[opencms-dev] MySQLNonTransientConnectionException - too many connections
Paul-Inge Flakstad
flakstad at npolar.no
Wed May 4 10:09:38 CEST 2011
Hi Achim,
No I haven't. Was planning on doing it today, but due to today's "crash", I haven't gotten around to it yet. The flex cache is out-of-the-box.
Nice quote btw, hehe! ;)
Best regards,
Paul
> -----Original Message-----
> From: opencms-dev-bounces at opencms.org
> [mailto:opencms-dev-bounces at opencms.org] On Behalf Of Achim Westermann
> Sent: 4. mai 2011 10:06
> To: The OpenCms mailing list
> Subject: Re: [opencms-dev]
> MySQLNonTransientConnectionException - too many connections
>
> Hi Paul-Inge,
>
> I think before tuning mysql you should be sure to avoid
> unnecessary queries. I don't know so I ask: Did you tune the
> flex cache settings? like Marc Fleury said: "Cache is king"
> (http://ottoyuen.com/library/articles/blue.pdf).
>
> cheers,
>
> Achim
>
> -------- Original-Nachricht --------
> > Datum: Wed, 4 May 2011 09:53:21 +0200
> > Von: Paul-Inge Flakstad <flakstad at npolar.no>
> > An: The OpenCms mailing list <opencms-dev at opencms.org>
> > Betreff: Re: [opencms-dev]
> MySQLNonTransientConnectionException - too many connections
>
> > Well, things are not well...
> >
> > The site is EXTREMELY slow again, no doubt due to the
> amount of traffic.
> >
> > It was fine yesterday, and earlier this morning. (I'm
> guessing something
> > happened the moment that the amount of requests increased
> as people arrived
> > at work around 9am.)
> >
> > When attempting to open a page:
> > 1.) Page starts loading, but takes forever to complete OR
> > 2.) Page never completes, instead you get a 503 (from
> Apache, not OpenCms)
> >
> > As far as I can see, Java/MySQL is not hogging CPU/memory
> during "hanging
> > requests".
> >
> > This site should be able to handle tens of thousands
> pageviews per day,
> > and should handle about 3000-5000 pageviews per day. Most
> request are made
> > during working hours.
> >
> > As of now, I'm guessing we're nowhere near those numbers.
> >
> > NOTE: There are also 2 other opencms instances, hosting
> smaller sites,
> > running on the same Tomcat.
> >
> > I tried restarting MySQL. It stopped, and won't start now.
> Looking into it
> > now.
> >
> > Oh, and I found this in the Apache log:
> > [Wed May 04 08:27:45 2011] [error] (70007)The timeout specified has
> > expired: ajp_ilink_receive() can't receive header
> > [Wed May 04 08:27:45 2011] [error] ajp_read_header:
> ajp_ilink_receive
> > failed
> > [Wed May 04 08:27:45 2011] [error] (120006)APR does not
> understand this
> > error code: proxy: read response failed from 127.0.0.1:8009
> (localhost)
> > [Wed May 04 08:27:48 2011] [error] (70007)The timeout specified has
> > expired: ajp_ilink_receive() can't receive header
> > [Wed May 04 08:27:48 2011] [error] ajp_read_header:
> ajp_ilink_receive
> > failed
> > [Wed May 04 08:27:48 2011] [error] (120006)APR does not understand
> >
> >
> > MySQL:
> >
> > ######### BEGIN my.cnf ##########
> > [root at abel ~]# vi /etc/my.cnf
> > [mysqld]
> > datadir=/var/lib/mysql
> > socket=/var/lib/mysql/mysql.sock
> > user=mysql
> >
> > #skip-name-resolve
> >
> > # Set some reasonable max-sizes
> > max_allowed_packet=128M
> > max_connections=200
> > max_connect_errors=100
> > max_tmp_tables=128M
> >
> > # In-memory cache
> > query_cache_size=128M
> > table_cache=512
> > thread_cache_size=128
> > key_buffer_size=4096M # size of the buffer used for index
> blocks: aka "key
> > cache"
> >
> > # Try number of CPU's*2 for thread_concurrency
> > thread_concurrency=4
> >
> > # Enable logging of slow queres, default 10 seconds
> > log-slow-queries
> > # Log queries taking longer than 5 seconds
> > long_query_time=5
> >
> > # Default to using old password format for compatibility
> with mysql 3.x
> > # clients (those using the mysqlclient10 compatibility package).
> > old_passwords=1
> >
> > [mysqld_safe]
> > log-error=/var/log/mysqld.log
> > pid-file=/var/run/mysqld/mysqld.pid
> > ############# END my.cnf ############
> >
> > ############# BEGIN mysqld-slow.log ############
> > # Query_time: 60 Lock_time: 0 Rows_sent: 0 Rows_examined: 0
> > use npcms;
> > INSERT INTO CMS_RESOURCE_LOCKS
> > (RESOURCE_PATH,USER_ID,PROJECT_ID,LOCK_TYPE) VALUES
> >
> ('/sites/np/en/people/oystein.varpe/index.html','bfe07a29-724e
> -11e0-806c-00237dea8b58','66017d61-6cb8-11df-91d1-00237dea8b58',4);
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
> > Time Id Command Argument
> > /usr/libexec/mysqld, Version: 5.0.77-log (Source
> distribution). started
> > with:
> > Tcp p
> > ############# END mysqld-slow.log ############
> >
> > mysql> show processlist;
> >
> +-----+------+-----------------+---------+---------+------+---
> ----+------------------+
> > | Id | User | Host | db | Command | Time |
> State | Info
> > |
> >
> +-----+------+-----------------+---------+---------+------+---
> ----+------------------+
> > | 60 | root | localhost:50548 | npcms | Sleep | 7487 |
> | NULL
> > |
> > | 90 | root | localhost:59594 | npcms | Sleep | 7490 |
> | NULL
> > |
> > | 91 | root | localhost:59595 | npcms | Sleep | 7134 |
> | NULL
> > |
> > | 100 | root | localhost:59604 | npcms | Sleep | 980 |
> | NULL
> > |
> > | 253 | root | localhost:51290 | opencms | Sleep | 1 |
> | NULL
> > |
> > | 254 | root | localhost:51291 | opencms | Sleep | 1564 |
> | NULL
> > |
> > | 256 | root | localhost:56245 | npcms | Sleep | 379 |
> | NULL
> > |
> > | 257 | root | localhost:56246 | npcms | Sleep | 7487 |
> | NULL
> > |
> > | 258 | root | localhost:56249 | npcms | Sleep | 980 |
> | NULL
> > |
> > | 259 | root | localhost:56250 | npcms | Sleep | 7487 |
> | NULL
> > |
> > | 260 | root | localhost:56251 | npcms | Sleep | 4 |
> | NULL
> > |
> > | 261 | root | localhost:56254 | npcms | Sleep | 7489 |
> | NULL
> > |
> > | 262 | root | localhost:56255 | npcms | Sleep | 7487 |
> | NULL
> > |
> > | 263 | root | localhost:56256 | npcms | Sleep | 7489 |
> | NULL
> > |
> > | 266 | root | localhost:56259 | npcms | Sleep | 980 |
> | NULL
> > |
> > | 267 | root | localhost:56260 | npcms | Sleep | 7488 |
> | NULL
> > |
> > | 270 | root | localhost:56263 | npcms | Sleep | 3729 |
> | NULL
> > |
> > | 271 | root | localhost:56264 | npcms | Sleep | 7487 |
> | NULL
> > |
> > | 272 | root | localhost:56265 | npcms | Sleep | 7134 |
> | NULL
> > |
> > | 274 | root | localhost:56267 | npcms | Sleep | 7487 |
> | NULL
> > |
> > | 276 | root | localhost:56269 | npcms | Sleep | 7489 |
> | NULL
> > |
> > | 277 | root | localhost:56270 | npcms | Sleep | 7487 |
> | NULL
> > |
> > | 278 | root | localhost:56271 | npcms | Sleep | 7487 |
> | NULL
> > |
> > | 279 | root | localhost:56272 | npcms | Sleep | 7488 |
> | NULL
> > |
> > | 280 | root | localhost:56273 | npcms | Sleep | 7134 |
> | NULL
> > |
> > | 281 | root | localhost:56274 | npcms | Sleep | 7488 |
> | NULL
> > |
> > | 282 | root | localhost:40350 | opencms | Sleep | 417 |
> | NULL
> > |
> > | 290 | root | localhost:42042 | accms | Sleep | 610 |
> | NULL
> > |
> > | 296 | root | localhost | NULL | Query | 0 |
> NULL | show
> > processlist |
> >
> +-----+------+-----------------+---------+---------+------+---
> ----+------------------+
> > 29 rows in set (0.00 sec)
> >
> > mysql> show status;
> > +-----------------------------------+----------+
> > | Variable_name | Value |
> > +-----------------------------------+----------+
