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[(12:55 AM)][(root@alpha)] [(~)] $ ./tuning-primer.sh -- MYSQL PERFORMANCE TUNING PRIMER -- - By: Matthew Montgomery - MySQL Version 5.5.16-log i686 Uptime = 2 days 5 hrs 46 min 29 sec Avg. qps = 110 Total Questions = 21323117 Threads Connected = 9 Server has been running for over 48hrs. It should be safe to follow these recommendations To find out more information on how each of these runtime variables effects performance visit: http://dev.mysql.com/doc/refman/5.5/en/server-system-variables.html Visit http://www.mysql.com/products/enterprise/advisors.html for info about MySQL's Enterprise Monitoring and Advisory Service SLOW QUERIES The slow query log is enabled. Current long_query_time = 2.000000 sec. You have 1274059 out of 21323174 that take longer than 2.000000 sec. to complete Your long_query_time seems to be fine BINARY UPDATE LOG The binary update log is enabled The expire_logs_days is not set. The mysqld will retain the entire binary log until RESET MASTER or PURGE MASTER LOGS commands are run manually Setting expire_logs_days will allow you to remove old binary logs automatically See http://dev.mysql.com/doc/refman/5.5/en/purge-master-logs.html Binlog sync is not enabled, you could loose binlog records during a server crash WORKER THREADS Current thread_cache_size = 8 Current threads_cached = 6 Current threads_per_sec = 0 Historic threads_per_sec = 0 Your thread_cache_size is fine MAX CONNECTIONS Current max_connections = 100 Current threads_connected = 8 Historic max_used_connections = 101 The number of used connections is 101% of the configured maximum. You should raise max_connections INNODB STATUS Current InnoDB index space = 818 M Current InnoDB data space = 7.77 G Current InnoDB buffer pool free = 0 % Current innodb_buffer_pool_size = 2.00 G Depending on how much space your innodb indexes take up it may be safe to increase this value to up to 2 / 3 of total system memory MEMORY USAGE Max Memory Ever Allocated : 5.58 G Configured Max Per-thread Buffers : 3.43 G Configured Max Global Buffers : 2.11 G Configured Max Memory Limit : 5.55 G Physical Memory : 7.92 G Max memory limit seem to be within acceptable norms KEY BUFFER Current MyISAM index space = 145 K Current key_buffer_size = 32 M Key cache miss rate is 1 : 3088 Key buffer free ratio = 88 % Your key_buffer_size seems to be fine QUERY CACHE Query cache is enabled Current query_cache_size = 64 M Current query_cache_used = 32 M Current query_cache_limit = 2 M Current Query cache Memory fill ratio = 50.05 % Current query_cache_min_res_unit = 4 K MySQL won't cache query results that are larger than query_cache_limit in size SORT OPERATIONS Current sort_buffer_size = 8 M Current read_rnd_buffer_size = 16 M Sort buffer seems to be fine JOINS Current join_buffer_size = 8.00 M You have had 555632 queries where a join could not use an index properly join_buffer_size >= 4 M This is not advised You should enable "log-queries-not-using-indexes" Then look for non indexed joins in the slow query log. OPEN FILES LIMIT Current open_files_limit = 8192 files The open_files_limit should typically be set to at least 2x-3x that of table_cache if you have heavy MyISAM usage. Your open_files_limit value seems to be fine TABLE CACHE Current table_open_cache = 2048 tables Current table_definition_cache = 400 tables You have a total of 766 tables You have 1000 open tables. The table_cache value seems to be fine You should probably increase your table_definition_cache value. TEMP TABLES Current max_heap_table_size = 64 M Current tmp_table_size = 64 M Of 82448 temp tables, 17% were created on disk Created disk tmp tables ratio seems fine TABLE SCANS Current read_buffer_size = 2 M Current table scan ratio = 475 : 1 read_buffer_size seems to be fine TABLE LOCKING Current Lock Wait ratio = 0 : 21327607 Your table locking seems to be fine [(12:55 AM)][(root@alpha)] [(~)] $
