{"id":7193,"date":"2021-11-29T14:04:05","date_gmt":"2021-11-29T06:04:05","guid":{"rendered":"https:\/\/nj.transwarp.cn:8180\/?p=7193"},"modified":"2021-12-22T14:08:24","modified_gmt":"2021-12-22T06:08:24","slug":"truncate%e8%a1%a8%e5%a4%b1%e8%b4%a5%e6%97%a5%e5%bf%97%e6%8a%a5%e9%94%99cannot-be-deleted-since-path-is-snapshottable-and-already-has-snapshot%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/kbwp.transwarp.cn\/?p=7193","title":{"rendered":"truncate\u8868\u5931\u8d25\u65e5\u5fd7\u62a5\u9519cannot be deleted since [path] is snapshottable and already has snapshot\u89e3\u51b3\u65b9\u6848"},"content":{"rendered":"<h3>\u6982\u8981\u63cf\u8ff0<\/h3>\n<hr \/>\n<p>\u672c\u6587\u63cf\u8ff0\u5728<code>truncate table<\/code>\u5931\u8d25\u65e5\u5fd7\u62a5\u9519<code>cannot be deleted since [path] is snapshottable and already has snapshot<\/code>\u7684\u89e3\u51b3\u65b9\u6848<\/p>\n<h3>\u8be6\u7ec6\u63cf\u8ff0<\/h3>\n<hr \/>\n<h4>\u95ee\u9898\u63cf\u8ff0<\/h4>\n<p>\u5982\u679c\u5ba2\u6237\u4f7f\u7528TBAK\u5de5\u5177\u540c\u6b65orc\u4e8b\u52a1\u8868\u7684\u65f6\u5019\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u4efb\u52a1\u5931\u8d25\uff0csnapshot\u6b8b\u7559\u7684\u60c5\u51b5\u3002snapshot\u6b8b\u7559\u4f1a\u5bfc\u81f4truncate\u8868\u5931\u8d25\uff0c\u8bed\u53e5\u6267\u884c\u5f53\u524d\u62a5\u9519\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-shell\">SQL \u9519\u8bef [40000] [08S01]: EXECUTION FAILED: Task DDL error HiveException: [Error 40000] Exception while processing\n  java.sql.SQLException: EXECUTION FAILED: Task DDL error HiveException: [Error 40000] Exception while processing\n  EXECUTION FAILED: Task DDL error HiveException: [Error 40000] Exception while processing\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/11\/image-1638164374015.png\" alt=\"file\" \/><\/p>\n<p>\u5982\u679cdrop \u8868\u518d\u91cd\u65b0create\uff0c\u4e0d\u4f1a\u62a5\u9519\uff0c\u4f46\u662f\u6570\u636e\u4ecd\u7136\u662f\u6ca1\u6709\u88ab\u6e05\u7a7a\u7684\uff0c\u5176hdfs\u4e0a\u6570\u636e\u76ee\u5f55\u8fd8\u5728\u3002<\/p>\n<p>inceptor server\u89d2\u8272\u670d\u52a1\u5668\u4e0a\u7684<code>\/var\/log\/inceptorX\/hive-server2.log<\/code> \u65e5\u5fd7\u62a5\u9519\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-shell\">2021-11-29 13:39:20,504 ERROR exec.DDLTask: (DDLTask.java:execute(629)) [HiveServer2-Handler-Pool: Thread-84248(SessionHandle=389b6104-4d92-4372-b925-c7efb7f66cc9)] - org.apache.hadoop.hive.ql.metadata.HiveException: Exception while processing\n        at org.apache.hadoop.hive.ql.exec.DDLTask.truncateTable(DDLTask.java:5889)\n        at org.apache.hadoop.hive.ql.exec.DDLTask.execute(DDLTask.java:524)\n        at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:164)\n        at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:89)\n        at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:2716)\n        at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:2433)\n        at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1764)\n        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1599)\n        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1566)\n        at io.transwarp.inceptor.server.InceptorSQLOperation.runInternal(InceptorSQLOperation.scala:66)\n        at org.apache.hive.service.cli.operation.Operation.run(Operation.java:295)\n        at org.apache.hive.service.cli.session.HiveSessionImpl.executeStatementInternal(HiveSessionImpl.java:433)\n        at org.apache.hive.service.cli.session.HiveSessionImpl.executeStatementWithParamsAndPropertiesAsync(HiveSessionImpl.java:400)\n        at org.apache.hive.service.cli.CLIService.executeStatementWithParamsAndPropertiesAsync(CLIService.java:328)\n        at io.transwarp.inceptor.server.InceptorCLIService.executeStatementWithParamsAndPropertiesAsync(InceptorCLIService.scala:149)\n        at org.apache.hive.service.cli.thrift.ThriftCLIService.ExecuteStatement(ThriftCLIService.java:542)\n        at org.apache.hive.service.cli.thrift.TCLIService$Processor$ExecuteStatement.getResult(TCLIService.java:1857)\n        