> > | Aborted_clients | 58 |
> > | Aborted_connects | 1 |
> > | Binlog_cache_disk_use | 0 |
> > | Binlog_cache_use | 0 |
> > | Bytes_received | 144 |
> > | Bytes_sent | 6446 |
> > | Com_admin_commands | 0 |
> > | Com_alter_db | 0 |
> > | Com_alter_table | 0 |
> > | Com_analyze | 0 |
> > | Com_backup_table | 0 |
> > | Com_begin | 0 |
> > | Com_call_procedure | 0 |
> > | Com_change_db | 0 |
> > | 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 | 0 |
> > | Com_create_user | 0 |
> > | Com_dealloc_sql | 0 |
> > | Com_delete | 0 |
> > | 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 | 0 |
> > | Com_insert_select | 0 |
> > | Com_kill | 0 |
> > | Com_load | 0 |
> > | Com_load_master_data | 0 |
> > | Com_load_master_table | 0 |
> > | Com_lock_tables | 0 |
> > | Com_optimize | 0 |
> > | 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 | 0 |
> > | 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 | 1 |
> > | Com_set_option | 0 |
> > | Com_show_binlog_events | 0 |
> > | Com_show_binlogs | 0 |
> > | Com_show_charsets | 0 |
> > | Com_show_collations | 0 |
> > | Com_show_column_types | 0 |
> > | Com_show_create_db | 0 |
> > | Com_show_create_table | 0 |
> > | Com_show_databases | 0 |
> > | Com_show_errors | 0 |
> > | Com_show_fields | 0 |
> > | Com_show_grants | 0 |
> > | Com_show_innodb_status | 0 |
> > | Com_show_keys | 0 |
> > | Com_show_logs | 0 |
> > | Com_show_master_status | 0 |
> > | Com_show_ndb_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 | 2 |
> > | Com_show_storage_engines | 0 |
> > | Com_show_tables | 0 |
> > | Com_show_triggers | 0 |
> > | Com_show_variables | 0 |
> > | Com_show_warnings | 0 |
> > | Com_slave_start | 0 |
> > | Com_slave_stop | 0 |
> > | Com_stmt_close | 0 |
> > | Com_stmt_execute | 0 |
> > | Com_stmt_fetch | 0 |
> > | Com_stmt_prepare | 0 |
> > | Com_stmt_reset | 0 |
> > | Com_stmt_send_long_data | 0 |
> > | Com_truncate | 0 |
> > | Com_unlock_tables | 0 |
> > | Com_update | 0 |
> > | Com_update_multi | 0 |
> > | Com_xa_commit | 0 |
> > | Com_xa_end | 0 |
> > | Com_xa_prepare | 0 |
> > | Com_xa_recover | 0 |
> > | Com_xa_rollback | 0 |
> > | Com_xa_start | 0 |
> > | Compression | OFF |
> > | Connections | 295 |
> > | Created_tmp_disk_tables | 0 |
> > | Created_tmp_files | 51 |
> > | Created_tmp_tables | 2 |
> > | Delayed_errors | 0 |
> > | Delayed_insert_threads | 0 |
> > | Delayed_writes | 0 |
> > | Flush_commands | 1 |
> > | Handler_commit | 0 |
> > | Handler_delete | 0 |
> > | Handler_discover | 0 |
> > | Handler_prepare | 0 |
> > | Handler_read_first | 0 |
> > | Handler_read_key | 0 |
> > | Handler_read_next | 0 |
> > | Handler_read_prev | 0 |
> > | Handler_read_rnd | 0 |
> > | Handler_read_rnd_next | 250 |
> > | Handler_rollback | 0 |
> > | Handler_savepoint | 0 |
> > | Handler_savepoint_rollback | 0 |
> > | Handler_update | 0 |
> > | Handler_write | 381 |
> > | Innodb_buffer_pool_pages_data | 25 |
> > | Innodb_buffer_pool_pages_dirty | 0 |
> > | Innodb_buffer_pool_pages_flushed | 1 |
> > | Innodb_buffer_pool_pages_free | 487 |
> > | Innodb_buffer_pool_pages_misc | 0 |
> > | Innodb_buffer_pool_pages_total | 512 |
> > | Innodb_buffer_pool_read_ahead_rnd | 1 |
> > | Innodb_buffer_pool_read_ahead_seq | 0 |
> > | Innodb_buffer_pool_read_requests | 554 |
> > | Innodb_buffer_pool_reads | 18 |
> > | Innodb_buffer_pool_wait_free | 0 |
> > | Innodb_buffer_pool_write_requests | 1 |
> > | Innodb_data_fsyncs | 7 |
> > | Innodb_data_pending_fsyncs | 0 |
> > | Innodb_data_pending_reads | 0 |
> > | Innodb_data_pending_writes | 0 |
> > | Innodb_data_read | 2592768 |
> > | Innodb_data_reads | 31 |
> > | Innodb_data_writes | 7 |
> > | Innodb_data_written | 35328 |
> > | Innodb_dblwr_pages_written | 1 |
> > | Innodb_dblwr_writes | 1 |
> > | Innodb_log_waits | 0 |
> > | Innodb_log_write_requests | 0 |
> > | Innodb_log_writes | 2 |
> > | Innodb_os_log_fsyncs | 5 |
> > | Innodb_os_log_pending_fsyncs | 0 |
> > | Innodb_os_log_pending_writes | 0 |
> > | Innodb_os_log_written | 1024 |
> > | Innodb_page_size | 16384 |
> > | Innodb_pages_created | 0 |
> > | Innodb_pages_read | 25 |
> > | Innodb_pages_written | 1 |
> > | Innodb_row_lock_current_waits | 0 |
> > | Innodb_row_lock_time | 0 |
> > | Innodb_row_lock_time_avg | 0 |
> > | Innodb_row_lock_time_max | 0 |
> > | Innodb_row_lock_waits | 0 |
> > | Innodb_rows_deleted | 0 |
> > | Innodb_rows_inserted | 0 |
> > | Innodb_rows_read | 25 |
> > | Innodb_rows_updated | 0 |
> > | Key_blocks_not_flushed | 0 |
> > | Key_blocks_unused | 3413964 |
> > | Key_blocks_used | 15508 |
> > | Key_read_requests | 48359034 |
> > | Key_reads | 31139 |
> > | Key_write_requests | 227591 |
> > | Key_writes | 130452 |
> > | Last_query_cost | 0.000000 |
> > | Max_used_connections | 124 |
> > | Not_flushed_delayed_rows | 0 |
> > | Open_files | 413 |
> > | Open_streams | 0 |
> > | Open_tables | 315 |
> > | Opened_tables | 0 |
> > | Prepared_stmt_count | 0 |
> > | Qcache_free_blocks | 65 |
> > | Qcache_free_memory | 36690328 |
> > | Qcache_hits | 13165331 |
> > | Qcache_inserts | 1098712 |
> > | Qcache_lowmem_prunes | 0 |
> > | Qcache_not_cached | 235351 |
> > | Qcache_queries_in_cache | 32218 |
> > | Qcache_total_blocks | 64620 |
> > | Queries | 14543660 |
> > | Questions | 3 |
> > | Rpl_status | NULL |
> > | Select_full_join | 0 |
> > | Select_full_range_join | 0 |
> > | Select_range | 0 |
> > | Select_range_check | 0 |
> > | Select_scan | 2 |
> > | Slave_open_temp_tables | 0 |
> > | Slave_retried_transactions | 0 |
> > | Slave_running | OFF |
> > | Slow_launch_threads | 0 |
> > | Slow_queries | 0 |
> > | Sort_merge_passes | 0 |
> > | Sort_range | 0 |
> > | Sort_rows | 0 |
> > | Sort_scan | 0 |
> > | 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 | 2995944 |
> > | Table_locks_waited | 852 |
> > | Tc_log_max_pages_used | 0 |
> > | Tc_log_page_size | 0 |
> > | Tc_log_page_waits | 0 |
> > | Threads_cached | 95 |
> > | Threads_connected | 29 |
> > | Threads_created | 124 |
> > | Threads_running | 1 |
> > | Uptime | 60386 |
> > | Uptime_since_flush_status | 14543660 |
> > +-----------------------------------+----------+
> > 249 rows in set (0.00 sec)
> >
> > mysql> show variables;
> >
> +---------------------------------+---------------------------
> ---------------------------------+
> > | Variable_name | Value
>
> > |
> >
> +---------------------------------+---------------------------
> ---------------------------------+
> > | auto_increment_increment | 1
>
> > |
> > | auto_increment_offset | 1
>
> > |
> > | automatic_sp_privileges | ON
>
> > |
> > | back_log | 50
>
> > |
> > | bdb_cache_size | 8384512
>
> > |
> > | 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
>
> > |
> > | completion_type | 0
>
> > |
> > | concurrent_insert | 1
>
> > |
> > | connect_timeout | 10
>
> > |
> > | default_week_format | 0
>
> > |
> > | delay_key_write | ON
>
> > |
> > | delayed_insert_limit | 100
>
> > |
> > | delayed_insert_timeout | 300
>
> > |
> > | delayed_queue_size | 1000
>
> > |
> > | div_precision_increment | 4
>
> > |
> > | keep_files_on_create | OFF
>
> > |
> > | engine_condition_pushdown | OFF
>
> > |
> > | expire_logs_days | 0
>
> > |
> > | flush | OFF
>
> > |
> > | flush_time | 0
>
> > |
> > | ft_boolean_syntax | + -><()~*:""&|
>
> > |
> > | ft_max_word_len | 84
>
> > |
> > | ft_min_word_len | 4
>
> > |
> > | 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_dynamic_loading | YES
