{"id":1755,"date":"2022-06-09T12:21:21","date_gmt":"2022-06-09T04:21:21","guid":{"rendered":"http:\/\/dba.qishuo.xin\/?p=1755"},"modified":"2022-06-09T12:24:49","modified_gmt":"2022-06-09T04:24:49","slug":"oracle-%e4%bd%bf%e7%94%a8-scans-%e6%98%af%e5%a6%82%e4%bd%95%e5%88%9b%e5%bb%ba%e6%95%b0%e6%8d%ae%e5%ba%93%e8%bf%9e%e6%8e%a5","status":"publish","type":"post","link":"http:\/\/dba.qishuo.xin\/?p=1755","title":{"rendered":"Oracle \u4f7f\u7528 SCANs \u662f\u5982\u4f55\u521b\u5efa\u6570\u636e\u5e93\u8fde\u63a5"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 ez-toc-wrap-right counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-6a143bca17338\" 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-6a143bca17338\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#1_Oracle%E4%BE%A6%E5%90%AC%E5%99%A8%E6%98%AF%E4%BB%80%E4%B9%88\" >1. Oracle\u4fa6\u542c\u5668\u662f\u4ec0\u4e48<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#2_%E4%BE%A6%E5%90%AC%E5%99%A8%E7%9A%84%E5%B7%A5%E4%BD%9C%E6%B5%81%E7%A8%8B\" >2. \u4fa6\u542c\u5668\u7684\u5de5\u4f5c\u6d41\u7a0b<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#21_%E6%9C%AF%E8%AF%AD\" >2.1. \u672f\u8bed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#22_%E6%B5%81%E7%A8%8B%E7%A4%BA%E6%84%8F%E5%9B%BE\" >2.2. \u6d41\u7a0b\u793a\u610f\u56fe<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#23_%E6%B5%81%E7%A8%8B%E8%AF%A6%E7%BB%86%E8%AF%B4%E6%98%8E\" >2.3. \u6d41\u7a0b\u8be6\u7ec6\u8bf4\u660e<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#3_%E8%BF%9C%E7%A8%8B%E4%BE%A6%E5%90%AC%E5%99%A8%E4%B8%8E%E6%9C%AC%E5%9C%B0%E4%BE%A6%E5%90%AC%E5%99%A8%EF%BC%88Remote_Listener_%E4%B8%8E_Local_Listener%EF%BC%89\" >3. \u8fdc\u7a0b\u4fa6\u542c\u5668\u4e0e\u672c\u5730\u4fa6\u542c\u5668\uff08Remote_Listener \u4e0e Local_Listener\uff09<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#31_REMOTE_LISTENER\" >3.1. REMOTE_LISTENER<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#32_LOCAL_LISTENER\" >3.2. LOCAL_LISTENER<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#4_%E5%A6%82%E4%BD%95%E9%85%8D%E7%BD%AE%E4%BE%A6%E5%90%AC\" >4. \u5982\u4f55\u914d\u7f6e\u4fa6\u542c<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#41_listenerora-%E4%B8%BB%E8%A6%81%E8%B4%9F%E8%B4%A3%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%E7%9A%84%E4%BE%A6%E5%90%AC%E9%85%8D%E7%BD%AE\" >4.1. listener.ora-\u4e3b\u8981\u8d1f\u8d23\u670d\u52a1\u5668\u7aef\u7684\u4fa6\u542c\u914d\u7f6e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#42_tnsnamesora-%E4%B8%BB%E8%A6%81%E8%B4%9F%E8%B4%A3%E5%AE%A2%E6%88%B7%E7%AB%AF%E7%9A%84%E4%BE%A6%E5%90%AC%E9%85%8D%E7%BD%AE\" >4.2. tnsnames.ora-\u4e3b\u8981\u8d1f\u8d23\u5ba2\u6237\u7aef\u7684\u4fa6\u542c\u914d\u7f6e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#43_sqlnetora\" >4.3. sqlnet.ora<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#5_%E4%BD%BF%E7%94%A8_SCANs_%E5%88%9B%E5%BB%BA%E6%95%B0%E6%8D%AE%E5%BA%93%E8%BF%9E%E6%8E%A5%E7%A4%BA%E4%BE%8B\" >5. \u4f7f\u7528 SCANs \u521b\u5efa\u6570\u636e\u5e93\u8fde\u63a5\u793a\u4f8b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#%E9%99%84%E5%BD%95%EF%BC%9A%E5%85%B3%E8%81%94%E6%88%96%E5%8F%82%E8%80%83%E6%96%87%E6%A1%A3\" >\u9644\u5f55\uff1a\u5173\u8054\u6216\u53c2\u8003\u6587\u6863<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#A_%E5%8F%82%E8%80%83\" >A. \u53c2\u8003<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#B_%E5%8D%95%E5%AE%9E%E4%BE%8B%E4%BE%A6%E5%90%AC%E5%99%A8%E5%B7%A5%E4%BD%9C%E6%B5%81%E7%A8%8B\" >B. \u5355\u5b9e\u4f8b\u4fa6\u542c\u5668\u5de5\u4f5c\u6d41\u7a0b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"http:\/\/dba.qishuo.xin\/?p=1755\/#C_%E5%85%B3%E8%81%94%E7%9A%84%E6%96%87%E6%A1%A3\" >C. \u5173\u8054\u7684\u6587\u6863<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p>\u53c2\u8003Oracle\u5b98\u7f51\uff1a<a target=\"_blank\" href=\"https:\/\/docs.oracle.com\/database\/121\/RILIN\/undrstnd.htm#RILIN1271\">https:\/\/docs.oracle.com\/database\/121\/RILIN\/undrstnd.htm#RILIN1271<\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Oracle%E4%BE%A6%E5%90%AC%E5%99%A8%E6%98%AF%E4%BB%80%E4%B9%88\"><\/span>1. Oracle\u4fa6\u542c\u5668\u662f\u4ec0\u4e48<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style='color:red'>\u4fa6\u542c\u5668\u662fOracle\u57fa\u4e8e\u670d\u52a1\u5668\u7aef\u7684\u4e00\u79cd\u7f51\u7edc\u670d\u52a1\uff0c\u4e3b\u8981\u7528\u4e8e\u4fa6\u542c\u5ba2\u6237\u7aef\u5411\u6570\u636e\u5e93\u670d\u52a1\u5668\u7aef\u63d0\u51fa\u7684\u8fde\u63a5\u8bf7\u6c42\u3002<\/span><\/p>\n<p>Oracle\u7f51\u7edc\u914d\u7f6e\u6709\u4e09\u4e2a\u914d\u7f6e\u6587\u4ef6 <code>listener.ora<\/code>\uff0c<code>tnsnames.ora<\/code>\uff0c<code>sqlnet.ora<\/code>\uff0c\u5176\u76ee\u5f55\u5747\u5728<code>$ORACLE_HOME\/network\/admin<\/code> \u3002<\/p>\n<p><span style='color:red'>Oracle\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u7aef\u7684\u8fde\u63a5\u662f\u901a\u8fc7\u5ba2\u6237\u7aef\u53d1\u51fa\u8fde\u63a5\u8bf7\u6c42\uff0c\u7531\u670d\u52a1\u5668\u7aef\u4fa6\u542c\u5668\u5bf9\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42\u8fdb\u884c\u5408\u6cd5\u68c0\u67e5\uff0c\u5982\u679c\u8fde\u63a5\u8bf7\u6c42\u6709\u6548\uff0c\u5219\u8fdb\u884c\u8fde\u63a5\uff0c\u5426\u5219\u62d2\u7edd\u8be5\u8fde\u63a5\u3002<\/span><\/p>\n<p>\u6240\u4ee5\u4f60\u8981\u8fde\u63a5\u8fdc\u7a0b\u6570\u636e\u5e93\uff0c\u90a3\u4e48\u8fdc\u7a0b\u6570\u636e\u5e93\u5c31\u8981\u914d\u7f6e\u4fa6\u542c\u5668\uff0c\u5ba2\u6237\u7aef\u5219\u4e0d\u9700\u8981\u914d\u7f6e\u3002<\/p>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/06\/image-1654734576273.