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私たちは、テストレベルのサーバではほとんど毎日、テーブルレベルのロックの問題に直面しています。innodbテーブルレベルのロック
TRANSACTION 0, not started
mysql tables in use 97, locked 97
MySQL thread id 429, OS thread handle 0x2aff6ff59700, query id 24900 ec2-*-*-*-*.compute-1.amazonaws.com *.*.*.* sminq cleaning up
---TRANSACTION 10631403, not started
MySQL thread id 321, OS thread handle 0x2aff7b359700, query id 24901 115.112.140.139 sminq init
show engine innodb status
---TRANSACTION 10632661, not started
MySQL thread id 13, OS thread handle 0x2aff4e39a700, query id 24817 localhost 127.0.0.1 rdsadmin cleaning up
---TRANSACTION 10632664, not started
MySQL thread id 6, OS thread handle 0x2aff396c5700, query id 24873 ec2-*-*-*-*.ap-southeast-1.compute.amazonaws.com *.*.*.* sminq cleaning up
---TRANSACTION 10632655, not started
MySQL thread id 7, OS thread handle 0x2aff39706700, query id 24783 ec2-*-*-*-*.ap-southeast-1.compute.amazonaws.com *.*.*.* sminq cleaning up
---TRANSACTION 10632652, not started
MySQL thread id 3, OS thread handle 0x2aff37d28700, query id 24745 ec2-*-*-*-*.ap-southeast-1.compute.amazonaws.com *.*.*.* sminq cleaning up
---TRANSACTION 10627075, not started
MySQL thread id 1, OS thread handle 0x2aff37ca6700, query id 0 Waiting for background binlog tasks
---TRANSACTION 10632663, ACTIVE 7 sec
mysql tables in use 1, locked 1
MySQL thread id 431, OS thread handle 0x2aff37daa700, query id 24863 172.31.3.120 sminq Waiting for table level lock
insert into `sminq`.`Queue_token` (`token_queue_id`, `total_process_time`, `token_user`, `created_on`, `join_date`, `join_time`, `app_type`, `token_user_group`, `uuid`) values (13, 10, 87, '2016-07-21 04:47:04.157000', '2016-07-21 10:17:04', '10:10:00', 1, NULL, 'D<??BY??7?gk?Uo')
Trx #rec lock waits 0 #table lock waits 0
Trx total rec lock wait time 0 SEC
Trx total table lock wait time 0 SEC
---TRANSACTION 10632646, ACTIVE 45 sec
これらは挿入物でのみ発生します。私たちは更新または削除の問題に直面しませんでした。
これは我々がT2でテストを実行しているテスト・サーバであるので、私は、分離レベルREAD-COMMITTED、同じサーバ
[--] Up for: 2h 11m 55s (25K q [3.230 qps], 478 conn, TX: 3M, RX: 1M)
[--] Reads/Writes: 82%/18%
[--] Binary logging is enabled (GTID MODE: OFF)
[--] Total buffers: 1.5G global + 17.0M per thread (100 max threads)
[!!] Maximum reached memory usage: 3.0G (152.35% of installed RAM)
[!!] Maximum possible memory usage: 3.1G (156.50% of installed RAM)
[OK] Slow queries: 0% (0/25K)
[!!] Highest connection usage: 95% (95/100)
[OK] Aborted connections: 0.00% (0/478)
[!!] Query cache is disabled
[OK] Sorts requiring temporary tables: 0% (0 temp sorts/1K sorts)
[OK] Temporary tables created on disk: 24% (424 on disk/1K total)
[OK] Thread cache hit rate: 80% (95 created/478 connections)
[OK] Table cache hit rate: 129% (291 open/224 opened)
[OK] Open file limit used: 0% (64/65K)
[OK] Table locks acquired immediately: 99% (6K immediate/6K locks)
[OK] Binlog cache memory access: 100.00% (1618 Memory/1618 Total)
-------- MyISAM Metrics -----------------------------------------------------
[!!] Key buffer used: 18.5% (1M used/8M cache)
[OK] Key buffer size/total MyISAM indexes: 8.0M/2.4M
[!!] Read Key buffer hit rate: 82.2% (90 cached/16 reads)
-------- InnoDB Metrics -----------------------------------------------------
[--] InnoDB is enabled.
[OK] InnoDB buffer pool/data size: 1.3G/29.0M
[!!] InnoDB buffer pool instances: 8
[!!] InnoDB Used buffer: 1.32% (1139 used/ 86584 total)
[OK] InnoDB Read buffer efficiency: 99.86% (713109 hits/ 714137 total)
[!!] InnoDB Write buffer efficiency: 0.00% (0 hits/ 1 total)
[OK] InnoDB log waits: 0.00% (0 waits/4915 writes)
ためinnodb_autoinc_lock_mode = 2
mysqltuner出力と共にを有します。 small
'--- TRANSACTION 10632646、ACTIVE 45 sec' - この取引は何ですか？なぜ45秒間開いているのですか？ – akuzminsky
PROCESS_LISTから詳細を取得できますか？ – user160108
いいえ、プロセスリストの過去のステートメントは表示されません。 – akuzminsky