>
> > |
> > | have_example_engine | NO
>
> > |
> > | have_federated_engine | NO
>
> > |
> > | have_geometry | YES
>
> > |
> > | have_innodb | YES
>
> > |
> > | have_isam | NO
>
> > |
> > | have_merge_engine | YES
>
> > |
> > | have_ndbcluster | NO
>
> > |
> > | have_openssl | DISABLED
>
> > |
> > | have_ssl | DISABLED
>
> > |
> > | 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_checksums | ON
>
> > |
> > | innodb_commit_concurrency | 0
>
> > |
> > | innodb_concurrency_tickets | 500
>
> > |
> > | innodb_data_file_path | ibdata1:10M:autoextend
>
> > |
> > | innodb_data_home_dir |
>
> > |
> > | innodb_adaptive_hash_index | ON
>
> > |
> > | innodb_doublewrite | ON
>
> > |
> > | innodb_fast_shutdown | 1
>
> > |
> > | 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_rollback_on_timeout | OFF
>
> > |
> > | innodb_support_xa | ON
>
> > |
> > | innodb_sync_spin_loops | 20
>
> > |
> > | innodb_table_locks | ON
>
> > |
> > | innodb_thread_concurrency | 8
>
> > |
> > | innodb_thread_sleep_delay | 10000
>
> > |
> > | interactive_timeout | 28800
>
> > |
> > | join_buffer_size | 131072
>
> > |
> > | key_buffer_size | 4294967296
>
> > |
> > | key_cache_age_threshold | 300
>
> > |
> > | key_cache_block_size | 1024
>
> > |
> > | key_cache_division_limit | 100
>
> > |
> > | language |
> /usr/share/mysql/english/
> > |
> > | large_files_support | ON
>
> > |
> > | large_page_size | 0
>
> > |
> > | large_pages | OFF
>
> > |
> > | lc_time_names | en_US
>
> > |
> > | license | GPL
>
> > |
> > | local_infile | ON
>
> > |
> > | locked_in_memory | OFF
>
> > |
> > | log | OFF
>
> > |
> > | log_bin | OFF
>
> > |
> > | log_bin_trust_function_creators | OFF
>
> > |
> > | log_error |
>
> > |
> > | log_queries_not_using_indexes | OFF
>
> > |
> > | log_slave_updates | OFF
>
> > |
> > | log_slow_queries | ON
>
> > |
> > | log_warnings | 1
>
> > |
> > | long_query_time | 5
>
> > |
> > | low_priority_updates | OFF
>
> > |
> > | lower_case_file_system | OFF
>
> > |
> > | lower_case_table_names | 0
>
> > |
> > | max_allowed_packet | 134217728
>
> > |
> > | max_binlog_cache_size | 18446744073709547520
>
> > |
> > | max_binlog_size | 1073741824
>
> > |
> > | max_connect_errors | 100
>
> > |
> > | max_connections | 200
>
> > |
> > | 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_prepared_stmt_count | 16382
>
> > |
> > | max_relay_log_size | 0
>
> > |
> > | max_seeks_for_key | 18446744073709551615
>
> > |
> > | max_sort_length | 1024
>
> > |
> > | max_sp_recursion_depth | 0
>
> > |
> > | max_tmp_tables | 134217728
>
> > |
> > | max_user_connections | 0
>
> > |
> > | max_write_lock_count | 18446744073709551615
>
> > |
> > | multi_range_count | 256
>
> > |
> > | myisam_data_pointer_size | 6
>
> > |
> > | myisam_max_sort_file_size | 9223372036853727232
>
> > |
> > | myisam_recover_options | OFF
>
> > |
> > | myisam_repair_threads | 1
>
> > |
> > | myisam_sort_buffer_size | 8388608
>
> > |
> > | myisam_stats_method | nulls_unequal
>
> > |
> > | net_buffer_length | 16384
>
> > |
> > | net_read_timeout | 30
>
> > |
> > | net_retry_count | 10
>
> > |
> > | net_write_timeout | 60
>
> > |
> > | new | OFF
>
> > |
> > | old_passwords | ON
>
> > |
> > | open_files_limit | 1234
>
> > |
> > | optimizer_prune_level | 1
>
> > |
> > | optimizer_search_depth | 62
>
> > |
> > | pid_file |
> /var/run/mysqld/mysqld.pid
> > |
> > | plugin_dir |
>
> > |
> > | port | 3306
>
> > |
> > | preload_buffer_size | 32768
>
> > |
> > | profiling | OFF
>
> > |
> > | profiling_history_size | 15
>
> > |
> > | protocol_version | 10
>
> > |
> > | query_alloc_block_size | 8192
>
> > |
> > | query_cache_limit | 1048576
>
> > |
> > | 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 | 4096
>
> > |
> > | read_buffer_size | 131072
>
> > |
> > | read_only | OFF
>
> > |
> > | read_rnd_buffer_size | 262144
>
> > |
> > | relay_log |
>
> > |
> > | relay_log_index |
>
> > |
> > | relay_log_info_file | relay-log.info
>
> > |
> > | relay_log_purge | ON
>
> > |
> > | relay_log_space_limit | 0
>
> > |
> > | rpl_recovery_rank | 0
>
> > |
> > | secure_auth | OFF
>
> > |
> > | secure_file_priv |
>
> > |
> > | server_id | 0
>
> > |
> > | skip_external_locking | ON
>
> > |
> > | skip_networking | OFF
>
> > |
> > | skip_show_database | OFF
>
> > |
> > | slave_compressed_protocol | OFF
>
> > |
> > | slave_load_tmpdir | /tmp/
>
> > |
> > | slave_net_timeout | 3600
>
> > |
> > | slave_skip_errors | OFF
>
> > |
> > | slave_transaction_retries | 10
>
> > |
> > | slow_launch_time | 2
>
> > |
> > | socket |
> /var/lib/mysql/mysql.sock
> > |
> > | sort_buffer_size | 2097144
>
> > |
> > | sql_big_selects | ON
>
> > |
> > | sql_mode |
>
> > |
> > | sql_notes | ON
>
> > |
> > | sql_warnings | OFF
>
> > |
> > | ssl_ca |
>
> > |
> > | ssl_capath |
>
> > |
> > | ssl_cert |
>
> > |
> > | ssl_cipher |
>
> > |
> > | ssl_key |
>
> > |
> > | storage_engine | MyISAM
>
> > |
> > | sync_binlog | 0
>
> > |
> > | sync_frm | ON
>
> > |
> > | system_time_zone | CEST
>
> > |
> > | table_cache | 512
>
> > |
> > | table_lock_wait_timeout | 50
>
> > |
> > | table_type | MyISAM
>
> > |
> > | thread_cache_size | 128
>
> > |
> > | thread_stack | 262144
>
> > |
> > | time_format | %H:%i:%s
>
> > |
> > | time_zone | SYSTEM
>
> > |
> > | timed_mutexes | OFF
>
> > |
> > | tmp_table_size | 33554432
>
> > |
> > | tmpdir | /tmp/
>
> > |
> > | transaction_alloc_block_size | 8192
>
> > |
> > | transaction_prealloc_size | 4096
>
> > |
> > | tx_isolation | REPEATABLE-READ
>
> > |
> > | updatable_views_with_limit | YES
>
> > |
> > | version | 5.0.77-log
>
> > |
> > | version_bdb | Sleepycat Software: Berkeley DB
> > 4.1.24: (January 29, 2009) |
> > | version_comment | Source distribution
>
> > |
> > | version_compile_machine | x86_64
>
> > |
> > | version_compile_os | redhat-linux-gnu
>
> > |
> > | wait_timeout | 28800
>
> > |
> >
> +---------------------------------+---------------------------
> ---------------------------------+
> > 239 rows in set (0.00 sec)
> >
> > Relevant parts of the config files:
> > -----------------------------------
> >
> > ######### BEGIN opencms.properties ##########
> > #
> > # Configuration of the driver manager
> >
> ##############################################################
> ###################
> > driver.vfs=db
> > driver.project=db
> > driver.user=db
> > driver.history=db
> >
> > #
> > # Declaration of database pools
> >
> ##############################################################
> ###################
> > db.pools=default
> >
> > #
> > # Configuration of the default database pool
> >
> ##############################################################
> ###################
> > # name of the JDBC driver
> > db.pool.default.jdbcDriver=org.gjt.mm.mysql.Driver
> >
> > # URL of the JDBC driver
> > db.pool.default.jdbcUrl=jdbc:mysql://localhost:3306/npcms
> >
> > # optional parameters for the URL of the JDBC driver
> > db.pool.default.jdbcUrl.params=?characterEncoding\=UTF-8
> >
> > # user name to connect to the database
> > db.pool.default.user=xxx
> >
> > # password to connect to the database
> > db.pool.default.password=xxx
> >
> > # the URL to make the JDBC DriverManager return connections
> from the DBCP
> > pool
> > db.pool.default.poolUrl=opencms:default
> >
> > # the maximum number of objects that can be borrowed from the pool
> > # NOTE: The value should not increase MySQL's max_connections!
