{"id":1265,"date":"2012-10-14T23:58:49","date_gmt":"2012-10-14T15:58:49","guid":{"rendered":"https:\/\/yangtingkun.net\/?p=1265"},"modified":"2013-03-03T15:44:20","modified_gmt":"2013-03-03T07:44:20","slug":"11-2%e4%bd%bf%e7%94%a8keep%e6%b1%a0%e5%af%bc%e8%87%b4enq-ko-fast-object-checkpoint%e7%ad%89%e5%be%85","status":"publish","type":"post","link":"https:\/\/yangtingkun.net\/?p=1265","title":{"rendered":"11.2\u4f7f\u7528KEEP\u6c60\u5bfc\u81f4ENQ: KO &#8211; Fast Object Checkpoint\u7b49\u5f85"},"content":{"rendered":"<p>\u524d\u4e00\u6bb5\u65f6\u95f4\u5728\u5ba2\u6237\u6d4b\u8bd5TPCC\u7684\u65f6\u5019\u78b0\u5230\u8fd9\u4e2a\u95ee\u9898\uff0c\u4eca\u5929\u5728MOS\u4e0a\u627e\u5230\u95ee\u9898\u7684\u539f\u56e0\uff0c\u7b80\u5355\u8bb0\u5f55\u4e00\u4e0b\u3002<\/p>\n<p>\u572811.2\u4e2d\uff0c\u5982\u679c\u8868\u8bbe\u7f6e\u4e86KEEP\u6c60\uff0c\u800c\u5728\u521d\u59cb\u5316\u53c2\u6570\u4e2d\u6ca1\u6709\u6307\u5b9aDB_KEEP_CACHE_SIZE\u7684\u503c\uff0c\u5c31\u53ef\u80fd\u4f1a\u9020\u6210\u6570\u636e\u5e93\u4e2d\u51fa\u73b0\u660e\u663e\u7684ENQ: KO \u2013 Fast Object Checkpoint\u7684\u7b49\u5f85\uff0c\u540c\u65f6\u8fd8\u4f34\u6709reliable message\u7684\u7b49\u5f85\u3002<\/p>\n<p>MOS\u6587\u6863ENQ: KO &#8211; Fast Object Checkpoint And Reliable Message Causing Bad Performance [ID 1377830.1]\u63cf\u8ff0\u4e86\u8fd9\u4e2a\u95ee\u9898\uff0c\u7ed9\u51fa\u7684\u89e3\u51b3\u65b9\u6848\u662f\u4e0d\u4f7f\u7528KEEP\u6c60\uff0c\u6539\u4e3a\u4f7f\u7528DEFAULT\u6c60\uff0c\u6216\u8005\u8bbe\u7f6eDB_KEEP_CACHE_SIZE\u7684\u503c\u4e3a\u975e0\u3002<\/p>\n<p>\u800c\u5f53\u65f6\u6d4b\u8bd5\u7684\u8fc7\u7a0b\u4e2d\uff0c\u95ee\u9898\u4e0e\u5f53\u524d\u7684\u73b0\u8c61\u5f88\u50cf\uff0c\u7248\u672c\u662f11.2.0.2\uff0c\u5728\u6267\u884c\u5b8c\u538b\u529b\u6d4b\u8bd5\u540e\uff0c\u6240\u6709\u7a0b\u5e8f\u65ad\u5f00\u540e\u3002\u5982\u679c\u6267\u884c\u5173\u95ed\u64cd\u4f5cSHUTDOWN IMMEDIATE\uff0c\u6b64\u65f6\u5c31\u53ef\u4ee5\u53d1\u73b0\uff0c\u6570\u636e\u5e93\u7ecf\u5386\u6f2b\u957f\u7684ENQ: KO \u2013 Fast Object Checkpoint\u7b49\u5f85\uff0c\u7136\u540e\u6570\u636e\u5e93\u624d\u53ef\u4ee5\u6b63\u5e38\u5173\u95ed\u3002\u4e0d\u8fc7\u552f\u4e00\u7684\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\uff0c\u5f53\u65f6\u6d4b\u8bd5\u73af\u5883\u4e2d\u8bbe\u7f6e\u4e86DB_KEEP_CACHE_SIZE\u7684\u503c\uff0c\u56e0\u6b64\u95ee\u9898\u548c\u5f53\u524d\u95ee\u9898\u63cf\u8ff0\u5f88\u50cf\uff0c\u4f46\u5e76\u4e0d\u4e00\u6837\u3002<\/p>\n<p>\u7531\u4e8e\u73af\u5883\u5df2\u7ecf\u6d88\u5931\uff0c\u73b0\u5728\u65e0\u6cd5\u9a8c\u8bc1\u8fd9\u4e2a\u95ee\u9898\uff0c\u4f46\u662f\u6839\u636e\u5370\u8c61\u5224\u65ad\uff0c\u8fd9\u4e2a\u95ee\u9898\u53ef\u80fd\u786e\u5b9e\u548c\u4f7f\u7528\u4e86KEEP\u6c60\u6709\u5173\uff0c\u5728\u4f7f\u7528KEEP\u6c60\u4e4b\u524d\u4f7f\u7528\u9ed8\u8ba4\u7684DEFAULT\u6c60\u65f6\uff0c\u6570\u636e\u5e93\u5173\u95ed\u5e76\u6ca1\u6709\u7ecf\u5386\u5982\u6b64\u4e25\u91cd\u7684\u7b49\u5f85\u3002\u56e0\u6b64\uff0c\u572811.2\u4e2d\u4f7f\u7528\u975eDEFAULT\u6c60\uff0c\u53ef\u80fd\u4f1a\u5f15\u53d1\u5f02\u5e38<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u4e00\u6bb5\u65f6\u95f4\u5728\u5ba2\u6237\u6d4b\u8bd5TPCC\u7684\u65f6\u5019\u78b0\u5230\u8fd9\u4e2a\u95ee\u9898\uff0c\u4eca\u5929\u5728MOS\u4e0a\u627e\u5230\u95ee\u9898\u7684\u539f\u56e0\uff0c\u7b80\u5355\u8bb0\u5f55\u4e00\u4e0b\u3002 \u572811.2\u4e2d\uff0c\u5982\u679c\u8868\u8bbe\u7f6e\u4e86KEEP\u6c60\uff0c\u800c\u5728\u521d\u59cb\u5316\u53c2\u6570\u4e2d\u6ca1\u6709\u6307\u5b9aDB_KEEP_CACHE_SIZE\u7684\u503c\uff0c\u5c31\u53ef\u80fd\u4f1a\u9020\u6210\u6570\u636e\u5e93\u4e2d\u51fa\u73b0\u660e\u663e\u7684ENQ: KO \u2013 Fast Object Checkpoint\u7684\u7b49\u5f85\uff0c\u540c\u65f6\u8fd8\u4f34\u6709reliable message\u7684\u7b49\u5f85\u3002 MOS\u6587\u6863ENQ: KO &#8211; Fast Object Checkpoint And Reliable Message Causing Bad Performance [ID 1377830.1]\u63cf\u8ff0\u4e86\u8fd9\u4e2a\u95ee\u9898\uff0c\u7ed9\u51fa\u7684\u89e3\u51b3\u65b9\u6848\u662f\u4e0d\u4f7f\u7528KEEP\u6c60\uff0c\u6539\u4e3a\u4f7f\u7528DEFAULT\u6c60\uff0c\u6216\u8005\u8bbe\u7f6eDB_KEEP_CACHE_SIZE\u7684\u503c\u4e3a\u975e0\u3002 \u800c\u5f53\u65f6\u6d4b\u8bd5\u7684\u8fc7\u7a0b\u4e2d\uff0c\u95ee\u9898\u4e0e\u5f53\u524d\u7684\u73b0\u8c61\u5f88\u50cf\uff0c\u7248\u672c\u662f11.2.0.2\uff0c\u5728\u6267\u884c\u5b8c\u538b\u529b\u6d4b\u8bd5\u540e\uff0c\u6240\u6709\u7a0b\u5e8f\u65ad\u5f00\u540e\u3002\u5982\u679c\u6267\u884c\u5173\u95ed\u64cd\u4f5cSHUTDOWN IMMEDIATE\uff0c\u6b64\u65f6\u5c31\u53ef\u4ee5\u53d1\u73b0\uff0c\u6570\u636e\u5e93\u7ecf\u5386\u6f2b\u957f\u7684ENQ: KO \u2013 Fast Object Checkpoint\u7b49\u5f85\uff0c\u7136\u540e\u6570\u636e\u5e93\u624d\u53ef\u4ee5\u6b63\u5e38\u5173\u95ed\u3002\u4e0d\u8fc7\u552f\u4e00\u7684\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\uff0c\u5f53\u65f6\u6d4b\u8bd5\u73af\u5883\u4e2d\u8bbe\u7f6e\u4e86DB_KEEP_CACHE_SIZE\u7684\u503c\uff0c\u56e0\u6b64\u95ee\u9898\u548c\u5f53\u524d\u95ee\u9898\u63cf\u8ff0\u5f88\u50cf\uff0c\u4f46\u5e76\u4e0d\u4e00\u6837\u3002 \u7531\u4e8e\u73af\u5883\u5df2\u7ecf\u6d88\u5931\uff0c\u73b0\u5728\u65e0\u6cd5\u9a8c\u8bc1\u8fd9\u4e2a\u95ee\u9898\uff0c\u4f46\u662f\u6839\u636e\u5370\u8c61\u5224\u65ad\uff0c\u8fd9\u4e2a\u95ee\u9898\u53ef\u80fd\u786e\u5b9e\u548c\u4f7f\u7528\u4e86KEEP\u6c60\u6709\u5173\uff0c\u5728\u4f7f\u7528KEEP\u6c60\u4e4b\u524d\u4f7f\u7528\u9ed8\u8ba4\u7684DEFAULT\u6c60\u65f6\uff0c\u6570\u636e\u5e93\u5173\u95ed\u5e76\u6ca1\u6709\u7ecf\u5386\u5982\u6b64\u4e25\u91cd\u7684\u7b49\u5f85\u3002\u56e0\u6b64\uff0c\u572811.2\u4e2d\u4f7f\u7528\u975eDEFAULT\u6c60\uff0c\u53ef\u80fd\u4f1a\u5f15\u53d1\u5f02\u5e38 &nbsp;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[5],"tags":[20,1110,558,1111,1112],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2yiY3-kp","_links":{"self":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/1265"}],"collection":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1265"}],"version-history":[{"count":3,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/1265\/revisions"}],"predecessor-version":[{"id":1267,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/1265\/revisions\/1267"}],"wp:attachment":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1265"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1265"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}