{"id":441962,"date":"2025-09-27T12:54:49","date_gmt":"2025-09-27T04:54:49","guid":{"rendered":"https:\/\/www.idc.net\/help\/?p=441962"},"modified":"2025-09-27T12:54:49","modified_gmt":"2025-09-27T04:54:49","slug":"%e4%bd%bf%e7%94%a8mysql-show-processlist%e5%91%bd%e4%bb%a4%e4%bc%98%e5%8c%96%e9%a6%99%e6%b8%af%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%95%b0%e6%8d%ae%e5%ba%93%e6%80%a7%e8%83%bd","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/441962\/","title":{"rendered":"\u4f7f\u7528MySQL SHOW PROCESSLIST\u547d\u4ee4\u4f18\u5316\u9999\u6e2f\u670d\u52a1\u5668\u6570\u636e\u5e93\u6027\u80fd"},"content":{"rendered":"

\u5f15\u8a00<\/h2>\n

\u5728\u7ba1\u7406\u9999\u6e2f\u670d\u52a1\u5668\u4e0a\u7684MySQL\u6570\u636e\u5e93\u65f6\uff0c\u76d1\u63a7\u548c\u4f18\u5316\u6570\u636e\u5e93\u6027\u80fd\u662f\u786e\u4fdd\u7cfb\u7edf\u9ad8\u6548\u8fd0\u884c\u7684\u5173\u952e\u3002SHOW PROCESSLIST<\/code> \u547d\u4ee4\u662fMySQL\u4e2d\u4e00\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u7528\u4e8e\u67e5\u770b\u5f53\u524d\u8fd0\u884c\u7684\u7ebf\u7a0b\u548c\u67e5\u8be2\uff0c\u6709\u52a9\u4e8e\u8bc6\u522b\u6027\u80fd\u74f6\u9888\u548c\u89e3\u51b3\u8fde\u63a5\u95ee\u9898\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd SHOW PROCESSLIST<\/code> \u547d\u4ee4\u7684\u4f7f\u7528\u65b9\u6cd5\u3001\u8f93\u51fa\u89e3\u6790\u53ca\u5b9e\u9645\u5e94\u7528\uff0c\u91c7\u7528\u4e13\u4e1a\u7684IT\u8bed\u6c14\uff0c\u4e3a\u6280\u672f\u53d7\u4f17\u63d0\u4f9b\u51c6\u786e\u4e14\u5b9e\u7528\u7684\u6307\u5bfc\u3002\u5185\u5bb9\u7ecf\u8fc7SEO\u4f18\u5316\uff0c\u7ed3\u6784\u6e05\u6670\uff0c\u9002\u5408\u4e2d\u6587\u6280\u672f\u4eba\u7fa4\u7684\u9605\u8bfb\u4e60\u60ef\u3002<\/p>\n

\u4ec0\u4e48\u662fSHOW PROCESSLIST\u547d\u4ee4\uff1f<\/h2>\n

SHOW PROCESSLIST<\/code> \u662f\u4e00\u4e2aMySQL\u547d\u4ee4\uff0c\u7528\u4e8e\u663e\u793a\u670d\u52a1\u5668\u4e0a\u6b63\u5728\u8fd0\u884c\u7684\u7ebf\u7a0b\u4fe1\u606f\u3002\u5b83\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u4e86\u89e3\u5f53\u524d\u6570\u636e\u5e93\u7684\u6d3b\u52a8\u72b6\u6001\uff0c\u5305\u62ec\u6bcf\u4e2a\u7ebf\u7a0b\u7684\u6267\u884c\u65f6\u95f4\u3001\u72b6\u6001\u548c\u5177\u4f53\u67e5\u8be2\u3002\u7ed3\u5408 FULL<\/code> \u5173\u952e\u5b57\uff0cSHOW FULL PROCESSLIST<\/code> \u53ef\u663e\u793a\u5b8c\u6574\u7684\u67e5\u8be2\u8bed\u53e5\uff0c\u800c\u975e\u9ed8\u8ba4\u622a\u65ad\u7684100\u4e2a\u5b57\u7b26\u3002\u8fd9\u5bf9\u4e8e\u7ba1\u7406\u9999\u6e2f\u670d\u52a1\u5668\u4e0a\u7684\u6570\u636e\u5e93\u5c24\u4e3a\u91cd\u8981\uff0c\u5c24\u5176\u5728\u5904\u7406\u201ctoo many connections\u201d\u9519\u8bef\u6216\u4f18\u5316\u67e5\u8be2\u6027\u80fd\u65f6\u3002<\/p>\n