> > #db.pool.default.maxActive=25
> > db.pool.default.maxActive=200
> >
> > # the maximum amount of time before throwing an exception
> when the pool is
> > exhausted
> > db.pool.default.maxWait=2000
> >
> > # the minimum number of objects that will kept connected
> > db.pool.default.minIdle=3
> >
> > # the maximum number of objects that can sit idled in the pool
> > db.pool.default.maxIdle=100
> >
> > # action to take when the pool is exhausted {grow|block|fail}
> > db.pool.default.whenExhaustedAction=grow
> >
> > # connections will be validated before they are borrowed
> from the pool
> > db.pool.default.testOnBorrow=false
> >
> > # connections will be validated by evictor thread
> > db.pool.default.testWhileIdle=true
> >
> > # number of milliseconds to sleep between runs of the evictor thread
> > # -1 means no idle connection evictor thread will be run
> > db.pool.default.timeBetweenEvictionRuns=1800000
> >
> > # number of connections tested in a run of the evictor thread
> > db.pool.default.numTestsPerEvictionRun=3
> >
> > # minimum amount of time in milliseconds a connection may
> be idle in the
> > pool before it is eligable for eviction
> > db.pool.default.minEvictableIdleTime=600000
> >
> > # the query to validate connections
> > db.pool.default.testQuery=SELECT STRUCTURE_ID FROM
> CMS_OFFLINE_STRUCTURE
> > WHERE RESOURCE_PATH = '/'
> > #db.pool.default.testQuery=
> >
> > # number of attempts to connect to the database during
> startup (default =
> > 10)
> > db.pool.default.connects=10
> >
> > # sleep time between two attempts to connect to the database during
> > startup in ms (default = 5000)
> > db.pool.default.wait=5000
> >
> > #
> > # Configuration for statement pooling
> >
> ##############################################################
> ###################
> > db.statements.default.pooling=true
> > #db.statements.default.maxActive=200
> > db.statements.default.maxActive=900
> > db.statements.default.maxWait=2000
> > db.statements.default.maxIdle=100
> > #db.statements.default.whenExhaustedAction=block
> > db.statements.default.whenExhaustedAction=grow
> >
> > #
> > # Configuration of the database driver manager
> >
> ##############################################################
> ###################
> > db.name=mysql_41
> >
> > db.vfs.driver=org.opencms.db.mysql.CmsVfsDriver
> > db.vfs.pool=opencms:default
> > db.vfs.sqlmanager=org.opencms.db.mysql.CmsSqlManager
> >
> > db.project.driver=org.opencms.db.mysql.CmsProjectDriver
> > db.project.pool=opencms:default
> > db.project.sqlmanager=org.opencms.db.mysql.CmsSqlManager
> >
> > db.user.driver=org.opencms.db.mysql.CmsUserDriver
> > db.user.pool=opencms:default
> > db.user.sqlmanager=org.opencms.db.mysql.CmsSqlManager
> >
> > db.history.driver=org.opencms.db.mysql.CmsHistoryDriver
> > db.history.pool=opencms:default
> > db.history.sqlmanager=org.opencms.db.mysql.CmsSqlManager
> >
> > db.cos.pool=opencms:default
> > ######### END opencms.properties ##########
> >
> > ######### BEGIN server.xml ##########
> > <!-- Define a non-SSL HTTP/1.1 Connector on port 8080 -->
> > <Connector port="8080" maxHttpHeaderSize="8192"
> > maxThreads="512" minSpareThreads="10"
> maxSpareThreads="100"
> > maxProcessors="512" acceptCount="400"
> > enableLookups="false" redirectPort="8443"
> > connectionTimeout="20000" disableUploadTimeout="true" />
> >
> > <!-- Define an AJP 1.3 Connector on port 8009 -->
> > <Connector port="8009"
> > maxThreads="512" minSpareThreads="10"
> maxSpareThreads="100"
> > maxProcessors="512" acceptCount="400"
> > emptySessionPath="true" protocol="AJP/1.3"
> URIEncoding="utf-8"
> > />
> > ######### END server.xml ##########
> >
> > ######### BEGIN httpd.conf ##########
> > <IfModule prefork.c>
> > StartServers 8
> > MinSpareServers 50
> > MaxSpareServers 200
> > ServerLimit 1024
> > MaxClients 512
> > MaxRequestsPerChild 4000
> > </IfModule>
> >
> > <IfModule worker.c>
> > StartServers 2
> > MaxClients 512
> > MinSpareThreads 50
> > MaxSpareThreads 200
> > ThreadsPerChild 25
> > MaxRequestsPerChild 4000
> > </IfModule>
> > ######### END httpd.conf ##########
> >
> > Thanks,
> > Paul
> >
> > > -----Original Message-----
> > > From: opencms-dev-bounces at opencms.org
> > > [mailto:opencms-dev-bounces at opencms.org] On Behalf Of
> > > Paul-Inge Flakstad
> > > Sent: 3. mai 2011 17:10
> > > To: The OpenCms mailing list
> > > Subject: Re: [opencms-dev]
> > > MySQLNonTransientConnectionException - too many connections
> > >
> > > Hi Hernan,
> > >
> > > I used all of yesterday to dig deep in the config of all
> > > Tomat, Apache, MySQL and OpenCms. Experimented for a while, it
> > > worked better (today I started seeing "Too many files open"
> > > exceptions though).
> > >
> > > After implementing the changes you suggested here, it seems
> > > everything is A LOT better - probably very much due to the
> > > key_buffer_size, which provided the major change after
> > > yesterday's experimenting.
> > >
> > > I'll just have to wait and see if things are stable now.
> > >
> > > Thank you so much for your help! :)
> > >
> > > Best regards,
> > > Paul
> > >
> > > > -----Original Message-----
> > > > From: opencms-dev-bounces at opencms.org
> > > > [mailto:opencms-dev-bounces at opencms.org] On Behalf Of
> HERNAN - TFSLA
> > > > Sent: 3. mai 2011 00:22
> > > > To: opencms-dev at opencms.org
> > > > Subject: Re: [opencms-dev]
> > > > MySQLNonTransientConnectionException - too many connections
> > > >
> > > >
> > > > If both JAVA and MYSQL are hunging at the same time, most
> > > > probably, you have
> > > > an issue with a process / coding rather than config.
> > > > Nevertheless, your
> > > > config is not a very happy one :)
> > > >
> > > > 1) First of all, you should probably enable SLOW QUERIES and
> > > > during the high
> > > > cpu usage show a process list on MYSQL (queries on execution).
> > > >
> > > > 2) if you are using MYISAM table format, adjust the
> > > > KEY_BUFFER_SIZE value to
> > > > 4gb (1/3 of the total ram). If you are using INNODB, do that for
> > > > INNODB_BUFFER_POOL_SIZE.
> > > >
> > > > 3) change your TABLE_CACHE to something like 512,
> > > > thread_cache to 32 and
> > > > change max_tmp_tables to 128mb.
> > > >
> > > > 4) change max_connections to something like 200. There is no
> > > > reason to put
> > > > it on 2000 for a small site.
> > > >
> > > > 5) change MAX_ACTIVE on the opencms.properties to 200
> (it should be
> > > > sufficient with 25 for small sites, but it depends on a lot
> > > > of factors such
> > > > as connection types, cycling, session duration, etc).
> > > >
> > > > 6) on my.cnf add the following line: --skip-name-resolve
> > > >
> > > > I'm also assuming your flexcache configuration is in place
> > > > for every major
> > > > JSP and you have an Apache cache / content expiration strategy.