#BEGIN CONFIG INFO #DESCR: 4GB RAM, InnoDB only, ACID, few connections, heavy queries #TYPE: SYSTEM #END CONFIG INFO # # This is a MySQL example config file for systems with 4GB of memory # running mostly MySQL using InnoDB only tables and performing complex # queries with few connections. # # MySQL programs look for option files in a set of # locations which depend on the deployment platform. # You can copy this option file to one of those # locations. For information about these locations, see: # http://dev.mysql.com/doc/mysql/en/option-files.html # # In this file, you can use all long options that a program supports. # If you want to know which options a program supports, run the program # with the "--help" option. # # More detailed information about the individual options can also be # found in the manual. # # # The following options will be read by MySQL client applications. # Note that only client applications shipped by MySQL are guaranteed # to read this section. If you want your own MySQL client program to # honor these values, you need to specify it as an option during the # MySQL client library initialization. # [client] #password = [your_password] port = 3306 socket = /home/virtual/FILESYSTEMTEMPLATE/.mysqlsock/mysql.sock # *** Application-specific options follow here *** # # The MySQL server # [mysqld] # generic configuration options port = 3306 socket = /home/virtual/FILESYSTEMTEMPLATE/.mysqlsock/mysql.sock # back_log is the number of connections the operating system can keep in # the listen queue, before the MySQL connection manager thread has # processed them. If you have a very high connection rate and experience # "connection refused" errors, you might need to increase this value. # Check your OS documentation for the maximum value of this parameter. # Attempting to set back_log higher than your operating system limit # will have no effect. back_log = 50 # Don't listen on a TCP/IP port at all. This can be a security # enhancement, if all processes that need to connect to mysqld run # on the same host. All interaction with mysqld must be made via Unix # sockets or named pipes. # Note that using this option without enabling named pipes on Windows # (via the "enable-named-pipe" option) will render mysqld useless! #skip-networking # The maximum amount of concurrent sessions the MySQL server will # allow. One of these connections will be reserved for a user with # SUPER privileges to allow the administrator to login even if the # connection limit has been reached. max_connections = 100 # Maximum amount of errors allowed per host. If this limit is reached, # the host will be blocked from connecting to the MySQL server until # "FLUSH HOSTS" has been run or the server was restarted. Invalid # passwords and other errors during the connect phase result in # increasing this value. See the "Aborted_connects" status variable for # global counter. max_connect_errors = 10 # The number of open tables for all threads. Increasing this value # increases the number of file descriptors that mysqld requires. # Therefore you have to make sure to set the amount of open files # allowed to at least 4096 in the variable "open-files-limit" in # section [mysqld_safe] table_open_cache = 2048 # Enable external file level locking. Enabled file locking will have a # negative impact on performance, so only use it in case you have # multiple database instances running on the same files (note some # restrictions still apply!) or if you use other software relying on # locking MyISAM tables on file level. #external-locking # The maximum size of a query packet the server can handle as well as # maximum query size server can process (Important when working with # large BLOBs). enlarged dynamically, for each connection. max_allowed_packet = 16M # The size of the cache to hold the SQL statements for the binary log # during a transaction. If you often use big, multi-statement # transactions you can increase this value to get more performance. All # statements from transactions are buffered in the binary log cache and # are being written to the binary log at once after the COMMIT. If the # transaction is larger than this value, temporary file on disk is used # instead. This buffer is allocated per connection on first update # statement in transaction binlog_cache_size = 1M # Maximum allowed size for a single HEAP (in memory) table. This option # is a protection against the accidential creation of a very large HEAP # table which could otherwise use up all memory resources. max_heap_table_size = 64M # Size of the buffer used for doing full table scans. # Allocated per thread, if a full scan is needed. read_buffer_size = 2M # When reading rows in sorted order after a sort, the rows are read # through this buffer to avoid disk seeks. You can improve ORDER BY # performance a lot, if set this to a high value. # Allocated per thread, when needed. read_rnd_buffer_size = 16M # Sort buffer is used to perform sorts for some ORDER BY and GROUP BY # queries. If sorted data does not fit into the sort buffer, a disk # based merge sort is used instead - See the "Sort_merge_passes" # status