| Com_set_option                 | 654          |
| Com_show_binlog_events         | 0            |
| Com_show_binlogs               | 4            |
| Com_show_charsets              | 45           |
| Com_show_collations            | 45           |
| Com_show_column_types          | 0            |
| Com_show_create_db             | 14           |
| Com_show_create_table          | 471          |
| Com_show_databases             | 43           |
| Com_show_errors                | 0            |
| Com_show_fields                | 2753         |
| Com_show_grants                | 4            |
| Com_show_innodb_status         | 0            |
| Com_show_keys                  | 14           |
| Com_show_logs                  | 0            |
| Com_show_master_status         | 0            |
| Com_show_new_master            | 0            |
| Com_show_open_tables           | 0            |
| Com_show_privileges            | 0            |
| Com_show_processlist           | 0            |
| Com_show_slave_hosts           | 0            |
| Com_show_slave_status          | 0            |
| Com_show_status                | 82           |
| Com_show_storage_engines       | 0            |
| Com_show_tables                | 706          |
| Com_show_variables             | 200          |
| Com_show_warnings              | 0            |
| Com_slave_start                | 0            |
| Com_slave_stop                 | 0            |
| Com_truncate                   | 0            |
| Com_unlock_tables              | 5            |
| Com_update                     | 1464674      |
| Com_update_multi               | 0            |
| Connections                    | 50180        |
| Created_tmp_disk_tables        | 53135        |
| Created_tmp_files              | 27331        |
| Created_tmp_tables             | 1044002      |
| Delayed_errors                 | 0            |
| Delayed_insert_threads         | 0            |
| Delayed_writes                 | 0            |
| Flush_commands                 | 1            |
| Handler_commit                 | 0            |
| Handler_delete                 | 340995       |
| Handler_discover               | 0            |
| Handler_read_first             | 57594        |
| Handler_read_key               | 1012293691   |
| Handler_read_next              | 769499630    |
| Handler_read_prev              | 3356547      |
| Handler_read_rnd               | 119435929    |
| Handler_read_rnd_next          | 13488540869  |
| Handler_rollback               | 0            |
| Handler_update                 | 6601935      |
| Handler_write                  | 140832549    |
| Key_blocks_not_flushed         | 0            |
| Key_blocks_unused              | 295503       |
| Key_blocks_used                | 60691        |
| Key_read_requests              | 2986988388   |
| Key_reads                      | 223070       |
| Key_write_requests             | 9622453      |
| Key_writes                     | 793284       |
| Max_used_connections           | 371          |
| Not_flushed_delayed_rows       | 0            |
| Open_files                     | 359          |
| Open_streams                   | 0            |
| Open_tables                    | 253          |
| Opened_tables                  | 738          |
| Qcache_free_blocks             | 16002        |
| Qcache_free_memory             | 68684336     |
| Qcache_hits                    | 16945536     |
| Qcache_inserts                 | 7957975      |
| Qcache_lowmem_prunes           | 577728       |
| Qcache_not_cached              | 27079        |
| Qcache_queries_in_cache        | 27133        |
| Qcache_total_blocks            | 70794        |
| Questions                      | 28500030     |
| Rpl_status                     | NULL         |
| Select_full_join               | 40212        |
| Select_full_range_join         | 0            |
| Select_range                   | 1117553      |
| Select_range_check             | 0            |
| Select_scan                    | 3988735      |
| Slave_open_temp_tables         | 0            |
| Slave_running                  | OFF          |
| Slave_retried_transactions     | 0            |
| Slow_launch_threads            | 0            |
| Slow_queries                   | 0            |
| Sort_merge_passes              | 13684        |
| Sort_range                     | 1527449      |
| Sort_rows                      | 950393386    |
| Sort_scan                      | 915799       |
| Ssl_accept_renegotiates        | 0            |
| Ssl_accepts                    | 0            |
| Ssl_callback_cache_hits        | 0            |
| Ssl_cipher                     |              |
| Ssl_cipher_list                |              |
| Ssl_client_connects            | 0            |
| Ssl_connect_renegotiates       | 0            |
| Ssl_ctx_verify_depth           | 0            |
| Ssl_ctx_verify_mode            | 0            |
| Ssl_default_timeout            | 0            |
| Ssl_finished_accepts           | 0            |
| Ssl_finished_connects          | 0            |
