{"id":16388,"date":"2023-12-05T10:20:01","date_gmt":"2023-12-05T02:20:01","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=16388"},"modified":"2023-12-16T11:42:21","modified_gmt":"2023-12-16T03:42:21","slug":"elasticsearch-degc-fang-mian-zai-shi-yong-shi-yao","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/05\/elasticsearch-degc-fang-mian-zai-shi-yong-shi-yao\/","title":{"rendered":"Elasticsearch\u7684GC\u65b9\u9762\uff0c\u5728\u4f7f\u7528\u65f6\u8981\u6ce8\u610f\u4ec0\u4e48\uff1f"},"content":{"rendered":"

\u5728\u4f7f\u7528Elasticsearch\u65f6\uff0c\u5bf9\u5783\u573e\u56de\u6536\uff08Garbage Collection\uff0cGC\uff09\u7684\u7ba1\u7406\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u4e3aGC\u7684\u4e0d\u826f\u6027\u80fd\u53ef\u80fd\u5bfc\u81f4\u96c6\u7fa4\u6027\u80fd\u4e0b\u964d\u3001\u505c\u987f\u65f6\u95f4\u589e\u52a0\u4ee5\u53ca\u6574\u4f53\u7a33\u5b9a\u6027\u95ee\u9898\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5728\u4f7f\u7528Elasticsearch\u65f6\u9700\u8981\u6ce8\u610f\u7684GC\u65b9\u9762\u7684\u8981\u70b9\uff1a<\/p>\n

