{"id":6862,"date":"2021-09-30T15:03:56","date_gmt":"2021-09-30T07:03:56","guid":{"rendered":"https:\/\/nj.transwarp.cn:8180\/?p=6862"},"modified":"2022-06-30T18:47:03","modified_gmt":"2022-06-30T10:47:03","slug":"hdfs-%e4%bb%8e-namenode-%e8%8a%82%e7%82%b9%e8%8e%b7%e5%8f%96%e6%9c%80%e6%96%b0%e7%9a%84-fsimage-%e6%96%87%e4%bb%b6%e8%87%b3%e6%9c%ac%e5%9c%b0%e7%9b%ae%e5%bd%95","status":"publish","type":"post","link":"https:\/\/kbwp.transwarp.cn\/?p=6862","title":{"rendered":"HDFS \u4ece Namenode \u8282\u70b9\u83b7\u53d6\u6700\u65b0\u7684 fsimage \u6587\u4ef6\u81f3\u672c\u5730\u76ee\u5f55"},"content":{"rendered":"

\u6982\u8981\u63cf\u8ff0<\/h3>\n

\u672c\u6587\u4e3b\u8981\u63cf\u8ff0\u4e86\u5982\u4f55\u4f7f\u7528 HDFS \u7684 dfsadmin \u7ba1\u7406\u5458\u5de5\u5177\u4ece Namenode \u8282\u70b9\u83b7\u53d6\u6700\u65b0\u7684 fsimage \u6587\u4ef6\u81f3\u672c\u5730\u6307\u5b9a\u76ee\u5f55\u3002<\/p>\n

\n

\u8be6\u7ec6\u8bf4\u660e<\/h3>\n

\u73af\u5883\u8981\u6c42<\/h4>\n

\u5fc5\u987b\u5728 Datanode<\/strong> \u8282\u70b9\u8fdb\u884c\u64cd\u4f5c\uff0c\u4e14\u5fc5\u987b\u5df2\u7ecf\u5b89\u88c5\u4e86 TDH Client \u5e76\u6fc0\u6d3b\u4e86\u73af\u5883\u3002\u672c\u6587\u4e2d\u7684 HDFS \u670d\u52a1\u7684 SID \u4ee51\u4e3a\u4f8b\uff0c\u53ef\u6839\u636e\u96c6\u7fa4\u5b9e\u9645\u60c5\u51b5\u4fee\u6539\u3002<\/p>\n

\u8eab\u4efd\u8ba4\u8bc1<\/h4>\n

\u5982\u679c TDH \u96c6\u7fa4\u5f00\u542f\u4e86 Guardian \u5b89\u5168\uff0c\u90a3\u4e48\u9700\u8981\u8fdb\u884c\u8eab\u4efd\u8ba4\u8bc1\uff0c\u5426\u5219\u8bf7\u5ffd\u7565\u672c\u6b65\u9aa4\uff0c\u76f4\u63a5\u8fdb\u884c\u4e0b\u4e00\u6b65\u3002<\/p>\n

\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u672c\u64cd\u4f5c\u5fc5\u987b<\/strong>\u4f7f\u7528\u670d\u52a1\u7ea7\u522b\u7684\u8ba4\u8bc1\uff0c\u5373\u5fc5\u987b\u4f7f\u7528 HDFS \u670d\u52a1\u4e2d\u7684 keytab \uff0c\u800c\u4e0d\u80fd\u4f7f\u7528\u4ece Guardian Server \u4e2d\u4e0b\u8f7d\u7684\u4efb\u4f55\u79df\u6237\u7684 keytab \u3002<\/p>\n

1\u3001\u53ef\u4ee5\u4f7f\u7528 klist -kt \/etc\/hdfs1\/conf\/hdfs.keytab<\/code> \u67e5\u770b principal \uff0c\u5e76\u8bb0\u4f4f\u8be5 principal \u3002<\/p>\n

2\u3001\u7136\u540e\u4f7f\u7528 kinit -kt \/etc\/hdfs1\/conf\/hdfs.keytab <principal_name><\/code> \u8fdb\u884c\u8eab\u4efd\u8ba4\u8bc1\uff0c\u6b64\u5904\u7684 <principal_name><\/code> \u4e3a\u4e0a\u9762\u83b7\u53d6\u7684\u3002<\/p>\n

\u6267\u884c\u547d\u4ee4<\/h4>\n

\u4f7f\u7528 hdfs dfsadmin -fetchImage <target_dir><\/code> \u547d\u4ee4\u4ece Namenode \u8282\u70b9\u83b7\u53d6\u6700\u65b0\u7684 fsimage \u6587\u4ef6\u81f3\u672c\u5730\u6307\u5b9a\u76ee\u5f55\uff0c<target_dir><\/code> \u5373\u4e3a\u76ee\u5f55\u7684\u8def\u5f84\u3002<\/p>\n

\u5982\u679c\u6b64\u65f6\u51fa\u73b0\u62a5\u9519 Only Namenode, Secondary Namenode, and administrators may access this servlet<\/code> \uff0c\u90a3\u4e48\u5c31\u8bf4\u660e\u662f\u4e0a\u4e00\u6b65\u7684\u8eab\u4efd\u8ba4\u8bc1\u6ca1\u6709\u505a\u597d\uff0c\u9700\u8981\u5148\u8fdb\u884c\u8eab\u4efd\u8ba4\u8bc1\u518d\u6267\u884c\u64cd\u4f5c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6982\u8981\u63cf\u8ff0 \u672c\u6587\u4e3b\u8981\u63cf\u8ff0\u4e86\u5982\u4f55\u4f7f\u7528 HDFS \u7684 dfsadmin \u7ba1\u7406\u5458\u5de5\u5177\u4ece Namenode \u8282\u70b9\u83b7\u53d6\u6700\u65b0 ..<\/p>\n

<\/div>\n

Read more<\/a><\/p>\n","protected":false},"author":81,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38],"tags":[],"class_list":["post-6862","post","type-post","status-publish","format-standard","hentry","category-configuration"],"acf":[],"_links":{"self":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/6862","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/users\/81"}],"replies":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6862"}],"version-history":[{"count":2,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/6862\/revisions"}],"predecessor-version":[{"id":7747,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/6862\/revisions\/7747"}],"wp:attachment":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6862"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6862"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6862"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}