| Ssl_session_cache_hits         | 0            |
| Ssl_session_cache_misses       | 0            |
| Ssl_session_cache_mode         | NONE         |
| Ssl_session_cache_overflows    | 0            |
| Ssl_session_cache_size         | 0            |
| Ssl_session_cache_timeouts     | 0            |
| Ssl_sessions_reused            | 0            |
| Ssl_used_session_cache_entries | 0            |
| Ssl_verify_depth               | 0            |
| Ssl_verify_mode                | 0            |
| Ssl_version                    |              |
| Table_locks_immediate          | 20662417     |
| Table_locks_waited             | 18955        |
| Threads_cached                 | 94           |
| Threads_connected              | 38           |
| Threads_created                | 809          |
| Threads_running                | 1            |
| Uptime                         | 289238       |
+--------------------------------+--------------+
180 rows IN SET (0.00 sec)
mysql>
mysql> show status;
+--------------------------------+--------------+
| Variable_name                  | Value        |
+--------------------------------+--------------+
| Aborted_clients                | 97546        |
| Aborted_connects               | 1291         |
| Binlog_cache_disk_use          | 0            |
| Binlog_cache_use               | 0            |
| Bytes_received                 | 6717719864   |
| Bytes_sent                     | 419755259602 |
| Com_admin_commands             | 1199607      |
| Com_alter_db                   | 0            |
| Com_alter_table                | 139          |
| Com_analyze                    | 0            |
| Com_backup_table               | 0            |
| Com_begin                      | 0            |
| Com_change_db                  | 1248498      |
| Com_change_master              | 0            |
| Com_check                      | 0            |
| Com_checksum                   | 0            |
| Com_commit                     | 0            |
| Com_create_db                  | 0            |
| Com_create_function            | 0            |
| Com_create_index               | 0            |
| Com_create_table               | 11           |
| Com_dealloc_sql                | 0            |
| Com_delete                     | 7152         |
| Com_delete_multi               | 0            |
| Com_do                         | 0            |
| Com_drop_db                    | 0            |
| Com_drop_function              | 0            |
| Com_drop_index                 | 0            |
| Com_drop_table                 | 0            |
| Com_drop_user                  | 0            |
| Com_execute_sql                | 0            |
| Com_flush                      | 0            |
| Com_grant                      | 0            |
| Com_ha_close                   | 0            |
| Com_ha_open                    | 0            |
| Com_ha_read                    | 0            |
| Com_help                       | 0            |
| Com_insert                     | 813569       |
| Com_insert_select              | 0            |
| Com_kill                       | 0            |
| Com_load                       | 0            |
| Com_load_master_data           | 0            |
| Com_load_master_table          | 0            |
| Com_lock_tables                | 5            |
| Com_optimize                   | 2            |
| Com_preload_keys               | 0            |
| Com_prepare_sql                | 0            |
| Com_purge                      | 0            |
| Com_purge_before_date          | 0            |
| Com_rename_table               | 0            |
| Com_repair                     | 0            |
| Com_replace                    | 30280        |
| Com_replace_select             | 0            |
| Com_reset                      | 0            |
| Com_restore_table              | 0            |
| Com_revoke                     | 0            |
| Com_revoke_all                 | 0            |
| Com_rollback                   | 0            |
| Com_savepoint                  | 0            |
| Com_select                     | 7985055      |
| Com_set_option                 | 654          |
| Com_show_binlog_events         | 0            |
| Com_show_binlogs               | 4            |
| Com_show_charsets              | 45           |
| Com_show_collations            | 45           |
| Com_show_column_types          | 0            |
| Com_show_create_db             | 14           |
| Com_show_create_table          | 471          |
| Com_show_databases             | 43           |
| Com_show_errors                | 0            |
| Com_show_fields                | 2753         |
| Com_show_grants                | 4            |
| Com_show_innodb_status         | 0            |
| Com_show_keys                  | 14           |
| Com_show_logs                  | 0            |
| Com_show_master_status         | 0            |
| Com_show_new_master            | 0            |
| Com_show_open_tables           | 0            |
| Com_show_privileges            | 0            |
