{"id":3814,"date":"2012-06-09T21:29:01","date_gmt":"2012-06-09T13:29:01","guid":{"rendered":"http:\/\/www.orczhou.com\/?p=3814"},"modified":"2026-01-29T14:22:37","modified_gmt":"2026-01-29T06:22:37","slug":"mysql-troubleshooting-with-pt-stakl","status":"publish","type":"post","link":"https:\/\/www.orczhou.com\/index.php\/2012\/06\/mysql-troubleshooting-with-pt-stakl\/","title":{"rendered":"\u4f7f\u7528pt-stalk\u8bca\u65adMySQL\u95ee\u9898"},"content":{"rendered":"\n\n\n\n

\u5728MySQL\u670d\u52a1\u5668\u51fa\u73b0\u77ed\u6682(5~30\u79d2)\u7684\u6027\u80fd\u6ce2\u52a8\u7684\u65f6\u5019\uff0c\u4e00\u822c\u7684\u6027\u80fd\u76d1\u63a7\u5de5\u5177\u90fd\u5f88\u96be\u6293\u4f4f\u6545\u969c\u73b0\u573a\uff0c\u4e5f\u5c31\u5f88\u96be\u6536\u96c6\u5bf9\u5e94\u8f83\u7ec6\u7c92\u5ea6\u7684\u8bca\u65ad\u4fe1\u606f\u3002\u53e6\u5916\uff0c\u5982\u679c\u8fd9\u79cd\u6ce2\u52a8\u51fa\u73b0\u7684\u9891\u7387\u5f88\u4f4e\uff0c\u4f8b\u5982\u51e0\u5929\u624d\u4e00\u6b21\uff0c\u6211\u4eec\u4e5f\u5f88\u96be\u4eba\u4e3a\u7684\u6293\u4f4f\u73b0\u573a\uff0c\u6536\u96c6\u6570\u636e\u3002\u8fd9\u6b63\u662fpt-stalk\u6240\u89e3\u51b3\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n

pt-stalk\u662fPercona-Toolkit<\/a>\u7684\u4e00\u90e8\u5206(\u5176\u524d\u8eab\u662fAspersa<\/a>\u7684\u4e00\u90e8\u5206)\u3002\u5b89\u88c5Percona-Toolkit\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7man pt-stalk\u4e86\u89e3\u5982\u4f55\u4f7f\u7528\u8be5\u5de5\u5177\uff0c\u672c\u6587\u7684\u4ecb\u7ecd\u662fman pt-stalk\u7684\u4e00\u4e2a\u5b50\u96c6\uff0c\u5f3a\u70c8\u5efa\u8bae\u76f4\u63a5\u9605\u8bfbman pt-stalk\u3002\u989d\u5916\u7684\uff0c\u672c\u6587\u5c06\u63d0\u4f9bpt-stalk\u793a\u4f8b\u547d\u4ee4\u53ef\u4f9b\u53c2\u8003\u3002<\/p>\n\n\n\n

1. \u4f7f\u7528pt-stalk<\/h3>\n\n\n\n
pt-stalk --collect-tcpdump --function status \\\n--variable Threads_connected --threshold 2500 \\\n--daemonize -- --user=root --password=YOURPASSWORD<\/code><\/pre>\n\n\n\n
\u4e0a\u9762\u7684\u547d\u4ee4\u8868\u793a\uff0c\u8ba9pt-stalk\u540e\u53f0\u8fd0\u884c(–daemonize)\uff0c\u5e76\u76d1\u89c6SHOW GLOBAL STATUS\u4e2d\u7684Threads_connected\u72b6\u6001\u503c\uff0c\u5982\u679c\u8be5\u503c\u8d85\u8fc72500\uff0c\u5219\u89e6\u53d1\u6536\u96c6\u4e3b\u673a\u548cMySQL\u7684\u6027\u80fd\u3001\u72b6\u6001\u4fe1\u606f\u3002pt-stalk\u4f1a\u6bcf\u9694\u4e00\u79d2\u68c0\u67e5\u4e00\u6b21\u72b6\u6001\u503c\uff0c\u5982\u679c\u8fde\u7eed5\u6b21\u6ee1\u8db3\u89e6\u53d1\u6761\u4ef6\uff0c\u5219\u5f00\u59cb\u6536\u96c6\u3002<\/p>\n\n\n\n
–collect-tcpdump\u8868\u793a\u9664\u4e86\u6536\u96c6\u57fa\u672c\u4fe1\u606f\u5916\uff0c\u8fd8\u5c06\u989d\u5916\u4f7f\u7528tcpdump\u6536\u96c6\u5f53\u65f6\u7684\u7f51\u7edc\u5305\uff0c\u7c7b\u4f3c\u7684\u8fd8\u53ef\u4ee5\u4f7f\u7528–collect-gdb\u7b49\u3002