\u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528SHOW PROCESSLIST\uff1f<\/h2>\n

\u4f7f\u7528 SHOW PROCESSLIST<\/code> \u547d\u4ee4\uff0c\u60a8\u53ef\u4ee5\uff1a<\/p>\n

    \n
  • \u5b9e\u65f6\u76d1\u63a7\u6570\u636e\u5e93\u7ebf\u7a0b\u7684\u8fd0\u884c\u72b6\u6001\u3002<\/li>\n
  • \u8bc6\u522b\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u67e5\u8be2\uff0c\u4f18\u5316\u6570\u636e\u5e93\u6027\u80fd\u3002<\/li>\n
  • \u8bca\u65ad\u8fde\u63a5\u95ee\u9898\uff0c\u4f8b\u5982\u8fc7\u591a\u7684\u5e76\u53d1\u8fde\u63a5\u3002<\/li>\n
  • \u7ec8\u6b62\u5f02\u5e38\u7ebf\u7a0b\uff0c\u91ca\u653e\u9999\u6e2f\u670d\u52a1\u5668\u8d44\u6e90\u3002<\/li>\n<\/ul>\n

    SHOW PROCESSLIST\u547d\u4ee4\u8be6\u89e3<\/h2>\n

    \u57fa\u672c\u8bed\u6cd5<\/h3>\n

    \u8fd0\u884c SHOW PROCESSLIST<\/code> \u6216 SHOW FULL PROCESSLIST<\/code> \u547d\u4ee4\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