| Com_show_processlist           | 0            |
| Com_show_slave_hosts           | 0            |
| Com_show_slave_status          | 0            |
| Com_show_status                | 82           |
| Com_show_storage_engines       | 0            |
| Com_show_tables                | 706          |
| Com_show_variables             | 200          |
| Com_show_warnings              | 0            |
| Com_slave_start                | 0            |
| Com_slave_stop                 | 0            |
| Com_truncate                   | 0            |
| Com_unlock_tables              | 5            |
| Com_update                     | 1464674      |
| Com_update_multi               | 0            |
| Connections                    | 50180        |
| Created_tmp_disk_tables        | 53135        |
| Created_tmp_files              | 27331        |
| Created_tmp_tables             | 1044002      |
| Delayed_errors                 | 0            |
| Delayed_insert_threads         | 0            |
| Delayed_writes                 | 0            |
| Flush_commands                 | 1            |
| Handler_commit                 | 0            |
| Handler_delete                 | 340995       |
| Handler_discover               | 0            |
| Handler_read_first             | 57594        |
| Handler_read_key               | 1012293691   |
| Handler_read_next              | 769499630    |
| Handler_read_prev              | 3356547      |
| Handler_read_rnd               | 119435929    |
| Handler_read_rnd_next          | 13488540869  |
| Handler_rollback               | 0            |
| Handler_update                 | 6601935      |
| Handler_write                  | 140832549    |
| Key_blocks_not_flushed         | 0            |
| Key_blocks_unused              | 295503       |
| Key_blocks_used                | 60691        |
| Key_read_requests              | 2986988388   |
| Key_reads                      | 223070       |
| Key_write_requests             | 9622453      |
| Key_writes                     | 793284       |
| Max_used_connections           | 371          |
| Not_flushed_delayed_rows       | 0            |
| Open_files                     | 359          |
| Open_streams                   | 0            |
| Open_tables                    | 253          |
| Opened_tables                  | 738          |
| Qcache_free_blocks             | 16002        |
| Qcache_free_memory             | 68684336     |
| Qcache_hits                    | 16945536     |
| Qcache_inserts                 | 7957975      |
| Qcache_lowmem_prunes           | 577728       |
| Qcache_not_cached              | 27079        |
| Qcache_queries_in_cache        | 27133        |
| Qcache_total_blocks            | 70794        |
| Questions                      | 28500030     |
| Rpl_status                     | NULL         |
| Select_full_join               | 40212        |
| Select_full_range_join         | 0            |
| Select_range                   | 1117553      |
| Select_range_check             | 0            |
| Select_scan                    | 3988735      |
| Slave_open_temp_tables         | 0            |
| Slave_running                  | OFF          |
| Slave_retried_transactions     | 0            |
| Slow_launch_threads            | 0            |
| Slow_queries                   | 0            |
| Sort_merge_passes              | 13684        |
| Sort_range                     | 1527449      |
| Sort_rows                      | 950393386    |
| Sort_scan                      | 915799       |
| Ssl_accept_renegotiates        | 0            |
| Ssl_accepts                    | 0            |
| Ssl_callback_cache_hits        | 0            |
| Ssl_cipher                     |              |
| Ssl_cipher_list                |              |
| Ssl_client_connects            | 0            |
| Ssl_connect_renegotiates       | 0            |
| Ssl_ctx_verify_depth           | 0            |
| Ssl_ctx_verify_mode            | 0            |
| Ssl_default_timeout            | 0            |
| Ssl_finished_accepts           | 0            |
| Ssl_finished_connects          | 0            |
| Ssl_session_cache_hits         | 0            |
| Ssl_session_cache_misses       | 0            |
| Ssl_session_cache_mode         | NONE         |
| Ssl_session_cache_overflows    | 0            |
| Ssl_session_cache_size         | 0            |
| Ssl_session_cache_timeouts     | 0            |
| Ssl_sessions_reused            | 0            |
| Ssl_used_session_cache_entries | 0            |
| Ssl_verify_depth               | 0            |
| Ssl_verify_mode                | 0            |
| Ssl_version                    |              |
| Table_locks_immediate          | 20662417     |
| Table_locks_waited             | 18955        |
| Threads_cached                 | 94           |
| Threads_connected              | 38           |
| Threads_created                | 809          |
| Threads_running                | 1            |
| Uptime                         | 289238       |
+--------------------------------+--------------+
180 rows in set (0.00 sec)
mysql>