> > > >
> > > > Please, change all on we continue from there. If the problem
> > > > presents itself
> > > > again, please post the SHOW PROCESS LIST and slow
> queries results.
> > > >
> > > >
> > > > Paul-Inge Flakstad wrote:
> > > > >
> > > > > Hi,
> > > > >
> > > > > Thanks for the help, I appreciate it very much!
> > > > >
> > > > > Our server admin says Java and MySQL are both at 100% CPU
> > > > when the system
> > > > > hangs.
> > > > >
> > > > > The box is a new dual-core with 16GB RAM.
> > > > >
> > > > > Here's the config (I removed some irrelevant parts):
> > > > >
> > > > >
> > > > > The connector is AJP 1.3 - defined in server.xml:
> > > > > <Connector port="8009" emptySessionPath="true"
> protocol="AJP/1.3"
> > > > > URIEncoding="utf-8" />
> > > > >
> > > > >
> > > > > opencms.properties
> > > > > ------------------
> > > > > #
> > > > > # Configuration of the driver manager
> > > > >
> > > > ##############################################################
> > > > ###################
> > > > > driver.vfs=db
> > > > > driver.project=db
> > > > > driver.user=db
> > > > > driver.history=db
> > > > >
> > > > > #
> > > > > # Declaration of database pools
> > > > >
> > > > ##############################################################
> > > > ###################
> > > > > db.pools=default
> > > > >
> > > > > #
> > > > > # Configuration of the default database pool
> > > > >
> > > > ##############################################################
> > > > ###################
> > > > > # name of the JDBC driver
> > > > > db.pool.default.jdbcDriver=org.gjt.mm.mysql.Driver
> > > > >
> > > > > # URL of the JDBC driver
> > > > > db.pool.default.jdbcUrl=jdbc:mysql://localhost:3306/npcms
> > > > >
> > > > > # optional parameters for the URL of the JDBC driver
> > > > > db.pool.default.jdbcUrl.params=?characterEncoding\=UTF-8
> > > > >
> > > > > # user name to connect to the database
> > > > > db.pool.default.user=xxxxxxxxx
> > > > >
> > > > > # password to connect to the database
> > > > > db.pool.default.password=xxxxxxxxxx
> > > > >
> > > > > # the URL to make the JDBC DriverManager return connections
> > > > from the DBCP
> > > > > pool
> > > > > db.pool.default.poolUrl=opencms:default
> > > > >
> > > > > # the maximum number of objects that can be borrowed
> from the pool
> > > > > db.pool.default.maxActive=25
> > > > >
> > > > > # the maximum amount of time before throwing an exception
> > > > when the pool is
> > > > > exhausted
> > > > > db.pool.default.maxWait=2000
> > > > >
> > > > > # the minimum number of objects that will kept connected
> > > > > db.pool.default.minIdle=3
> > > > >
> > > > > # the maximum number of objects that can sit idled in the pool
> > > > > db.pool.default.maxIdle=10
> > > > >
> > > > > # action to take when the pool is exhausted {grow|block|fail}
> > > > > db.pool.default.whenExhaustedAction=grow
> > > > >
> > > > > # connections will be validated before they are borrowed
> > > > from the pool
> > > > > db.pool.default.testOnBorrow=false
> > > > >
> > > > > # connections will be validated by evictor thread
> > > > > db.pool.default.testWhileIdle=true
> > > > >
> > > > > # number of milliseconds to sleep between runs of the
> > > evictor thread
> > > > > # -1 means no idle connection evictor thread will be run
> > > > > db.pool.default.timeBetweenEvictionRuns=3600000
> > > > >
> > > > > # number of connections tested in a run of the evictor thread
> > > > > db.pool.default.numTestsPerEvictionRun=3
> > > > >
> > > > > # minimum amount of time in milliseconds a connection may
> > > > be idle in the
> > > > > pool before it is eligable for eviction
> > > > > db.pool.default.minEvictableIdleTime=1800000
> > > > >
> > > > > # the query to validate connections
> > > > > db.pool.default.testQuery=SELECT STRUCTURE_ID FROM
> > > > CMS_OFFLINE_STRUCTURE
> > > > > WHERE RESOURCE_PATH = '/'
> > > > > #db.pool.default.testQuery=
> > > > >
> > > > > # number of attempts to connect to the database during
> > > > startup (default =
> > > > > 10)
> > > > > db.pool.default.connects=10
> > > > >
> > > > > # sleep time between two attempts to connect to the
> > > database during
> > > > > startup in ms (default = 5000)
> > > > > db.pool.default.wait=5000
> > > > >
> > > > > #
> > > > > # Configuration for statement pooling
> > > > >
> > > > ##############################################################
> > > > ###################
> > > > > db.statements.default.pooling=true
> > > > > db.statements.default.maxActive=200
> > > > > db.statements.default.maxWait=2000
> > > > > db.statements.default.maxIdle=100
> > > > > db.statements.default.whenExhaustedAction=block
> > > > >
> > > > > #
> > > > > # Configuration of the database driver manager
> > > > >
> > > > ##############################################################
> > > > ###################
> > > > > db.name=mysql_41
> > > > >
> > > > > db.vfs.driver=org.opencms.db.mysql.CmsVfsDriver
> > > > > db.vfs.pool=opencms:default
> > > > > db.vfs.sqlmanager=org.opencms.db.mysql.CmsSqlManager
> > > > >
> > > > > db.project.driver=org.opencms.db.mysql.CmsProjectDriver
> > > > > db.project.pool=opencms:default
> > > > > db.project.sqlmanager=org.opencms.db.mysql.CmsSqlManager
> > > > >
> > > > > db.user.driver=org.opencms.db.mysql.CmsUserDriver
> > > > > db.user.pool=opencms:default
> > > > > db.user.sqlmanager=org.opencms.db.mysql.CmsSqlManager
> > > > >
> > > > > db.history.driver=org.opencms.db.mysql.CmsHistoryDriver
> > > > > db.history.pool=opencms:default
> > > > > db.history.sqlmanager=org.opencms.db.mysql.CmsSqlManager
> > > > >
> > > > > db.cos.pool=opencms:default
> > > > > #
> > > > > # End of opencms.properties
> > > > >
> > > > ##############################################################
> > > > ###################
> > > > >
> > > > >
> > > > > mysql> show variables;
> > > > >
> > > > +---------------------------------+---------------------------
> > > > ---------------------------------+
> > > > > | Variable_name | Value
> > > >
> > > > > |
> > > > >
> > > > +---------------------------------+---------------------------
> > > > ---------------------------------+
> > > > > | auto_increment_increment | 1
> > > >
> > > > > |
> > > > > | auto_increment_offset | 1
> > > >
> > > > > |
> > > > > | automatic_sp_privileges | ON
> > > >
> > > > > |
> > > > > | back_log | 50
> > > >
> > > > > |
> > > > > | basedir | /usr/
> > > >
> > > > > |
> > > > > | bdb_cache_size | 8384512
> > > >
> > > > > |
> > > > > | 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
> > > >
> > > > > |
> > > > > | completion_type | 0
> > > >
> > > > > |
> > > > > | concurrent_insert | 1
> > > >
> > > > > |
> > > > > | connect_timeout | 10
> > > >
> > > > > |
> > > > > | default_week_format | 0
> > > >
> > > > > |
> > > > > | delay_key_write | ON
> > > >
> > > > > |
> > > > > | delayed_insert_limit | 100
> > > >
> > > > > |
> > > > > | delayed_insert_timeout | 300
> > > >
> > > > > |
> > > > > | delayed_queue_size | 1000
> > > >
> > > > > |
> > > > > | div_precision_increment | 4
> > > >
> > > > > |
> > > > > | keep_files_on_create | OFF
> > > >
> > > > > |
> > > > > | engine_condition_pushdown | OFF
> > > >
> > > > > |
> > > > > | expire_logs_days | 0
> > > >
> > > > > |
> > > > > | flush | OFF
> > > >
> > > > > |
> > > > > | flush_time | 0
> > > >
> > > > > |
> > > > > | ft_boolean_syntax | + -><()~*:""&|
> > > >
> > > > > |
> > > > > | ft_max_word_len | 84
> > > >
> > > > > |
> > > > > | ft_min_word_len | 4
> > > >
> > > > > |
> > > > > | 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_dynamic_loading | YES
> > > >
> > > > > |
> > > > > | have_example_engine | NO
> > > >
> > > > > |
> > > > > | have_federated_engine | NO
> > > >
> > > > > |
> > > > > | have_geometry | YES
> > > >
> > > > > |
> > > > > | have_innodb | YES
> > > >
> > > > > |
