{"id":1615,"date":"2015-06-21T23:24:30","date_gmt":"2015-06-21T14:24:30","guid":{"rendered":"http:\/\/a23187.yorozuyah.com\/blog\/?p=1615"},"modified":"2015-06-23T12:28:52","modified_gmt":"2015-06-23T03:28:52","slug":"pt-query-digest%e3%82%92%e8%a6%8b%e3%81%aa%e3%81%8a%e3%81%97%e3%81%a6%e3%81%bf%e3%82%8b","status":"publish","type":"post","link":"https:\/\/a23187.yorozuyah.com\/blog\/?p=1615","title":{"rendered":"pt-query-digest\u3092\u898b\u306a\u304a\u3057\u3066\u307f\u308b"},"content":{"rendered":"

\u30d6\u30ed\u30b0\u66f4\u65b0\u3092\u304b\u306a\u308a\u3055\u307c\u3063\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u3061\u3087\u3063\u3068\u305a\u3064\u66f4\u65b0\u3092\u518d\u958b\u3057\u307e\u3059\u3002<\/code><\/p>\n

\u4e45\u3057\u3076\u308a\u306e\u30dd\u30b9\u30c8\u3067\u3059\u304cPercona\u793e\u306eMySQL\u95a2\u9023\u304a\u5f79\u7acb\u3061\u30c4\u30fc\u30ebPercona Toolkit\u306e\u4e2d\u3067\u3082\u4e00\u756a\u3001\u4f7f\u3048\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u601d\u3063\u3066\u308bpt-query-digest\u306b\u3064\u3044\u3066\u3067\u3059\u3002<\/p>\n

\u524d\u304b\u3089\u4f7f\u3063\u3066\u306f\u3044\u308b\u3082\u306e\u306e\u3001\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u5909\u308f\u3063\u3066\u77e5\u3089\u306a\u3044\u9593\u306b\u3044\u308d\u3044\u308d\u6a5f\u80fd\u304c\u8ffd\u52a0\u3055\u308c\u305f\u308a\u9006\u306b\u7121\u304f\u306a\u3063\u3066\u305f\u308a\u3001\u4eca\u4e00\u5ea6\u898b\u306a\u304a\u3057\u3066\u307f\u3088\u3046\u3068\u3044\u3046\u3068\u3053\u308d\u3067\u3059\u3002<\/p>\n

Percona Toolkit<\/a><\/p>\n

\u305d\u3082\u305d\u3082\u3001pt-query-digest\u3068\u306f\u4e00\u8a00\u3067\u3044\u308d\u3093\u306a\u30a4\u30f3\u30d7\u30c3\u30c8\u60c5\u5831\u304b\u3089\u30af\u30a8\u30ea\u3092\u96c6\u8a08\u3057\u3066\u304f\u308c\u3066\u3001\u60aa\u3044\u9806\u306b\u4e26\u3079\u3066\u304f\u308c\u308b\u3088\u3046\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002<\/p>\n

# 6.2s user time, 130ms system time, 28.20M rss, 114.51M vsz
\n# Current date: Sun Jun 21 22:19:32 2015
\n# Hostname: XXXX
\n# Files: XXXX-slow.log
\n# Overall: 10.05k total, 38 unique, 0.00 QPS, 0.00x concurrency __________
\n# Time range: 2013-08-25 17:33:45 to 2015-06-21 03:02:33
\n# Attribute total min max avg 95% stddev median
\n# ============ ======= ======= ======= ======= ======= ======= =======
\n# Exec time 40082s 2s 110s 4s 8s 5s 3s
\n# Lock time 267s 0 11s 27ms 2ms 264ms 138us
\n# Rows sent 909.20M 0 362.15k 92.59k 345.04k 145.13k 0
\n# Rows examine 909.21M 0 362.15k 92.59k 345.04k 145.13k 0.99
\n# Query size 47.96M 11 289.23k 4.88k 9.33k 15.01k 107.34# Profile
\n# Rank Query ID Response time Calls R\/Call V\/M Item
\n# ==== ================== ================ ===== ======= ===== ===========
\n# 1 0x94350EA2AB8AAC34 20519.9653 51.2% 6116 3.3551 1.31 UPDATE AAAA
\n# 2 0x67A347A2812914DF 14591.3722 36.4% 3037 4.8045 10.86 SELECT BBBB
\n# 3 0x30FE5C2032672827 2344.5861 5.8% 177 13.2462 15.07 SHOW TABLE STATUS
\n# 4 0xAA8DB00350539EB6 1035.0229 2.6% 281 3.6834 2.87 DELETE CCCC
\n# 5 0x8AE5000CAF43D53F 862.7898 2.2% 273 3.1604 0.86 INSERT UPDATE DDDD
\n# 6 0x132628303F99240D 368.0135 0.9% 85 4.3296 2.23 SHOW TABLES
\n# 7 0xF9A57DD5A41825CA 75.0345 0.2% 11 6.8213 2.37 SELECT
\n# 9 0x7AEDF19FDD3A33F1 35.2736 0.1% 13 2.7134 0.23 SELECT EEEE
\n# MISC 0xMISC 249.6660 0.6% 62 4.0269 0.0 <30 ITEMS><\/div>\n
<\/div>\n
\u3053\u306e\u3042\u3068\u306b\u500b\u5225\u306e\u30af\u30a8\u30ea\u30ec\u30dd\u30fc\u30c8\u304c\u7d9a\u304f<\/div>\n