*************************************************************************************
*************************************************************************************
****************** MORE INFO ********************************************************
*************************************************************************************
*************************************************************************************
Essentially, 99% of the day there is an average of 30 threads connected to the MySQL server. However, for some reason I cannot figure out, once or twice a day, this spikes to a ridiculously high number. When this happens, my Apache server is unable to connect to the database server. Additionally, trying to login via SSH to the database server at this time is futile, as well - apparently the server load average brings everything to a halt. Once I finally am able to login, all 3 server load averages displayed in 'top' are very low showing there was no spike in CPU time. However, I am not sure whether the MySQL connected threads reached its 1000 max during the period of downtime ... it was a couple hundred when I successfully established a connection with the server to check. From what I have been reading, it is a very bad idea to set max_connections to anything higher than 1000. Here are my currently set MySQL variables:

MySQL Syntax (Toggle Plain Text)
mysql> SHOW variables;
+---------------------------------+--------------------------------------------------------+
| Variable_name                   | Value                                                  |
+---------------------------------+--------------------------------------------------------+
| back_log                        | 50                                                     |
| basedir                         | /usr/                                                  |
| bdb_cache_size                  | 8388600                                                |
| bdb_home                        | /var/lib/mysql/                                        |
| bdb_log_buffer_size             | 262144                                                 |
| bdb_logdir                      |                                                        |
| bdb_max_lock                    | 10000                                                  |
| bdb_shared_data                 | OFF                                                    |
| bdb_tmpdir                      | /tmp/                                                  |
| binlog_cache_size               | 32768                                                  |
| bulk_insert_buffer_size         | 8388608                                                |
| character_set_client            | latin1                                                 |
| character_set_connection        | latin1                                                 |
| character_set_database          | latin1                                                 |
| character_set_results           | latin1                                                 |
| character_set_server            | latin1                                                 |
| character_set_system            | utf8                                                   |
| character_sets_dir              | /usr/share/mysql/charsets/                             |
| collation_connection            | latin1_swedish_ci                                      |
| collation_database              | latin1_swedish_ci                                      |
| collation_server                | latin1_swedish_ci                                      |
| concurrent_insert               | ON                                                     |
| connect_timeout                 | 5                                                      |
| datadir                         | /var/lib/mysql/                                        |
| DATE_FORMAT                     | %Y-%m-%d                                               |
| datetime_format                 | %Y-%m-%d %H:%i:%s                                      |
| default_week_format             | 0                                                      |
| delay_key_write                 | ON                                                     |
| delayed_insert_limit            | 100                                                    |
| delayed_insert_timeout          | 300                                                    |
| delayed_queue_size              | 1000                                                   |
| expire_logs_days                | 0                                                      |
| flush                           | OFF                                                    |
| flush_time                      | 0                                                      |
| ft_boolean_syntax               | + -><()~*:""&|                                         |
| ft_max_word_len                 | 84                                                     |
| ft_min_word_len                 | 3                                                      |
| ft_query_expansion_limit        | 20                                                     |
| ft_stopword_file                | (built-IN)                                             |
| group_concat_max_len            | 1024                                                   |
| have_archive                    | NO                                                     |
| have_bdb                        | YES                                                    |
| have_blackhole_engine           | NO                                                     |
| have_compress                   | YES                                                    |
| have_crypt                      | YES                                                    |
| have_csv                        | NO                                                     |
| have_example_engine             | NO                                                     |
| have_geometry                   | YES                                                    |
| have_innodb                     | YES                                                    |
| have_isam                       | YES                                                    |
| have_ndbcluster                 | NO                                                     |
| have_openssl                    | YES                                                    |
| have_query_cache                | YES                                                    |
| have_raid                       | NO                                                     |
| have_rtree_keys                 | YES                                                    |
| have_symlink                    | YES                                                    |
| init_connect                    |                                                        |
| init_file                       |                                                        |
| init_slave                      |                                                        |
| innodb_additional_mem_pool_size | 1048576                                                |
| innodb_autoextend_increment     | 8                                                      |
| innodb_buffer_pool_awe_mem_mb   | 0                                                      |
| innodb_buffer_pool_size         | 8388608                                                |
| innodb_data_file_path           | ibdata1:10M:autoextend                                 |
| innodb_data_home_dir            |                                                        |
| innodb_fast_shutdown            | ON                                                     |
| innodb_file_io_threads          | 4                                                      |
| innodb_file_per_table           | OFF                                                    |
| innodb_flush_log_at_trx_commit  | 1                                                      |
| innodb_flush_method             |                                                        |
| innodb_force_recovery           | 0                                                      |
| innodb_lock_wait_timeout        | 50                                                     |
| innodb_locks_unsafe_for_binlog  | OFF                                                    |
| innodb_log_arch_dir             |                                                        |
| innodb_log_archive              | OFF                                                    |
| innodb_log_buffer_size          | 1048576                                                |
| innodb_log_file_size            | 5242880                                                |
| innodb_log_files_in_group       | 2                                                      |
| innodb_log_group_home_dir       | ./                                                     |
| innodb_max_dirty_pages_pct      | 90                                                     |
| innodb_max_purge_lag            | 0                                                      |
| innodb_mirrored_log_groups      | 1                                                      |
| innodb_open_files               | 300                                                    |
| innodb_table_locks              | ON                                                     |
