{"id":8757,"date":"2022-02-23T08:46:58","date_gmt":"2022-02-23T00:46:58","guid":{"rendered":"https:\/\/www.gbase8.cn\/?p=8757"},"modified":"2022-02-23T10:25:52","modified_gmt":"2022-02-23T02:25:52","slug":"gbase-8a%e6%9f%a5%e7%9c%8b%e5%92%8c%e6%b8%85%e7%90%86%e6%95%85%e9%9a%9c%e6%81%a2%e5%a4%8d%e7%8a%b6%e6%80%81failover%e7%9a%84%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/8757","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u67e5\u770b\u548c\u6e05\u7406\u6545\u969c\u6062\u590d\u72b6\u6001Failover\u7684\u65b9\u6cd5"},"content":{"rendered":"<p>GBase 8a\u5728\u6267\u884cdml,ddl\u7b49\u6570\u636e\u53d8\u52a8\u4e1a\u52a1\u65f6\uff0c\u4e3a\u4e86\u907f\u514d\u53d1\u8d77\u8282\u70b9\u51fa\u73b0\u6545\u969c\uff0c\u63d0\u4f9b\u4e86failover\u673a\u5236\u6765\u6e05\u7406\u6b8b\u4f59\u4fe1\u606f\uff0c\u4fdd\u8bc1\u96c6\u7fa4\u4e00\u81f4\u6027\u3002\u9488\u5bf9\u4e00\u4e9b\u7279\u6b8a\u60c5\u51b5\uff0c\u7279\u522b\u662f\u65e9\u671f\u7684\u7248\u672c\uff0c\u53ef\u80fd\u5b58\u5728\u67d0\u4e9b\u60c5\u51b5\u9700\u8981\u5f3a\u884c\u6e05\u7406\u7684\u60c5\u51b5\u3002\u7ed3\u5408\u5f3a\u884c\u91ca\u653e\u9501\u7684\u64cd\u4f5c\uff0c\u53ef\u4ee5\u6e05\u7406\u6307\u5b9aSQL\u5360\u7528\u7684\u8d44\u6e90\u3002\u672c\u6587\u63d0\u4f9b\u7684\u65b9\u6848\u8bf7\u614e\u91cd\u4f7f\u7528\u3002<\/p>\n\n\n\n<p>\u4e00\u822c\u8981\u914d\u5408\u9501\u7684\u6e05\u7406\uff1a<a href=\"https:\/\/www.gbase8.cn\/en\/8786\/\">GBase 8a\u67e5\u770b\u548c\u5f3a\u884c\u91ca\u653eSQL\u6301\u6709\u9501\u7684\u65b9\u6cd5<\/a><\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Directory Navigation<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2b2146eb993\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2b2146eb993\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.gbase8.cn\/en\/8757\/#%E5%8F%82%E8%80%83\" >\u53c2\u8003<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.gbase8.cn\/en\/8757\/#%E6%9F%A5%E7%9C%8Bfailover%E6%96%B9%E6%B3%95\" >\u67e5\u770bfailover\u65b9\u6cd5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.gbase8.cn\/en\/8757\/#Failover%E8%BE%93%E5%87%BA%E4%BF%A1%E6%81%AF%E8%A7%A3%E6%9E%90\" >Failover\u8f93\u51fa\u4fe1\u606f\u89e3\u6790<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.gbase8.cn\/en\/8757\/#%E5%BC%BA%E8%A1%8C%E6%B8%85%E7%90%86failover%E7%9A%84%E6%96%B9%E6%B3%95\" >\u5f3a\u884c\u6e05\u7406failover\u7684\u65b9\u6cd5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.gbase8.cn\/en\/8757\/#%E6%80%BB%E7%BB%93\" >Summary<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8F%82%E8%80%83\"><\/span>\u53c2\u8003<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/www.gbase8.cn\/en\/244\/\">GBase 8a \u96c6\u7fa4\u7684 failover\u548cevent\u7684\u533a\u522b<\/a><br><a href=\"https:\/\/www.gbase8.cn\/en\/8501\/\">GBase 8a\u4e0d\u91ca\u653e\u9501\u5bfc\u81f4\u7684SQL\u4e00\u76f4checking permissions\u5361\u4f4f<\/a><br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%9F%A5%E7%9C%8Bfailover%E6%96%B9%E6%B3%95\"><\/span>\u67e5\u770bfailover\u65b9\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5728\u6570\u636e\u5e93\u64cd\u4f5c\u7cfb\u7edfdbauser\u4e0b(\u4e00\u822c\u662fgbase)\u6267\u884c