<\/p>\n\n\n\n\n\n\n\n
2. pt-stalk\u5982\u4f55\u8fde\u63a5MySQL<\/h3>\n\n\n\n
\u5728\u4e0a\u9762\u7684\u547d\u4ee4\u4e2d\u53c2\u6570\uff0c”– –user=root –password=YOURPASSWORD”\u8868\u793a\uff0c\u5c06\u4f7f\u7528”–“\u540e\u9762\u7684\u6240\u6709\u53c2\u6570\u7528\u4e8emysql\u548cmysqladmin\u547d\u4ee4\uff0c\u6240\u4ee5\u8fd9\u91cc\u786e\u4fdd\u4f60\u7ed9\u51fa\u6b63\u786e\u7684\u7528\u6237\u540d\u548c\u5bc6\u7801\u3002\u4e0b\u9762\u662fman pt-stalk\u4e2d\u7ed9\u51fa\u7684\u8bed\u6cd5\uff1a<\/p>\n\n\n\n
SYNOPSIS<br>Usage: pt-stalk [OPTIONS] [-- MYSQL OPTIONS]<\/code><\/pre>\n\n\n\n
\u770b\u5230\u524d\u9762\u7684[OPTIONS]\u662fpt-stalk\u4f7f\u7528\u7684\u53c2\u6570\uff0c[– MYSQL OPTIONS]\u662fmysql\u548cmysqladmin\u4f7f\u7528\u7684\u53c2\u6570\u3002<\/p>\n\n\n\n
3. pt-stalk\u7684\u5de5\u4f5c\u72b6\u6001<\/h3>\n\n\n\n
pt-stalk\u662f\u4e00\u4e2a\u540e\u53f0\u7a0b\u5e8f\uff0c\u9ed8\u8ba4\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u6587\u4ef6\/var\/log\/pt-stalk.log\uff0c\u67e5\u770bpt-stalk\u7684\u8fd0\u884c\u72b6\u6001\uff1a<\/p>\n\n\n\n
tail -f \/var\/log\/pt-stalk.log\n2012_06_05_00_00_35 Check results: Threads_connected=1641, matched=no\n2012_06_05_00_00_36 Check results: Threads_connected=1641, matched=no\n2012_06_05_00_00_37 Check results: Threads_connected=1641, matched=no\n2012_06_05_00_00_38 Check results: Threads_connected=1641, matched=no\n2012_06_05_00_00_39 Check results: Threads_connected=1641, matched=no\n2012_06_05_00_00_40 Check results: Threads_connected=1641, matched=no\n2012_06_05_00_00_41 Check results: Threads_connected=1641, matched=no<\/code><\/pre>\n\n\n\n
\u4f60\u8fd8\u53ef\u4ee5\u901a\u8fc7\u53c2\u6570–log\u6307\u5b9a\u4e00\u4e2a\u4f60\u5e0c\u671b\u7684log\u76ee\u5f55\u548c\u6587\u4ef6\u3002<\/p>\n\n\n\n
4. pt-stalk\u6536\u96c6\u7684\u6027\u80fd\u548c\u72b6\u6001\u6570\u636e<\/h4>\n\n\n\n
\u9ed8\u8ba4pt-stalk\u5c06\u6536\u96c6\u7684\u6570\u636e\u653e\u5728\u76ee\u5f55\/var\/lib\/pt-stalk\u4e0b\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u53c2\u6570–dest\u6307\u5b9a\u4f60\u5e0c\u671b\u7684\u76ee\u5f55\u3002\u4e0b\u9762\u662f\u4e00\u4e2apt-stalk\u89e6\u53d1\u6536\u96c6\u540e\u7684\u6570\u636e\u6587\u4ef6\uff1a<\/p>\n\n\n\n
\"pt-stalk\u6570\u636e\"\/<\/a><\/figure>\n\n\n\n
\u8fd9\u4e9b\u6570\u636e\u90fd\u662f\u539f\u59cb\u6570\u636e\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u8fd9\u4e9b\u6765\u5206\u6790\u5f53\u65f6MySQL\u6216\u8005\u4e3b\u673a\u662f\u5426\u6709\u5f02\u5e38\u3002<\/p>\n\n\n\n