| innodb_thread_concurrency       | 8                                                      |
| interactive_timeout             | 28800                                                  |
| join_buffer_size                | 131072                                                 |
| key_buffer_size                 | 402653184                                              |
| key_cache_age_threshold         | 300                                                    |
| key_cache_block_size            | 1024                                                   |
| key_cache_division_limit        | 100                                                    |
| language                        | /usr/share/mysql/english/                              |
| large_files_support             | ON                                                     |
| license                         | GPL                                                    |
| local_infile                    | ON                                                     |
| locked_in_memory                | OFF                                                    |
| LOG                             | OFF                                                    |
| log_bin                         | OFF                                                    |
| log_error                       |                                                        |
| log_slave_updates               | OFF                                                    |
| log_slow_queries                | OFF                                                    |
| log_update                      | OFF                                                    |
| log_warnings                    | 1                                                      |
| long_query_time                 | 10                                                     |
| low_priority_updates            | OFF                                                    |
| lower_case_file_system          | OFF                                                    |
| lower_case_table_names          | 0                                                      |
| max_allowed_packet              | 1048576                                                |
| max_binlog_cache_size           | 18446744073709551615                                   |
| max_binlog_size                 | 1073741824                                             |
| max_connect_errors              | 10                                                     |
| max_connections                 | 1000                                                   |
| max_delayed_threads             | 20                                                     |
| max_error_count                 | 64                                                     |
| max_heap_table_size             | 16777216                                               |
| max_insert_delayed_threads      | 20                                                     |
| max_join_size                   | 18446744073709551615                                   |
| max_length_for_sort_data        | 1024                                                   |
| max_relay_log_size              | 0                                                      |
| max_seeks_for_key               | 18446744073709551615                                   |
| max_sort_length                 | 1024                                                   |
| max_tmp_tables                  | 32                                                     |
| max_user_connections            | 0                                                      |
| max_write_lock_count            | 18446744073709551615                                   |
| myisam_data_pointer_size        | 4                                                      |
| myisam_max_extra_sort_file_size | 2147483648                                             |
| myisam_max_sort_file_size       | 9223372036854775807                                    |
| myisam_recover_options          | OFF                                                    |
| myisam_repair_threads           | 1                                                      |
| myisam_sort_buffer_size         | 67108864                                               |
| net_buffer_length               | 16384                                                  |
| net_read_timeout                | 30                                                     |
| net_retry_count                 | 10                                                     |
| net_write_timeout               | 60                                                     |
| new                             | OFF                                                    |
| old_passwords                   | ON                                                     |
| open_files_limit                | 5010                                                   |
| pid_file                        | /var/run/mysqld/mysqld.pid                             |
| port                            | 3306                                                   |
| preload_buffer_size             | 32768                                                  |
| protocol_version                | 10                                                     |
| query_alloc_block_size          | 8192                                                   |
| query_cache_limit               | 8388608                                                |
| query_cache_min_res_unit        | 4096                                                   |
| query_cache_size                | 134217728                                              |
| query_cache_type                | ON                                                     |
| query_cache_wlock_invalidate    | OFF                                                    |
| query_prealloc_size             | 8192                                                   |
| range_alloc_block_size          | 2048                                                   |
| read_buffer_size                | 2093056                                                |
| read_only                       | OFF                                                    |
| read_rnd_buffer_size            | 8384512                                                |
| relay_log_purge                 | ON                                                     |
| relay_log_space_limit           | 0                                                      |
| rpl_recovery_rank               | 0                                                      |
| secure_auth                     | OFF                                                    |
| server_id                       | 0                                                      |
| skip_external_locking           | ON                                                     |
| skip_networking                 | OFF                                                    |
| skip_show_database              | OFF                                                    |
| slave_net_timeout               | 3600                                                   |
| slave_transaction_retries       | 0                                                      |
| slow_launch_time                | 2                                                      |
| socket                          | /var/lib/mysql/mysql.sock                              |
| sort_buffer_size                | 2097144                                                |
| sql_mode                        |                                                        |
| storage_engine                  | MyISAM                                                 |
| sql_notes                       | ON                                                     |
| sql_warnings                    | ON                                                     |
| sync_binlog                     | 0                                                      |
| sync_replication                | 0                                                      |
| sync_replication_slave_id       | 0                                                      |
| sync_replication_timeout        | 0                                                      |
| sync_frm                        | ON                                                     |
| system_time_zone                | CDT                                                    |
| table_cache                     | 512                                                    |
| table_type                      | MyISAM                                                 |
| thread_cache_size               | 100                                                    |
| thread_stack                    | 196608                                                 |
| TIME_FORMAT                     | %H:%i:%s                                               |
| time_zone                       | SYSTEM                                                 |
| tmp_table_size                  | 33554432                                               |
| tmpdir                          |                                                        |
| transaction_alloc_block_size    | 8192                                                   |
| transaction_prealloc_size       | 4096                                                   |
| tx_isolation                    | REPEATABLE-READ                                        |