gcadmin showfailover<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1196\" height=\"156\" src=\"https:\/\/www.gbase8.cn\/wp-content\/uploads\/2022\/02\/16451504181.png\" alt=\"gcadmin showfailover\" class=\"wp-image-8770\"\/><\/figure>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;gbase@rh6-1 ubas]$ gcadmin showfailover\n+===================================================================================================================================================================================================+\n|                                                                                          GCLUSTER FAILOVER                                                                                        |\n+===================================================================================================================================================================================================+\n+------------+------------+-----------+------------+-----------+------------------+-------+-------------------------------------------+-------------------------------------------+-----------------+\n| commit  id |  database  |   table   |    scn     |   type    |   create  time   | state |              original node                |               takeover node               | takeover number |\n+------------+------------+-----------+------------+-----------+------------------+-------+-------------------------------------------+-------------------------------------------+-----------------+\n|  2359298   |   testdb   |    tt1    |  2359299   |    dml    |  20220218094731  |   3   |                10.0.2.201                 |                                           |        0        |\n+------------+------------+-----------+------------+-----------+------------------+-------+-------------------------------------------+-------------------------------------------+-----------------+\n<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u5f53\u524d\u6ca1\u6709failover\u4fe1\u606f\uff0c\u5219\u663e\u793a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;gbase@rh6-1 ubas]$ gcadmin showfailover\n\ngcadmin showfailover: no gcluster failover information now\n\n&#91;gbase@rh6-1 ubas]$\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Failover%E8%BE%93%E5%87%BA%E4%BF%A1%E6%81%AF%E8%A7%A3%E6%9E%90\"><\/span>Failover\u8f93\u51fa\u4fe1\u606f\u89e3\u6790<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><thead><tr><th>\u6807\u7b7e<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>commit id<\/td><td>failover \u7684\u552f\u4e00\u6807\u8bc6\uff0c64 \u4f4d\u6570\u5b57\u3002<\/td><\/tr><tr><td>database<\/td><td>\u6570\u636e\u5e93\u540d\u3002<\/td><\/tr><tr><td>table<\/td><td>\u8868\u540d<\/td><\/tr><tr><td>scn<\/td><td>scn \u53f7\u3002<\/td><\/tr><tr><td>type<\/td><td>\u7c7b\u578b\uff0c\u5305\u62ecddl\/dml\/rebalance\u3002<\/td><\/tr><tr><td>create time<\/td><td>\u521b\u5efa failover \u4fe1\u606f\u7684\u65f6\u95f4<\/td><\/tr><tr><td>state<\/td><td>failover \u5bf9\u5e94\u7684\u72b6\u6001\u6570\u5b57\uff1a<br>0\uff1a init\u521d\u59cb\u5316<br>1\uff1a add_res\u6dfb\u52a0\u96c6\u7fa4\u9501<br>2\uff1a set_info\u8bbe\u7f6e failover \u4fe1\u606f\uff08\u89e6\u53d1\u4e86failover,\u6709\u5176\u5b83\u8282\u70b9\u63a5\u7ba1\u4e86\uff0c\u5904\u7406\u4e2d)<br>3 \uff1aset_status\u8bbe\u7f6e\u5206\u7247\u72b6\u6001\uff08\u6700\u5e38\u89c1\u7684\u4fe1\u606f)<br>4 \uff1aset_rebalance_info\u8bbe\u7f6e rebalance \u4fe1\u606f<br>5 \uff1aset_rebalance_status\u8bbe\u7f6e rebalance \u72b6\u6001<\/td><\/tr><tr><td>original node<\/td><td>\u53d1\u8d77\u8282\u70b9<\/td><\/tr><tr><td>takeover node<\/td><td>\u5f53\u524d\u63a5\u7ba1\u8282\u70b9\uff0c\u5982\u679c\u6ca1\u6709\u53d1\u751f\u63a5\u7ba1\u5219\u663e\u793a\u4e3a\u7a7a<\/td><\/tr><tr><td>takeover number<\/td><td>failover \u7684\u63a5\u7ba1\u6b21\u6570\uff0cgcware \u901a\u77e5 gcluster \u63a5\u7ba1\u540e\u8fd9\u4e2a\u503c\u5c31\u52a01\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%BC%BA%E8%A1%8C%E6%B8%85%E7%90%86failover%E7%9A%84%E6%96%B9%E6%B3%95\"><\/span>\u5f3a\u884c\u6e05\u7406failover\u7684\u65b9\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"has-medium-font-size\"><span class=\"has-inline-color has-luminous-vivid-orange-color\">\u8b66\u544a\uff1aFAILOVER\u673a\u5236\u662f\u6570\u636e\u5e93\u5185\u4e3a\u4e86\u786e\u4fdd\u4e00\u81f4\u6027\u7684\uff0c\u5982\u679c\u5f3a\u884c\u6e05\u7406\uff0c\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u4e3b\u526f\u672c\u4e0d\u4e00\u81f4\uff0c\u6570\u636e\u65e0\u6cd5\u8bfb\u53d6\u7b49\u5f02\u5e38\u60c5\u51b5\u3002<\/span><\/p>\n\n\n\n<p>\u5982\u679c\u67d0\u4e2a\u64cd\u4f5c\uff0c\u5df2\u7ecf\u4eba\u5de5\u786e\u8ba4\u6ca1\u6709\u95ee\u9898(\u5404\u4e2a\u5206\u7247\u7684\u6570\u636e\uff0c\u5f53\u524d\u90fd\u662f\u53ef\u4ee5\u67e5\u8be2\uff0c\u6ca1\u6709\u4e3b\u526f\u672c\u6570\u636e\u884c\u6570\uff0c\u8868\u7ed3\u6784\u4e0d\u4e00\u81f4\u7b49\u5f02\u5e38\u60c5\u51b5\uff0c\u6216\u8005\u5df2\u7ecf\u51b3\u5b9a\u5220\u9664\u91cd\u5efa\u8be5\u8868\u65f6)\uff0c\u53ea\u662f\u4e3a\u4e86\u5220\u9664\u6570\u636e\u5e93\u7684\u5185\u90e8\u91cd\u8bd5\uff0c\u624d\u9700\u8981\u5f3a\u5236\u6e05\u7406failover\u3002\u5e38\u89c1\u4e8e\u67d0\u4e9b\u957f\u65f6\u95f4\u6ca1\u6709kill\u6389\u7684DML\u3001DDL\u7c7bSQL\uff0c \u4f46\u53c8\u4e0d\u80fd\u901a\u8fc7\u91cd\u542f\u4e00\u4e2a\u8282\u70b9\u89e3\u51b3\uff0c\u56e0\u4e3afailover\u4f1a\u88ab\u81ea\u52a8\u63a5\u7ba1\uff0c\u540e\u53f0\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n\n\n\n<p><span class=\"has-inline-color has-luminous-vivid-orange-color\">\u518d\u6b21\u63d0\u9192<\/span>\uff0c\u4e00\u5b9a\u786e\u8ba4\u5b89\u5168\uff0c\u624d\u53ef\u4ee5\u505a\u8fd9\u4e2a\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p>\u5982\u4e0b\u7ea2\u8272\u662f\u624b\u5de5\u8f93\u5165\u7684\u90e8\u5206\uff0c\u5176\u4e2d\u7684gcware.deletefailoverforce\u7684\u53c2\u6570\u662fcommit it, \u5c31\u662fshow failover\u7684\u7b2c\u4e00\u4e2a\u6807\u7b7e\u7684\u5185\u5bb9\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;gbase@rh6-1 ubas]$ <span class=\"has-inline-color has-luminous-vivid-orange-color\">Python<\/span>\n\nPython 2.6.6 (r266:84292, Oct 12 2012, 14:23:48)\n&#91;GCC 4.4.6 20120305 (Red Hat 4.4.6-4)] on linux2\nType \"help\", \"copyright\", \"credits\" or \"license\" for more information.