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/06\/image-1654734576273.png\" alt=\"file\" \/><\/a><\/p>\n<p><strong>\u90a3\u5b83\u662f\u5de5\u4f5c\u539f\u7406\u662f\u4ec0\u4e48\u5462\uff0c\u63a5\u7740\u5f80\u4e0b\u770b\uff01<\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_%E4%BE%A6%E5%90%AC%E5%99%A8%E7%9A%84%E5%B7%A5%E4%BD%9C%E6%B5%81%E7%A8%8B\"><\/span>2. \u4fa6\u542c\u5668\u7684\u5de5\u4f5c\u6d41\u7a0b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"21_%E6%9C%AF%E8%AF%AD\"><\/span>2.1. \u672f\u8bed<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\n<p>SCAN VIP<br \/>\n<code>SCAN VIP<\/code> \u662f\u5728 <code>crsctl status resource \u2013t<\/code> \u547d\u4ee4\u7684\u8f93\u51fa\u4e2d\u627e\u5230\u7684\u8d44\u6e90\u4e4b\u4e00\u3002 <code>SCAN VIP<\/code> \u7684\u6570\u91cf\u5c06\u4e0e\u8bbe\u7f6e\u4e2d\u7684 <code>SCAN LISTENERS<\/code> \u6570\u91cf\u76f8\u540c\u3002<code>SCAN VIP<\/code> \u662f\u5206\u914d\u7ed9 SCAN \u4fa6\u542c\u5668\u7684\u7269\u7406 IP \u5730\u5740\u3002\u5982\u679c\u5728 <code>crsctl status resource \u2013t<\/code> \u547d\u4ee4\u7684\u8f93\u51fa\u4e2d\u786e\u5b9a <code>SCAN VIP<\/code> \u5728\u7ebf\uff0c\u5219 IP \u5730\u5740\u5728\u7269\u7406\u7f51\u7edc\u7aef\u53e3\u4e0a\u5728\u7ebf\u3002 \u53ea\u6709\u5f53 <code>SCAN VIP<\/code> \u5728\u7ebf\u65f6\uff0c\u6211\u4eec\u624d\u80fd\u542f\u52a8 SCAN \u4fa6\u542c\u5668\u3002<\/p>\n<\/li>\n<li>\n<p>SCAN LISTENER<br \/>\n<code>SCAN Listener<\/code> \u662f Oracle \u7ec4\u4ef6\uff0c\u5b83\u4f7f\u7528 <code>SCAN VIP<\/code>\uff08IP \u5730\u5740\uff09\u5728\u7aef\u53e3\uff08\u9ed8\u8ba4\u4e3a 1521\uff09\u4e0a\u5f00\u59cb\u8fd0\u884c\u670d\u52a1\u3002 \u6240\u4ee5\u5982\u679c <code>SCAN VIP<\/code> \u4e0d\u5728\u7ebf\uff0cSCAN \u4fa6\u542c\u5668\u4e0d\u4f1a\u542f\u52a8\u3002 <span style='color:red'>\u8fd9\u662f SCAN \u4fa6\u542c\u5668\u548c SCAN VIP \u4e4b\u95f4\u7684\u4e3b\u8981\u533a\u522b\u3002<\/span>  \u7ed9 <code>SCAN LISTENER<\/code> \u7684\u540d\u79f0\u79f0\u4e3a <code>SCAN NAME<\/code>\uff0c\u5e76\u5728 DNS \u670d\u52a1\u5668\u4e2d\u6ce8\u518c\u3002 \u6240\u4ee5\u7b80\u800c\u8a00\u4e4b\uff0c<code>SCAN LISTENER<\/code> \u548c <code>SCAN VIP<\/code> \u662f\u76f8\u4e92\u5173\u8054\u7684\u3002<\/p>\n<\/li>\n<li>\n<p>Node VIP<br \/>\n<code>Node VIP<\/code>(\u5373\u5404\u8282\u70b9\u7684VIP) \u662f\u5f53\u5f53\u524d\u8282\u70b9\u5b95\u673a\u65f6\u80fd\u591f\u91cd\u5b9a\u4f4d\u5230\u5176\u4ed6\u8282\u70b9\u672c\u5730\u4fa6\u542c\u5668\u7684 IP \u5730\u5740\u3002 \u4ec5\u4f7f\u7528\u8282\u70b9 VIP \u7684\u7f3a\u70b9\u662f\u5e94\u7528\u670d\u52a1\u5668\u7684 TNS \u8bb0\u5f55\u5e94\u8be5\u66f4\u65b0\u6240\u6709\u8282\u70b9 VIP \u5730\u5740\u3002 \u60a8\u53ef\u4ee5\u8bc6\u522b\u5206\u914d\u7ed9<code>Node VIP<\/code> \u7684 IP \u5730\u5740\u5c06\u6210\u4e3a LOCAL \u4fa6\u542c\u5668\u7684\u4e00\u90e8\u5206\u3002<span style='color:red'> \u81ea\u5df1\u6d4b\u8bd5\u4e00\u4e0b\uff0c\u5728\u6bcf\u4e2a\u8282\u70b9\u4e0a\u8fd0\u884c lsnrctl status \uff0c<strong>\u4f60\u4f1a\u53d1\u73b0\u672c\u5730\u4fa6\u542c\u5668\u6709\u4e24\u4e2aIP\u5730\u5740\u2014\u20141\u4e2a\u8282\u70b9IP\u548c2\u4e2a\u8282\u70b9VIP<\/strong>\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"22_%E6%B5%81%E7%A8%8B%E7%A4%BA%E6%84%8F%E5%9B%BE\"><\/span>2.2. \u6d41\u7a0b\u793a\u610f\u56fe<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/06\/image-1654732845548.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/06\/image-1654732845548.png\" alt=\"file\" \/><\/a><\/p>\n<h4><span class=\"ez-toc-section\" id=\"23_%E6%B5%81%E7%A8%8B%E8%AF%A6%E7%BB%86%E8%AF%B4%E6%98%8E\"><\/span>2.3. \u6d41\u7a0b\u8be6\u7ec6\u8bf4\u660e<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u6839\u636e\u73af\u5883\uff0c\u5f53\u60a8\u4f7f\u7528 SCAN \u901a\u8fc7\u670d\u52a1\u540d\u79f0\u8fde\u63a5\u5230 Oracle RAC \u6570\u636e\u5e93\u65f6\uff0c\u4f1a\u53d1\u751f\u4ee5\u4e0b\u64cd\u4f5c\u3002\u7f16\u53f7\u7684\u52a8\u4f5c\u5bf9\u5e94\u4e8e\u4e0a\u56fe\u4e2d\u6240\u793a\u7684\u7bad\u5934\u3002<\/p>\n<ol>\n<li>\n<p>\u6bcf\u4e2a\u5b9e\u4f8b\u7684 LREG \u8fdb\u7a0b\u5411<span style='color:red'>\u672c\u5730\u8282\u70b9\u4e0a\u7684\u9ed8\u8ba4\u4fa6\u542c\u5668\u548c\u6bcf\u4e2a SCAN \u4fa6\u542c\u5668<\/span>\u6ce8\u518c\u6570\u636e\u5e93\u670d\u52a1\uff0c\u8be5\u4fa6\u542c\u5668\u7531 REMOTE_LISTENER \u6570\u636e\u5e93\u53c2\u6570\u6307\u5b9a\u3002 \u4fa6\u542c\u5668\u4f1a\u6839\u636e\u5b9e\u4f8b\u548c\u8c03\u5ea6\u7a0b\u5e8f\u5904\u7406\u7684\u5de5\u4f5c\u91cf\u52a8\u6001\u66f4\u65b0\u3002<\/p>\n<\/li>\n<li>\n<p>\u5ba2\u6237\u7aef\u4f7f\u7528\u4ee5\u4e0b\u5f62\u5f0f\u7684\u8fde\u63a5\u63cf\u8ff0\u7b26\u53d1\u51fa\u6570\u636e\u5e93\u8fde\u63a5\u8bf7\u6c42\uff1a<\/p>\n<pre><code class=\"language-sql\">orausr\/@scan_name:1521\/webapp<\/code><\/pre>\n<p><span style='color:red'>\u6ce8\u610f\uff1a<\/span>\u5982\u679c\u4f7f\u7528 <code>Easy Connect<\/code> \u547d\u540d\u65b9\u6cd5\uff0c\u8bf7\u786e\u4fdd\u5ba2\u6237\u7aef\u4e0a\u7684 sqlnet.ora \u6587\u4ef6\u5728 <code>NAMES.DIRECTORY_PATH<\/code> \u53c2\u6570\u6307\u5b9a\u7684\u547d\u540d\u65b9\u6cd5\u5217\u8868\u4e2d\u5305\u542b <code>EZCONNECT<\/code>\u3002<\/p>\n<\/li>\n<li>\n<p>\u5ba2\u6237\u7aef\u4f7f\u7528 DNS \u6765\u89e3\u6790 scan_name\u3002 DNS\u8fd4\u56de\u5206\u914d\u7ed9SCAN\u7684\u4e09\u4e2a\u5730\u5740\u540e\uff0c\u5ba2\u6237\u7aef\u5411\u7b2c\u4e00\u4e2aIP\u5730\u5740\u53d1\u9001\u8fde\u63a5\u8bf7\u6c42\u3002 \u5982\u679c\u8fde\u63a5\u8bf7\u6c42\u5931\u8d25\uff0c\u5219\u5ba2\u6237\u7aef\u5c1d\u8bd5\u4f7f\u7528\u4e0b\u4e00\u4e2a IP \u5730\u5740\u8fdb\u884c\u8fde\u63a5\u3002<\/p>\n<\/li>\n<li>\n<p>\u5f53\u8fde\u63a5\u8bf7\u6c42\u6210\u529f\u65f6\uff0c\u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u96c6\u7fa4\u7684 SCAN \u4fa6\u542c\u5668\uff0c\u8be5\u96c6\u7fa4\u6258\u7ba1 <code>sales<\/code> \u6570\u636e\u5e93\u5e76\u5177\u6709\u63d0\u4f9b <code>webapp<\/code> \u670d\u52a1\u7684\u5b9e\u4f8b\uff0c\u5728\u672c\u793a\u4f8b\u4e2d\u4e3a <code>sales1<\/code> \u548c <code>sales2<\/code>\u3002 SCAN \u4fa6\u542c\u5668\u6bd4\u8f83\u5b9e\u4f8b <code>sales1<\/code> \u548c <code>sales2<\/code> \u7684\u5de5\u4f5c\u8d1f\u8f7d\u4ee5\u53ca\u8fd0\u884c\u5b83\u4eec\u7684\u8282\u70b9\u7684\u5de5\u4f5c\u8d1f\u8f7d\u3002 <span style='color:red'>\u5982\u679c SCAN \u4fa6\u542c\u5668\u786e\u5b9a <code>node2<\/code> \u7684\u8d1f\u8f7d\u4f4e\u4e8e <code>node1<\/code>\uff0c\u5219 SCAN \u4fa6\u542c\u5668\u9009\u62e9 <code>node2<\/code> \uff0c<strong>\u5e76\u5c06\u8be5\u8282\u70b9\u4e0a\u7684\u672c\u5730\u4fa6\u542c\u5668\u7684\u5730\u5740\u53d1\u9001\u56de\u5ba2\u6237\u7aef<\/strong>\u3002<\/span><br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/06\/image-1654735062944.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/06\/image-1654735062944.png\" alt=\"file\" \/><\/a><\/p>\n<\/li>\n<li>\n<p>\u5ba2\u6237\u7aef\u8fde\u63a5\u5230 <code>node2<\/code> \u4e0a\u7684<span style='color:red'>\u672c\u5730\u4fa6\u542c\u5668<\/span>\u3002\u672c\u5730\u4fa6\u542c\u5668\u542f\u52a8\u4e00\u4e2a\u4e13\u7528\u7684\u670d\u52a1\u5668\u8fdb\u7a0b\u4ee5\u8fde\u63a5\u5230\u6570\u636e\u5e93\u3002<\/p>\n<\/li>\n<li>\n<p>\u5ba2\u6237\u7aef\u76f4\u63a5\u8fde\u63a5\u5230 <code>node2<\/code> \u4e0a\u7684\u4e13\u7528\u670d\u52a1\u5668\u8fdb\u7a0b\u5e76\u8bbf\u95ee <code>sales2<\/code> \u6570\u636e\u5e93\u5b9e\u4f8b\u3002<\/p>\n<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"3_%E8%BF%9C%E7%A8%8B%E4%BE%A6%E5%90%AC%E5%99%A8%E4%B8%8E%E6%9C%AC%E5%9C%B0%E4%BE%A6%E5%90%AC%E5%99%A8%EF%BC%88Remote_Listener_%E4%B8%8E_Local_Listener%EF%BC%89\"><\/span>3. \u8fdc\u7a0b\u4fa6\u542c\u5668\u4e0e\u672c\u5730\u4fa6\u542c\u5668\uff08Remote_Listener \u4e0e Local_Listener\uff09<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"31_REMOTE_LISTENER\"><\/span>3.1. REMOTE_LISTENER<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style='color:red'>REMOTE_LISTENER<\/span> \u6307\u5b9a\u4e00\u4e2a\u7f51\u7edc\u540d\u79f0\uff0c\u8be5\u540d\u79f0\u89e3\u6790\u4e3a Oracle Net \u8fdc\u7a0b\u4fa6\u542c\u5668\u7684\u5730\u5740\u6216\u5730\u5740\u5217\u8868\uff08\u5373\u672a\u5728\u4e0e\u6b64\u5b9e\u4f8b\u76f8\u540c\u7684\u673a\u5668\u4e0a\u8fd0\u884c\u7684\u4fa6\u542c\u5668\uff09\u3002 \u5730\u5740\u6216\u5730\u5740\u5217\u8868\u5728 TNSNAMES.ORA \u6587\u4ef6\u6216\u4e3a\u60a8\u7684\u7cfb\u7edf\u914d\u7f6e\u7684\u5176\u4ed6\u5730\u5740\u5b58\u50a8\u5e93\u4e2d\u6307\u5b9a\u3002<\/p>\n<p>\u8fdc\u7a0b\u4fa6\u542c\u5668\u662f\u9a7b\u7559\u5728\u4e00\u53f0\u8ba1\u7b97\u673a\u4e0a\u7684\u4fa6\u542c\u5668\uff0c\u5b83\u5c06\u8fde\u63a5\u91cd\u5b9a\u5411\u5230\u53e6\u4e00\u53f0\u8ba1\u7b97\u673a\u4e0a\u7684\u6570\u636e\u5e93\u5b9e\u4f8b\u3002 \u8fdc\u7a0b\u4fa6\u542c\u5668\u901a\u5e38\u7528\u4e8e Oracle Real Application Clusters (Oracle RAC) \u73af\u5883\u3002 \u60a8\u53ef\u4ee5\u4e3a\u4e13\u7528\u6216\u5171\u4eab\u670d\u52a1\u5668\u73af\u5883\u914d\u7f6e\u8fdc\u7a0b\u4fa6\u542c\u5668\u7684\u6ce8\u518c\uff0c\u4f8b\u5982\u4f7f\u7528 Oracle RAC\u3002<\/p>\n<p><span style='color:red'>REMOTE_LISTENER \u5b9e\u9645\u4e0a\u8d77\u5230\u4e00\u4e2a\u91cd\u5b9a\u5411\u7684\u529f\u80fd\uff0c\u5b83\u5fc5\u987b\u548c\u672c\u5730\u4fa6\u542c\u4e00\u8d77\u624d\u80fd\u6b63\u5e38\u5de5\u4f5c\u3002<\/span><\/p>\n<p>\u5f53\u672c\u5730\u4fa6\u542c\u5668\u4e0d\u80fd\u8bbf\u95ee\u65f6\uff08\u4e3b\u8981\u662f\u7981\u7528\u4e86\u672c\u5730 VIP \u5730\u5740\u7684\u7aef\u53e3\uff09\uff0c\u539f\u672c\u5df2\u7ecf\u5efa\u7acb\u7684\u8fde\u63a5\u6c60\u518d\u6b21\u4e0e\u6570\u636e\u5e93\u8fde\u63a5\u65f6\u53ef\u80fd\u4f1a\u51fa\u73b0\u4e0b\u5217\u9519\u8bef\uff1a<\/p>\n<pre><code>[c3p0] A PooledConnection that has already signalled a Connection error is still in use!