| version                         | 4.1.12                                                 |
| version_bdb                     | Sleepycat Software: Berkeley DB 4.1.24: (May 13, 2005) |
| version_comment                 | Source distribution                                    |
| version_compile_machine         | x86_64                                                 |
| version_compile_os              | redhat-linux-gnu                                       |
| wait_timeout                    | 28800                                                  |
+---------------------------------+--------------------------------------------------------+
192 rows IN SET (0.00 sec)
mysql>
mysql> show variables;
+---------------------------------+--------------------------------------------------------+
| Variable_name                   | Value                                                  |
+---------------------------------+--------------------------------------------------------+
| back_log                        | 50                                                     |
| basedir                         | /usr/                                                  |
| bdb_cache_size                  | 8388600                                                |
| bdb_home                        | /var/lib/mysql/                                        |
| bdb_log_buffer_size             | 262144                                                 |
| bdb_logdir                      |                                                        |
| bdb_max_lock                    | 10000                                                  |
| bdb_shared_data                 | OFF                                                    |
| bdb_tmpdir                      | /tmp/                                                  |
| binlog_cache_size               | 32768                                                  |
| bulk_insert_buffer_size         | 8388608                                                |
| character_set_client            | latin1                                                 |
| character_set_connection        | latin1                                                 |
| character_set_database          | latin1                                                 |
| character_set_results           | latin1                                                 |
| character_set_server            | latin1                                                 |
| character_set_system            | utf8                                                   |
| character_sets_dir              | /usr/share/mysql/charsets/                             |
| collation_connection            | latin1_swedish_ci                                      |
| collation_database              | latin1_swedish_ci                                      |
| collation_server                | latin1_swedish_ci                                      |
| concurrent_insert               | ON                                                     |
| connect_timeout                 | 5                                                      |
| datadir                         | /var/lib/mysql/                                        |
| date_format                     | %Y-%m-%d                                               |
| datetime_format                 | %Y-%m-%d %H:%i:%s                                      |
| default_week_format             | 0                                                      |
| delay_key_write                 | ON                                                     |
| delayed_insert_limit            | 100                                                    |
| delayed_insert_timeout          | 300                                                    |
| delayed_queue_size              | 1000                                                   |
| expire_logs_days                | 0                                                      |
| flush                           | OFF                                                    |
| flush_time                      | 0                                                      |
| ft_boolean_syntax               | + -><()~*:""&|                                         |
| ft_max_word_len                 | 84                                                     |
| ft_min_word_len                 | 3                                                      |
| ft_query_expansion_limit        | 20                                                     |
| ft_stopword_file                | (built-in)                                             |
| group_concat_max_len            | 1024                                                   |
| have_archive                    | NO                                                     |
| have_bdb                        | YES                                                    |
| have_blackhole_engine           | NO                                                     |
| have_compress                   | YES                                                    |
| have_crypt                      | YES                                                    |
| have_csv                        | NO                                                     |
| have_example_engine             | NO                                                     |
| have_geometry                   | YES                                                    |
| have_innodb                     | YES                                                    |
| have_isam                       | YES                                                    |
| have_ndbcluster                 | NO                                                     |
| have_openssl                    | YES                                                    |
| have_query_cache                | YES                                                    |
| have_raid                       | NO                                                     |
| have_rtree_keys                 | YES                                                    |
| have_symlink                    | YES                                                    |
| init_connect                    |                                                        |
| init_file                       |                                                        |
| init_slave                      |                                                        |
| innodb_additional_mem_pool_size | 1048576                                                |
| innodb_autoextend_increment     | 8                                                      |
| innodb_buffer_pool_awe_mem_mb   | 0                                                      |
| innodb_buffer_pool_size         | 8388608                                                |
| innodb_data_file_path           | ibdata1:10M:autoextend                                 |
| innodb_data_home_dir            |                                                        |
| innodb_fast_shutdown            | ON                                                     |
| innodb_file_io_threads          | 4                                                      |
| innodb_file_per_table           | OFF                                                    |
| innodb_flush_log_at_trx_commit  | 1                                                      |
| innodb_flush_method             |                                                        |
| innodb_force_recovery           | 0                                                      |
| innodb_lock_wait_timeout        | 50                                                     |
| innodb_locks_unsafe_for_binlog  | OFF                                                    |
| innodb_log_arch_dir             |                                                        |
| innodb_log_archive              | OFF                                                    |
| innodb_log_buffer_size          | 1048576                                                |
| innodb_log_file_size            | 5242880                                                |
| innodb_log_files_in_group       | 2                                                      |
| innodb_log_group_home_dir       | ./                                                     |
| innodb_max_dirty_pages_pct      | 90                                                     |
| innodb_max_purge_lag            | 0                                                      |
| innodb_mirrored_log_groups      | 1                                                      |
| innodb_open_files               | 300                                                    |
| innodb_table_locks              | ON                                                     |
| innodb_thread_concurrency       | 8                                                      |
| interactive_timeout             | 28800                                                  |
| join_buffer_size                | 131072                                                 |
| key_buffer_size                 | 402653184                                              |
| key_cache_age_threshold         | 300                                                    |
| key_cache_block_size            | 1024                                                   |
| key_cache_division_limit        | 100                                                    |
