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- [mysqld]
- innodb_file_per_table=1
- local-infile=0
- tmpdir =/dev/shm
- max_connections = 1024
- max_user_connections=650
- key_buffer_size = 1024M
- myisam_sort_buffer_size = 64M
- #default-storage-engine=MyISAM
- join_buffer_size = 1M
- read_buffer_size = 1M
- sort_buffer_size = 256K
- thread_cache_size = 384
- wait_timeout = 20
- connect_timeout = 10
- tmp_table_size = 64M
- max_heap_table_size = 64M
- max_allowed_packet = 64M
- net_buffer_length = 16384
- max_connect_errors = 10
- thread_concurrency = 16
- concurrent_insert = 2
- read_rnd_buffer_size = 786432
- bulk_insert_buffer_size = 8M
- query_cache_limit = 7M
- query_cache_size = 64M
- query_cache_type = 1
- query_prealloc_size = 262144
- query_alloc_block_size = 65536
- transaction_alloc_block_size = 8192
- transaction_prealloc_size = 4096
- max_write_lock_count = 16
- innodb_buffer_pool_size=8G #75 % of RAM
- innodb_flush_log_at_trx_commit=2
- innodb_thread_concurrency=8 # of cpus
- innodb_flush_method=O_DIRECT
- [mysqld_safe]
- open_files_limit = 8192
- [mysqldump]
- quick
- max_allowed_packet = 16M
- [myisamchk]
- key_buffer = 384M
- sort_buffer = 384M
- read_buffer = 256M
- /////////////////////////////
- [--] Up for: 2d 3h 25m 54s (23M q [127.290 qps], 468K conn, TX: 138G, RX: 7G)
- [--] Reads / Writes: 89% / 11%
- [--] Binary logging is disabled
- [--] Physical Memory : 31.3G
- [--] Max MySQL memory : 12.9G
- [--] Other process memory: 3.9G
- [--] Total buffers: 9.1G global + 3.2M per thread (1024 max threads)
- [--] P_S Max memory usage: 555M
- [--] Galera GCache Max memory usage: 0B
- [OK] Maximum reached memory usage: 10.0G (31.77% of installed RAM)
- [OK] Maximum possible memory usage: 12.9G (41.28% of installed RAM)
- [OK] Overall possible memory usage with other process is compatible with memory available
- [OK] Slow queries: 0% (5K/23M)
- [OK] Highest usage of available connections: 8% (85/1024)
- [OK] Aborted connections: 0.55% (2598/468725)
- [!!] name resolution is active : a reverse name resolution is made for each new connection and can reduce performance
- [!!] Query cache may be disabled by default due to mutex contention.
- [OK] Query cache efficiency: 61.7% (12M cached / 19M selects)
- [!!] Query cache prunes per day: 1008253
- [OK] Sorts requiring temporary tables: 0% (2K temp sorts / 34M sorts)
- [!!] Joins performed without indexes: 150075
- [!!] Temporary tables created on disk: 52% (577K on disk / 1M total)
- [OK] Thread cache hit rate: 99% (85 created / 468K connections)
- [!!] Table cache hit rate: 1% (2K open / 102K opened)
- [OK] Open file limit used: 24% (1K/8K)
- [OK] Table locks acquired immediately: 99% (38M immediate / 38M locks)
- -------- Performance schema ------------------------------------------------------------------------
- [--] Memory used by P_S: 555.4M
- [--] Sys schema isn't installed.
- -------- ThreadPool Metrics ------------------------------------------------------------------------
- [--] ThreadPool stat is disabled.
- -------- MyISAM Metrics ----------------------------------------------------------------------------
- [!!] Key buffer used: 26.8% (287M used / 1B cache)
- [OK] Key buffer size / total MyISAM indexes: 1.0G/1.5G
- [OK] Read Key buffer hit rate: 100.0% (2B cached / 572K reads)
- [!!] Write Key buffer hit rate: 30.1% (2M cached / 899K writes)
- -------- InnoDB Metrics ----------------------------------------------------------------------------
- [--] InnoDB is enabled.
- [--] InnoDB Thread Concurrency: 8
- [OK] InnoDB File per table is activated
- [OK] InnoDB buffer pool / data size: 8.0G/1.2G
- [!!] Ratio InnoDB log file size / InnoDB Buffer pool size (1.171875 %): 48.0M * 2/8.0G should be equal 25%
- [OK] InnoDB buffer pool instances: 8
- [--] InnoDB Buffer Pool Chunk Size not used or defined in your version
- [OK] InnoDB Read buffer efficiency: 100.00% (786635092 hits/ 786673138 total)
- [!!] InnoDB Write Log efficiency: 51.42% (236640 hits/ 460226 total)
- [OK] InnoDB log waits: 0.00% (0 waits / 223586 writes)
- -------- AriaDB Metrics ----------------------------------------------------------------------------
- [--] AriaDB is disabled.
- -------- TokuDB Metrics ----------------------------------------------------------------------------
- [--] TokuDB is disabled.
- -------- XtraDB Metrics ----------------------------------------------------------------------------
- [--] XtraDB is disabled.
- -------- RocksDB Metrics ---------------------------------------------------------------------------
- [--] RocksDB is disabled.
- -------- Spider Metrics ----------------------------------------------------------------------------
- [--] Spider is disabled.
- -------- Connect Metrics ---------------------------------------------------------------------------
- [--] Connect is disabled.
- -------- Galera Metrics ----------------------------------------------------------------------------
- [--] Galera is disabled.
- -------- Replication Metrics -----------------------------------------------------------------------
- [--] Galera Synchronous replication: NO
- [--] No replication slave(s) for this server.
- [--] This is a standalone server.
- -------- Recommendations ---------------------------------------------------------------------------
- Control warning line(s) into /var/lib/mysql/bh1.behost.es.err file
- Control error line(s) into /var/lib/mysql/bh1.behost.es.err file
- Run OPTIMIZE TABLE to defragment tables for better performance
- OPTIMIZE TABLE `modsec`.`hits`; -- can free 382.777297973633 MB
- Total freed space after theses OPTIMIZE TABLE : 382.777297973633 Mb
- Set up a Secure Password for user@host ( SET PASSWORD FOR 'user'@'SpecificDNSorIp' = PASSWORD('secure_password'); )
- Restrict Host for user@% to user@SpecificDNSorIp
- query_cache_size (=0)
- query_cache_type (=0)
- query_cache_size (> 64M)
- join_buffer_size (> 1.0M, or always use indexes with joins)
- tmp_table_size (> 64M)
- max_heap_table_size (> 64M)
- table_open_cache (> 2000)
- innodb_log_file_size should be (=1G) if possible, so InnoDB total log files size equals to 25% of buffer pool size.
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