> > > > > | have_isam | NO
> > > >
> > > > > |
> > > > > | have_merge_engine | YES
> > > >
> > > > > |
> > > > > | have_ndbcluster | NO
> > > >
> > > > > |
> > > > > | have_openssl | DISABLED
> > > >
> > > > > |
> > > > > | have_ssl | DISABLED
> > > >
> > > > > |
> > > > > | 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_checksums | ON
> > > >
> > > > > |
> > > > > | innodb_commit_concurrency | 0
> > > >
> > > > > |
> > > > > | innodb_concurrency_tickets | 500
> > > >
> > > > > |
> > > > > | innodb_data_file_path | ibdata1:10M:autoextend
> > > >
> > > > > |
> > > > > | innodb_data_home_dir |
> > > >
> > > > > |
> > > > > | innodb_adaptive_hash_index | ON
> > > >
> > > > > |
> > > > > | innodb_doublewrite | ON
> > > >
> > > > > |
> > > > > | innodb_fast_shutdown | 1
> > > >
> > > > > |
> > > > > | 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_rollback_on_timeout | OFF
> > > >
> > > > > |
> > > > > | innodb_support_xa | ON
> > > >
> > > > > |
> > > > > | innodb_sync_spin_loops | 20
> > > >
> > > > > |
> > > > > | innodb_table_locks | ON
> > > >
> > > > > |
> > > > > | innodb_thread_concurrency | 8
> > > >
> > > > > |
> > > > > | innodb_thread_sleep_delay | 10000
> > > >
> > > > > |
> > > > > | interactive_timeout | 28800
> > > >
> > > > > |
> > > > > | join_buffer_size | 131072
> > > >
> > > > > |
> > > > > | key_buffer_size | 8384512
> > > >
> > > > > |
> > > > > | key_cache_age_threshold | 300
> > > >
> > > > > |
> > > > > | key_cache_block_size | 1024
> > > >
> > > > > |
> > > > > | key_cache_division_limit | 100
> > > >
> > > > > |
> > > > > | large_files_support | ON
> > > >
> > > > > |
> > > > > | large_page_size | 0
> > > >
> > > > > |
> > > > > | large_pages | OFF
> > > >
> > > > > |
> > > > > | local_infile | ON
> > > >
> > > > > |
> > > > > | locked_in_memory | OFF
> > > >
> > > > > |
> > > > > | log | OFF
> > > >
> > > > > |
> > > > > | log_bin | OFF
> > > >
> > > > > |
> > > > > | log_bin_trust_function_creators | OFF
> > > >
> > > > > |
> > > > > | log_error |
> > > >
> > > > > |
> > > > > | log_queries_not_using_indexes | OFF
> > > >
> > > > > |
> > > > > | log_slave_updates | OFF
> > > >
> > > > > |
> > > > > | log_slow_queries | 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 | 67108864
> > > >
> > > > > |
> > > > > | max_binlog_cache_size | 18446744073709547520
> > > >
> > > > > |
> > > > > | max_binlog_size | 1073741824
> > > >
> > > > > |
> > > > > | max_connect_errors | 10
> > > >
> > > > > |
> > > > > | max_connections | 2048
> > > >
> > > > > |
> > > > > | 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_prepared_stmt_count | 16382
> > > >
> > > > > |
> > > > > | max_relay_log_size | 0
> > > >
> > > > > |
> > > > > | max_seeks_for_key | 18446744073709551615
> > > >
> > > > > |
> > > > > | max_sort_length | 1024
> > > >
> > > > > |
> > > > > | max_sp_recursion_depth | 0
> > > >
> > > > > |
> > > > > | max_tmp_tables | 32
> > > >
> > > > > |
> > > > > | max_user_connections | 0
> > > >
> > > > > |
> > > > > | max_write_lock_count | 18446744073709551615
> > > >
> > > > > |
> > > > > | multi_range_count | 256
> > > >
> > > > > |
> > > > > | myisam_data_pointer_size | 6
> > > >
> > > > > |
> > > > > | myisam_max_sort_file_size | 9223372036853727232
> > > >
> > > > > |
> > > > > | myisam_recover_options | OFF
> > > >
> > > > > |
> > > > > | myisam_repair_threads | 1
> > > >
> > > > > |
> > > > > | myisam_sort_buffer_size | 8388608
> > > >
> > > > > |
> > > > > | myisam_stats_method | nulls_unequal
> > > >
> > > > > |
> > > > > | net_buffer_length | 16384
> > > >
> > > > > |
> > > > > | net_read_timeout | 30
> > > >
> > > > > |
> > > > > | net_retry_count | 10
> > > >
> > > > > |
> > > > > | net_write_timeout | 60
> > > >
> > > > > |
> > > > > | new | OFF
> > > >
> > > > > |
> > > > > | old_passwords | ON
> > > >
> > > > > |
> > > > > | open_files_limit | 10240
> > > >
> > > > > |
> > > > > | optimizer_prune_level | 1
> > > >
> > > > > |
> > > > > | optimizer_search_depth | 62
> > > >
> > > > > |
> > > > > | pid_file |
> > > > /var/run/mysqld/mysqld.pid
> > > > > |
> > > > > | plugin_dir |
> > > >
> > > > > |
> > > > > | port | 3306
> > > >
> > > > > |
> > > > > | preload_buffer_size | 32768
> > > >
> > > > > |
> > > > > | profiling | OFF
> > > >
> > > > > |
> > > > > | profiling_history_size | 15
> > > >
> > > > > |
> > > > > | protocol_version | 10
> > > >
> > > > > |
> > > > > | query_alloc_block_size | 8192
> > > >
> > > > > |
> > > > > | query_cache_limit | 1048576
> > > >
> > > > > |
> > > > > | query_cache_min_res_unit | 4096
> > > >
> > > > > |
> > > > > | query_cache_size | 0
> > > >
> > > > > |
> > > > > | query_cache_type | ON
> > > >
> > > > > |
> > > > > | query_cache_wlock_invalidate | OFF
> > > >
> > > > > |
> > > > > | query_prealloc_size | 8192
> > > >
> > > > > |
> > > > > | range_alloc_block_size | 4096
> > > >
> > > > > |
> > > > > | read_buffer_size | 131072
> > > >
> > > > > |
> > > > > | read_only | OFF
> > > >
> > > > > |
> > > > > | read_rnd_buffer_size | 262144
> > > >
> > > > > |
> > > > > | relay_log |
> > > >
> > > > > |
> > > > > | relay_log_index |
> > > >
> > > > > |
> > > > > | relay_log_info_file | relay-log.info
> > > >
> > > > > |
> > > > > | relay_log_purge | ON
> > > >
> > > > > |
> > > > > | relay_log_space_limit | 0
> > > >
> > > > > |
> > > > > | rpl_recovery_rank | 0
> > > >
> > > > > |
> > > > > | secure_auth | OFF
> > > >
> > > > > |
> > > > > | secure_file_priv |
> > > >
> > > > > |
> > > > > | server_id | 0
> > > >
> > > > > |
> > > > > | skip_external_locking | ON
> > > >
> > > > > |
> > > > > | skip_networking | OFF
> > > >
> > > > > |
> > > > > | skip_show_database | OFF
> > > >
> > > > > |
> > > > > | slave_compressed_protocol | OFF
> > > >
> > > > > |
> > > > > | slave_load_tmpdir | /tmp/
> > > >
> > > > > |
> > > > > | slave_net_timeout | 3600
> > > >
> > > > > |
> > > > > | slave_skip_errors | OFF
> > > >
> > > > > |
> > > > > | slave_transaction_retries | 10
> > > >
> > > > > |
> > > > > | slow_launch_time | 2
> > > >
> > > > > |
> > > > > | socket |
> > > > /var/lib/mysql/mysql.sock
> > > > > |
> > > > > | sort_buffer_size | 2097144
> > > >
> > > > > |
> > > > > | sql_big_selects | ON
> > > >
> > > > > |
> > > > > | sql_mode |
> > > >
> > > > > |
> > > > > | sql_notes | ON
> > > >
> > > > > |
> > > > > | sql_warnings | OFF
> > > >
> > > > > |
> > > > > | ssl_ca |
> > > >
> > > > > |
> > > > > | ssl_capath |
> > > >
> > > > > |
> > > > > | ssl_cert |
> > > >
> > > > > |
> > > > > | ssl_cipher |
> > > >
> > > > > |
> > > > > | ssl_key |
> > > >
> > > > > |
> > > > > | storage_engine | MyISAM
> > > >
> > > > > |
> > > > > | sync_binlog | 0
> > > >
> > > > > |
> > > > > | sync_frm | ON
> > > >
> > > > > |
> > > > > | table_cache | 64
> > > >
> > > > > |
> > > > > | table_lock_wait_timeout | 50
> > > >
> > > > > |
> > > > > | table_type | MyISAM
> > > >
> > > > > |
> > > > > | thread_cache_size | 0
> > > >
> > > > > |
> > > > > | thread_stack | 262144
> > > >
> > > > > |
> > > > > | timed_mutexes | OFF
> > > >
> > > > > |
> > > > > | tmp_table_size | 33554432
> > > >
> > > > > |
> > > > > | transaction_alloc_block_size | 8192
> > > >
> > > > > |
> > > > > | transaction_prealloc_size | 4096
> > > >
> > > > > |
> > > > > | tx_isolation | REPEATABLE-READ
> > > >
> > > > > |
> > > > > | updatable_views_with_limit | YES
> > > >
> > > > > |
> > > > > | wait_timeout | 28800
> > > >
> > > > > |
> > > > >
> > > > +---------------------------------+---------------------------
> > > > ---------------------------------+
> > > > >
> > > > >
> > > > > mysql> show status;
> > > > > +-----------------------------------+-----------+
> > > > > | Variable_name | Value |
> > > > > +-----------------------------------+-----------+
> > > > > | Aborted_clients | 34 |
> > > > > | Aborted_connects | 1 |
> > > > > | Binlog_cache_disk_use | 0 |