| language                        | /usr/share/mysql/english/                              |
| large_files_support             | ON                                                     |
| license                         | GPL                                                    |
| local_infile                    | ON                                                     |
| locked_in_memory                | OFF                                                    |
| log                             | OFF                                                    |
| log_bin                         | OFF                                                    |
| log_error                       |                                                        |
| log_slave_updates               | OFF                                                    |
| log_slow_queries                | OFF                                                    |
| log_update                      | OFF                                                    |
| log_warnings                    | 1                                                      |
| long_query_time                 | 10                                                     |
| low_priority_updates            | OFF                                                    |
| lower_case_file_system          | OFF                                                    |
| lower_case_table_names          | 0                                                      |
| max_allowed_packet              | 1048576                                                |
| max_binlog_cache_size           | 18446744073709551615                                   |
| max_binlog_size                 | 1073741824                                             |
| max_connect_errors              | 10                                                     |
| max_connections                 | 1000                                                   |
| max_delayed_threads             | 20                                                     |
| max_error_count                 | 64                                                     |
| max_heap_table_size             | 16777216                                               |
| max_insert_delayed_threads      | 20                                                     |
| max_join_size                   | 18446744073709551615                                   |
| max_length_for_sort_data        | 1024                                                   |
| max_relay_log_size              | 0                                                      |
| max_seeks_for_key               | 18446744073709551615                                   |
| max_sort_length                 | 1024                                                   |
| max_tmp_tables                  | 32                                                     |
| max_user_connections            | 0                                                      |
| max_write_lock_count            | 18446744073709551615                                   |
| myisam_data_pointer_size        | 4                                                      |
| myisam_max_extra_sort_file_size | 2147483648                                             |
| myisam_max_sort_file_size       | 9223372036854775807                                    |
| myisam_recover_options          | OFF                                                    |
| myisam_repair_threads           | 1                                                      |
| myisam_sort_buffer_size         | 67108864                                               |
| net_buffer_length               | 16384                                                  |
| net_read_timeout                | 30                                                     |
| net_retry_count                 | 10                                                     |
| net_write_timeout               | 60                                                     |
| new                             | OFF                                                    |
| old_passwords                   | ON                                                     |
| open_files_limit                | 5010                                                   |
| pid_file                        | /var/run/mysqld/mysqld.pid                             |
| port                            | 3306                                                   |
| preload_buffer_size             | 32768                                                  |
| protocol_version                | 10                                                     |
| query_alloc_block_size          | 8192                                                   |
| query_cache_limit               | 8388608                                                |
| query_cache_min_res_unit        | 4096                                                   |
| query_cache_size                | 134217728                                              |
| query_cache_type                | ON                                                     |
| query_cache_wlock_invalidate    | OFF                                                    |
| query_prealloc_size             | 8192                                                   |
| range_alloc_block_size          | 2048                                                   |
| read_buffer_size                | 2093056                                                |
| read_only                       | OFF                                                    |
| read_rnd_buffer_size            | 8384512                                                |
| relay_log_purge                 | ON                                                     |
| relay_log_space_limit           | 0                                                      |
| rpl_recovery_rank               | 0                                                      |
| secure_auth                     | OFF                                                    |
| server_id                       | 0                                                      |
| skip_external_locking           | ON                                                     |
| skip_networking                 | OFF                                                    |
| skip_show_database              | OFF                                                    |
| slave_net_timeout               | 3600                                                   |
| slave_transaction_retries       | 0                                                      |
| slow_launch_time                | 2                                                      |
| socket                          | /var/lib/mysql/mysql.sock                              |
| sort_buffer_size                | 2097144                                                |
| sql_mode                        |                                                        |
| storage_engine                  | MyISAM                                                 |
| sql_notes                       | ON                                                     |
| sql_warnings                    | ON                                                     |
| sync_binlog                     | 0                                                      |
| sync_replication                | 0                                                      |
| sync_replication_slave_id       | 0                                                      |
| sync_replication_timeout        | 0                                                      |
| sync_frm                        | ON                                                     |
| system_time_zone                | CDT                                                    |
| table_cache                     | 512                                                    |
| table_type                      | MyISAM                                                 |
| thread_cache_size               | 100                                                    |
| thread_stack                    | 196608                                                 |
| time_format                     | %H:%i:%s                                               |
| time_zone                       | SYSTEM                                                 |
| tmp_table_size                  | 33554432                                               |
| tmpdir                          |                                                        |
| transaction_alloc_block_size    | 8192                                                   |
| transaction_prealloc_size       | 4096                                                   |
| tx_isolation                    | REPEATABLE-READ                                        |
| version                         | 4.1.12                                                 |
| version_bdb                     | Sleepycat Software: Berkeley DB 4.1.24: (May 13, 2005) |
| version_comment                 | Source distribution                                    |
| version_compile_machine         | x86_64                                                 |
| version_compile_os              | redhat-linux-gnu                                       |
| wait_timeout                    | 28800                                                  |
+---------------------------------+--------------------------------------------------------+
192 rows in set (0.00 sec)
mysql>

