{"id":2557,"date":"2017-08-04T09:33:17","date_gmt":"2017-08-04T01:33:17","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=2557"},"modified":"2017-08-04T09:33:17","modified_gmt":"2017-08-04T01:33:17","slug":"mariadb%e6%80%a7%e8%83%bd%e8%b0%83%e4%bc%98%e5%b7%a5%e5%85%b7mytop%e7%9a%84%e4%bd%bf%e7%94%a8%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/shujuku\/mariadb%e6%80%a7%e8%83%bd%e8%b0%83%e4%bc%98%e5%b7%a5%e5%85%b7mytop%e7%9a%84%e4%bd%bf%e7%94%a8%e8%af%a6%e8%a7%a3\/","title":{"rendered":"MariaDB\u6027\u80fd\u8c03\u4f18\u5de5\u5177mytop\u7684\u4f7f\u7528\u8be6\u89e3"},"content":{"rendered":"

\u524d\u8a00<\/strong><\/p>\n

mytop\u4e3aMariaDB\u81ea\u5e26\u5de5\u5177\uff0c\u4f46MySQL\u5e76\u6ca1\u6709\u643a\u5e26\u8be5\u5de5\u5177\uff0c\u9700\u8981\u81ea\u884c\u5b89\u88c5\u3002\u5b89\u88c5\u65b9\u5f0f\u8bf7\u81ea\u884cgoogle==<\/p>\n

\u4f7f\u7528\u65b9\u5f0f<\/strong><\/p>\n

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?<\/a><\/div>\n\n\n\n
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1<\/div>\n<\/td>\n
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.\/mytop --prompt -u xxx -h xxx -P xxx -d xxx<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n

\u7ed3\u679c\u89e3\u91ca<\/strong><\/p>\n

\u5e38\u7528\u7ed3\u679c\u5c55\u793a<\/strong><\/p>\n

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?<\/a><\/div>\n\n\n\n
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MariaDB <\/code>on<\/code> localhost (10.1.18-MariaDB)\u00a0\u00a0\u00a0\u00a0\u00a0 up 77+08:53:14 [20:08:00]<\/code><\/div>\n
Queries: 17.6G qps: 2833 Slow: 106.7k\u00a0\u00a0 Se\/<\/code>In<\/code>\/Up\/De(%): 48\/07\/11\/00<\/code><\/div>\n
Sorts: 380 qps now: 3196 Slow qps: 0.2 Threads: 199 ( 3\/ 102) 52\/05\/12\/00<\/code><\/div>\n
Handler: (R\/W\/U\/D) 9372\/ 5371\/ 709\/ 0\u00a0 Tmp: R\/W\/U: 297\/ 278\/ 0<\/code><\/div>\n
ISAM <\/code>Key<\/code> Efficiency: 99.7% Bps <\/code>in<\/code>\/<\/code>out<\/code>: 586.6k\/ 2.1M Now <\/code>in<\/code>\/<\/code>out<\/code>: 521.9k\/ 1.8M<\/code><\/div>\n
Replication IO:<\/code>No<\/code> SQL:<\/code>No<\/code><\/div>\n
\u00a0\u00a0<\/code>Id\u00a0 <\/code>User<\/code>\u00a0\u00a0 Host\/IP\u00a0\u00a0 DB\u00a0 <\/code>Time<\/code> Cmd Query <\/code>or<\/code> State<\/code><\/div>\n
\u00a0\u00a0<\/code>--\u00a0 ----\u00a0\u00a0 -------\u00a0\u00a0 --\u00a0 ---- --- ----------<\/code><\/div>\n
\u00a0\u00a0<\/code>2\u00a0 root\u00a0 localhost\u00a0 mysql\u00a0\u00a0 0 Query show <\/code>full<\/code> processlist\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/code><\/div>\n
\u00a0\u00a0<\/code>16\u00a0 root\u00a0 localhost\u00a0\u00a0\u00a0\u00a0 0 Sleep<\/code><\/div>\n
\u00a0\u00a0<\/code>17\u00a0 root\u00a0 localhost\u00a0 testdb\u00a0\u00a0 0 Query <\/code>SELECT<\/code> * <\/code>FROM<\/code> dept_emp<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n

\u7b2c\u4e00\u884c\uff1aMariaDB\u7248\u672c\uff1b\u6570\u636e\u5e93\u8fd0\u884c\u65f6\u95f4\uff1b<\/p>\n

\u7b2c\u4e8c\u884c\uff1aQueries\u4e3a\u6570\u636e\u5e93\u542f\u52a8\u4e4b\u540e\u5904\u7406\u7684\u603bqueries\uff1bqps:\u6570\u636e\u5e93\u542f\u52a8\u4e4b\u540e\u5e73\u5747\u7684qps\uff1bSlow\uff1a\u6570\u636e\u5e93\u542f\u52a8\u4e4b\u540e\u7684\u6162\u67e5\u8be2\u603b\u6570\uff1bSe\/In\/Up\/De(%): SELECT\/INSERT\/UPDATE\/DELETE\u6240\u5360\u7684\u6bd4\u4f8b\uff1b<\/p>\n