> > > > > | Binlog_cache_use | 0 |
> > > > > | Bytes_received | 128 |
> > > > > | Bytes_sent | 162 |
> > > > > | Com_admin_commands | 0 |
> > > > > | Com_alter_db | 0 |
> > > > > | Com_alter_table | 0 |
> > > > > | Com_analyze | 0 |
> > > > > | Com_backup_table | 0 |
> > > > > | Com_begin | 0 |
> > > > > | Com_call_procedure | 0 |
> > > > > | Com_change_db | 0 |
> > > > > | 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 | 0 |
> > > > > | Com_create_user | 0 |
> > > > > | Com_dealloc_sql | 0 |
> > > > > | Com_delete | 0 |
> > > > > | 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 | 0 |
> > > > > | Com_insert_select | 0 |
> > > > > | Com_kill | 0 |
> > > > > | Com_load | 0 |
> > > > > | Com_load_master_data | 0 |
> > > > > | Com_load_master_table | 0 |
> > > > > | Com_lock_tables | 0 |
> > > > > | Com_optimize | 0 |
> > > > > | 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 | 0 |
> > > > > | 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 | 1 |
> > > > > | Com_set_option | 0 |
> > > > > | Com_show_binlog_events | 0 |
> > > > > | Com_show_binlogs | 0 |
> > > > > | Com_show_charsets | 0 |
> > > > > | Com_show_collations | 0 |
> > > > > | Com_show_column_types | 0 |
> > > > > | Com_show_create_db | 0 |
> > > > > | Com_show_create_table | 0 |
> > > > > | Com_show_databases | 0 |
> > > > > | Com_show_errors | 0 |
> > > > > | Com_show_fields | 0 |
> > > > > | Com_show_grants | 0 |
> > > > > | Com_show_innodb_status | 0 |
> > > > > | Com_show_keys | 0 |
> > > > > | Com_show_logs | 0 |
> > > > > | Com_show_master_status | 0 |
> > > > > | Com_show_ndb_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 | 1 |
> > > > > | Com_show_storage_engines | 0 |
> > > > > | Com_show_tables | 0 |
> > > > > | Com_show_triggers | 0 |
> > > > > | Com_show_variables | 0 |
> > > > > | Com_show_warnings | 0 |
> > > > > | Com_slave_start | 0 |
> > > > > | Com_slave_stop | 0 |
> > > > > | Com_stmt_close | 0 |
> > > > > | Com_stmt_execute | 0 |
> > > > > | Com_stmt_fetch | 0 |
> > > > > | Com_stmt_prepare | 0 |
> > > > > | Com_stmt_reset | 0 |
> > > > > | Com_stmt_send_long_data | 0 |
> > > > > | Com_truncate | 0 |
> > > > > | Com_unlock_tables | 0 |
> > > > > | Com_update | 0 |
> > > > > | Com_update_multi | 0 |
> > > > > | Com_xa_commit | 0 |
> > > > > | Com_xa_end | 0 |
> > > > > | Com_xa_prepare | 0 |
> > > > > | Com_xa_recover | 0 |
> > > > > | Com_xa_rollback | 0 |
> > > > > | Com_xa_start | 0 |
> > > > > | Compression | OFF |
> > > > > | Connections | 942289 |
> > > > > | Created_tmp_disk_tables | 0 |
> > > > > | Created_tmp_files | 93 |
> > > > > | Created_tmp_tables | 1 |
> > > > > | Delayed_errors | 0 |
> > > > > | Delayed_insert_threads | 0 |
> > > > > | Delayed_writes | 0 |
> > > > > | Flush_commands | 1 |
> > > > > | Handler_commit | 0 |
> > > > > | Handler_delete | 0 |
> > > > > | Handler_discover | 0 |
> > > > > | Handler_prepare | 0 |
> > > > > | Handler_read_first | 0 |
> > > > > | Handler_read_key | 0 |
> > > > > | Handler_read_next | 0 |
> > > > > | Handler_read_prev | 0 |
> > > > > | Handler_read_rnd | 0 |
> > > > > | Handler_read_rnd_next | 0 |
> > > > > | Handler_rollback | 0 |
> > > > > | Handler_savepoint | 0 |
> > > > > | Handler_savepoint_rollback | 0 |
> > > > > | Handler_update | 0 |
> > > > > | Handler_write | 132 |
> > > > > | Innodb_buffer_pool_pages_data | 25 |
> > > > > | Innodb_buffer_pool_pages_dirty | 0 |
> > > > > | Innodb_buffer_pool_pages_flushed | 1 |
> > > > > | Innodb_buffer_pool_pages_free | 487 |
> > > > > | Innodb_buffer_pool_pages_misc | 0 |
> > > > > | Innodb_buffer_pool_pages_total | 512 |
> > > > > | Innodb_buffer_pool_read_ahead_rnd | 1 |
> > > > > | Innodb_buffer_pool_read_ahead_seq | 0 |
> > > > > | Innodb_buffer_pool_read_requests | 560 |
> > > > > | Innodb_buffer_pool_reads | 18 |
> > > > > | Innodb_buffer_pool_wait_free | 0 |
> > > > > | Innodb_buffer_pool_write_requests | 1 |
> > > > > | Innodb_data_fsyncs | 7 |
> > > > > | Innodb_data_pending_fsyncs | 0 |
> > > > > | Innodb_data_pending_reads | 0 |
> > > > > | Innodb_data_pending_writes | 0 |
> > > > > | Innodb_data_read | 2592768 |
> > > > > | Innodb_data_reads | 31 |
> > > > > | Innodb_data_writes | 7 |
> > > > > | Innodb_data_written | 35328 |
> > > > > | Innodb_dblwr_pages_written | 1 |
> > > > > | Innodb_dblwr_writes | 1 |
> > > > > | Innodb_log_waits | 0 |
> > > > > | Innodb_log_write_requests | 0 |
> > > > > | Innodb_log_writes | 2 |
> > > > > | Innodb_os_log_fsyncs | 5 |
> > > > > | Innodb_os_log_pending_fsyncs | 0 |
> > > > > | Innodb_os_log_pending_writes | 0 |
> > > > > | Innodb_os_log_written | 1024 |
> > > > > | Innodb_page_size | 16384 |
> > > > > | Innodb_pages_created | 0 |
> > > > > | Innodb_pages_read | 25 |
> > > > > | Innodb_pages_written | 1 |
> > > > > | Innodb_row_lock_current_waits | 0 |
> > > > > | Innodb_row_lock_time | 0 |
> > > > > | Innodb_row_lock_time_avg | 0 |
> > > > > | Innodb_row_lock_time_max | 0 |
> > > > > | Innodb_row_lock_waits | 0 |
> > > > > | Innodb_rows_deleted | 0 |
> > > > > | Innodb_rows_inserted | 0 |
> > > > > | Innodb_rows_read | 25 |
> > > > > | Innodb_rows_updated | 0 |
> > > > > | Key_blocks_not_flushed | 0 |
> > > > > | Key_blocks_unused | 4158 |
> > > > > | Key_blocks_used | 6694 |
> > > > > | Key_read_requests | 696459654 |
> > > > > | Key_reads | 1824563 |
> > > > > | Key_write_requests | 4009303 |
> > > > > | Key_writes | 118979 |
> > > > > | Last_query_cost | 0.000000 |
> > > > > | Max_used_connections | 166 |
> > > > > | Not_flushed_delayed_rows | 0 |
> > > > > | Open_files | 69 |
> > > > > | Open_streams | 0 |
> > > > > | Open_tables | 64 |
> > > > > | Opened_tables | 0 |
> > > > > | Prepared_stmt_count | 0 |
> > > > > | Qcache_free_blocks | 0 |
> > > > > | Qcache_free_memory | 0 |
> > > > > | Qcache_hits | 0 |
> > > > > | Qcache_inserts | 0 |
> > > > > | Qcache_lowmem_prunes | 0 |
> > > > > | Qcache_not_cached | 0 |
> > > > > | Qcache_queries_in_cache | 0 |
> > > > > | Qcache_total_blocks | 0 |
> > > > > | Queries | 24309937 |
> > > > > | Questions | 2 |
> > > > > | Rpl_status | NULL |
> > > > > | Select_full_join | 0 |
> > > > > | Select_full_range_join | 0 |
> > > > > | Select_range | 0 |
> > > > > | Select_range_check | 0 |
> > > > > | Select_scan | 1 |
> > > > > | Slave_open_temp_tables | 0 |
> > > > > | Slave_retried_transactions | 0 |
> > > > > | Slave_running | OFF |
> > > > > | Slow_launch_threads | 0 |
> > > > > | Slow_queries | 0 |
> > > > > | Sort_merge_passes | 0 |
> > > > > | Sort_range | 0 |
> > > > > | Sort_rows | 0 |
> > > > > | Sort_scan | 0 |
> > > > > | 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 | 33647849 |
> > > > > | Table_locks_waited | 1979 |
> > > > > | Tc_log_max_pages_used | 0 |
> > > > > | Tc_log_page_size | 0 |
> > > > > | Tc_log_page_waits | 0 |
> > > > > | Threads_cached | 0 |
> > > > > | Threads_connected | 85 |
> > > > > | Threads_created | 942288 |
> > > > > | Threads_running | 2 |
> > > > > | Uptime | 16392 |
> > > > > | Uptime_since_flush_status | 24309937 |
> > > > > +-----------------------------------+-----------+
> > > > >
> > > > >
> > > > > Best regards,
> > > > > Paul
> > > > >
> > > > >> -----Original Message-----
> > > > >> From: opencms-dev-bounces at opencms.org
> > > > >> [mailto:opencms-dev-bounces at opencms.org] On Behalf Of
> > > > HERNAN - TFSLA
> > > > >> Sent: 2. mai 2011 14:19
> > > > >> To: opencms-dev at opencms.org
> > > > >> Subject: Re: [opencms-dev]
> > > > >> MySQLNonTransientConnectionException - too many connections
> > > > >>
> > > > >>
> > > > >> Please post your:
> > > > >> * opencms.properties
> > > > >> * mysql variables status (show status;)
> > > > >> * j/connector version
> > > > >>
> > > > >> Most likely you have your opencms.properties 'default' and is
> > > > >> not getting
> > > > >> along with some mysql configuration such as wait_timeout.