5. pt-stalk\u7684\u89e6\u53d1\u6761\u4ef6<\/h3>\n\n\n\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\u89e6\u53d1\u53c2\u6570\u662f\uff1a”–function status –variable Threads_connected –threshold 2500″\uff0c\u8868\u793aMySQL\u72b6\u6001\u503cThreads_connected\u8d85\u8fc72500\u65f6\u89e6\u53d1\u6570\u636e\u6536\u96c6\u3002\u5e38\u7528\u7684\u89e6\u53d1\u6761\u4ef6\u8fd8\u53ef\u4ee5\u4f7f\u7528Threads_running\u7b49\u3002<\/p>\n\n\n\n
\u53e6\u5916\u8fd8\u53ef\u4ee5\u4f7f\u7528SHOW PROCESSLIST\u7684\u4e2d\u7684\u7ed3\u679c\u89e6\u53d1\uff0c\u4f8b\u5982”–function processlist –variable State –match statistics –threshold 10″\u8868\u793a\uff0cshow processlist\u4e2dState\u5217\u7684\u503c\u4e3astatistics\u7684\u7ebf\u7a0b\u6570\u8d85\u8fc710\u5219\u89e6\u53d1\u6536\u96c6\u3002<\/p>\n\n\n\n
6. \u4e00\u4e9b\u5176\u4ed6\u6709\u7528\u7684\u53c2\u6570<\/h3>\n\n\n\n
–iterations\uff1a\u8be5\u53c2\u6570\u6307\u5b9apt-stalk\u5728\u6536\u96c6\u51e0\u6b21\u6545\u969c\u73b0\u573a\u540e\u5c31\u9000\u51fa\u3002\u9ed8\u8ba4pt-stalk\u4f1a\u4e00\u76f4\u8fd0\u884c<\/p>\n\n\n\n
–run-time\uff1a\u89e6\u53d1\u6536\u96c6\u540e\uff0c\u8be5\u53c2\u6570\u6307\u5b9a\u6536\u96c6\u591a\u957f\u65f6\u95f4<\/strong>\u7684\u6570\u636e\u3002\u9ed8\u8ba4\u662f30\u79d2<\/p>\n\n\n\n
–sleep\uff1a\u4e3a\u9632\u6b62\u4e00\u76f4\u89e6\u53d1\u6536\u96c6\u6570\u636e\uff0c\u8be5\u53c2\u6570\u6307\u5b9a\u5728\u67d0\u6b21\u89e6\u53d1\u540e\uff0c\u5fc5\u987bsleep\u4e00\u6bb5\u65f6\u5019\u624d\u7ee7\u7eed\u89c2\u5bdf\u5e76\u89e6\u53d1\u6536\u96c6\u3002\u9ed8\u8ba4\u662f300\u79d2<\/p>\n\n\n\n
–interval\uff1a\u9ed8\u8ba4\u60c5\u51b5pt-stalk\u4f1a\u6bcf\u9694\u4e00\u79d2\u68c0\u67e5\u4e00\u6b21\u72b6\u6001\u6570\u636e\uff0c\u5224\u65ad\u662f\u5426\u9700\u8981\u89e6\u53d1\u6536\u96c6\u3002\u8be5\u53c2\u6570\u6307\u5b9a\u95f4\u9694\u65f6\u95f4\uff0c\u9ed8\u8ba4\u662f1\u79d2\u3002<\/p>\n\n\n\n
–cycles\uff1a\u9ed8\u8ba4\u60c5\u51b5pt-stalk\u53ea\u6709\u8fde\u7eed\u89c2\u5bdf\u5230\u4e94\u6b21\u72b6\u6001\u503c\u6ee1\u8db3\u89e6\u53d1\u6761\u4ef6\u65f6\uff0c\u624d\u89e6\u53d1\u6536\u96c6\u3002\u8be5\u53c2\u6570\u63a7\u5236\uff0c\u9700\u8981\u8fde\u7eed\u51e0\u6b21\u6ee1\u8db3\u6761\u4ef6\uff0c\u6536\u96c6\u88ab\u89e6\u53d1\uff0c\u9ed8\u8ba4\u662f5\u6b21\u3002<\/p>\n\n\n\n
<\/p>\n\n\n\n
\u53c2\u8003\u6587\u732e\uff1a<\/strong>man pt-stalk;man percona-toolkit<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728MySQL\u670d\u52a1\u5668\u51fa\u73b0\u77ed\u6682(5~30\u79d2)\u7684\u6027\u80fd\u6ce2\u52a8\u7684\u65f6\u5019\uff0c\u4e00\u822c\u7684\u6027\u80fd\u76d1\u63a7\u5de5\u5177\u90fd\u5f88\u96be\u6293\u4f4f\u6545\u969c\u73b0\u573a\uff0c\u4e5f\u5c31\u5f88\u96be\u6536\u96c6\u5bf9\u5e94\u8f83\u7ec6\u7c92\u5ea6\u7684\u8bca\u65ad\u4fe1\u606f\u3002\u53e6\u5916\uff0c\u5982\u679c\u8fd9\u79cd\u6ce2\u52a8\u51fa\u73b0\u7684\u9891\u7387\u5f88\u4f4e\uff0c\u4f8b\u5982\u51e0\u5929\u624d\u4e00\u6b21\uff0c\u6211\u4eec\u4e5f\u5f88\u96be\u4eba\u4e3a\u7684\u6293\u4f4f\u73b0\u573a\uff0c\u6536\u96c6\u6570\u636e\u3002\u8fd9\u6b63\u662fpt-stalk\u6240\u89e3\u51b3\u7684\u95ee\u9898\u3002 