{"id":91,"date":"2020-10-29T10:43:53","date_gmt":"2020-10-29T02:43:53","guid":{"rendered":"https:\/\/www.db2go.net\/?p=91"},"modified":"2020-10-29T10:43:53","modified_gmt":"2020-10-29T02:43:53","slug":"adg%e5%90%8c%e6%ad%a5%e6%9d%82%e8%b0%88","status":"publish","type":"post","link":"https:\/\/www.db2go.net\/?p=91","title":{"rendered":"adg\u540c\u6b65\u6742\u8c08"},"content":{"rendered":"<p>adg\u7684\u642d\u5efa\u4e00\u822c\u95ee\u9898\u4e0d\u5927\uff0c\u9047\u5230\u95ee\u9898\u6700\u591a\u7684\u5e94\u8be5\u662f\u5b9e\u65f6\u540c\u6b65\u3002<\/p>\n<h1>1. adg\u540c\u6b65\u539f\u7406<\/h1>\n<p><img decoding=\"async\" src=\"https:\/\/www.db2go.net\/wp-content\/uploads\/2020\/10\/wp_editor_md_906a637473241187080d1da77f2fedaf.jpg\" alt=\"adg\u540c\u6b65\u539f\u7406\" \/><\/p>\n<h2>1.1. \u4f20\u8f93\u6d41\u7a0b\uff1a<\/h2>\n<ul>\n<li>\u4e3b\u5e93\u7684LGWR\u8fdb\u7a0b\u5199\u81ea\u5df1\u7684\u5728\u7ebf\u91cd\u505a\u65e5\u5fd7(ORL)<\/li>\n<li>\u4e3b\u5e93\u7684DataGuard\u8fdb\u7a0bLNS(LogWriter Network Process)\u4eceSGA\u7684redo buffer\u91cc\u8bfbredo\u4fe1\u606f\u7136\u540e\u901a\u8fc7\u7f51\u7edc\u670d\u52a1\u4f20\u8f93\u7ed9\u5907\u7528\u6570\u636e\u5e93\u3002<\/li>\n<li>\u7531LNS\u4f20\u8f93\u7684redo\u8bb0\u5f55\u7531\u5907\u7528\u6570\u636e\u5e93\u7684\u53e6\u5916\u4e00\u4e2aDataGuard\u8fdb\u7a0bRFS(Remote File Server)\u63a5\u6536\u3002<\/li>\n<li>RFS\u63a5\u6536redo\u8bb0\u5f55\u4e4b\u540e\u5c06\u5176\u5199\u5165\u5907\u7528\u91cd\u505a\u65e5\u5fd7(SRL)\u3002<\/li>\n<\/ul>\n<h2>1.2. ARCH or LNS<\/h2>\n<p>\u5728\u5907\u5e93\u6545\u969c\u6216\u7f51\u7edc\u4e2d\u65ad\u671f\u95f4\uff0cDataGuard\u5728\u4e3b\u5e93\u4e0a\u4f7f\u7528ARCH\u8fdb\u7a0b\u8fde\u7eedping\u5907\u5e93\u6765\u786e\u5b9a\u5176\u72b6\u6001\u3002\u5f53\u4e0e\u5907\u5e93\u7684\u901a\u4fe1\u8fd8\u539f\u540e\uff0cARCH ping\u8fdb\u7a0b\u4f1a\u67e5\u8be2\u5907\u5e93\u63a7\u5236\u6587\u4ef6\u6765\u786e\u5b9a\u5907\u7528\u6570\u636e\u5e93\u6700\u540e\u4e00\u4e2a\u63a5\u6536\u5230\u7684\u5b8c\u6574\u65e5\u5fd7\u6587\u4ef6\uff0c\u4ee5\u6b64\u786e\u5b9a\u9700\u8981\u4ece\u4e3b\u5e93\u4f20\u8f93\u54ea\u4e9b\u65e5\u5fd7\u6587\u4ef6\u6765\u91cd\u65b0\u540c\u6b65\u5907\u5e93\uff0c\u7136\u540e\u5f00\u59cb\u4f7f\u7528ARCH\u8fdb\u7a0b\u4f20\u8f93\u76f8\u5e94\u6587\u4ef6\u3002<\/p>\n<p>Oracle10g\u5f00\u59cb\u9ed8\u8ba4\u5f52\u6863\u8fdb\u7a0b\u6570\u4e3a2\uff0c\u4ece\u800c\u5728\u81ea\u52a8\u5904\u7406\u65e5\u5fd7\u6587\u4ef6\u95f4\u9694\u65f6\uff0c\u4e0d\u5f71\u54cd\u4e3b\u6570\u636e\u5e93\u7684\u5f52\u6863\u64cd\u4f5c\u3002<\/p>\n<p>\u5728\u63a5\u4e0b\u6765\u6267\u884c\u65e5\u5fd7\u5207\u6362\u65f6\uff0cLNS\u4f1a\u8bd5\u56fe\u8fde\u63a5\u5907\u7528\u6570\u636e\u5e93\uff0c\u6210\u529f\u540e\u4e5f\u4f1a\u5f00\u59cb\u4f20\u8f93\u5f53\u524d\u91cd\u505a\u6570\u636e\uff0c\u540c\u4e00\u65f6\u95f4ARCH\u8fdb\u7a0b\u5728\u540e\u53f0\u5904\u7406\u65e5\u5fd7\u6587\u4ef6\u95f4\u9694\u3002<\/p>\n<p>\u5f53\u5e94\u7528\u8fdb\u7a0b(MRP)\u8d76\u4e0a\u8fdb\u5ea6\u4e4b\u540e\uff0c\u4e0d\u518d\u8bfb\u53d6\u5f52\u6863\u65e5\u5fd7\u6587\u4ef6\uff0c\u8f6c\u800c\u8bfb\u53d6SRL\u6587\u4ef6\u3002<\/p>\n<h2>1.3. \u5e94\u7528\u670d\u52a1\uff08MRP\uff09<\/h2>\n<p>MRP\u8fdb\u7a0b\u5728\u5e93\u81ea\u52a8\u5e94\u7528redo\u8bb0\u5f55\u6765\u7ef4\u62a4\u4e0e\u4e3b\u5e93\u7684\u540c\u6b65\uff0c\u5141\u8bb8\u5bf9\u6570\u636e\u7684\u4e8b\u52a1\u6027\u4e00\u81f4\u8bbf\u95ee\u3002\u9ed8\u8ba4\u5e94\u7528\u670d\u52a1\u9700\u8981\u7b49\u5f85SRL\u5f52\u6863\u4e4b\u540e\u624d\u5e94\u7528redo\uff0c\u5f53\u7136\u4e5f\u53ef\u4ee5\u542f\u52a8\u5b9e\u65f6\u5e94\u7528\uff0c\u5141\u8bb8\u5e94\u7528\u670d\u52a1\u5e94\u7528\u5f53\u524dSRL\u7684redo\u8bb0\u5f55\u3002<\/p>\n<h2>1.4. \u4fdd\u8bc1\u5b9e\u65f6\u540c\u6b65\u7684\u6761\u4ef6<\/h2>\n<p>\u4fdd\u8bc1\u5b9e\u65f6\u540c\u6b65\u7684\u5fc5\u8981\u6761\u4ef6\uff1a<br \/>\n&#8211; the standby redo logs are the same size as the online redo logs, and<br \/>\n&#8211; there are (( # of online logs per thread + 1) * # of threads) standby redo logs.<\/p>\n<h1>2. \u51fa\u95ee\u9898\u7684\u5206\u6790\u6b65\u9aa4<\/h1>\n<p>\u4e00\u822c\u51fa\u73b0\u95ee\u9898\u4e86\uff0c\u6211\u4eec\u53ef\u4ee5\u53bb\u67e5\u51e0\u4e2a\u6570\u636e\u5b57\u5178\uff1a<\/p>\n<h2>2.1. \u67e5\u8be2\u8fdb\u7a0b\u662f\u5426\u6b63\u5e38: <code>gV$MANAGED_STANDBY<\/code><\/h2>\n<pre><code class=\"language-sql line-numbers\">SELECT PROCESS, STATUS, THREAD#, SEQUENCE#, BLOCK#, BLOCKS ,CLIENT_PID, pid  FROM gV$MANAGED_STANDBY WHERE THREAD#!=0 ORDER BY THREAD#, SEQUENCE#\n<\/code><\/pre>\n<ol>\n<li>\u901a\u8fc7\u4e0a\u9762\u7684\u8bed\u53e5\u5728\u4e3b\u5e93\u5224\u65adLNS\u8fdb\u7a0b\u662f\u5426\u6b63\u5e38\uff0c\u4e3b\u5e93\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u67e5\u770blns\u8fdb\u7a0b\u662f\u5426\u5b58\u5728\uff1a<\/li>\n<\/ol>\n<pre><code class=\"language-sh line-numbers\">ps -ef|grep -v grep|grep -E \"ora_lns|ora_nsa|ora_nss\"\n<\/code><\/pre>\n<ol start=\"2\">\n<li>\u5728\u5907\u5e93\u5224\u65adMRP\u8fdb\u7a0b\u662f\u5426\u6b63\u5e38\uff1a\u5907\u5e93\u8fdb\u7a0b\u5982\u4e0b\uff0c\u6709MRP\u8fdb\u7a0b\uff08wait for log\uff09\uff0c\u6ca1\u6709\u53d1\u73b0RFS\u8fdb\u7a0b\u5de5\u4f5c\uff0c\u4e5f\u53ef\u4ee5\u7406\u89e3\u4e3a\u5f53\u524d\u6ca1\u6709\u6570\u636e\u4f20\u8f93 ing \u3002<\/p>\n<\/li>\n<li>\n<p>\u6b63\u5e38\u60c5\u51b5\u4e0b\u4e3b\u5e93\u67e5\u8be2\u5907\u7528\u6570\u636e\u5e93\u5e94\u7528\u6a21\u5f0f\uff1a<\/p>\n<\/li>\n<\/ol>\n<pre><code class=\"language-sql line-numbers\">SELECT RECOVERY_MODE FROM V$ARCHIVE_DEST_STATUS WHERE DEST_ID=2;\n\nRECOVERY_MODE\n-----------------------\nMANAGED REAL TIME