\u6614\u306fmemcached\u3084postgresql\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u3044\u305f\u3088\u3046\u3067\u3059\u304c\u3001\u6700\u8fd1\u306e\u30de\u30cb\u30e5\u30a2\u30eb\u306b\u306f\u305d\u3093\u306a\u3053\u3068\u306f\u66f8\u3044\u3066\u3044\u306a\u3044\u3088\u3046\u3067\u3059\u3002<\/p>\n

\u30a4\u30f3\u30d7\u30c3\u30c8\u60c5\u5831\u5225\u306e\u4f7f\u3044\u65b9<\/span><\/h1>\n

\u307e\u305a\u306f\u30a4\u30f3\u30d7\u30c3\u30c8\u60c5\u5831\u306e\u7a2e\u985e\u5225\u306b\u3069\u3046\u3044\u3046\u30b7\u30c1\u30e5\u30a8\u30fc\u30b7\u30e7\u30f3\u3067\u4f7f\u3046\u306e\u304b\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n

show processlist\u304b\u3089\u8aad\u307f\u8fbc\u3080\u5834\u5408\u306e\u4f8b<\/span><\/h3>\n
$ pt-query-digest –processlist h=localhost,u=root,p=password –run-time 60
\nReading from STDIN …<\/div>\n

\u4e0a\u306e\u4f8b\u3067\u306f\u3001–run-time\u306e\u79d2\u6570\u306e\u9593\u3067show processlist\u3067\u62bd\u51fa\u3055\u308c\u305f\u30af\u30a8\u30ea\u304c\u96c6\u8a08\u3055\u308c\u307e\u3059\u3002
\n\u6307\u5b9a\u3057\u305f\u6642\u9593\u304c\u7d4c\u904e\u3059\u308b\u3068\u30ec\u30dd\u30fc\u30c8\u304c\u51fa\u529b\u3055\u308c\u307e\u3059\u3002<\/p>\n

\u305f\u3060\u3057\u3001show processlist\u3092\u5b9f\u884c\u3057\u3066\u62bd\u51fa\u3059\u308b\u3088\u3046\u306a\u306e\u3067\u3001\u30bf\u30a4\u30df\u30f3\u30b0\u304c\u5408\u3063\u3066\u8a18\u9332\u3067\u304d\u305f\u30af\u30a8\u30ea\u3057\u304b\u53d6\u5f97\u3067\u304d\u306a\u3044\u3088\u3046\u3067\u3059\u3002<\/p>\n

tcpdump\u3092\u4f75\u7528\u3059\u308b\u306e\u304c\u6700\u5f37\u306a\u306e\u3067\u3059\u304c\u3001\u3069\u3046\u3057\u3066\u3082tcpdump\u304c\u4f7f\u3048\u306a\u3044\u72b6\u6cc1\u306a\u3069\u306b\u7c21\u6613\u7684\u306b\u30af\u30a8\u30ea\u3092\u62bd\u51fa\u3057\u305f\u3044\u5834\u5408\u306b\u6709\u52b9\u306a\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