\n\u7ffb\u8bd1\uff1a[c3p0] \u5df2\u7ecf\u53d1\u51fa\u8fde\u63a5\u9519\u8bef\u4fe1\u53f7\u7684 PooledConnection \u4ecd\u5728\u4f7f\u7528\u4e2d\uff01<\/code><\/pre>\n<h4><span class=\"ez-toc-section\" id=\"32_LOCAL_LISTENER\"><\/span>3.2. LOCAL_LISTENER<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style='color:red'>LOCAL_LISTENER<\/span>\uff08\u5373\u5355\u8282\u70b9\/RAC\u7684\u672c\u5730\u4fa6\u542c\u5668\uff09 \u6307\u5b9a\u89e3\u6790\u4e3a Oracle Net \u672c\u5730\u4fa6\u542c\u5668\uff08\u5373\u4e0e\u6b64\u5b9e\u4f8b\u5728\u540c\u4e00\u53f0\u673a\u5668\u4e0a\u8fd0\u884c\u7684\u4fa6\u542c\u5668\uff09\u7684\u5730\u5740\u6216\u5730\u5740\u5217\u8868\u7684\u7f51\u7edc\u540d\u79f0\u3002\u5730\u5740\u6216\u5730\u5740\u5217\u8868\u5728 TNSNAMES.ORA \u6587\u4ef6\u6216\u4e3a\u60a8\u7684\u7cfb\u7edf\u914d\u7f6e\u7684\u5176\u4ed6\u5730\u5740\u5b58\u50a8\u5e93\u4e2d\u6307\u5b9a\u3002<\/p>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cPMON \u8fdb\u7a0b\u5728\u9ed8\u8ba4\u672c\u5730\u5730\u5740 TCP\/IP \u7aef\u53e3 1521 \u4e0a\u5411\u5176\u672c\u5730\u4fa6\u542c\u5668\u6ce8\u518c\u670d\u52a1\u4fe1\u606f\u3002\u5982\u679c\u4fa6\u542c\u5668\u914d\u7f6e\u4e0e\u6570\u636e\u5e93\u914d\u7f6e\u540c\u6b65\uff0c\u5219 PMON \u53ef\u4ee5\u5411\u975e\u9ed8\u8ba4\u672c\u5730\u4fa6\u542c\u5668\u6216\u975e\u9ed8\u8ba4\u672c\u5730\u4fa6\u542c\u5668\u6ce8\u518c\u670d\u52a1\u4fe1\u606f\u3002\u53e6\u4e00\u4e2a\u8282\u70b9\u4e0a\u7684\u8fdc\u7a0b\u4fa6\u542c\u5668\u3002\u5f53 listener \u7684\u534f\u8bae\u5730\u5740\u5728 listener.ora \u6587\u4ef6\u4e2d\u6307\u5b9a\uff0c\u5e76\u4e14\u5728\u521d\u59cb\u5316\u53c2\u6570\u6587\u4ef6\u4e2d\u6307\u5b9a listener \u7684\u4f4d\u7f6e\u65f6\uff0c\u5c31\u4f1a\u53d1\u751f\u540c\u6b65\u3002<\/p>\n<p>\u8981\u8ba9 PMON \u5411\u4e0d\u4f7f\u7528 TCP\/IP \u7aef\u53e3 1521 \u7684\u672c\u5730\u4fa6\u542c\u5668\u6ce8\u518c\uff0c\u8bf7\u5728\u521d\u59cb\u5316\u53c2\u6570\u6587\u4ef6\u4e2d\u914d\u7f6e LOCAL_LISTENER \u53c2\u6570\u4ee5\u5b9a\u4f4d\u672c\u5730\u4fa6\u542c\u5668\u3002<\/p>\n<p>\u5982\u679c\u662fRAC\u8282\u70b9\uff0c\u5b83\u4f1a\u4fa6\u542c\u8be5\u8282\u70b9\u7684 <code>PUBLIC IP<\/code>\u548c <code>VIP<\/code>\uff0c\u5b9e\u4f8b\u5728\u542f\u52a8\u7684\u65f6\u5019\u4f1a\u5411\u672c\u5730\u4fa6\u542c\u5668\u8fdb\u884c\u6ce8\u518c\uff0c\u4e5f\u4f1a\u5411SCAN\u4fa6\u542c\u5668\u6ce8\u518c(\u9650\u4e8e11gR2\u4ee5\u4e0a\u7248\u672c)\u3002\u5982\u679cRAC\u4e2d\u67d0\u4e2a\u8282\u70b9\u53d1\u751f\u6545\u969c\uff0c\u8be5\u8282\u70b9\u7684VIP\u4f1a\u6f02\u79fb\u5230\u5176\u5b83\u8282\u70b9\u3002\u5b89\u88c5\u540e\u9ed8\u8ba4\u7684\u672c\u5730\u4fa6\u542c\u7aef\u53e3\u4e3a1521\u3002\u6ce8\u610f\u672c\u5730\u4fa6\u542c\u5668\u4e0d\u4f1a\u53d1\u751f\u6f02\u79fb\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_%E5%A6%82%E4%BD%95%E9%85%8D%E7%BD%AE%E4%BE%A6%E5%90%AC\"><\/span>4. \u5982\u4f55\u914d\u7f6e\u4fa6\u542c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"41_listenerora-%E4%B8%BB%E8%A6%81%E8%B4%9F%E8%B4%A3%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%E7%9A%84%E4%BE%A6%E5%90%AC%E9%85%8D%E7%BD%AE\"><\/span>4.1. listener.ora-\u4e3b\u8981\u8d1f\u8d23\u670d\u52a1\u5668\u7aef\u7684\u4fa6\u542c\u914d\u7f6e<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>1\uff09\u914d\u7f6e\u7684\u57fa\u672c\u6a21\u677f<\/p>\n<pre><code># listener.ora Network Configuration File: \/home\/oracle\/app\/product\/11\/db\/network\/admin\/listener.ora\n# Generated by Oracle configuration tools.\n\nLISTENER_ORA =               \uff08\u6ce8\uff1aLISTENER_ORA \u4e3a\u4fa6\u542c\u540d\u5b57\uff09\n(DESCRIPTION_LIST =\n  (DESCRIPTION =\n      (ADDRESS = (PROTOCOL = TCP)(HOST = 12.1.4.5)(PORT = 1521))\n  )\n)\n\nSID_LIST_LISTENER_ORA =     \uff08\u6ce8\uff1aLISTENER_ORA \u4e3a\u4fa6\u542c\u540d\u5b57\uff09\n(SID_LIST =\n  (SID_DESC =\n    (GLOBAL_DBNAME = wsj)\n    (ORACLE_HOME = \/home\/oracle\/app\/product\/11\/db)\n    (SID_NAME = wsj)\n   )\n)\nADR_BASE_LISTENER = \/oracle\/app\/oracle<\/code><\/pre>\n<p>\u5176\u4e2d\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">\u53c2\u6570\u540d<\/th>\n<th style=\"text-align: left;\">\u53c2\u6570\u542b\u4e49<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\">PROTOCOL<\/td>\n<td style=\"text-align: left;\">\u6307\u7684\u662f\u4fa6\u542c\u63a5\u6536\u94fe\u63a5\u7684\u534f\u8bae<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">HOST<\/td>\n<td style=\"text-align: left;\">\u662f\u6307\u7684\u4fa6\u542c\u8fd0\u884c\u7684\u4e3b\u673a\u6216\u8005IP\u5730\u5740<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">PORT<\/td>\n<td style=\"text-align: left;\">\u6307\u7684\u662f\u4fa6\u542c\u8fd0\u884c\u7684\u7aef\u53e3<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">SID_NAME<\/td>\n<td style=\"text-align: left;\">\u6307\u7684\u662f\u4fa6\u542c\u670d\u52a1\u7684\u5b9e\u4f8b\u540d<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">GLOBAL_NAME<\/td>\n<td style=\"text-align: left;\">\u6307\u7684\u662f\u4fa6\u542c\u670d\u52a1\u7684\u670d\u52a1\u540d<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">ORACLE_HOME<\/td>\n<td style=\"text-align: left;\">\u6307\u7684\u662f\u4fa6\u542c\u670d\u52a1\u7684<code>$ORACLE_HOME<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ol>\n<li>\n<p><span style='color:red'>\u5982\u679c <code>[\u4fa6\u542c\u540d]<\/code> \u548c <code>SID_LIST_[\u4fa6\u542c\u540d]<\/code> \u914d\u7f6e\u662f\u6210\u5bf9\u51fa\u73b0\u7684\uff0c\u8fd9\u4ee3\u8868\u662f\u9759\u6001\u4fa6\u542c\uff1b\u5982\u679c<code>listener.ora<\/code> \u6587\u4ef6\u53ea\u6709 <code>[\u4fa6\u542c\u540d]<\/code> \u7684\u914d\u7f6e\uff0c\u4fa6\u542c\u5c31\u53d8\u6210\u52a8\u6001\u4fa6\u542c\u3002<\/span><\/p>\n<\/li>\n<li>\n<p>\u52a8\u6001\u6ce8\u518c\uff1a\u5ba2\u6237\u7aef\uff08sys\u7528\u6237\uff09\u53ea\u80fd\u5728\u8fdc\u7a0b\u6570\u636e\u5e93\u542f\u52a8\u7684\u60c5\u51b5\u4e0b\u8fde\u63a5\u4e0a\uff0c\u8fdc\u7a0b\u6570\u636e\u5e93\u5173\u95ed\u65f6\u5ba2\u6237\u7aef\u8fde\u63a5\u4e0d\u4e0a\u8fdc\u7a0b\u6570\u636e\u5e93\u3002<\/p>\n<\/li>\n<li>\n<p>\u9759\u6001\u6ce8\u518c\uff1a\u65e0\u8bba\u8fdc\u7a0b\u6570\u636e\u5e93\u5904\u4e8e\u5f00\u542f\u8fd8\u662f\u5173\u95ed\u72b6\u6001\uff0c\u5ba2\u6237\u7aef\uff08sys\u7528\u6237\uff09\u90fd\u53ef\u8fde\u63a5\u4e0a\u3002<\/p>\n<\/li>\n<li>\n<p>\u9759\u6001\u6ce8\u518c\u53ef\u4ee5\u5728\u5ba2\u6237\u7aef\u63a7\u5236\u670d\u52a1\u5668\u7aef\u6570\u636e\u5e93\u7684\u542f\u505c\uff0c\u800c\u52a8\u6001\u6ce8\u518c\u5219\u4e0d\u53ef\u4ee5\uff0c\u52a8\u6001\u6ce8\u518c\u7684\u4fa6\u542c\u5728\u5b9e\u4f8b\u5173\u95ed\u65f6\u4f1a\u88ab\u6ce8\u9500\u3002<\/p>\n<\/li>\n<li>\n<p>\u6570\u636e\u5e93\u5173\u95ed\u7684\u72b6\u6001\u4e0b\uff0c\u53ea\u6709sys\u7528\u6237\u53ef\u8fde\u5165\u6570\u636e\u5e93\uff0c\u5176\u4ed6\u7528\u6237\u4e0d\u53ef\u8fde\u5165\u3002<\/p>\n<\/li>\n<\/ol>\n<p>2\uff09\u5f53 <code>listener.ora<\/code> \u914d\u7f6e\u4e3a\u52a8\u6001\u4fa6\u542c\u65f6<\/p>\n<pre><code>[oracle@localhost ~]$ cd \/oracle\/app\/oracle\/product\/11.2.0\/dbhome_1\/network\/admin\/\n[oracle@localhost admin]$ more listener.ora\n# listener.ora Network Configuration File: \/oracle\/app\/oracle\/product\/11.2.0\/dbhome_1\/network\/admin\/listener.ora\n# Generated by Oracle configuration tools.\n\nLISTENER =\n  (DESCRIPTION_LIST =\n    (DESCRIPTION =\n      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))\n      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))\n    )\n  )\n\nADR_BASE_LISTENER = \/oracle\/app\/oracle<\/code><\/pre>\n<p>3\uff09\u5f53 <code>listener.ora<\/code> \u914d\u7f6e\u4e3a\u9759\u6001\u4fa6\u542c\u65f6<br \/>\n\u67e5\u770blistener.ora  :      <strong>&lt;\u5f53\u914d\u7f6elistener.ora\u4e2dGLOBAL_DBNAME\u7684\u503c  == tnsnames.ora\u4e2d\u7684SERVICE_NAME\uff01\uff01\uff01\uff01\uff01\uff01\uff01\uff01\uff01&gt;<\/strong><\/p>\n<pre><code>[oracle@localhost admin]$ more listener.ora\n# listener.ora Network Configuration File: \/oracle\/app\/oracle\/product\/11.2.0\/dbhome_1\/network\/admin\/listener.ora\n# Generated by Oracle configuration tools.\n\nLISTENER =\n  (DESCRIPTION_LIST =\n    (DESCRIPTION =\n      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))\n      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))\n    )\n  )\n\nADR_BASE_LISTENER = \/oracle\/app\/oracle\n\nSID_LIST_LISTENER =\n(SID_LIST =\n  (SID_DESC =\n    (GLOBAL_DBNAME = mydb)   ## listener.ora \u4e2d GLOBAL_DBNAME \u7684\u503c \u00a0== tnsnames.ora\u4e2d\u7684SERVICE_NAME\n    (ORACLE_HOME = \/oracle\/app\/oracle\/product\/11.2.0\/dbhome_1)\n    (SID_NAME = mydb)  ## \u53ef\u901a\u8fc7env | grep ORACLE \u67e5\u770b SID_NAME \u548c $ORACLE_HOME\u7684\u503c\n  )\n)<\/code><\/pre>\n<h4><span class=\"ez-toc-section\" id=\"42_tnsnamesora-%E4%B8%BB%E8%A6%81%E8%B4%9F%E8%B4%A3%E5%AE%A2%E6%88%B7%E7%AB%AF%E7%9A%84%E4%BE%A6%E5%90%AC%E9%85%8D%E7%BD%AE\"><\/span>4.2. tnsnames.ora-\u4e3b\u8981\u8d1f\u8d23\u5ba2\u6237\u7aef\u7684\u4fa6\u542c\u914d\u7f6e<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>1\uff09\u57fa\u672c\u6a21\u677f\uff1a<\/p>\n<pre><code># tnsnames.ora Network Configuration File: \/home\/oracle\/app\/product\/11\/db\/network\/admin\/tnsnames.ora\n# Generated by Oracle configuration tools.