APPLY\u00a0\n\n\u5982\u679c\u662f\u975e\u5b9e\u65f6\uff0c\u5219\u663e\u793a\u4e3aMANAGED\n<\/code><\/pre>\n<ol start=\"4\">\n<li>\u6b63\u5e38\u60c5\u51b5\u5907\u5e93\u4e00\u76f4\u5b9e\u65f6\u5e94\u7528\uff0c\u5e94\u8be5\u7c7b\u4f3c\u5982\u4e0b\uff1a<\/li>\n<\/ol>\n<pre><code class=\"language-sql line-numbers\">col BLOCKS for 999999999999999\ncol client_process for a15\ncol CLIENT_PID for a15\ncol STATUS for a15\nSELECT INST_ID, PROCESS, PID, CLIENT_PROCESS, CLIENT_PID, STATUS, THREAD#, SEQUENCE#, BLOCK#, BLOCKS\nFROM GV$MANAGED_STANDBY\nWHERE THREAD#!=0 ORDER BY THREAD#, SEQUENCE#;\n\n\u00a0 INST_ID PROCESS \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0PID CLIENT_PROCESS \u00a0CLIENT_PID \u00a0 \u00a0 \u00a0STATUS \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 THREAD# SEQUENCE# \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 BLOCK# \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 BLOCKS\n--------- --------- ---------------- --------------- --------------- --------------- -------- --------- ---------------- ----------------\n\u00a0 \u00a0 \u00a0 \u00a0 1 ARCH \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0143191 ARCH \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0143191 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0CLOSING \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a01 \u00a0 \u00a0 \u00a05599 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a01 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a06\n\u00a0 \u00a0 \u00a0 \u00a0 1 ARCH \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0143189 ARCH \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0143189 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0CLOSING \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a01 \u00a0 \u00a0 \u00a05600 \u00a0 \u00a0 \u00a0 \u00a0 \u00a03473408 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1446\n\u00a0 \u00a0 \u00a0 \u00a0 1 ARCH \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0143195 ARCH \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0143195 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0CLOSING \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a01 \u00a0 \u00a0 \u00a05602 \u00a0 \u00a0 \u00a0 \u00a0 \u00a03682304 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0553\n\u00a0 \u00a0 \u00a0 \u00a0 1 RFS \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 144485 LGWR \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0204820 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0IDLE \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1 \u00a0 \u00a0 \u00a05603 \u00a0 \u00a0 \u00a0 \u00a0 \u00a01020933 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a03\n\u00a0 \u00a0 \u00a0 \u00a0 1 MRP0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0144706 N\/A \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 N\/A \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 APPLYING_LOG \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1 \u00a0 \u00a0 \u00a05603 \u00a0 \u00a0 \u00a0 \u00a0 \u00a01020935 \u00a0 \u00a0 \u00a0 \u00a0 \u00a04194304\u00a0\n<\/code><\/pre>\n<p>\u5728alert\u65e5\u5fd7\u4e2d\u5e94\u8be5\uff1a<\/p>\n<pre><code class=\"line-numbers\">Primary database is in MAXIMUM PERFORMANCE mode.\nMedia Recovery Log \/u01\/arch\/1_100_xxxx.dbf\nMedia Recovery Log \/u01\/arch\/1_101_xxxx.dbf\nMedia Recovery Log \/u01\/arch\/1_102_xxxx.dbf\nMedia Recovery Log \/u01\/arch\/1_103_xxxx.dbf\nMedia Recovery Waiting for thread 1 sequence 489 (in transit)\u00a0\n<\/code><\/pre>\n<h2>2.2. \u67e5\u8be2\u662f\u5426\u5b9e\u65f6\u5e94\u7528<code>gv$dataguard_stats<\/code><\/h2>\n<pre><code class=\"language-sql line-numbers\">set lines 200\ncol ctime format a20\ncol value format a20\nselect inst_id,to_char(sysdate,'yyyymmdd hh24:mi:ss') ctime,name,value,datum_time from gv$dataguard_stats where name like '%lag';\n<\/code><\/pre>\n<p>\u6700\u8fd1\u9047\u5230\u7684\u4e00\u4e2a\u95ee\u9898\uff1a<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.db2go.net\/wp-content\/uploads\/2020\/10\/wp_editor_md_743d69000909ecd2533e0857003c2687.jpg\" alt=\"\" \/><\/p>\n<p>\u53ef\u4ee5\u5f88\u660e\u663e\u7684\u770b\u5230\u662f\uff1a\u4f20\u8f93\u6ca1\u6709\u95ee\u9898\uff0c\u5b9e\u65f6\u5e94\u7528\u51fa\u4e86\u95ee\u9898\uff0c\u90a3\u4e48\u5c31\u5e94\u8be5\u53bb\u627e\u5b9e\u65f6\u5e94\u7528\u4e3a\u4ec0\u4e48\u4e0d\u201c\u5b9e\u65f6\u201d\u4e86<\/p>\n<h2>2.3. ORA-16191<\/h2>\n<p>\u4e00\u822c\u51fa\u73b0\u5bc6\u7801\u95ee\u9898\uff0c\u53ef\u4ee5\u5148\u53bb\u4e3b\u5e93\u4fee\u6539\u4e00\u4e0bsys\u7684\u5bc6\u7801\uff0c\u7136\u540e\u5c06orapwd\u6587\u4ef6\u5206\u53d1\u5230\u5907\u5e93\u4e0a\u53bb\u3002<\/p>\n<h2>2.4. alert\u63d0\u793a\u770btrace<\/h2>\n<p>alert\u91cc\u9762\u63d0\u793a\u4e86\u770btrace\uff0c\u4f46\u6ca1\u6709\u5199\u5177\u4f53\u7684\u8def\u5f84\uff0c\u5982\u4e0b<\/p>\n<pre><code class=\"line-numbers\">FAL[server, ARC8]: FAL archive failed, see trace file.\n<\/code><\/pre>\n<p>\u90a3\u8fd9\u4e2atrace\u6587\u4ef6\u7684\u540d\u5b57\u5e94\u8be5\u662f instid_ARC8_xxxx.trc \u548c instid_ARC8_xxxx.trm<\/p>\n<h2>2.5. \u9047\u5230\u95f4\u6b47\u6027\u4e0d\u901a<\/h2>\n<p>\u53ef\u4ee5\u5c06dest\u5148defer\u518denable\u8bd5\u8bd5\u3002\u4e5f\u53ef\u4ee5\u5207\u4e00\u4e0b\u4e3b\u5e93\u7684\u6240\u6709\u5b9e\u4f8b\u7684\u65e5\u5fd7\u770b\u4e0balert\u6709\u6ca1\u6709\u62a5\u9519<\/p>\n<pre><code class=\"language-sql line-numbers\">ALTER SYSTEM ARCHIVE LOG CURRENT\uff1b\n<\/code><\/pre>\n<h1>3. \u6570\u636e\u5b57\u5178<\/h1>\n<h2>3.1. <code>FAL_CLIENT<\/code>\u548c<code>FAL_SERVER<\/code><\/h2>\n<p>FAL_CLIENT\u548cFAL_SERVER\u662f\u914d\u7f6edataguard\u7528\u5230\u7684\u4e24\u4e2a\u53c2\u6570,FAL\u6307\u83b7\u53d6\u5f52\u6863\u65e5\u5fd7(Fetch