\u30d0\u30a4\u30ca\u30ea\u30ed\u30b0\u304b\u3089\u8aad\u307f\u8fbc\u3080\u5834\u5408\u306e\u4f8b<\/span><\/h3>\n
# mysqlbinlog mysql-bin.000203 > \/tmp\/binlog.log
\n# pt-query-digest –type binlog \/tmp\/binlog.log<\/div>\n

\u5f53\u305f\u308a\u524d\u3067\u3059\u304c\u3001\u30d0\u30a4\u30ca\u30ea\u30ed\u30b0\u306f\u66f4\u65b0\u30af\u30a8\u30ea\u3057\u304b\u6b8b\u3055\u308c\u3066\u3044\u306a\u3044\u306e\u3067\u3001SELECT\u306f\u62bd\u51fa\u3067\u304d\u307e\u305b\u3093\u3002
\n\u307e\u305f\u3001\u30d0\u30a4\u30ca\u30ea\u30ed\u30b0\u304c\u884c\u30d9\u30fc\u30b9\u306e\u5834\u5408\u306f\u30af\u30a8\u30ea\u306f\u6b8b\u3063\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u7d50\u679c\u4f55\u3082\u308f\u304b\u3089\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u30fb\u30fb\u30fb\u3002<\/p>\n

general\u30ed\u30b0\u3082\u98df\u3079\u3089\u308c\u307e\u3059<\/span><\/h3>\n
# pt-query-digest –type genlog general.log<\/div>\n

general\u30ed\u30b0\u3092\u6709\u52b9\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u3059\u3079\u3066\u306e\u30af\u30a8\u30ea\u3092\u89e3\u6790\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\ntcpdump\u304c\u4f7f\u3048\u306a\u3044\u6642\u306b\u3001mysql\u306e\u7ba1\u7406\u8005\u6a29\u9650\u304c\u3042\u308c\u3070general\u30ed\u30b0\u3092\u6709\u52b9\u306b\u3057\u3066\u3001\u3059\u3079\u3066\u306e\u30af\u30a8\u30ea\u3092\u51fa\u529b\u3057\u3066\u304a\u3044\u3066\u3001\u5f8c\u304b\u3089\u89e3\u6790\u3067\u304d\u307e\u3059\u3002
\n\u305f\u3060\u3057\u3001\u3082\u3068\u3082\u3068general\u30ed\u30b0\u306b\u306f\u30af\u30a8\u30ea\u306e\u5b9f\u884c\u6642\u9593\u304c\u542b\u307e\u308c\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u3069\u3093\u306a\u30af\u30a8\u30ea\u304c\u4f55\u56de\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u304b\u306a\u3069\u306e\u3001\u5927\u307e\u304b\u306a\u7d50\u679c\u3057\u304b\u51fa\u307e\u305b\u3093\u3002<\/p>\n

\u30b9\u30ed\u30fc\u30af\u30a8\u30ea\u30ed\u30b0\u3082\u98df\u3079\u3089\u308c\u307e\u3059<\/span><\/h3>\n
# pt-query-digest –type slowlog slow.log<\/div>\n

\u30b9\u30ed\u30fc\u30af\u30a8\u30ea\u30ed\u30b0\u306a\u306e\u3067\u3001\u5168\u3066\u3092\u7db2\u7f85\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306a\u304f\u3001\u3042\u304f\u307e\u3067\u3057\u304d\u3044\u5024\u3092\u8d85\u3048\u305f\u9045\u3044\u30af\u30a8\u30ea\u3060\u3051\u304c\u5bfe\u8c61\u3067\u3059\u3002
\n\u30aa\u30f3\u30e9\u30a4\u30f3\u3067\u30b9\u30ed\u30fc\u30af\u30a8\u30ea\u306e\u3057\u304d\u3044\u5024\u30920\u306b\u3059\u308c\u3070\u7db2\u7f85\u6027\u306f\u4e0a\u304c\u308a\u307e\u3059\u304c\u3001\u305d\u3082\u305d\u3082\u305d\u3093\u306a\u8a2d\u5b9a\u81ea\u4f53\u304c\u8a31\u3055\u308c\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n

\u7d50\u679c\u7684\u306b\u5b9f\u884c\u6642\u9593\u304c\u77ed\u3044\u304c\u56de\u6570\u304c\u591a\u3044\u30af\u30a8\u30ea\u3084\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u30ec\u30f3\u30b8\u30b9\u30ad\u30e3\u30f3\u306a\u3069\u3067CPU\u3092\u591a\u304f\u4f7f\u3063\u3066\u3044\u308b\u3088\u3046\u306a\u30af\u30a8\u30ea\u304c\u6f0f\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n