    \n
  1. \nJava\u7248\u672c\uff1a<\/strong><\/p>\n
      \n
    • \u4f7f\u7528Elasticsearch\u65f6\uff0c\u9009\u62e9\u4e0eElasticsearch\u7248\u672c\u517c\u5bb9\u7684Java\u7248\u672c\u3002\u5efa\u8bae\u4f7f\u7528\u5b98\u65b9\u63a8\u8350\u7684Java\u7248\u672c\uff0c\u5e76\u5b9a\u671f\u5347\u7ea7\u5230\u6700\u65b0\u7684\u7a33\u5b9a\u7248\u672c\u3002<\/li>\n<\/ul>\n<\/li>\n
    • \nJVM\u5806\u5927\u5c0f\u8c03\u4f18\uff1a<\/strong><\/p>\n
        \n
      • \u914d\u7f6eJVM\u7684\u5806\u5927\u5c0f\uff0c\u5305\u62ec\u521d\u59cb\u5806\u5927\u5c0f\uff08Xms\uff09\u548c\u6700\u5927\u5806\u5927\u5c0f\uff08Xmx\uff09\u3002\u786e\u4fdd\u8bbe\u7f6e\u5408\u7406\u7684\u5806\u5927\u5c0f\uff0c\u907f\u514d\u51fa\u73b0\u9891\u7e41\u7684Full GC\u3002<\/li>\n<\/ul>\n<\/li>\n
      • \nGC\u65e5\u5fd7\u8bb0\u5f55\uff1a<\/strong><\/p>\n
          \n
        • \u542f\u7528Java\u865a\u62df\u673a\u7684GC\u65e5\u5fd7\u8bb0\u5f55\uff0c\u4ee5\u4fbf\u5728\u9700\u8981\u65f6\u8fdb\u884c\u6545\u969c\u6392\u9664\u3002\u901a\u8fc7GC\u65e5\u5fd7\u53ef\u4ee5\u5206\u6790GC\u6d3b\u52a8\u3001\u505c\u987f\u65f6\u95f4\u548c\u9891\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n
        • \nGC\u7c7b\u578b\u9009\u62e9\uff1a<\/strong><\/p>\n
            \n
          • \u6839\u636e\u5e94\u7528\u7684\u6027\u80fd\u7279\u6027\u9009\u62e9\u9002\u5f53\u7684GC\u7b97\u6cd5\u3002\u5bf9\u4e8eElasticsearch\uff0c\u901a\u5e38\u63a8\u8350\u4f7f\u7528G1\u5783\u573e\u56de\u6536\u5668\uff0c\u56e0\u4e3a\u5b83\u5728\u5927\u5185\u5b58\u73af\u5883\u4e0b\u8868\u73b0\u8f83\u597d\u3002<\/li>\n<\/ul>\n<\/li>\n
          • \n\u505c\u987f\u65f6\u95f4\uff1a<\/strong><\/p>\n
              \n
            • \u5173\u6ce8GC\u505c\u987f\u65f6\u95f4\uff0c\u5c24\u5176\u662fFull GC\u3002\u8f83\u957f\u7684\u505c\u987f\u65f6\u95f4\u53ef\u80fd\u5bfc\u81f4\u96c6\u7fa4\u6027\u80fd\u7684\u4e0b\u964d\u3002\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574\u5783\u573e\u56de\u6536\u5668\u7684\u53c2\u6570\u6765\u4f18\u5316\u505c\u987f\u65f6\u95f4\u3002<\/li>\n<\/ul>\n<\/li>\n
            • \n\u65b0\u751f\u4ee3\u548c\u8001\u5e74\u4ee3\uff1a<\/strong><\/p>\n
                \n
              • \u914d\u7f6e\u65b0\u751f\u4ee3\u548c\u8001\u5e74\u4ee3\u7684\u6bd4\u4f8b\uff0c\u4ee5\u6ee1\u8db3\u5e94\u7528\u7a0b\u5e8f\u7684\u5185\u5b58\u9700\u6c42\u3002\u5408\u9002\u7684\u5206\u914d\u6709\u52a9\u4e8e\u51cf\u5c11Full GC\u7684\u9891\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n
              • \n\u5185\u5b58\u538b\u7f29\uff1a<\/strong><\/p>\n
                  \n
                • \u5728Java 8\u53ca\u4ee5\u540e\u7248\u672c\uff0c\u4f7f\u7528\u538b\u7f29\u6307\u9488\uff08Compressed Oops\uff09\u53ef\u4ee5\u51cf\u5c0f\u5185\u5b58\u5360\u7528\uff0c\u5bf9\u4e8e\u5927\u5185\u5b58\u73af\u5883\u4e0b\u7684Elasticsearch\u8282\u70b9\uff0c\u8fd9\u53ef\u80fd\u662f\u4e00\u4e2a\u4f18\u5316\u70b9\u3002<\/li>\n<\/ul>\n<\/li>\n
                • \n\u7269\u7406\u786c\u4ef6\u548c\u865a\u62df\u673a\uff1a<\/strong><\/p>\n
                    \n
                  • \u786e\u4fdd\u7269\u7406\u786c\u4ef6\u548c\u865a\u62df\u673a\u7684\u8d44\u6e90\u8db3\u591f\u652f\u6301Elasticsearch\u7684\u9700\u6c42\uff0c\u5305\u62ec\u5185\u5b58\u3001CPU\u548c\u5b58\u50a8\u3002<\/li>\n<\/ul>\n<\/li>\n
                  • \n\u5b9a\u671f\u76d1\u63a7\u548c\u8c03\u6574\uff1a<\/strong><\/p>\n
                      \n
                    • \u4f7f\u7528\u76d1\u63a7\u5de5\u5177\u5bf9Elasticsearch\u8282\u70b9\u8fdb\u884c\u5b9e\u65f6\u76d1\u63a7\uff0c\u5305\u62ecGC\u7edf\u8ba1\u548c\u5806\u4f7f\u7528\u60c5\u51b5\u3002\u5b9a\u671f\u5206\u6790\u76d1\u63a7\u6570\u636e\uff0c\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8c03\u6574\u914d\u7f6e\u3002<\/li>\n<\/ul>\n<\/li>\n
                    • \n\u7248\u672c\u66f4\u65b0\uff1a<\/strong><\/p>\n
                        \n
                      • \u5b9a\u671f\u5347\u7ea7Elasticsearch\u7248\u672c\uff0c\u4ee5\u83b7\u53d6\u6700\u65b0\u7684\u6027\u80fd\u4f18\u5316\u548cGC\u6539\u8fdb\u3002<\/li>\n<\/ul>\n<\/li>\n
                      • \nElasticsearch\u8bbe\u7f6e\uff1a<\/strong><\/p>\n
                          \n
                        • \u5728Elasticsearch\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u4e00\u4e9b\u76f8\u5173\u7684Java\u865a\u62df\u673a\u53c2\u6570\uff0c\u4f8b\u5982-Xmx<\/code>\u3001-Xms<\/code>\u3001-XX:+UseG1GC<\/code>\u7b49\uff0c\u6839\u636e\u9700\u8981\u8fdb\u884c\u8c03\u6574\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                          \u4ee5\u4e0a\u53ea\u662f\u4e00\u4e9b\u5efa\u8bae\uff0c\u5b9e\u9645\u7684GC\u8c03\u4f18\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u786c\u4ef6\u3001\u64cd\u4f5c\u7cfb\u7edf\u3001Elasticsearch\u7248\u672c\u548c\u96c6\u7fa4\u8d1f\u8f7d\u7b49\u56e0\u7d20\u6765\u5b9a\u5236\u3002\u901a\u8fc7\u7ec6\u81f4\u7684\u76d1\u63a7\u548c\u5408\u7406\u7684\u8c03\u4f18\uff0c\u53ef\u4ee5\u63d0\u9ad8Elasticsearch\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

                          \u5728\u4f7f\u7528Elasticsearch\u65f6\uff0c\u5bf9\u5783\u573e\u56de\u6536\uff08Garbage Collection\uff0cGC\uff09\u7684\u7ba1\u7406\u975e\u5e38\u91cd\u8981\uff0c\u56e0 […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[125],"tags":[],"class_list":["post-16388","post","type-post","status-publish","format-standard","hentry","category-elasticsearch"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/16388","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=16388"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/16388\/revisions"}],"predecessor-version":[{"id":48435,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/16388\/revisions\/48435"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=16388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=16388"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=16388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}