    mysql> SHOW PROCESSLIST;\r\nmysql> SHOW FULL PROCESSLIST;\r\n<\/code><\/pre>\n
      \n
    • \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cSHOW PROCESSLIST<\/code> \u663e\u793a\u7b80\u5316\u7684\u7ebf\u7a0b\u4fe1\u606f\u3002<\/li>\n
    • \u4f7f\u7528 FULL<\/code> \u5173\u952e\u5b57\u53ef\u663e\u793a\u5b8c\u6574\u7684\u67e5\u8be2\u8bed\u53e5\u3002<\/li>\n<\/ul>\n
      \u8f93\u51fa\u5b57\u6bb5\u89e3\u6790<\/h3>\n
      SHOW PROCESSLIST<\/code> \u7684\u8f93\u51fa\u5305\u542b\u4ee5\u4e0b\u5173\u952e\u5b57\u6bb5\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
      \u5b57\u6bb5<\/th>\n\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n
      Id<\/td>\n\u7ebf\u7a0b\u7684\u552f\u4e00\u6807\u8bc6\u7b26\uff0c\u4e0e INFORMATION_SCHEMA.PROCESSLIST<\/code> \u8868\u4e2d\u7684 PROCESSLIST_ID<\/code> \u5bf9\u5e94\u3002<\/td>\n<\/tr>\n
      User<\/td>\n\u6267\u884c\u67e5\u8be2\u7684MySQL\u7528\u6237\uff0csystem user<\/code> \u8868\u793a\u670d\u52a1\u5668\u5185\u90e8\u7ebf\u7a0b\u3002<\/td>\n<\/tr>\n
      Host<\/td>\n\u5ba2\u6237\u7aef\u7684\u4e3b\u673a\u540d\u548c\u7aef\u53e3\uff0c\u683c\u5f0f\u4e3a host_name:client_port<\/code>\u3002<\/td>\n<\/tr>\n
      DB<\/td>\n\u7ebf\u7a0b\u4f7f\u7528\u7684\u9ed8\u8ba4\u6570\u636e\u5e93\uff0c\u82e5\u672a\u9009\u62e9\u5219\u4e3a NULL<\/code>\u3002<\/td>\n<\/tr>\n
      Command<\/td>\n\u7ebf\u7a0b\u5f53\u524d\u6267\u884c\u7684\u547d\u4ee4\u7c7b\u578b\uff0c\u5982 Query<\/code>\u3001Sleep<\/code> \u6216 Connect<\/code>\u3002<\/td>\n<\/tr>\n
      Time<\/td>\n\u7ebf\u7a0b\u5728\u5f53\u524d\u72b6\u6001\u7684\u6301\u7eed\u65f6\u95f4\uff08\u79d2\uff09\u3002<\/td>\n<\/tr>\n
      State<\/td>\n\u7ebf\u7a0b\u7684\u5f53\u524d\u6d3b\u52a8\u72b6\u6001\uff0c\u5982 executing<\/code> \u6216 Waiting for table flush<\/code>\u3002<\/td>\n<\/tr>\n
      Info<\/td>\n\u7ebf\u7a0b\u6b63\u5728\u6267\u884c\u7684SQL\u8bed\u53e5\uff0c\u672a\u4f7f\u7528 FULL<\/code> \u65f6\u663e\u793a\u524d100\u5b57\u7b26\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
      \u6743\u9650\u8981\u6c42<\/h3>\n
        \n
      • \u62e5\u6709 PROCESS<\/code> \u6743\u9650\u7684\u7528\u6237\u53ef\u67e5\u770b\u6240\u6709\u7ebf\u7a0b\u4fe1\u606f\u3002<\/li>\n
      • \u666e\u901a\u7528\u6237\u53ea\u80fd\u67e5\u770b\u81ea\u5df1\u7684\u7ebf\u7a0b\u4fe1\u606f\u3002<\/li>\n<\/ul>\n
        \u5982\u4f55\u4f7f\u7528SHOW PROCESSLIST\u547d\u4ee4<\/h2>\n
        \u4ee5\u4e0b\u662f\u5728\u9999\u6e2f\u670d\u52a1\u5668\u4e0a\u4f7f\u7528 SHOW PROCESSLIST<\/code> \u7684\u8be6\u7ec6\u6b65\u9aa4\u3002<\/p>\n
        1. \u67e5\u770b\u5f53\u524d\u7ebf\u7a0b<\/h3>\n
        \u5728MySQL\u547d\u4ee4\u884c\u6216\u5ba2\u6237\u7aef\u4e2d\u8f93\u5165\uff1a<\/p>\n
        SHOW PROCESSLIST;\r\n<\/code><\/pre>\n
        \u793a\u4f8b\u8f93\u51fa\uff1a<\/p>\n