\u6700\u5f37\u306etcpdump\u306e\u4f75\u7528<\/span><\/h3>\n

\u3084\u306f\u308a\u4e00\u756a\u52b9\u679c\u7684\u306a\u306e\u306ftcpdump\u3092\u8aad\u307f\u8fbc\u307e\u305b\u3066\u306e\u89e3\u6790\u3067\u3059\u3002
\n\u3059\u3079\u3066\u306e\u30af\u30a8\u30ea\u304c\u5bfe\u8c61\u306b\u306a\u308b\u306e\u3067\u3001\u6f0f\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u305b\u3093\u3002
\n\u307e\u305f\u3001DB\u3068\u306f\u95a2\u4fc2\u306a\u3044\u6240\u3067\u5b9f\u884c\u3067\u304d\u308b\u306e\u3067\u3001tcpdump\u3055\u3048\u53d6\u5f97\u3057\u3066\u3001\u5225\u306e\u30b5\u30fc\u30d0\u3067\u30ec\u30dd\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u7b49\u3082\u7c21\u5358\u3067\u3059\u3002
\nOS\u306eroot\u6a29\u9650\u304c\u5fc5\u8981\u306b\u306a\u308b\u306e\u3067\u3001\u904b\u7528\u4e0a\u306e\u554f\u984c\u3067\u5b9f\u884c\u3067\u304d\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u305d\u306e\u5834\u5408\u306f\u3001OS\u7ba1\u7406\u8005\u306b\u5b9f\u884c\u3057\u3066\u3082\u3089\u3046\u304b\u3001\u3060\u3081\u306a\u5834\u5408\u306f\u4e0a\u8ff0\u306e\u5225\u306e\u624b\u6bb5\u306b\u306a\u308b\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

# tcpdump -s 65535 -x -nn -q -tttt -i any -c 1000 port 3306 mysql.tcpdump
\n# pt-query-digest –type tcpdump mysql.tcpdump<\/div>\n

 <\/p>\n

\u305d\u306e\u4ed6\u306e\u304a\u5f79\u7acb\u3061<\/span><\/h1>\n

\u4ed6\u306b\u3082\u5f79\u306b\u7acb\u3061\u305d\u3046\u306a\u6a5f\u80fd\u304c\u76ee\u767d\u62bc\u3057\u3067\u3059\u3002<\/p>\n

\u89e3\u6790\u6642\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3067EXPLAIN\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059<\/span><\/h3>\n
\n

# pt-query-digest –type slowlog –explain h=localhost,u=root XXXX-slow.log<\/p>\n

\u629c\u7c8b<\/p>\n

# Query 9: 0.00 QPS, 0.00x concurrency, ID 0x7AEDF19FDD3A33F1 at byte 51668983
\n# Scores: V\/M = 0.23
\n# Time range: 2013-09-22 09:11:06 to 2014-09-13 23:53:06
\n# Attribute pct total min max avg 95% stddev median
\n# ============ === ======= ======= ======= ======= ======= ======= =======
\n# Count 0 13
\n# Exec time 0 35s 2s 5s 3s 4s 794ms 2s
\n# Lock time 0 2ms 50us 285us 117us 167us 54us 105us
\n# Rows sent 0 10 0 1 0.77 0.99 0.42 0.99
\n# Rows examine 0 10 0 1 0.77 0.99 0.42 0.99
\n# Query size 0 1.14k 77 102 89.46 97.36 5.68 88.31
\n# String:
\n# Databases XXXX
\n# Hosts localhost
\n# Users XXXX
\n# Query_time distribution
\n# 1us
\n# 10us
\n# 100us
\n# 1ms
\n# 10ms
\n# 100ms
\n# 1s ################################################################
\n# 10s+
\n# Tables
\n# SHOW TABLE STATUS FROM `XXXX` LIKE ‘opt’\\G
\n# SHOW CREATE TABLE `XXXX`.`XXXX`\\G
\n# EXPLAIN \/*!50100 PARTITIONS*\/
\nSELECT opt_value FROM XXXX WHERE opt_name = ‘categories’ LIMIT 1\\G
\n# *************************** 1. row ***************************
\n# id: 1
\n# select_type: SIMPLE
\n# table: XXXX
\n# partitions: NULL
\n# type: const
\n# possible_keys: opt_name
\n# key: opt_name
\n# key_len: 194
\n# ref: const
\n# rows: 1
\n# Extra:<\/p>\n<\/div>\n