\n&gt;&gt;&gt; <span class=\"has-inline-color has-luminous-vivid-orange-color\">import gcware<\/span>\n&gt;&gt;&gt; <span class=\"has-inline-color has-luminous-vivid-orange-color\">gcware.deletefailoverforce(2359298)<\/span>\n\n0\n&gt;&gt;&gt; <span class=\"has-inline-color has-luminous-vivid-orange-color\">quit()<\/span>\n&#91;gbase@rh6-1 ubas]$\n<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u6e05\u7406\u6210\u529f\uff0c\u8fd4\u56de0. \u518d\u6b21\u8fd0\u884cgcadmin showfailover\u786e\u8ba4\u5176\u6d88\u5931\u3002<\/p>\n\n\n\n<p>\u5982\u679ccommit id\u4e0d\u5b58\u5728\uff0c\u5219\u62a5\u9519<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Traceback (most recent call last):\n  File \"&lt;stdin&gt;\", line 1, in &lt;module&gt;\n  File \"\/usr\/lib64\/python_gcware\/gcware.py\", line 195, in deletefailoverforce\n    return _gcware.deletefailoverforce(commitid);\nException: deletefailoverforce: gcLckDeleteFailoverForce Error: &#91;49]-&gt;&#91;GC_AIS_ERR_NOT_EXIST_IN_SERVICE].\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%80%BB%E7%BB%93\"><\/span>Summary<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u672c\u6587\u65b9\u6cd5\u53ea\u9002\u5408\u4e8e\u975e\u6b63\u5e38\u60c5\u51b5\u4e0b\u7684\u4e34\u65f6\u64cd\u4f5c\uff0c\u7279\u522b\u662f\u9488\u5bf9\u4e00\u4e9b\u8001\u7248\u672c\u96c6\u7fa4\uff0c\u8bf7\u614e\u91cd\u4f7f\u7528\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>\u5357\u5927\u901a\u7528GBase 8a\u5728\u6267\u884cdml,ddl\u7b49\u6570\u636e\u53d8\u52a8\u4e1a\u52a1\u65f6\uff0c\u4e3a\u4e86\u907f\u514d\u53d1\u8d77\u8282\u70b9\u51fa\u73b0\u6545\u969c\uff0c\u63d0\u4f9b\u4e86failover\u673a\u5236\u6765\u6e05\u7406\u6b8b\u4f59\u4fe1\u606f\uff0c\u4fdd\u8bc1\u96c6\u7fa4\u4e00\u81f4\u6027\u3002\u9488\u5bf9\u4e00\u4e9b\u7279\u6b8a\u60c5\u51b5\uff0c\u7279\u522b\u662f\u65e9\u671f\u7684\u7248\u672c\uff0c\u53ef\u80fd\u5b58\u5728\u67d0\u4e9b\u60c5\u51b5\u9700\u8981\u5f3a\u884c\u6e05\u7406\u7684\u60c5\u51b5\u3002\u7ed3\u5408\u5f3a\u884c\u91ca\u653e\u9501\u7684\u64cd\u4f5c\uff0c\u53ef\u4ee5\u6e05\u7406\u6307\u5b9aSQL\u5360\u7528\u7684\u8d44\u6e90\u3002\u672c\u6587\u63d0\u4f9b\u7684\u65b9\u6848\u8bf7\u614e\u91cd\u4f7f\u7528\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[54],"tags":[],"class_list":["post-8757","post","type-post","status-publish","format-standard","hentry","category-gbase8a"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/8757","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=8757"}],"version-history":[{"count":24,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/8757\/revisions"}],"predecessor-version":[{"id":8816,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/8757\/revisions\/8816"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=8757"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=8757"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=8757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}