\n\n# RCL\u4e3a\u5b9e\u4f8b\u540d\nRCL =\n(DESCRIPTION =\n  (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.30.2)(PORT = 1521)) \u00a0 #TNSNAME\u00a0\u5bf9\u5e94\u7684\u4e3b\u673a\uff0c\u7aef\u53e3\uff0c\u534f\u8bae\n  (CONNECT_DATA =\n    (SERVER = DEDICATED)\n    (SERVICE_NAME = mydb) \u00a0 \u00a0#\u53ef\u901a\u8fc7show parameter service_name;\u67e5\u8be2service_name\u00a0\u914d\u7f6elistener.ora\u4e2dGLOBAL_DBNAME\u7684\u503c \u00a0== tnsnames.ora\u4e2d\u7684SERVICE_NAME   )\n)<\/code><\/pre>\n<p>\u5176\u4e2d\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">\u53c2\u6570\u540d<\/th>\n<th style=\"text-align: left;\">\u53c2\u6570\u542b\u4e49<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\">PROTOCOL<\/td>\n<td style=\"text-align: left;\">\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u7aef\u901a\u8baf\u7684\u534f\u8bae\uff0c\u4e00\u822c\u4e3aTCP \uff0c\u8be5\u5185\u5bb9\u4e00\u822c\u4e0d\u7528\u6539\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">HOST<\/td>\n<td style=\"text-align: left;\">\u6570\u636e\u5e93\u4fa6\u542c\u6240\u5728\u7684\u673a\u5668\u7684\u673a\u5668\u540d\u6216IP \u5730\u5740\uff0c\u6570\u636e\u5e93\u4fa6\u542c\u4e00\u822c\u4e0e\u6570\u636e\u5e93\u5728\u540c\u4e00\u4e2a\u673a\u5668\u4e0a\uff0c\u6240\u4ee5\u5f53\u6211\u8bf4\u6570\u636e\u5e93\u4fa6\u542c\u6240\u5728\u7684\u673a\u5668\u4e00\u822c\u4e5f\u662f\u6307\u6570\u636e\u5e93\u6240\u5728\u7684\u673a\u5668\u3002\u5728UNIX \u6216WINDOWS \u4e0b\uff0c\u53ef\u4ee5\u901a\u8fc7\u5728\u6570\u636e\u5e93\u4fa6\u542c\u6240\u5728\u7684\u673a\u5668\u7684\u547d\u4ee4\u63d0\u793a\u7b26\u4e0b\u4f7f\u7528 <code>hostname<\/code> \u547d\u4ee4\u5f97\u5230\u673a\u5668\u540d\uff0c\u6216\u901a\u8fc7 <code>ipconfig(for WINDOWS) or ifconfig \uff08for UNIX \uff09<\/code> \u547d\u4ee4\u5f97\u5230IP \u5730\u5740\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4e0d\u7ba1\u7528\u673a\u5668\u540d\u6216IP \u5730\u5740\uff0c\u5728\u5ba2\u6237\u7aef\u4e00\u5b9a\u8981\u7528 ping \u547d\u4ee4 ping \u901a\u6570\u636e\u5e93\u4fa6\u542c\u6240\u5728\u7684\u673a\u5668\u7684\u673a\u5668\u540d\uff0c\u5426\u5219\u9700\u8981\u5728 hosts \u6587\u4ef6\u4e2d\u52a0\u5165\u6570\u636e\u5e93\u4fa6\u542c\u6240\u5728\u7684\u673a\u5668\u7684\u673a\u5668\u540d\u7684\u89e3\u6790\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">PORT<\/td>\n<td style=\"text-align: left;\">\u6570\u636e\u5e93\u4fa6\u542c\u6b63\u5728\u4fa6\u542c\u7684\u7aef\u53e3\uff0c\u53ef\u4ee5\u5bdf\u770b\u670d\u52a1\u5668\u7aef\u7684listener.ora \u6587\u4ef6\u6216\u5728\u6570\u636e\u5e93\u4fa6\u542c\u6240\u5728\u7684\u673a\u5668\u7684\u547d\u4ee4\u63d0\u793a\u7b26\u4e0b\u901a\u8fc7lnsrctl status [listener name] \u547d\u4ee4\u5bdf\u770b\u3002\u6b64\u5904Port \u7684\u503c\u4e00\u5b9a\u8981\u4e0e\u6570\u636e\u5e93\u4fa6\u542c\u6b63\u5728\u4fa6\u542c\u7684\u7aef\u53e3\u4e00\u6837\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">SERVICE_NAME<\/td>\n<td style=\"text-align: left;\">\u5728\u670d\u52a1\u5668\u7aef\uff0c\u7528system \u7528\u6237\u767b\u9646\u540e\uff0c<code>sqlplus&gt; show parameter service_name<\/code> \u547d\u4ee4\u5bdf\u770b\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">RCL<\/td>\n<td style=\"text-align: left;\">\u5bf9\u5e94\u7684\u672c\u673a\uff0cSALES \u5bf9\u5e94\u7684\u53e6\u5916\u4e00\u4e2aIP \u5730\u5740\uff0c\u91cc\u8fb9\u8fd8\u5b9a\u4e49\u4e86\u4f7f\u7528\u4e3b\u7528\u670d\u52a1\u5668\u8fd8\u662f\u5171\u4eab\u670d\u52a1\u5668\u6a21\u5f0f\u8fdb\u884c\u8fde\u63a5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4><span class=\"ez-toc-section\" id=\"43_sqlnetora\"><\/span>4.3. sqlnet.ora<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u662f\u9a7b\u7559\u5728\u5ba2\u6237\u7aef\u673a\u5668\u548c\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u3002\u4f7f\u7528\u8be5\u6587\u4ef6\u5b58\u50a8\u548c\u5b9e\u73b0\u6982\u8981\u6587\u4ef6\u3002\u6570\u636e\u5e93\u670d\u52a1\u5668\u53ef\u4ee5\u5728sqlnet.ora\u6587\u4ef6\u4e2d\u914d\u7f6e\u8bbf\u95ee\u63a7\u5236\u53c2\u6570\u3002\u8fd9\u4e9b\u53c2\u6570\u6307\u5b9a\u57fa\u4e8e\u534f\u8bae\u7684\u5ba2\u6237\u673a\u662f\u5426\u5141\u8bb8\u6216\u62d2\u7edd\u8bbf\u95ee\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">\u53c2\u6570\u540d<\/th>\n<th style=\"text-align: left;\">\u53c2\u6570\u542b\u4e49<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\">BEQUEATH_DETACH<\/td>\n<td style=\"text-align: left;\">\u63a7\u5236unix\u7cfb\u7edf\u4e2d <code>signal handling<\/code> \u7684\u5f00\u5173\uff0c\u9ed8\u8ba4\u662f no\uff0c\u5373signal handling \u6253\u5f00\u3002DEFAULT_SDU_SIZE\uff1a\u6307\u5b9asession data unit (SDU) \u7684\u5927\u5c0f\uff0c\u5355\u4f4d\u662fbytes\uff0c\u5efa\u8bae\u5728client\u7aef\u548cserver\u7aef\u90fd\u8bbe\u7f6e\u8fd9\u4e2a\u53c2\u6570\uff0c\u786e\u4fdd\u94fe\u63a5\u7684\u65f6\u5019\u4f7f\u7528\u76f8\u540c\u7684SDU size\uff0c\u5982\u679cclient\u7aef\u548cserver\u7aef\u914d\u7f6e\u7684\u503c\u4e0d\u5339\u914d\u4f1a\u4f7f\u7528\u8f83\u5c0f\u7684\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">LOG_DIRECTORY_CLIENT\/LOG_DIRECTORY_SERVER<\/td>\n<td style=\"text-align: left;\">\u6307\u5b9a\u5ba2\u6237\u7aef\/server\u7aeflog\u65e5\u5fd7\u6587\u4ef6\u7684\u4f4d\u7f6e<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">NAMES.DEFAULT_DOMAIN<\/td>\n<td style=\"text-align: left;\">\u8bbe\u5b9a\u5ba2\u6237\u7aef\u89e3\u6790\u540d\u5b57\u7684\u57df<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">NAMES.DIRECTORY_PATH<\/td>\n<td style=\"text-align: left;\">\u6307\u5b9aclient name\u89e3\u6790\u65b9\u6cd5\u7684\u6b21\u5e8f\uff0c\u9ed8\u8ba4\u662f `NAMES.DIRECTORY_PATH=(tnsnames, onames, hostname)\u3002\u53d6\u503c\u53ef\u4ee5\u662ftnsnames,ldap\uff08dictionary server),hostname\/ezconnect,cds (\u5206\u5e03\u5f0f\u73af\u5883\u4e0b\uff09\uff0cnis (Network Information Service (NIS)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">SQLNET_ALLOWED_LOGON_VERSIONS<\/td>\n<td style=\"text-align: left;\">\u6307\u5b9a\u8fd0\u884c\u94fe\u63a5\u7684oracle\u7684\u7248\u672cSQLNET_ALLOWED_LOGON_VERSIONS=(10,9,8)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">SQLNET.AUTHENTICATION_SERVICES<\/td>\n<td style=\"text-align: left;\">\u6307\u5b9a\u542f\u52a8\u4e00\u4e2a\u6216\u591a\u4e2a\u8ba4\u8bc1\u670d\u52a1<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">SQLNET.INBOUND_CONNECT_TIMEOUT<\/td>\n<td style=\"text-align: left;\">\u6307\u5b9a\u5ba2\u6237\u7aef\u6ca1\u6709\u94fe\u63a5\u6210\u529f\u8d85\u65f6\u7684\u65f6\u95f4\u3002\u8d85\u65f6\u4e4b\u540eoracle\u4f1a\u4e2d\u65ad\u94fe\u63a5\uff0c\u540c\u65f6\u62a5\u9519\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">SSL_VERSION<\/td>\n<td style=\"text-align: left;\">\u6307\u5b9assl\u94fe\u63a5\u7684\u7248\u672c<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">TCP.EXCLUDED_NODES<\/td>\n<td style=\"text-align: left;\">\u6307\u5b9a\u4e0d\u5141\u8bb8\u8bbf\u95eeoracle\u7684\u8282\u70b9\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e3b\u673a\u540d\u6216\u8005IP\u5730\u5740<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">TCP.INVITED_NODES<\/td>\n<td style=\"text-align: left;\">\u6307\u5b9a\u5141\u8bb8\u8bbf\u95eedb\u7684\u5ba2\u6237\u7aef\uff0c\u4ed6\u7684\u4f18\u5148\u7ea7\u6bd4TCP.EXCLUDED_NODES\u9ad8\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">TCP.VALIDNODE_CHECKING<\/td>\n<td style=\"text-align: left;\">\u4f7f\u7528\u8fd9\u4e2a\u53c2\u6570\u6765\u542f\u7528\u4e0a\u8fb9\u7684\u4e24\u4e2a\u53c2\u6570\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">TNSPING.TRACE_DIRECTORY<\/td>\n<td style=\"text-align: left;\">\u4f7f\u7528\u8fd9\u4e2a\u53c2\u6570\u6307\u5b9atnsping trace\u6587\u4ef6\u7684\u76ee\u5f55\uff0c\u9ed8\u8ba4\u662f<code>$ORACLE_HOME\/network\/trace<\/code> \u76ee\u5f55<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"5_%E4%BD%BF%E7%94%A8_SCANs_%E5%88%9B%E5%BB%BA%E6%95%B0%E6%8D%AE%E5%BA%93%E8%BF%9E%E6%8E%A5%E7%A4%BA%E4%BE%8B\"><\/span>5. \u4f7f\u7528 SCANs \u521b\u5efa\u6570\u636e\u5e93\u8fde\u63a5\u793a\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u73b0\u5728\u8ba9\u6211\u4eec\u501f\u52a9\u4e0b\u56fe\u6765\u4e86\u89e3 SCAN \u7684\u67b6\u6784\uff0c\u8be5\u56fe\u670d\u52a1\u4e8e\u6765\u81ea\u5e94\u7528\u670d\u52a1\u5668\u7684\u7528\u6237\u8bf7\u6c42:<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/06\/image-1654741602703.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/06\/image-1654741602703.png\" alt=\"file\" \/><\/a><br \/>\n\u5047\u8bbe\uff1a<\/p>\n<ul>\n<li>4 \u8282\u70b9 RAC<\/li>\n<li>3 \u4e2a SCAN \u4fa6\u542c\u5668<\/li>\n<li>\u6b63\u5728\u4f7f\u7528\u7684 DNS \u670d\u52a1\u5668<\/li>\n<li>\u5e94\u7528\u7a0b\u5e8f\u7684 TNS \u4f7f\u7528 SCAN_LISTENER \u4f5c\u4e3a\u4e3b\u673a\u540d<\/li>\n<li>\u6570\u636e\u5e93\u662f\u65b0\u7684\uff0c\u6ca1\u6709\u8fde\u63a5<\/li>\n<\/ul>\n<p>\u5ba2\u6237\u7aef\u5b9e\u73b0\u4e0e\u670d\u52a1\u7aef\u5efa\u7acb\u8fde\u63a5\u7684\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>0 \u79d2\uff1a\u5f53\u7528\u6237 1 \u5c1d\u8bd5\u4f7f\u7528\u8fde\u63a5\u8bf7\u6c42 C1 \u5728\u6570\u636e\u5e93\u4e0a\u5efa\u7acb\u4f1a\u8bdd\u65f6\uff0c\u5b83\u9996\u5148\u8bbf\u95ee DNS \u670d\u52a1\u5668\u3002<\/li>\n<li>\u7136\u540e DNS \u670d\u52a1\u5668\u4f1a\u5c06\u540d\u79f0 <code>SCAN_LISTENER<\/code> \u89e3\u6790\u4e3a\u7b2c\u4e00\u4e2a IP <code>192.168.122.5<\/code><\/li>\n<li>C1 \u8bf7\u6c42\u5230\u8fbe\u7b2c\u4e00\u4e2a\u626b\u63cf\u4fa6\u542c\u5668 SCAN1\uff0c\u9ed8\u8ba4\u540d\u79f0\u5c06\u662f <code>LISTENER_SCAN1<\/code>\uff0c\u5b83\u5728 <code>192.168.122.5 SCAN VIP<\/code> \u4e0a\u8fd0\u884c\u3002<\/li>\n<li>SCAN1 \u4f7f\u7528\u6765\u81ea LBA \u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bc6\u522b\u8bbe\u7f6e\u4e2d\u6bcf\u4e2a\u8282\u70b9\u4e0a\u7684\u8d1f\u8f7d\uff0c\u5e76\u5c06\u8bf7\u6c42 C1 \u8def\u7531\u5230\u8d1f\u8f7d\u6700\u5c0f\u7684\u8282\u70b9\u3002<\/li>\n<li>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5b83\u6070\u597d\u662f\u8d1f\u8f7d\u6700\u5c11\u6216\u65e0\u8d1f\u8f7d\u7684\u8282\u70b9 2\uff0c\u5e76\u4e14 C1 \u8bf7\u6c42\u7531\u8be5\u8282\u70b9\u4e0a\u7684\u672c\u5730\u4fa6\u542c\u5668\u5904\u7406\uff0c\u8fd9\u6709\u52a9\u4e8e C1 \u5728\u8282\u70b9 2 \u4e0a\u7684\u5b9e\u4f8b\u4e0a\u5efa\u7acb\u4f1a\u8bdd\u3002<\/li>\n<li>\u7b2c 5 \u79d2\uff1a\u5f53\u7528\u6237 2 \u5c1d\u8bd5\u4f7f\u7528\u8fde\u63a5\u8bf7\u6c42 C2 \u5728\u6570\u636e\u5e93\u4e0a\u5efa\u7acb\u4f1a\u8bdd\u65f6\uff0c\u5b83\u9996\u5148\u547d\u4e2d DNS \u670d\u52a1\u5668\u3002<\/li>\n<li>DNS \u670d\u52a1\u5668\u73b0\u5728\u5c06\u4f7f\u7528\u5faa\u73af\u7b97\u6cd5\u5e76\u5c06\u540d\u79f0 <code>SCAN_LISTENER<\/code> \u89e3\u6790\u4e3a\u7b2c\u4e8c\u4e2a