\u96c6\u8a08\u3059\u308b\u9805\u76ee\u3092\u81ea\u5206\u3067\u4f5c\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059<\/span><\/h3>\n
# pt-query-digest –type slowlog XXXX-slow.log –filter ‘($event->{Row_ratio} = $event->{Query_time} \/ ($event->{Lock_time})) && 1’<\/div>\n

\u7121\u7406\u3084\u308a\u4f5c\u3063\u3066\u307f\u307e\u3057\u305f\u304c\u3001Query_time\uff08\u5b9f\u884c\u6642\u9593\uff09\u3068Lock_time\uff08\u30ed\u30c3\u30af\u6642\u9593\uff09\u306e\u5272\u5408\u3092\u51fa\u529b\u3059\u308b\u3088\u3046\u306b\u3002<\/p>\n

\n

# Attribute pct total min max avg 95% stddev median
\n# ============ === ======= ======= ======= ======= ======= ======= =======
\n# Count 0 13
\n# Exec time 0 35s 2s 5s 3s 4s 794ms 2s
\n# Lock time 0 2ms 50us 285us 117us 167us 54us 105us
\n# Rows sent 0 10 0 1 0.77 0.99 0.42 0.99
\n# Rows examine 0 10 0 1 0.77 0.99 0.42 0.99
\n# Query size 0 1.14k 77 102 89.46 97.36 5.68 88.31
\n# Row ratio 0 351.71k 7.38k 53.19k 27.05k 44.45k 12.31k 24.16k\u3000\u2605\u8ffd\u52a0\u5206\u2605<\/p>\n<\/div>\n

 <\/p>\n

\u3053\u308c\u306fMySQL\u306e\u30b9\u30ed\u30fc\u30af\u30a8\u30ea\u30ed\u30b0\u3067\u3059\u304c\u3001Percona Sever\u306e\u30b9\u30ed\u30fc\u30af\u30a8\u30ea\u30ed\u30b0\u306f\u66f4\u306b\u591a\u304f\u306e\u60c5\u5831\u304c\u6b8b\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u4f5c\u308a\u304c\u3044\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n

–review\u30aa\u30d7\u30b7\u30e7\u30f3<\/span><\/h3>\n

\u3044\u3064\u304b\u3089\u304b\u3053\u3093\u306a\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n

\n

# pt-query-digest –review h=localhost,u=root –no-report slow.log<\/p>\n

\uff1a<\/p>\n

mysql> use percona_schema;<\/p>\n

Database changed
\nmysql> show tables;
\n+————————–+
\n| Tables_in_percona_schema |
\n+————————–+
\n| query_review |
\n+————————–+
\n1 rows in set (0.01 sec)<\/p>\n

–review\u30aa\u30d7\u30b7\u30e7\u30f3\u4ed8\u304d\u3067\u30af\u30a8\u30ea\u3092\u89e3\u6790\u306b\u304b\u3051\u308b\u3068\u3001DSN\u3067\u6307\u5b9a\u3057\u305fMySQL\u306b\u30c7\u30fc\u30bf\u304c\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002
\n\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u3053\u3093\u306a\u30c7\u30fc\u30bf\u304c\u5165\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

 <\/p>\n

*************************** 8. row ***************************
\nchecksum: 8858001711021306865
\nfingerprint: select option_value from XXXX where opt_name = ? limit ?
\nsample: SELECT option_value FROM XXXX WHERE opt_name = ‘categories’ LIMIT 1
\nfirst_seen: 2013-09-22 09:11:06
\nlast_seen: 2014-09-13 23:53:06
\nreviewed_by: NULL
\nreviewed_on: NULL
\ncomments: NULL
\n8 rows in set (0.00 sec)<\/p>\n

\u3053\u3053\u3067\u3053\u306e\u30af\u30a8\u30ea\u306f\u78ba\u8a8d\u6e08\u307f\u306b\u306a\u3063\u305f\u306e\u3067\u3001\u6b21\u304b\u3089\u30ec\u30dd\u30fc\u30c8\u306b\u306f\u51fa\u529b\u3055\u305b\u305f\u304f\u306a\u3044\u3068\u3057\u307e\u3059\u3002<\/p>\n

mysql> update query_review set reviewed_by=”yorozuyah”,reviewed_on = now() where checksum=8858001711021306865;<\/p>\n

