{"id":2276,"date":"2026-02-03T10:51:20","date_gmt":"2026-02-03T02:51:20","guid":{"rendered":"https:\/\/nj.transwarp.cn:8180\/?p=2276"},"modified":"2026-02-03T10:51:20","modified_gmt":"2026-02-03T02:51:20","slug":"sql%e6%89%a7%e8%a1%8c%e5%81%b6%e5%8f%91%e6%8a%a5%e9%94%99%ef%bc%9aorg-apache-hadoop-hdfs-blockmissingexception-could-not-obtain-block","status":"publish","type":"post","link":"https:\/\/kbwp.transwarp.cn\/?p=2276","title":{"rendered":"SQL\u6267\u884c\u5076\u53d1\u62a5\u9519\uff1aorg.apache.hadoop.hdfs.BlockMissingException: Could not obtain block"},"content":{"rendered":"<h3>\u6982\u8981\u63cf\u8ff0<\/h3>\n<hr \/>\n<p>\u6267\u884cSQL\u8dd1\u6279\u65f6\uff0c\u4f1a\u5076\u53d1\u7684\u62a5\u9519\uff1a <strong>org.apache.hadoop.hdfs.BlockMissingException: Could not obtain block<\/strong> \uff0c\u91cd\u65b0\u6267\u884c\u65f6\u53ef\u4ee5\u6210\u529f\u6267\u884c\uff0c\u53d1\u751f\u8be5\u95ee\u9898\u65f6\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u6392\u67e5\u6b65\u9aa4\u3002<\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/02\/image-1581470441459.png\" alt=\"file\" \/><\/p>\n<h3>\u8be6\u7ec6\u8bf4\u660e<\/h3>\n<hr \/>\n<h4>\u68c0\u67e5hdfs\u72b6\u6001\u662f\u5426\u6b63\u5e38<\/h4>\n<p>\u901a\u8fc7 <code>hdfs fsck \/<\/code> \u547d\u4ee4\u68c0\u67e5hdfs\u662f\u5426\u771f\u7684\u6709\u5757\u4e22\u5931\u6216\u635f\u574f\uff1b\u6839\u636e\u4e0b\u9762\u622a\u56fe\u6240\u793a\uff0chdfs\u7684\u6587\u4ef6\u548c\u76ee\u5f55\u90fd\u5904\u4e8e\u5065\u5eb7\u72b6\u6001\u3002<\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/02\/image-1581470647023.png\" alt=\"file\" \/><\/p>\n<h4>\u68c0\u67e5\u662f\u5426\u80fdget\u5230\u62a5\u9519\u4fe1\u606f\u4e2d\u63d0\u793a\u7684\u6587\u4ef6<\/h4>\n<p>\u6267\u884chdfs\u547d\u4ee4\u5c06hdfs\u6587\u4ef6get\u5230\u672c\u5730\uff1b\u6839\u636e\u4e0b\u9762\u622a\u56fe\u6240\u793a\uff0chdfs\u7684\u6587\u4ef6\u53ef\u4ee5\u6b63\u5e38get\u5230\u672c\u5730<\/p>\n<pre><code class=\"language-shell\">hdfs dfs -get \/inceptor1\/user\/hive\/warehouse\/sdm.db\/hive\/s_assessment_instance_new\/base_2066065\/bucket_00063<\/code><\/pre>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/02\/image-1581472667144.png\" alt=\"file\" \/><\/p>\n<h4>\u786e\u5b9a\u62a5\u9519block\u6240\u5728\u7684datanode\uff0c\u67e5\u770b\u8be6\u7ec6\u62a5\u9519\u65e5\u5fd7<\/h4>\n<p>\u6267\u884chdfs\u547d\u4ee4\u627e\u5230\u62a5\u9519\u7684block\u6240\u5728\u7684datanode\u8282\u70b9\uff1b\u6839\u636e\u4e0b\u9762\u622a\u56fe\u6240\u793a\uff0chdfs\u7684block\u6240\u5728\u7684datanode\u8282\u70b9\u662f\uff1a <code>158.1.233.83\u3001158.1.233.80\u3001158.1.233.77<\/code> \u3002<\/p>\n<pre><code class=\"language-shell\">hdfs fsck \/inceptor1\/user\/hive\/warehouse\/sdm.db\/hive\/s_assessment_instance_new\/base_2066065\/bucket_00063<\/code><\/pre>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/02\/image-1581473666239.png\" alt=\"file\" \/><\/p>\n<p>\u767b\u5f55\u4e0a\u97623\u4e2adatanode\u8282\u70b9\u67e5\u770bdatanode\u7684\u65e5\u5fd7\uff1a<code>\/var\/log\/hdfs1\/hadoop-hdfs-datanode-xxx.log<\/code>\uff0c\u53ef\u4ee5\u770b\u5230\u65e5\u5fd7\u4e2d\u6709\u5176\u4ed6\u7684\u62a5\u9519\u4fe1\u606f\uff1a<code>DataXceiverServer: java.io.IOException:Xceiver count 6145 exceeds the limit od concurrent xcievers:6144<\/code><\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/02\/image-1581473896216.png\" alt=\"file\" \/><\/p>\n<h4>\u89e3\u51b3\u65b9\u6848<\/h4>\n<p>\u6839\u636e\u4e0a\u8ff0\u62a5\u9519\uff0c\u53ef\u4ee5\u786e\u5b9a\u662f\u8bf7\u6c42\u7ebf\u7a0b\u6570\u5927\u4e8e\u73b0\u6709\u914d\u7f6e\u7684 <code>6144<\/code>\uff0c\u6240\u4ee5\u629b\u4e86\u5f02\u5e38\uff1b<\/p>\n<p>\u68c0\u67e5\u53c2\u6570 <code>dfs.datanode.max.transfer.threads<\/code>  \u7684\u503c\uff0c\u5982\u679c\u6ca1\u6709\u989d\u5916\u914d\u7f6e\u7684\u8bdd\uff0c\u8be5\u503c\u9ed8\u8ba4\u662f <code>4096<\/code> \uff0c\u53ef\u4ee5\u5728manager\u9875\u9762\u7684hdfs\u53c2\u6570\u914d\u7f6e\u4e2d\u67e5\u770b\u4e0b\u662f\u5426\u6709\u989d\u5916\u914d\u7f6e\u3002<\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/02\/image-1581479868436.png\" alt=\"file\" \/><\/p>\n<p>\u6839\u636e\u4e0b\u9762\u622a\u56fe\u53ef\u4ee5\u770b\u5230\uff0c\u6709\u989d\u5916\u914d\u7f6e\u6539\u53c2\u6570\u7684\u503c\u4e3a <code>6144<\/code> \uff0c\u4e0edatanode\u65e5\u5fd7\u4e2d\u63d0\u793a\u7684\u4e00\u6837\uff0c\u5c06\u8be5\u503c\u8c03\u5927\u5230 <code>8192<\/code> \uff0c\u7136\u540e\u914d\u7f6e hdfs \u670d\u52a1\uff0c\u5e76\u91cd\u542f hdfs \u4e4b\u540e\uff0c\u95ee\u9898\u89e3\u51b3\u3002<\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/02\/image-1581475670802.png\" alt=\"file\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981\u63cf\u8ff0 \u6267\u884cSQL\u8dd1\u6279\u65f6\uff0c\u4f1a\u5076\u53d1\u7684\u62a5\u9519\uff1a org.apache.hadoop.hdfs.BlockMissi ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/kbwp.transwarp.cn\/?p=2276\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2276","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/2276","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\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2276"}],"version-history":[{"count":2,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/2276\/revisions"}],"predecessor-version":[{"id":17975,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/2276\/revisions\/17975"}],"wp:attachment":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}