variable. Allocated per thread if sort is needed. sort_buffer_size = 8M # This buffer is used for the optimization of full JOINs (JOINs without # indexes). Such JOINs are very bad for performance in most cases # anyway, but setting this variable to a large value reduces the # performance impact. See the "Select_full_join" status variable for a # count of full JOINs. Allocated per thread if full join is found join_buffer_size = 8M # How many threads we should keep in a cache for reuse. When a client # disconnects, the client's threads are put in the cache if there aren't # more than thread_cache_size threads from before. This greatly reduces # the amount of thread creations needed if you have a lot of new # connections. (Normally this doesn't give a notable performance # improvement if you have a good thread implementation.) thread_cache_size = 8 # This permits the application to give the threads system a hint for the # desired number of threads that should be run at the same time. This # value only makes sense on systems that support the thread_concurrency() # function call (Sun Solaris, for example). # You should try [number of CPUs]*(2..4) for thread_concurrency thread_concurrency = 8 # Query cache is used to cache SELECT results and later return them # without actual executing the same query once again. Having the query # cache enabled may result in significant speed improvements, if your # have a lot of identical queries and rarely changing tables. See the # "Qcache_lowmem_prunes" status variable to check if the current value # is high enough for your load. # Note: In case your tables change very often or if your queries are # textually different every time, the query cache may result in a # slowdown instead of a performance improvement. query_cache_size = 64M # Only cache result sets that are smaller than this limit. This is to # protect the query cache of a very large result set overwriting all # other query results. query_cache_limit = 2M # Minimum word length to be indexed by the full text search index. # You might wish to decrease it if you need to search for shorter words. # Note that you need to rebuild your FULLTEXT index, after you have # modified this value. ft_min_word_len = 4 # If your system supports the memlock() function call, you might want to # enable this option while running MySQL to keep it locked in memory and # to avoid potential swapping out in case of high memory pressure. Good # for performance. #memlock # Table type which is used by default when creating new tables, if not # specified differently during the CREATE TABLE statement. default-storage-engine = innodb # Thread stack size to use. This amount of memory is always reserved at # connection time. MySQL itself usually needs no more than 64K of # memory, while if you use your own stack hungry UDF functions or your # OS requires more stack for some operations, you might need to set this # to a higher value. thread_stack = 192K # Set the default transaction isolation level. Levels available are: # READ-UNCOMMITTED, READ-COMMITTED, REPEATABLE-READ, SERIALIZABLE transaction_isolation = REPEATABLE-READ # Maximum size for internal (in-memory) temporary tables. If a table # grows larger than this value, it is automatically converted to disk # based table This limitation is for a single table. There can be many # of them. tmp_table_size = 64M # Enable binary logging. This is required for acting as a MASTER in a # replication configuration. You also need the binary log if you need # the ability to do point in time recovery from your latest backup. log-bin=mysql-bin # binary logging format - mixed recommended binlog_format=mixed # If you're using replication with chained slaves (A->B->C), you need to # enable this option on server B. It enables logging of updates done by # the slave thread into the slave's binary log. #log_slave_updates # Enable the full query log. Every query (even ones with incorrect # syntax) that the server receives will be logged. This is useful for # debugging, it is usually disabled in production use. #log # Print warnings to the error log file. If you have any problem with # MySQL you should enable logging of warnings and examine the error log # for possible explanations. #log_warnings # Log slow queries. Slow queries are queries which take more than the # amount of time defined in "long_query_time" or which do not use # indexes well, if log_short_format is not enabled. It is normally good idea # to have this turned on if you frequently add