\u66f4\u65b0\u3057\u305f\u65e8UPDATE\u3092\u3057\u3066\u3001\u304b\u3089–review\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u4f7f\u3063\u3066\u30ec\u30dd\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u3068\u3001\u6b21\u306e\u30ec\u30dd\u30fc\u30c8\u304b\u3089\u306f\u5bfe\u8c61\u306e\u30af\u30a8\u30ea\u304c\u6319\u304c\u3063\u3066\u3053\u306a\u304f\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n

# pt-query-digest –review h=localhost,u=root –type slowlog XXXX-slow.log<\/p>\n<\/div>\n

\u904b\u7528\u4e0a\u5b9a\u671f\u7684\u306b\u3001\u89e3\u6790\u7d50\u679c\u3092\u51fa\u3057\u3066\u78ba\u8a8d\u3057\u3066\u3044\u305f\u308a\u3001\u958b\u767a\u4e2d\u306b\u30af\u30a8\u30ea\u30921\u3064\u305a\u3064\u6f70\u3057\u3066\u3044\u308b\u3088\u3046\u306a\u6642\u306b\u4f7f\u3048\u305d\u3046\u3067\u3059\u3002<\/p>\n

–history\u30aa\u30d7\u30b7\u30e7\u30f3<\/span><\/h3>\n

review\u3068\u4f3c\u305f\u3088\u3046\u306a\u6a5f\u80fd\u3068\u3057\u3066\u3001history\u3068\u3044\u3046\u6a5f\u80fd\u304c\u5897\u3048\u3066\u307e\u3059\u3002
\n\u5f8c\u304b\u3089\u632f\u308a\u8fd4\u3063\u3066\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u306a\u3069\u3001\u4f7f\u3044\u9053\u306f\u3044\u308d\u3044\u308d\u3042\u308a\u305d\u3046\u3067\u3059\u3002<\/p>\n