        +----+-----------------+-----------------+------+---------+------+------------------------+------------------+\r\n| Id | User            | Host            | db   | Command | Time | State                  | Info             |\r\n+----+-----------------+-----------------+------+---------+------+------------------------+------------------+\r\n| 4  | event_scheduler | localhost       | NULL | Daemon  | 1148 | Waiting on empty queue | NULL             |\r\n| 9  | root            | localhost:50255 | NULL | Query   | 0    | starting               | show processlist |\r\n+----+-----------------+-----------------+------+---------+------+------------------------+------------------+\r\n<\/code><\/pre>\n
        2. \u67e5\u770b\u5b8c\u6574\u67e5\u8be2<\/h3>\n
        \u82e5\u9700\u67e5\u770b\u5b8c\u6574\u7684SQL\u8bed\u53e5\uff0c\u4f7f\u7528\uff1a<\/p>\n
        SHOW FULL PROCESSLIST;\r\n<\/code><\/pre>\n
        \u8fd9\u5bf9\u4e8e\u8bca\u65ad\u590d\u6742\u67e5\u8be2\u6216\u957f\u67e5\u8be2\u975e\u5e38\u6709\u7528\u3002<\/p>\n
        3. \u7ec8\u6b62\u5f02\u5e38\u7ebf\u7a0b<\/h3>\n
        \u82e5\u53d1\u73b0\u67d0\u4e2a\u7ebf\u7a0b\u5360\u7528\u8d44\u6e90\u8fc7\u4e45\uff0c\u53ef\u4f7f\u7528 KILL<\/code> \u547d\u4ee4\u7ec8\u6b62\uff1a<\/p>\n
        KILL <\u7ebf\u7a0bID>;\r\n<\/code><\/pre>\n
        \u4f8b\u5982\uff1aKILL 9;<\/code> \u7ec8\u6b62ID\u4e3a9\u7684\u7ebf\u7a0b\u3002<\/p>\n
        \u5b9e\u9645\u5e94\u7528\u573a\u666f<\/h2>\n
        1. \u8bca\u65ad\u201ctoo many connections\u201d\u9519\u8bef<\/h3>\n
        \u5f53MySQL\u62a5\u544a\u201ctoo many connections\u201d\u9519\u8bef\u65f6\uff1a<\/p>\n
          \n
        1. \u8fd0\u884c SHOW PROCESSLIST<\/code> \u67e5\u770b\u5f53\u524d\u8fde\u63a5\u3002<\/li>\n
        2. \u8bc6\u522b\u957f\u65f6\u95f4\u8fd0\u884c\u6216\u7a7a\u95f2\u7684\u7ebf\u7a0b\uff08Command<\/code> \u4e3a Sleep<\/code>\uff09\u3002<\/li>\n
        3. \u4f7f\u7528 KILL<\/code> \u547d\u4ee4\u91ca\u653e\u8d44\u6e90\u3002<\/li>\n<\/ol>\n
          2. \u4f18\u5316\u6162\u67e5\u8be2<\/h3>\n
            \n
          • \u4f7f\u7528 SHOW FULL PROCESSLIST<\/code> \u67e5\u770b\u6b63\u5728\u6267\u884c\u7684\u67e5\u8be2\u3002<\/li>\n
          • \u5206\u6790 Time<\/code> \u548c State<\/code> \u5b57\u6bb5\uff0c\u627e\u51fa\u8017\u65f6\u8fc7\u957f\u7684\u67e5\u8be2\u3002<\/li>\n
          • \u4f18\u5316SQL\u8bed\u53e5\u6216\u8c03\u6574\u7d22\u5f15\u4ee5\u63d0\u5347\u6027\u80fd\u3002<\/li>\n<\/ul>\n
            3. \u76d1\u63a7\u4e3b\u4ece\u590d\u5236<\/h3>\n
            \u5728\u4e3b\u4ece\u590d\u5236\u73af\u5883\u4e2d\uff0c\u68c0\u67e5\u4ece\u670d\u52a1\u5668\u7684\u7ebf\u7a0b\u72b6\u6001\uff1a<\/p>\n
              \n
            • State<\/code> \u4e3a Waiting for master to send event<\/code> \u8868\u793a\u4ece\u670d\u52a1\u5668\u6b63\u5728\u7b49\u5f85\u4e3b\u670d\u52a1\u5668\u4e8b\u4ef6\u3002<\/li>\n
            • State<\/code> \u4e3a Has read all relay log<\/code> \u8868\u793a\u4ece\u670d\u52a1\u5668\u5df2\u5904\u7406\u6240\u6709\u65e5\u5fd7\u3002<\/li>\n<\/ul>\n
              \u66ff\u4ee3\u65b9\u6cd5\uff1aPerformance Schema<\/h2>\n
              \u9664\u4e86 SHOW PROCESSLIST<\/code>\uff0cMySQL\u7684 Performance Schema<\/code> \u63d0\u4f9b\u4e86\u66f4\u9ad8\u6548\u7684\u7ebf\u7a0b\u4fe1\u606f\u67e5\u8be2\u65b9\u5f0f\uff1a<\/p>\n