Archived Log)\uff0c\u8fd9\u4e24\u4e2a\u53c2\u6570\u53ea\u9700\u5728standby\u5e93\u8bbe\u7f6e\u3002<\/p>\n<p>\u5728\u4e00\u5b9a\u7684\u6761\u4ef6\u4e0b\uff0c\u6216\u8005\u56e0\u4e3a\u7f51\u7edc\u5931\u8d25\uff0c\u6216\u8005\u56e0\u4e3a\u8d44\u6e90\u7d27\u5f20\uff0c\u4f1a\u5728primary\u548cstandby\u4e4b\u95f4\u4ea7\u751f\u88c2\u9699\uff0c\u4e5f\u5c31\u662f\u6709\u4e9b\u5f52\u6863\u65e5\u5fd7\u6ca1\u6709\u53ca\u65f6\u7684\u4f20\u8f93\u5e76\u5e94\u7528\u5230standby\u5e93\u3002\u56e0\u4e3aMRP(managed recovery process)\/LSP(logical standby process)\u6ca1\u6709\u4e0eprimary\u76f4\u63a5\u901a\u8baf\u7684\u80fd\u529b\u6765\u83b7\u53d6\u4e22\u5931\u7684\u5f52\u6863\u65e5\u5fd7\u3002\u56e0\u6b64\u8fd9\u4e9bgaps\u901a\u8fc7FAL\u5ba2\u6237\u548c\u670d\u52a1\u5668\u6765\u89e3\u51b3\uff0c\u7531\u521d\u59cb\u5316\u53c2\u6570\u5b9a\u4e49FAL_CLIENT\u548cFAL_SERVER\u3002<\/p>\n<ul>\n<li><code>FAL_SERVER<\/code>\u6307\u5b9a\u4e00\u4e2aOracle Net service name,standby\u6570\u636e\u5e93\u4f7f\u7528\u8fd9\u4e2a\u53c2\u6570\u8fde\u63a5\u5230FAL server,\u8fd9\u4e2a\u53c2\u6570\u9002\u7528\u4e8estandby\u7ad9\u70b9\u3002\u6bd4\u5982,<code>FAL_SERVER = PrimaryDB<\/code>,\u6b64\u5904PrimaryDB\u662f\u4e00\u4e2aTNS name,\u6307\u5411primary\u5e93\u3002<\/p>\n<\/li>\n<li>\n<p><code>FAL_CLIENT<\/code>\u6307\u5b9a\u4e00\u4e2aFAL\u5ba2\u6237\u7aef\u7684\u540d\u5b57\uff0c\u4ee5\u4fbfFAL Server\u53ef\u4ee5\u5f15\u7528standby\u5e93\uff0c\u8fd9\u4e5f\u662f\u4e00\u4e2aTNS name\uff0cprimary\u5e93\u5fc5\u987b\u9002\u5f53\u914d\u7f6e\u6b64TNS name\u6307\u5411stanby\u5e93\u3002\u8fd9\u4e2a\u53c2\u6570\u4e5f\u662f\u5728standby\u5e93\u7aef\u8bbe\u7f6e\u3002\u6bd4\u5982\uff0c<code>FAL_CLIENT = StandbyDB<\/code>,StandbyDB\u662fstandby\u5e93\u7684TNS name\u3002<\/p>\n<\/li>\n<\/ul>\n<p>&#8211;<code>FAL_CLIENT<\/code>\u548c<code>FAL_SERVER<\/code>\u5e94\u8be5\u6210\u5bf9\u8bbe\u7f6e\u6216\u6539\u53d8\u3002<\/p>\n<h2>3.2. <code>v$dataguard_stats<\/code><\/h2>\n<p>\u8fd9\u4e2a\u52a8\u6001\u89c6\u56fe\u4e00\u822c\u7528\u6765\u67e5\u770b\u5907\u5e93\u5230\u4e3b\u5e93\u7684\u5e94\u7528\u65e5\u5fd7\u5ef6\u8fdf\u65f6\u95f4\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5b57\u6bb5\u540d<\/th>\n<th>\u4f5c\u7528<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>APPLY LAG<\/td>\n<td>\u53ea\u4e0e\u5e94\u7528\u65e5\u5fd7\u7684\u5b9e\u4f8b\u6709\u5173\uff0c\u4e5f\u5c31\u662f \u5bf9\u4e8e\u5df2\u7ecf\u4f20\u5230\u5907\u5e93\u7684redo\u6765\u8bf4\uff0c\u9700\u8981\u5e94\u7528\u8fd9\u90e8\u5206redo\u65e5\u5fd7\u9700\u8981\u7684\u5e94\u7528\u65f6\u95f4\uff09,\u5907\u5e93\u901a\u8fc7\u5e94\u7528\u4e3b\u5e93\u4f20\u8fc7\u6765\u7684redo\u65e5\u5fd7\u4e0e\u4e3b\u5e93\u540c\u6b65\u6240\u5ef6\u8fdf\u7684\u65f6\u95f4\u3002<\/td>\n<\/tr>\n<tr>\n<td>TRANSPORT