\u7b2c\u4e09\u884c\uff1aSorts\uff1a\u6ca1\u770b\u660e\u767d\uff1bqps now:\u81eamytop\u4e0a\u6b21\u5237\u65b0\u540e\u7684\u5e73\u5747qps\uff1bSlow qps: \u81eamytop\u4e0a\u6b21\u5237\u65b0\u540e\u7684\u5e73\u5747\u6162\u67e5\u8be2qps\uff1bThreads: \u8fde\u63a5\u6570\u636e\u5e93\u7ebf\u7a0b\u603b\u6570(\u6d3b\u8dc3\u7684\u7ebf\u7a0b\u6570\/SLEEP\u72b6\u6001\u7684\u7ebf\u7a0b\u6570)\uff1b52\/05\/12\/00\uff1a\u81eamytop\u4e0a\u6b21\u5237\u65b0\u540eSELECT\/INSERT\/UPDATE\/DELTE\u7684\u6bd4\u4f8b\uff1b<\/p>\n

\u7b2c\u56db\u884c\uff1a\u4e2a\u4eba\u76ee\u524d\u6ca1\u6709\u770b\u660e\u767d\uff0c\u4e5f\u6ca1\u6709\u627e\u5230\u76f8\u5173\u7684\u63cf\u8ff0\uff1b<\/p>\n

\u7b2c\u4e94\u884c: ISAM Key Efficiency:myisam\u7684key buffer\u7684\u547d\u4e2d\u7387\uff0cBps\uff1a\u6570\u636e\u5e93\u542f\u52a8\u4e4b\u540e\u5e73\u5747\u7684\u7f51\u7edc\u6d41\u91cf\uff0cNow\uff1a\u81eamytop\u4e0a\u6b21\u5237\u65b0\u540e\u7684\u5e73\u5747\u7f51\u7edc\u6d41\u91cf\u3002\u200b<\/p>\n

\u5e38\u7528\u5feb\u6377\u952e<\/strong><\/p>\n

? \u663e\u793a\u5e2e\u52a9\u4fe1\u606f\u3002<\/p>\n

c \u547d\u4ee4\u7684\u603b\u7ed3\u89c6\u56fe(\u57fa\u4e8eCom_*\u7684\u7edf\u8ba1)\u3002<\/p>\n

C \u5173\u95ed\uff0f\u5f00\u542f\u989c\u8272\u6a21\u5f0f\u3002<\/p>\n

d \u4ec5\u4ec5\u663e\u793a\u6307\u5b9a\u7684\u6570\u636e\u5e93\u3002<\/p>\n

e \u5c06\u6307\u5b9a\u7684thread_id\u5bf9\u5e94\u7684query\u5728\u6570\u636e\u5e93\u4e0a\u7684explain\u7ed3\u679c\u5c55\u793a\u51fa\u6765\u3002<\/p>\n

E \u5c55\u793a\u5f53\u524d\u590d\u5236\u7684error\u4fe1\u606f\u3002<\/p>\n

f \u663e\u793a\u6307\u5b9aquery\u7684\u5b8c\u6574\u4fe1\u606f\u3002<\/p>\n

h \u663e\u793a\u6307\u5b9a\u7684host\u7684\u8fde\u63a5\u4fe1\u606f\u3002<\/p>\n

H \u53ea\u663e\u793amytop\u7684\u5934\u4fe1\u606f\u3002<\/p>\n

I show innodb status\u7684\u4fe1\u606f\u3002\uff08\u5927\u5199i\uff09<\/p>\n

k kill\u6307\u5b9a\u7684thread id\u3002<\/p>\n

p \u663e\u793a\u6682\u505c\u3002<\/p>\n

l \u9ad8\u4eae\u6162\u67e5\u8be2\u3002\uff08\u5c0f\u5199L\uff09<\/p>\n

m \u53ea\u5c55\u793aqps\u7684\u4fe1\u606f\u3002<\/p>\n

M \u663e\u793a\u72b6\u6001\u4fe1\u606f\u3002<\/p>\n

o \u53cd\u5e8f\u6392\u5e8f\u3002<\/p>\n

s \u663e\u793a\u4fe1\u606f\u7684refresh\u95f4\u9694\u3002<\/p>\n

u \u663e\u793a\u6307\u5b9a\u7528\u6237\u7684\u8fde\u63a5\u4fe1\u606f\u3002<\/p>\n

V show variables\u7684\u76f8\u5173\u4fe1\u606f\u3002\uff08\u5927\u5199v\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"

\u524d\u8a00 mytop\u4e3aMariaDB\u81ea\u5e26\u5de5\u5177\uff0c\u4f46MySQL\u5e76\u6ca1\u6709\u643a\u5e26\u8be5\u5de5\u5177\uff0c\u9700\u8981\u81ea\u884c\u5b89\u88c5\u3002\u5b89\u88c5\u65b9\u5f0f\u8bf7\u81ea\u884cgoogl … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[10],"tags":[745],"class_list":["post-2557","post","type-post","status-publish","format-standard","hentry","category-shujuku","tag-mariadb"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2557","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=2557"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2557\/revisions"}],"predecessor-version":[{"id":2558,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2557\/revisions\/2558"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=2557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=2557"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=2557"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}