              SELECT * FROM performance_schema.threads;\r\n<\/code><\/pre>\n
              \u4f18\u70b9\uff1a<\/p>\n
                \n
              • \u4e0d\u9700\u8981\u4e92\u65a5\u9501\uff0c\u6027\u80fd\u66f4\u9ad8\u3002<\/li>\n
              • \u63d0\u4f9b\u66f4\u8be6\u7ec6\u7684\u7ebf\u7a0b\u6570\u636e\u3002<\/li>\n<\/ul>\n
                \u6ce8\u610f\u4e8b\u9879\u4e0e\u6700\u4f73\u5b9e\u8df5<\/h2>\n
                  \n
                1. \u8c28\u614e\u4f7f\u7528KILL\u547d\u4ee4<\/strong>\uff1a\u7ec8\u6b62\u7ebf\u7a0b\u53ef\u80fd\u4e2d\u65ad\u6b63\u5728\u6267\u884c\u7684\u64cd\u4f5c\uff0c\u9700\u786e\u8ba4\u7ebf\u7a0b\u65e0\u5173\u952e\u4efb\u52a1\u3002<\/li>\n
                2. \u76d1\u63a7\u9891\u7387<\/strong>\uff1a\u5b9a\u671f\u8fd0\u884c SHOW PROCESSLIST<\/code> \u68c0\u67e5\u5f02\u5e38\u7ebf\u7a0b\uff0c\u4fdd\u6301\u9999\u6e2f\u670d\u52a1\u5668\u6570\u636e\u5e93\u5065\u5eb7\u3002<\/li>\n
                3. \u7ed3\u5408\u5176\u4ed6\u5de5\u5177<\/strong>\uff1a\u642d\u914d EXPLAIN<\/code> \u5206\u6790\u6162\u67e5\u8be2\uff0c\u6216\u4f7f\u7528 INFORMATION_SCHEMA<\/code> \u8868\u83b7\u53d6\u66f4\u8be6\u7ec6\u6570\u636e\u3002<\/li>\n
                4. \u6743\u9650\u7ba1\u7406<\/strong>\uff1a\u786e\u4fdd\u53ea\u6709\u6388\u6743\u7528\u6237\u62e5\u6709 PROCESS<\/code> \u6743\u9650\uff0c\u9632\u6b62\u654f\u611f\u4fe1\u606f\u6cc4\u9732\u3002<\/li>\n<\/ol>\n
                  \u7ed3\u8bba<\/h2>\n
                  SHOW PROCESSLIST<\/code> \u547d\u4ee4\u662f\u7ba1\u7406MySQL\u6570\u636e\u5e93\u7684\u5f3a\u5927\u5de5\u5177\uff0c\u7279\u522b\u9002\u5408\u4f18\u5316\u9999\u6e2f\u670d\u52a1\u5668\u4e0a\u7684\u6570\u636e\u5e93\u6027\u80fd\u3002\u901a\u8fc7\u76d1\u63a7\u7ebf\u7a0b\u3001\u8bca\u65ad\u95ee\u9898\u548c\u4f18\u5316\u67e5\u8be2\uff0c\u60a8\u53ef\u4ee5\u663e\u8457\u63d0\u5347\u670d\u52a1\u5668\u7684\u7a33\u5b9a\u6027\u548c\u54cd\u5e94\u901f\u5ea6\u3002\u7ed3\u5408\u672c\u6587\u63d0\u4f9b\u7684\u6b65\u9aa4\u548c\u6700\u4f73\u5b9e\u8df5\uff0c\u6280\u672f\u4eba\u5458\u80fd\u591f\u9ad8\u6548\u7ba1\u7406\u6570\u636e\u5e93\uff0c\u786e\u4fdd\u7cfb\u7edf\u8fd0\u884c\u987a\u7545\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
                  \u5f15\u8a00 \u5728\u7ba1\u7406\u9999\u6e2f\u670d\u52a1\u5668\u4e0a\u7684MySQL\u6570\u636e\u5e93\u65f6\uff0c\u76d1\u63a7\u548c\u4f18\u5316\u6570\u636e\u5e93\u6027\u80fd\u662f\u786e\u4fdd\u7cfb\u7edf\u9ad8\u6548\u8fd0\u884c\u7684\u5173\u952e\u3002SHOW PROC […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7038],"tags":[],"class_list":["post-441962","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/441962","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=441962"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/441962\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=441962"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=441962"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=441962"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}