pt-stalk\u662fPercona-Toolkit\u7684\u4e00\u90e8\u5206(\u5176\u524d\u8eab\u662fAspersa\u7684\u4e00\u90e8\u5206)\u3002\u5b89\u88c5Percona-Toolkit\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7man pt-stalk\u4e86\u89e3\u5982\u4f55\u4f7f\u7528\u8be5\u5de5\u5177\uff0c\u672c\u6587\u7684\u4ecb\u7ecd\u662fman pt-stalk\u7684\u4e00\u4e2a\u5b50\u96c6\uff0c\u5f3a\u70c8\u5efa\u8bae\u76f4\u63a5\u9605\u8bfbman pt-stalk\u3002\u989d\u5916\u7684\uff0c\u672c\u6587\u5c06\u63d0\u4f9bpt-stalk\u793a\u4f8b\u547d\u4ee4\u53ef\u4f9b\u53c2\u8003\u3002 1. \u4f7f\u7528pt-stalk \u4e0a\u9762\u7684\u547d\u4ee4\u8868\u793a\uff0c\u8ba9pt-stalk\u540e\u53f0\u8fd0\u884c(–daemonize)\uff0c\u5e76\u76d1\u89c6SHOW GLOBAL STATUS\u4e2d\u7684Threads_connected\u72b6\u6001\u503c\uff0c\u5982\u679c\u8be5\u503c\u8d85\u8fc72500\uff0c\u5219\u89e6\u53d1\u6536\u96c6\u4e3b\u673a\u548cMySQL\u7684\u6027\u80fd\u3001\u72b6\u6001\u4fe1\u606f\u3002pt-stalk\u4f1a\u6bcf\u9694\u4e00\u79d2\u68c0\u67e5\u4e00\u6b21\u72b6\u6001\u503c\uff0c\u5982\u679c\u8fde\u7eed5\u6b21\u6ee1\u8db3\u89e6\u53d1\u6761\u4ef6\uff0c\u5219\u5f00\u59cb\u6536\u96c6\u3002 –collect-tcpdump\u8868\u793a\u9664\u4e86\u6536\u96c6\u57fa\u672c\u4fe1\u606f\u5916\uff0c\u8fd8\u5c06\u989d\u5916\u4f7f\u7528tcpdump\u6536\u96c6\u5f53\u65f6\u7684\u7f51\u7edc\u5305\uff0c\u7c7b\u4f3c\u7684\u8fd8\u53ef\u4ee5\u4f7f\u7528–collect-gdb\u7b49\u3002<\/p>\n","protected":false},"author":2,"featured_media":23085,"comment_status":"open","ping_status":"open","sticky":false,"template":"wp-custom-template-a-1440-px-width-template","format":"standard","meta":{"_eb_attr":"","inline_featured_image":false,"_tocer_settings":[],"footnotes":""},"categories":[6,4],"tags":[118,97,96],"class_list":["post-3814","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mysql","category-code-detail","tag-mysql","tag-percona","tag-troubleshooting"],"_links":{"self":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts\/3814","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/comments?post=3814"}],"version-history":[{"count":15,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts\/3814\/revisions"}],"predecessor-version":[{"id":23087,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts\/3814\/revisions\/23087"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/media\/23085"}],"wp:attachment":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/media?parent=3814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/categories?post=3814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/tags?post=3814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}