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cscgal

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The Queen of DaniWeb

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13,646 posts
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Apr 22nd, 2006

Re: Cannot connect to server

I think I got to the bottom of this issue

It turns out, strangely enough, that MySQL has a tendency to leak connections when it is unable to resolve the hostname of who is connecting to it. I added an entry into the /etc/hosts files of both my web and db servers to map the hostname to IP address of the other one, and haven't had problems for almost one full day. So we'll see how it goes ......

cscgal

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Reputation Points: 1422

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The Queen of DaniWeb

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Apr 26th, 2006

Re: Cannot connect to server

Now why do you need an Expert when your the mastermind here

:eek:

Phil

PillFORM

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Apr 27th, 2006

Re: Cannot connect to server

Quote originally posted by PillFORM ...

Now why do you need an Expert when your the mastermind here

:eek:

Phil

necesito una Data base para mi web xD

taxista

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since Apr 2006

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Apr 29th, 2006

Re: Cannot connect to server

lol i wonder why.. but remember no body is kinda perfect

smartsoft

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Newbie Poster

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5 posts
since Apr 2006

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May 8th, 2006

Re: Cannot connect to server

Hey Dani, also try logging slow queries. This is a great way to see where you may have some indexes not being used or other bottlenecks.

barnamos

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since Mar 2005

This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.

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