> > > > >>
> > > > >> Regards
> > > > >> Hernán.
> > > > >>
> > > > >>
> > > > >> Paul-Inge Flakstad wrote:
> > > > >> >
> > > > >> > Hi guys,
> > > > >> >
> > > > >> > We recently launched our primary website on OpenCms (yay!).
> > > > >> It is curretly
> > > > >> > at ~3000 pageviews a day. Not _that_ much traffic, but
> > > > >> every so often (way
> > > > >> > too often), it "hangs" - often for as long as a
> minute or more.
> > > > >> >
> > > > >> > This is what happens:
> > > > >> >
> > > > >> >
> > > >
> com.mysql.jdbc.exceptions.MySQLNonTransientConnectionException: Data
> > > > >> > source rejected establishment of connection, message from
> > > > >> server: "Too
> > > > >> > many connections"
> > > > >> > at
> > > > >> com.mysql.jdbc.SQLError.createSQLException(SQLError.java:921)
> > > > >> > at
> > > com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1070)
> > > > >> > at
> > > > >> com.mysql.jdbc.Connection.createNewIO(Connection.java:2748)
> > > > >> > at
> > > com.mysql.jdbc.Connection.<init>(Connection.java:1553)
> > > > >> > at
> > > > >> >
> > > > >>
> com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriv
> > > > >> er.java:285)
> > > > >> > at
> > > > >> java.sql.DriverManager.getConnection(DriverManager.java:582)
> > > > >> > at
> > > > >> java.sql.DriverManager.getConnection(DriverManager.java:185)
> > > > >> > at
> > > > >> >
> > > > >>
> org.apache.commons.dbcp.DriverManagerConnectionFactory.createC
> > > > >> onnection(DriverManagerConnectionFactory.java:65)
> > > > >> > at
> > > > >> >
> > > > >>
> org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(P
> > > > >> oolableConnectionFactory.java:294)
> > > > >> > at
> > > > >> >
> > > > >>
> org.apache.commons.pool.impl.GenericObjectPool.borrowObject(Ge
> > > > >> nericObjectPool.java:1148)
> > > > >> > at
> > > > >> >
> > > > >>
> > > >
> > >
> org.apache.commons.dbcp.PoolingDriver.connect(PoolingDriver.java:176)
> > > > >> > at
> > > > >> java.sql.DriverManager.getConnection(DriverManager.java:582)
> > > > >> > at
> > > > >> java.sql.DriverManager.getConnection(DriverManager.java:207)
> > > > >> > at
> > > > >> >
> > > > >>
> org.opencms.db.CmsSqlManager.getConnectionByUrl(CmsSqlManager.
> > > > >> java:104)
> > > > >> > at
> > > > >> >
> > > > >>
> org.opencms.db.generic.CmsSqlManager.getConnection(CmsSqlManag
> > > > >> er.java:231)
> > > > >> > at
> > > > >> >
> > > > >>
> org.opencms.db.generic.CmsVfsDriver.readResource(CmsVfsDriver.
> > > > >> java:1931)
> > > > >> > ... 75 more
> > > > >> >
> > > > >> > The exception was not present in the several months of
> > > > >> development and
> > > > >> > beta testing, so it's no doubt the traffic that's causing
> > > > >> it. I've never
> > > > >> > seen this before, but then again, I've been working mostly
> > > > >> on smaller
> > > > >> > sites with much less traffic.
> > > > >> >
> > > > >> > After learning of the setting in MySQL, I have
> (just now) set
> > > > >> > max_connections to 2048. No max_connections was present in
> > > > >> my.cnf from
> > > > >> > before, so I'm guessing it was 100 (the default value).
> > > > >> >
> > > > >> > Will this fix things? Should I do anything else, in order
> > > > >> to allow many
> > > > >> > concurrent users / avoid this exception?
> > > > >> >
> > > > >> > Best regards,
> > > > >> > Paul
> > > > >> >
> > > > >> > _______________________________________________
> > > > >> > This mail is sent to you from the opencms-dev mailing list
> > > > >> > To change your list options, or to unsubscribe from the
> > > > >> list, please visit
> > > > >> > http://lists.opencms.org/mailman/listinfo/opencms-dev
> > > > >> >
> > > > >> >
> > > > >>
> > > > >> --
> > > > >> View this message in context:
> > > > >>
> http://old.nabble.com/MySQLNonTransientConnectionException---t
> > > > > oo-many-connections-tp31521630p31523002.html
> > > > >> Sent from the OpenCMS - Dev mailing list archive at
> Nabble.com.
> > > > >>
> > > > >>
> > > > >> _______________________________________________
> > > > >> This mail is sent to you from the opencms-dev mailing list
> > > > >> To change your list options, or to unsubscribe from the list,
> > > > >> please visit
> > > > >> http://lists.opencms.org/mailman/listinfo/opencms-dev
> > > > >
> > > > > _______________________________________________
> > > > > This mail is sent to you from the opencms-dev mailing list
> > > > > To change your list options, or to unsubscribe from the
> > > > list, please visit
> > > > > http://lists.opencms.org/mailman/listinfo/opencms-dev
> > > > >
> > > > >
> > > >
> > > > --
> > > > View this message in context:
> > > > http://old.nabble.com/MySQLNonTransientConnectionException---t
> > > oo-many-connections-tp31521630p31527995.html
> > > > Sent from the OpenCMS - Dev mailing list archive at Nabble.com.
> > > >
> > > >
> > > > _______________________________________________
> > > > This mail is sent to you from the opencms-dev mailing list
> > > > To change your list options, or to unsubscribe from the list,
> > > > please visit
> > > > http://lists.opencms.org/mailman/listinfo/opencms-dev
> > >
> > > _______________________________________________
> > > This mail is sent to you from the opencms-dev mailing list
> > > To change your list options, or to unsubscribe from the list,
> > > please visit
> > > http://lists.opencms.org/mailman/listinfo/opencms-dev
> > >
> >
> > _______________________________________________
> > This mail is sent to you from the opencms-dev mailing list
> > To change your list options, or to unsubscribe from the
> list, please visit
> > http://lists.opencms.org/mailman/listinfo/opencms-dev
>
> _______________________________________________
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> To change your list options, or to unsubscribe from the list,
> please visit
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