# pt-query-digest –history h=localhost,u=root –no-report XXXX-slow.log
\n\uff1a
\n\uff1a
\nmysql> show tables;
\n+————————–+
\n| Tables_in_percona_schema |
\n+————————–+
\n| query_history |
\n| query_review |
\n+————————–+
\n2 rows in set (0.01 sec)<\/div>\n
<\/div>\n
*************************** 8. row ***************************
\nchecksum: 8858001711021306865
\nsample: SELECT option_value FROM XXXX WHERE opt_name = ‘categories’ LIMIT 1
\nts_min: 2013-09-22 09:11:06
\nts_max: 2014-09-13 23:53:06
\nts_cnt: 13
\nQuery_time_sum: 35.2736
\nQuery_time_min: 2.05142
\nQuery_time_max: 4.97518
\nQuery_time_pct_95: 3.52771
\nQuery_time_stddev: 0.794433
\nQuery_time_median: 2.45322
\nLock_time_sum: 0.00153
\nLock_time_min: 0.00005
\nLock_time_max: 0.000285
\nLock_time_pct_95: 0.000167833
\nLock_time_stddev: 0.0000546159
\nLock_time_median: 0.000105611
\nRows_sent_sum: 10
\nRows_sent_min: 0
\nRows_sent_max: 1
\nRows_sent_pct_95: 0.992137
\nRows_sent_stddev: 0.418012
\nRows_sent_median: 0.992137
\nRows_examined_sum: 10
\nRows_examined_min: 0
\nRows_examined_max: 1
\nRows_examined_pct_95: 0.992137
\nRows_examined_stddev: 0.418012
\nRows_examined_median: 0.992137
\nRows_affected_sum: NULL
\nRows_affected_min: NULL
\nRows_affected_max: NULL
\nRows_affected_pct_95: NULL
\nRows_affected_stddev: NULL
\nRows_affected_median: NULL
\nRows_read_sum: NULL
\nRows_read_min: NULL
\nRows_read_max: NULL
\nRows_read_pct_95: NULL
\nRows_read_stddev: NULL
\nRows_read_median: NULL
\nMerge_passes_sum: NULL
\nMerge_passes_min: NULL
\nMerge_passes_max: NULL
\nMerge_passes_pct_95: NULL
\nMerge_passes_stddev: NULL
\nMerge_passes_median: NULL
\nInnoDB_IO_r_ops_min: NULL
\nInnoDB_IO_r_ops_max: NULL
\nInnoDB_IO_r_ops_pct_95: NULL
\nInnoDB_IO_r_ops_stddev: NULL
\nInnoDB_IO_r_ops_median: NULL
\nInnoDB_IO_r_bytes_min: NULL
\nInnoDB_IO_r_bytes_max: NULL
\nInnoDB_IO_r_bytes_pct_95: NULL
\nInnoDB_IO_r_bytes_stddev: NULL
\nInnoDB_IO_r_bytes_median: NULL
\nInnoDB_IO_r_wait_min: NULL
\nInnoDB_IO_r_wait_max: NULL
\nInnoDB_IO_r_wait_pct_95: NULL
\nInnoDB_IO_r_wait_stddev: NULL
\nInnoDB_IO_r_wait_median: NULL
\nInnoDB_rec_lock_wait_min: NULL
\nInnoDB_rec_lock_wait_max: NULL
\nInnoDB_rec_lock_wait_pct_95: NULL
\nInnoDB_rec_lock_wait_stddev: NULL
\nInnoDB_rec_lock_wait_median: NULL
\nInnoDB_queue_wait_min: NULL
\nInnoDB_queue_wait_max: NULL
\nInnoDB_queue_wait_pct_95: NULL
\nInnoDB_queue_wait_stddev: NULL
\nInnoDB_queue_wait_median: NULL
\nInnoDB_pages_distinct_min: NULL
\nInnoDB_pages_distinct_max: NULL
\nInnoDB_pages_distinct_pct_95: NULL
\nInnoDB_pages_distinct_stddev: NULL
\nInnoDB_pages_distinct_median: NULL
\nQC_Hit_cnt: NULL
\nQC_Hit_sum: NULL
\nFull_scan_cnt: NULL
\nFull_scan_sum: NULL
\nFull_join_cnt: NULL
\nFull_join_sum: NULL
\nTmp_table_cnt: NULL
\nTmp_table_sum: NULL
\nTmp_table_on_disk_cnt: NULL
\nTmp_table_on_disk_sum: NULL
\nFilesort_cnt: NULL
\nFilesort_sum: NULL
\nFilesort_on_disk_cnt: NULL
\nFilesort_on_disk_sum: NULL
\n8 rows in set (0.00 sec)<\/div>\n

\u307e\u3060\u307e\u3060\u5c3d\u304d\u307e\u305b\u3093\u304c\u4e3b\u8981\u306a\u90e8\u5206\u306f\u3053\u3093\u306a\u3068\u3053\u308d\u3067\u3057\u3087\u3046\u304b\u30fb\u30fb\u30fb
\n\u307e\u305f\u968f\u6642\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u30d6\u30ed\u30b0\u66f4\u65b0\u3092\u304b\u306a\u308a\u3055\u307c\u3063\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u3061\u3087\u3063\u3068\u305a\u3064\u66f4\u65b0\u3092\u518d\u958b\u3057\u307e\u3059\u3002 \u4e45\u3057\u3076\u308a\u306e\u30dd\u30b9\u30c8\u3067\u3059\u304cPercona\u793e\u306eMySQL\u95a2\u9023\u304a\u5f79\u7acb\u3061\u30c4\u30fc\u30ebPercona Toolkit\u306e\u4e2d\u3067\u3082\u4e00\u756a\u3001\u4f7f\u3048\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u601d\u3063\u3066\u308bpt-q… <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[24,22],"tags":[32],"_links":{"self":[{"href":"https:\/\/a23187.yorozuyah.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1615"}],"collection":[{"href":"https:\/\/a23187.yorozuyah.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/a23187.yorozuyah.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/a23187.yorozuyah.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/a23187.yorozuyah.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1615"}],"version-history":[{"count":38,"href":"https:\/\/a23187.yorozuyah.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1615\/revisions"}],"predecessor-version":[{"id":1653,"href":"https:\/\/a23187.yorozuyah.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1615\/revisions\/1653"}],"wp:attachment":[{"href":"https:\/\/a23187.yorozuyah.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1615"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/a23187.yorozuyah.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1615"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/a23187.yorozuyah.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1615"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}