new queries to the # system. slow_query_log # All queries taking more than this amount of time (in seconds) will be # trated as slow. Do not use "1" as a value here, as this will result in # even very fast queries being logged from time to time (as MySQL # currently measures time with second accuracy only). long_query_time = 2 # *** Replication related settings # Unique server identification number between 1 and 2^32-1. This value # is required for both master and slave hosts. It defaults to 1 if # "master-host" is not set, but will MySQL will not function as a master # if it is omitted. server-id = 1 # Replication Slave (comment out master section to use this) # # To configure this host as a replication slave, you can choose between # two methods : # # 1) Use the CHANGE MASTER TO command (fully described in our manual) - # the syntax is: # # CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>, # MASTER_USER=<user>, MASTER_PASSWORD=<password> ; # # where you replace <host>, <user>, <password> by quoted strings and # <port> by the master's port number (3306 by default). # # Example: # # CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306, # MASTER_USER='joe', MASTER_PASSWORD='secret'; # # OR # # 2) Set the variables below. However, in case you choose this method, then # start replication for the first time (even unsuccessfully, for example # if you mistyped the password in master-password and the slave fails to # connect), the slave will create a master.info file, and any later # changes in this file to the variable values below will be ignored and # overridden by the content of the master.info file, unless you shutdown # the slave server, delete master.info and restart the slaver server. # For that reason, you may want to leave the lines below untouched # (commented) and instead use CHANGE MASTER TO (see above) # # required unique id between 2 and 2^32 - 1 # (and different from the master) # defaults to 2 if master-host is set # but will not function as a slave if omitted #server-id = 2 # # The replication master for this slave - required #master-host = <hostname> # # The username the slave will use for authentication when connecting # to the master - required #master-user = <username> # # The password the slave will authenticate with when connecting to # the master - required #master-password = <password> # # The port the master is listening on. # optional - defaults to 3306 #master-port = <port> # Make the slave read-only. Only users with the SUPER privilege and the # replication slave thread will be able to modify data on it. You can # use this to ensure that no applications will accidently modify data on # the slave instead of the master #read_only #*** MyISAM Specific options # Size of the Key Buffer, used to cache index blocks for MyISAM tables. # Do not set it larger than 30% of your available memory, as some memory # is also required by the OS to cache rows. Even if you're not using # MyISAM tables, you should still set it to 8-64M as it will also be # used for internal temporary disk tables. key_buffer_size = 32M # MyISAM uses special tree-like cache to make bulk inserts (that is, # INSERT ... SELECT, INSERT ... VALUES (...), (...), ..., and LOAD DATA # INFILE) faster. This variable limits the size of the cache tree in # bytes per thread. Setting it to 0 will disable this optimisation. Do # not set it larger than "key_buffer_size" for optimal performance. # This buffer is allocated when a bulk insert is detected. bulk_insert_buffer_size = 64M # This buffer is allocated when MySQL needs to rebuild the index in # REPAIR, OPTIMIZE, ALTER table statements as well as in LOAD DATA INFILE # into an empty table. It is allocated per thread so be careful with # large settings. myisam_sort_buffer_size = 128M # The maximum size of the temporary file MySQL is allowed to use while # recreating the index (during REPAIR, ALTER TABLE or LOAD DATA INFILE. # If the file-size would be bigger than this, the index will be created # through the key cache (which is slower). myisam_max_sort_file_size = 10G # If a table has more than one index, MyISAM can use more than one # thread to repair them by sorting in parallel. This makes sense if you # have multiple CPUs and plenty of memory. myisam_repair_threads = 1 # Automatically check and repair not properly closed MyISAM tables. myisam_recover # *** INNODB Specific options *** # Use this option if you have a MySQL server with InnoDB support enabled # but you do not plan to use it. This will save memory and