IP <code>192.168.122.6<\/code><\/li>\n<li>C2 \u8bf7\u6c42\u5230\u8fbe\u7b2c\u4e8c\u4e2a\u626b\u63cf\u4fa6\u542c\u5668 SCAN2\uff0c\u9ed8\u8ba4\u540d\u79f0\u5c06\u662f<code>LISTENER_SCAN2<\/code>\uff0c\u5b83\u5728 <code>192.168.122.6 SCAN VIP<\/code> \u4e0a\u8fd0\u884c\u3002<\/li>\n<li>SCAN2 \u4f7f\u7528\u6765\u81ea LBA \u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bc6\u522b\u8bbe\u7f6e\u4e2d\u6bcf\u4e2a\u8282\u70b9\u4e0a\u7684\u8d1f\u8f7d\uff0c\u5e76\u5c06\u8bf7\u6c42 C2 \u8def\u7531\u5230\u8d1f\u8f7d\u6700\u5c0f\u7684\u8282\u70b9\u3002<\/li>\n<li>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5b83\u6070\u597d\u662f\u8d1f\u8f7d\u6700\u5c11\u6216\u65e0\u8d1f\u8f7d\u7684\u8282\u70b9 1\uff0c\u5e76\u4e14 C2 \u8bf7\u6c42\u7531\u8be5\u8282\u70b9\u4e0a\u7684\u672c\u5730\u4fa6\u542c\u5668\u5904\u7406\uff0c\u8fd9\u6709\u52a9\u4e8e C2 \u5728\u8282\u70b9 1 \u4e0a\u7684\u5b9e\u4f8b\u4e0a\u5efa\u7acb\u4f1a\u8bdd\u3002<\/li>\n<\/ol>\n<p><span style='color:red'> \u76f8\u540c\u7684\u5faa\u73af\u548c\u539f\u7406\u9002\u7528\u4e8e\u5176\u4ed6 3 \u4e2a\u8fde\u63a5\u8bf7\u6c42 C3\u3001C4 \u548c C5 <\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E9%99%84%E5%BD%95%EF%BC%9A%E5%85%B3%E8%81%94%E6%88%96%E5%8F%82%E8%80%83%E6%96%87%E6%A1%A3\"><\/span>\u9644\u5f55\uff1a\u5173\u8054\u6216\u53c2\u8003\u6587\u6863<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"A_%E5%8F%82%E8%80%83\"><\/span>A. \u53c2\u8003<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>SCAN \u4fa6\u542c\u5668\u5728 Oracle RAC 11gR2 \u4e2d\u5982\u4f55\u5de5\u4f5c\uff1a<a target=\"_blank\" href=\"https:\/\/www.orskl.com\/how-does-scan-listener-works-in-oracle-rac-11gr2\/\">https:\/\/www.orskl.com\/how-does-scan-listener-works-in-oracle-rac-11gr2\/<\/a><br \/>\nSCAN,VIP,Local Listener,Remote Listener\u4e4b\u95f4\u7684\u5173\u7cfb\uff1a<a target=\"_blank\" href=\"http:\/\/www.ohsdba.cn\/index.php?m=Article&amp;a=show&amp;id=67\">http:\/\/www.ohsdba.cn\/index.php?m=Article&a=show&id=67<\/a><\/p>\n<h4><span class=\"ez-toc-section\" id=\"B_%E5%8D%95%E5%AE%9E%E4%BE%8B%E4%BE%A6%E5%90%AC%E5%99%A8%E5%B7%A5%E4%BD%9C%E6%B5%81%E7%A8%8B\"><\/span>B. \u5355\u5b9e\u4f8b\u4fa6\u542c\u5668\u5de5\u4f5c\u6d41\u7a0b<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/06\/image-1654747523285.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/06\/image-1654747523285.png\" alt=\"file\" \/><\/a><\/p>\n<p>\u5ba2\u6237\u7aef\u901a\u8fc7\u4fa6\u542c\u5668\u5efa\u7acb\u8fde\u63a5\u7684\u57fa\u672c\u6b65\u9aa4\u662f\uff1a<\/p>\n<ol>\n<li>\u5ba2\u6237\u7aef\u8fdb\u7a0b\u6216\u53e6\u4e00\u4e2a\u6570\u636e\u5e93\u8bf7\u6c42\u8fde\u63a5\u3002<\/li>\n<li>\u4fa6\u542c\u5668\u9009\u62e9\u4e00\u4e2a\u5408\u9002\u7684\u670d\u52a1\u5904\u7406\u5668\u6765\u670d\u52a1\u5ba2\u6237\u7aef\u8bf7\u6c42\u5e76\u5c06\u8bf7\u6c42\u8f6c\u53d1\u7ed9\u5904\u7406\u5668\u3002<\/li>\n<li>\u5ba2\u6237\u7aef\u8fdb\u7a0b\u76f4\u63a5\u8fde\u63a5\u5230\u670d\u52a1\u5904\u7406\u7a0b\u5e8f\u3002 \u6536\u542c\u8005\u4e0d\u518d\u53c2\u4e0e\u901a\u4fe1\u3002<\/li>\n<\/ol>\n<h4><span class=\"ez-toc-section\" id=\"C_%E5%85%B3%E8%81%94%E7%9A%84%E6%96%87%E6%A1%A3\"><\/span>C. \u5173\u8054\u7684\u6587\u6863<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u6e05\u7406Oracle\u76d1\u542c\u65e5\u5fd7\uff1a<a target=\"_blank\" href=\"http:\/\/dba.qishuo.xin\/?p=411\">http:\/\/dba.qishuo.xin\/?p=411<\/a><br \/>\nOracle RAC \u4fee\u6539\u76d1\u542c (listener)\u7aef\u53e3\uff1a<a target=\"_blank\" href=\"http:\/\/dba.qishuo.xin\/?p=1152\">http:\/\/dba.qishuo.xin\/?p=1152<\/a><br \/>\n\u4f7f\u7528\u811a\u672c\u5206\u6790Oracle listener\u65e5\u5fd7\uff1a<a target=\"_blank\" href=\"http:\/\/dba.qishuo.xin\/?p=417\">http:\/\/dba.qishuo.xin\/?p=417<\/a><br \/>\nORA-12516:TNS:\u76d1\u542c\u7a0b\u5e8f\u627e\u4e0d\u5230\u7b26\u5408\u534f\u8bae\u5806\u6808\u8981\u6c42\u7684\u53ef\u7528\u5904\u7406\u7a0b\u5e8f\uff1a<a target=\"_blank\" href=\"http:\/\/dba.qishuo.xin\/?p=1383\">http:\/\/dba.qishuo.xin\/?p=1383<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u53c2\u8003Oracle\u5b98\u7f51\uff1ahttps:\/\/docs.o&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,24],"tags":[159,16,217,218],"class_list":["post-1755","post","type-post","status-publish","format-standard","hentry","category-oracle","category-24","tag-listener","tag-oracle","tag-scans","tag-218"],"_links":{"self":[{"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=\/wp\/v2\/posts\/1755","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1755"}],"version-history":[{"count":25,"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=\/wp\/v2\/posts\/1755\/revisions"}],"predecessor-version":[{"id":1789,"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=\/wp\/v2\/posts\/1755\/revisions\/1789"}],"wp:attachment":[{"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1755"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1755"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1755"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}