LAG<\/td>\n<td>\u6ca1\u6709\u4f20\u5230\u5907\u5e93\u7684redo\u91cf\u6216\u8005\u5728\u5df2\u7ecf\u4f20\u8f93\u5230\u5907\u5e93\u4f46\u662f\u5907\u5e93\u6ca1\u6709\u5e94\u7528\u7684redo\u91cf\u3002<\/td>\n<\/tr>\n<tr>\n<td>APPLY FINISH TIME<\/td>\n<td>\u8868\u793a\u5728\u5907\u5e93\u4e0a\u5b8c\u6210redo\u5e94\u7528\u6240\u9700\u8981\u7684\u65f6\u95f4\u3002\u4ece\u4e3b\u6570\u636e\u5e93\u5df2\u7ecf\u63a5\u6536\u5230\u4e86\uff0c\u4f46\u662f\u6ca1\u6709\u5e94\u7528\u7684\u91cd\u505a\u65e5\u5fd7 \u6240\u9700\u7684\u65f6\u95f4\u4f30\u8ba1\u3002<\/td>\n<\/tr>\n<tr>\n<td>ESTIMATED STARTUP TIME<\/td>\n<td>\u542f\u52a8\u548c\u6253\u5f00\u7269\u7406\u5907\u5e93\u9700\u8981\u7684\u65f6\u95f4\uff0c\u4e0d\u9002\u7528\u903b\u8f91\u5907\u5e93<\/td>\n<\/tr>\n<tr>\n<td>standby has been open<\/td>\n<td>\u8be5\u503c\u8868\u793a\u7269\u7406\u5907\u5e93\u81ea\u4ece\u4e0a\u6b21\u542f\u52a8\u4ee5\u6765\uff0c\u662f\u5426\u4ee5OPEN READ ONLY\u65b9\u5f0f\u6253\u5f00\u8fc7\u3002\u8be5\u53c2\u6570\u503c\u5982\u679c\u662fY\uff0c\u73b0\u5728\u9700\u8981\u505aFAILOVER\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u5148\u5c06\u8be5\u7269\u7406\u5907\u5e93shutdown\u7136\u540e\u4ee5OPEN READ WRITE\u65b9\u5f0f\u6253\u5f00\u3002<\/td>\n<\/tr>\n<tr>\n<td>TIME_COMPUTED<\/td>\n<td>\u7269\u7406\u5907\u5e93\u4e0a\u4f30\u7b97\u5404\u4e2a\u53c2\u6570\u7684\u672c\u5730\u65f6\u95f4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>adg\u7684\u642d\u5efa\u4e00\u822c\u95ee\u9898\u4e0d\u5927\uff0c\u9047\u5230\u95ee\u9898\u6700\u591a\u7684\u5e94\u8be5\u662f\u5b9e\u65f6\u540c\u6b65\u3002 1. adg\u540c\u6b65\u539f\u7406 1.1. \u4f20\u8f93\u6d41\u7a0b\uff1a \u4e3b\u5e93\u7684L&hellip;<\/p>\n <a href=\"https:\/\/www.db2go.net\/?p=91\" title=\"adg\u540c\u6b65\u6742\u8c08\" class=\"entry-more-link\"><span>Read More<\/span> <span class=\"screen-reader-text\">adg\u540c\u6b65\u6742\u8c08<\/span><\/a>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"Layout":"","footnotes":""},"categories":[4],"tags":[],"class_list":["entry","author-suredandan","post-91","post","type-post","status-publish","format-standard","category-oracle"],"views":1714,"_links":{"self":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/91","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=91"}],"version-history":[{"count":2,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/91\/revisions"}],"predecessor-version":[{"id":93,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/91\/revisions\/93"}],"wp:attachment":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=91"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=91"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=91"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}