disk space # and speed up some things. #skip-innodb ############################################################ basedir=/opt/mysql5516 datadir=/opt/mysql-data event-scheduler=on general-log slow-query-log log-queries-not-using-indexes log_warnings #skip-locking #skip-federated innodb_file_per_table=1 innodb_file_format=barracuda innodb_strict_mode=0 #innodb_use_sys_malloc=1 ############################################################ # Additional memory pool that is used by InnoDB to store metadata # information. If InnoDB requires more memory for this purpose it will # start to allocate it from the OS. As this is fast enough on most # recent operating systems, you normally do not need to change this # value. SHOW INNODB STATUS will display the current amount used. innodb_additional_mem_pool_size = 16M # InnoDB, unlike MyISAM, uses a buffer pool to cache both indexes and # row data. The bigger you set this the less disk I/O is needed to # access data in tables. On a dedicated database server you may set this # parameter up to 80% of the machine physical memory size. Do not set it # too large, though, because competition of the physical memory may # cause paging in the operating system. Note that on 32bit systems you # might be limited to 2-3.5G of user level memory per process, so do not # set it too high. innodb_buffer_pool_size = 2G # InnoDB stores data in one or more data files forming the tablespace. # If you have a single logical drive for your data, a single # autoextending file would be good enough. In other cases, a single file # per device is often a good choice. You can configure InnoDB to use raw # disk partitions as well - please refer to the manual for more info # about this. innodb_data_file_path = ibdata1:10M:autoextend # Set this option if you would like the InnoDB tablespace files to be # stored in another location. By default this is the MySQL datadir. #innodb_data_home_dir = <directory> # Number of IO threads to use for async IO operations. This value is # hardcoded to 8 on Unix, but on Windows disk I/O may benefit from a # larger number. innodb_write_io_threads = 8 innodb_read_io_threads = 8 # If you run into InnoDB tablespace corruption, setting this to a nonzero # value will likely help you to dump your tables. Start from value 1 and # increase it until you're able to dump the table successfully. #innodb_force_recovery=1 # Number of threads allowed inside the InnoDB kernel. The optimal value # depends highly on the application, hardware as well as the OS # scheduler properties. A too high value may lead to thread thrashing. innodb_thread_concurrency = 16 # If set to 1, InnoDB will flush (fsync) the transaction logs to the # disk at each commit, which offers full ACID behavior. If you are # willing to compromise this safety, and you are running small # transactions, you may set this to 0 or 2 to reduce disk I/O to the # logs. Value 0 means that the log is only written to the log file and # the log file flushed to disk approximately once per second. Value 2 # means the log is written to the log file at each commit, but the log # file is only flushed to disk approximately once per second. innodb_flush_log_at_trx_commit = 1 # Speed up InnoDB shutdown. This will disable InnoDB to do a full purge # and insert buffer merge on shutdown. It may increase shutdown time a # lot, but InnoDB will have to do it on the next startup instead. #innodb_fast_shutdown # The size of the buffer InnoDB uses for buffering log data. As soon as # it is full, InnoDB will have to flush it to disk. As it is flushed # once per second anyway, it does not make sense to have it very large # (even with long transactions). innodb_log_buffer_size = 8M # Size of each log file in a log group. You should set the combined size # of log files to about 25%-100% of your buffer pool size to avoid # unneeded buffer pool flush activity on log file overwrite. However, # note that a larger logfile size will increase the time needed for the # recovery process. innodb_log_file_size = 256M # Total number of files in the log group. A value of 2-3 is usually good # enough. innodb_log_files_in_group = 3 # Location of the InnoDB log files. Default is the MySQL datadir. You # may wish to point it to a dedicated hard drive or a RAID1 volume for # improved performance #innodb_log_group_home_dir # Maximum allowed percentage of dirty pages in the InnoDB buffer pool. # If it is reached, InnoDB will start flushing them out agressively to # not run out of clean pages at all. This is a soft limit, not # guaranteed to be held. innodb_max_dirty_pages_pct = 90 # The flush method InnoDB will use for Log. The tablespace always uses # doublewrite flush logic. The default value is "fdatasync", another # option is "O_DSYNC". #innodb_flush_method=O_DSYNC # How long an InnoDB transaction should wait for a lock to be granted # before being rolled back. InnoDB automatically detects transaction # deadlocks in its own lock table and rolls back the transaction. If you # use the LOCK TABLES command, or other transaction-safe storage engines # than InnoDB in the same transaction, then a deadlock may arise which # InnoDB cannot notice. In cases like this the timeout is useful to # resolve the situation. innodb_lock_wait_timeout = 120 [mysqldump] # Do not buffer the whole result set in memory before writing it to # file. Required for dumping very large tables quick max_allowed_packet = 16M [mysql] no-auto-rehash # Only allow UPDATEs and DELETEs that use keys. #safe-updates [myisamchk] key_buffer_size = 512M sort_buffer_size = 512M read_buffer = 8M write_buffer = 8M [mysqlhotcopy] interactive-timeout [mysqld_safe] # Increase the amount of open files allowed per process. Warning: Make # sure you have set the global system limit high enough! The high value # is required for a large number of opened tables open-files-limit = 8192 log-error=/opt/mysql5516/mysqld.log pid-file=/opt/mysql5516/mysqld.pid
[(12:55 AM)][(root@alpha)] [(~)] $ mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1279229 Server version: 5.5.16-log Source distribution Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. This software comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to modify and redistribute it under the GPL v2 license Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> SHOW GLOBAL VARIABLES; +---------------------------------------------------+------------------------------------------------------------------------------------------------------------------------+ | Variable_name | Value | +---------------------------------------------------+------------------------------------------------------------------------------------------------------------------------+ | auto_increment_increment | 1 | | auto_increment_offset | 1 | | autocommit | ON | | automatic_sp_privileges | ON | | back_log | 50 | | basedir | /opt/mysql5516 | | big_tables | OFF | | binlog_cache_size | 1048576 | | binlog_direct_non_transactional_updates | OFF | | binlog_format | MIXED | | binlog_stmt_cache_size | 32768 | | bulk_insert_buffer_size | 67108864 | | character_set_client | latin1 | | character_set_connection | latin1 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | latin1 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /opt/mysql5516/share/charsets/ | | collation_connection | latin1_swedish_ci | | collation_database | latin1_swedish_ci | | collation_server | latin1_swedish_ci | | completion_type | NO_CHAIN | | concurrent_insert | AUTO | | connect_timeout | 10 | | datadir | /opt/mysql-data/ | | date_format | %Y-%m-%d | | datetime_format | %Y-%m-%d %H:%i:%s | | default_storage_engine | InnoDB | | default_week_format | 0 | | delay_key_write | ON | | delayed_insert_limit | 100 | | delayed_insert_timeout | 300 | | delayed_queue_size | 1000 | | div_precision_increment | 4 | | engine_condition_pushdown | ON | | event_scheduler | ON | | expire_logs_days | 0 | | flush | OFF | | flush_time | 0 | | foreign_key_checks | ON | | ft_boolean_syntax | + -><()~*:""&| | | ft_max_word_len | 84 | | ft_min_word_len | 4 | | ft_query_expansion_limit | 20 | | ft_stopword_file | (built-in) | | general_log | ON | | general_log_file | /opt/mysql-data/alpha.log | | group_concat_max_len | 1024 | | have_compress | YES | | have_crypt | YES | | have_csv | YES | | have_dynamic_loading | YES | | have_geometry | YES | | have_innodb | YES | | have_ndbcluster | NO | | have_openssl | NO | | have_partitioning | YES | | have_profiling | YES | | have_query_cache | YES | | have_rtree_keys | YES | | have_ssl | NO | | have_symlink | YES | | hostname | alpha.site.net | | ignore_builtin_innodb | OFF | | init_connect | | | init_file | | | init_slave | | | innodb_adaptive_flushing | ON | | innodb_adaptive_hash_index | ON | | innodb_additional_mem_pool_size | 16777216 | | innodb_autoextend_increment | 8 | | innodb_autoinc_lock_mode | 1 | | innodb_buffer_pool_instances | 1 | | innodb_buffer_pool_size | 2147483648 | | innodb_change_buffering | all | | innodb_checksums | ON | | innodb_commit_concurrency | 0 | | innodb_concurrency_tickets | 500 | | innodb_data_file_path | ibdata1:10M:autoextend | | innodb_data_home_dir | | | innodb_doublewrite | ON | | innodb_fast_shutdown | 1 | | innodb_file_format | Barracuda | | innodb_file_format_check | ON | | innodb_file_format_max | Barracuda | | innodb_file_per_table | ON | | innodb_flush_log_at_trx_commit | 1 | | innodb_flush_method | | | innodb_force_recovery | 0 | | innodb_io_capacity | 200 | | innodb_large_prefix | OFF | | innodb_lock_wait_timeout | 120 | | innodb_locks_unsafe_for_binlog | OFF | | innodb_log_buffer_size | 8388608 | | innodb_log_file_size | 268435456 | | innodb_log_files_in_group | 3 | | innodb_log_group_home_dir | ./ | | innodb_max_dirty_pages_pct | 90 | | innodb_max_purge_lag | 0 | | innodb_mirrored_log_groups | 1 | | innodb_old_blocks_pct | 37 | | innodb_old_blocks_time | 0 | | innodb_open_files | 300 | | innodb_purge_batch_size | 20 | | innodb_purge_threads | 0 | | innodb_random_read_ahead | OFF | | innodb_read_ahead_threshold | 56 | | innodb_read_io_threads | 8 | | innodb_replication_delay | 0 | | innodb_rollback_on_timeout | OFF | | innodb_rollback_segments | 128 | | innodb_spin_wait_delay | 6 | | innodb_stats_method | nulls_equal | | innodb_stats_on_metadata | ON | | innodb_stats_sample_pages | 8 | | innodb_strict_mode | OFF | | innodb_support_xa | ON | | innodb_sync_spin_loops | 30 | | innodb_table_locks | ON | | innodb_thread_concurrency | 16 | | innodb_thread_sleep_delay | 10000 | | innodb_use_native_aio | OFF | | innodb_use_sys_malloc | ON | | innodb_version | 1.1.8 | | innodb_write_io_threads | 8 | | interactive_timeout | 28800 | | join_buffer_size | 8388608 | | keep_files_on_create | OFF | | key_buffer_size | 33554432 | | 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 | | lc_messages | en_US | | lc_messages_dir | /opt/mysql5516/share/ | | lc_time_names | en_US | | license | GPL | | local_infile | ON | | lock_wait_timeout | 31536000 | | locked_in_memory | OFF | | log | ON | | log_bin | ON | | log_bin_trust_function_creators | OFF | | log_error | /opt/mysql5516/mysqld.log | | log_output | FILE | | log_queries_not_using_indexes | ON | | log_slave_updates | OFF | | log_slow_queries | ON | | log_warnings | 2 | | long_query_time | 2.000000 | | low_priority_updates | OFF | | lower_case_file_system | OFF | | lower_case_table_names | 0 | | max_allowed_packet | 16777216 | | max_binlog_cache_size | 18446744073709547520 | | max_binlog_size | 1073741824 | | max_binlog_stmt_cache_size | 18446744073709547520 | | max_connect_errors | 10 | | max_connections | 100 | | max_delayed_threads | 20 | | max_error_count | 64 | | max_heap_table_size | 67108864 | | max_insert_delayed_threads | 20 | | max_join_size | 18446744073709551615 | | max_length_for_sort_data | 1024 | | max_long_data_size | 16777216 | | max_prepared_stmt_count | 16382 | | max_relay_log_size | 0 | | max_seeks_for_key | 4294967295 | | max_sort_length | 1024 | | max_sp_recursion_depth | 0 | | max_tmp_tables | 32 | | max_user_connections | 0 | | max_write_lock_count | 4294967295 | | min_examined_row_limit | 0 | | multi_range_count | 256 | | myisam_data_pointer_size | 6 | | myisam_max_sort_file_size | 10737418240 | | myisam_mmap_size | 4294967295 | | myisam_recover_options | DEFAULT | | myisam_repair_threads | 1 | | myisam_sort_buffer_size | 134217728 | | myisam_stats_method | nulls_unequal | | myisam_use_mmap | OFF | | net_buffer_length | 16384 | | net_read_timeout | 30 | | net_retry_count | 10 | | net_write_timeout | 60 | | new | OFF | | old | OFF | | old_alter_table | OFF | | old_passwords | OFF | | open_files_limit | 8192 | | optimizer_prune_level | 1 | | optimizer_search_depth | 62 | | optimizer_switch | index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on | | performance_schema | OFF | | performance_schema_events_waits_history_long_size | 10000 | | performance_schema_events_waits_history_size | 10 | | performance_schema_max_cond_classes | 80 | | performance_schema_max_cond_instances | 1000 | | performance_schema_max_file_classes | 50 | | performance_schema_max_file_handles | 32768 | | performance_schema_max_file_instances | 10000 | | performance_schema_max_mutex_classes | 200 | | performance_schema_max_mutex_instances | 1000000 | | performance_schema_max_rwlock_classes | 30 | | performance_schema_max_rwlock_instances | 1000000 | | performance_schema_max_table_handles | 100000 | | performance_schema_max_table_instances | 50000 | | performance_schema_max_thread_classes | 50 | | performance_schema_max_thread_instances | 1000 | | pid_file | /opt/mysql-data/alpha.site.net.pid | | plugin_dir | /opt/mysql5516/lib/plugin | | port | 3306 | | preload_buffer_size | 32768 | | profiling | OFF | | profiling_history_size | 15 | | protocol_version | 10 | | query_alloc_block_size | 8192 | | query_cache_limit | 2097152 | | query_cache_min_res_unit | 4096 | | query_cache_size | 67108864 | | query_cache_type | ON | | query_cache_wlock_invalidate | OFF | | query_prealloc_size | 8192 | | range_alloc_block_size | 4096 | | read_buffer_size | 2097152 | | read_only | OFF | | read_rnd_buffer_size | 16777216 | | relay_log | | | relay_log_index | | | relay_log_info_file | relay-log.info | | relay_log_purge | ON | | relay_log_recovery | OFF | | relay_log_space_limit | 0 | | report_host | | | report_password | | | report_port | 3306 | | report_user | | | rpl_recovery_rank | 0 | | secure_auth | OFF | | secure_file_priv | | | server_id | 1 | | skip_external_locking | ON | | skip_name_resolve | OFF | | skip_networking | OFF | | skip_show_database | OFF | | slave_compressed_protocol | OFF | | slave_exec_mode | STRICT | | slave_load_tmpdir | /tmp | | slave_net_timeout | 3600 | | slave_skip_errors | OFF | | slave_transaction_retries | 10 | | slave_type_conversions | | | slow_launch_time | 2 | | slow_query_log | ON | | slow_query_log_file | /opt/mysql-data/alpha-slow.log | | socket | /home/virtual/FILESYSTEMTEMPLATE/.mysqlsock/mysql.sock | | sort_buffer_size | 8388608 | | sql_auto_is_null | OFF | | sql_big_selects | ON | | sql_big_tables | OFF | | sql_buffer_result | OFF | | sql_log_bin | ON | | sql_log_off | OFF | | sql_low_priority_updates | OFF | | sql_max_join_size | 18446744073709551615 | | sql_mode | | | sql_notes | ON | | sql_quote_show_create | ON | | sql_safe_updates | OFF | | sql_select_limit | 18446744073709551615 | | sql_slave_skip_counter | 0 | | sql_warnings | OFF | | ssl_ca | | | ssl_capath | | | ssl_cert | | | ssl_cipher | | | ssl_key | | | storage_engine | InnoDB | | sync_binlog | 0 | | sync_frm | ON | | sync_master_info | 0 | | sync_relay_log | 0 | | sync_relay_log_info | 0 | | system_time_zone | EST | | table_definition_cache | 400 | | table_open_cache | 2048 | | thread_cache_size | 8 | | thread_concurrency | 8 | | thread_handling | one-thread-per-connection | | thread_stack | 196608 | | time_format | %H:%i:%s | | time_zone | SYSTEM | | timed_mutexes | OFF | | tmp_table_size | 67108864 | | tmpdir | /tmp | | transaction_alloc_block_size | 8192 | | transaction_prealloc_size | 4096 | | tx_isolation | REPEATABLE-READ | | unique_checks | ON | | updatable_views_with_limit | YES | | version | 5.5.16-log | | version_comment | Source distribution | | version_compile_machine | i686 | | version_compile_os | Linux | | wait_timeout | 28800 | +---------------------------------------------------+------------------------------------------------------------------------------------------------------------------------+ 312 rows in set (0.00 sec) mysql> exit Bye [(12:58 AM)][(root@alpha)] [(~)] $
[(01:30 AM)][(root@alpha)] [(~)] $ iostat Linux 2.6.18-238.19.1.el5PAE (alpha.site.net) 09/20/2011 avg-cpu: %user %nice %system %iowait %steal %idle 43.53 0.04 7.83 5.99 0.00 42.61 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn sda 100.85 1153.78 3261.45 1244406332 3517642726 sda1 0.00 0.39 0.00 420074 310 sda2 0.00 0.00 0.00 1442 0 sda3 100.85 1153.38 3261.45 1243984544 3517642416 sdb 99.94 1148.67 3269.49 1238901254 3526315590 sdb1 0.00 0.39 0.00 417762 310 sdb2 0.15 4.75 8.04 5119034 8673304 sdb3 99.79 1143.54 3261.45 1233364186 3517641976 md1 2406.89 501.24 3249.50 540616762 3504756040 md0 0.00 0.00 0.00 2956 70
[(01:31 AM)][(root@alpha)] [(~)] $ vmstat 5 10 procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------ r b swpd free buff cache si so bi bo in cs us sy id wa st 8 0 216024 1363404 239460 3508060 1 1 63 410 9 1 44 8 43 6 0 6 0 216024 1366532 239464 3508624 0 0 37 588 1334 1693 97 2 1 0 0 3 1 216024 1371636 239476 3508912 0 0 32 2350 1598 1899 81 2 15 2 0 1 0 216024 1394860 239480 3509424 0 0 42 552 1427 1775 55 2 41 2 0 2 0 216024 1389316 239484 3509816 0 0 48 1793 1375 1599 54 2 39 5 0 2 0 216024 1402180 239488 3510292 0 0 43 707 1488 1748 53 2 40 5 0 2 1 216024 1099040 239496 3752988 0 0 19 47315 1500 1354 66 5 19 10 0 4 1 216024 1341104 239776 3510604 0 0 6 56791 1525 935 15 10 44 31 0 2 0 216024 1393168 239804 3511192 0 0 38 2954 2009 2471 74 4 15 6 0 1 0 216024 1396788 239824 3511608 0 0 24 1187 1634 1833 52 2 43 2 0 [(01:32 AM)][(root@alpha)] [(~)] $
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