at org.apache.hive.service.cli.thrift.TCLIService$Processor$ExecuteStatement.getResult(TCLIService.java:1842)\n        at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)\n        at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)\n        at org.apache.hive.service.auth.TSetIpAddressProcessor.process(TSetIpAddressProcessor.java:56)\n        at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:285)\n        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)\n        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)\n        at java.lang.Thread.run(Thread.java:745)\nCaused by: java.io.IOException: Failed to move to trash: hdfs:\/\/nameservice1\/inceptor1\/user\/hive\/warehouse\/default.db\/hive\/emp\n        at org.apache.hadoop.fs.TrashPolicyDefault.moveToTrash(TrashPolicyDefault.java:164)\n        at org.apache.hadoop.fs.Trash.moveToTrash(Trash.java:114)\n        at org.apache.hadoop.fs.Trash.moveToAppropriateTrash(Trash.java:95)\n        at org.apache.hadoop.hive.shims.Hadoop23Shims.moveToAppropriateTrash(Hadoop23Shims.java:255)\n        at org.apache.hadoop.hive.ql.exec.DDLTask.truncateTable(DDLTask.java:5875)\n        ... 24 more\nCaused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.protocol.SnapshotException): The directory \/inceptor1\/user\/hive\/warehouse\/default.db\/hive\/emp cannot be deleted since \/inceptor1\/user\/hive\/warehouse\/default.db\/hive\/emp is snapshottable and already has snapshots\n        at org.apache.hadoop.hdfs.server.namenode.FSDirSnapshotOp.checkSnapshot(FSDirSnapshotOp.java:224)\n        at org.apache.hadoop.hdfs.server.namenode.FSDirRenameOp.validateRenameSource(FSDirRenameOp.java:572)\n        at org.apache.hadoop.hdfs.server.namenode.FSDirRenameOp.unprotectedRenameTo(FSDirRenameOp.java:361)\n        at org.apache.hadoop.hdfs.server.namenode.FSDirRenameOp.renameTo(FSDirRenameOp.java:299)\n        at org.apache.hadoop.hdfs.server.namenode.FSDirRenameOp.renameToInt(FSDirRenameOp.java:244)\n        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.renameTo(FSNamesystem.java:3729)\n        at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.rename2(NameNodeRpcServer.java:911)\n        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.rename2(ClientNamenodeProtocolServerSideTranslatorPB.java:599)\n        at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)\n        at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)\n        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:969)\n        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2217)\n        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2213)\n        at java.security.AccessController.doPrivileged(Native Method)\n        at javax.security.auth.Subject.doAs(Subject.java:415)\n        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1996)\n        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2211)\n<\/code><\/pre>\n<h4>\u89e3\u51b3\u65b9\u6848<\/h4>\n<h5>1. TBAK\u70b9\u51fb\u6e05\u7406\u4e2d\u95f4\u6570\u636e<\/h5>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/11\/image-1638164829143.png\" alt=\"file\" \/><\/p>\n<h5>2. hdfs\u4e0a\u6e05\u7406snapshot<\/h5>\n<p>\u67e5\u770bhdfs\u4e0a\u6709\u591a\u5c11\u76ee\u5f55\u53ef\u4ee5\u88absnapshottable\uff08\u90e8\u5206\u8001\u7248\u672c\u65e0\u6cd5\u4f7f\u7528\u8be5\u547d\u4ee4\uff09\u53ef\u4ee5\u7528\u8fd9\u4e2a\u547d\u4ee4\u786e\u8ba4\u4e00\u4e0b\u62a5\u9519\u8def\u5f84<code>\/inceptor1\/user\/hive\/warehouse\/default.db\/hive\/emp<\/code> \u662f\u5426\u5728\u5185<\/p>\n<pre><code class=\"language-shell\">$ hdfs lsSnapshottableDir<\/code><\/pre>\n<p>\u6839\u636e\u62a5\u9519\/inceptor1\/user\/hive\/warehouse\/default.db\/hive\/emp \u8def\u5f84\uff0c\u5728hdfs\u4e0a\u67e5\u770bsnapshot\u60c5\u51b5<\/p>\n<pre><code class=\"language-shell\">$ hdfs dfs -ls \/inceptor1\/user\/hive\/warehouse\/default.db\/hive\/emp\/.snapshot<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/nj.transwarp.cn:8180\/wp-content\/uploads\/2021\/11\/image-1638165487236.png\" alt=\"file\" \/><\/p>\n<p>\u901a\u8fc7\u8fd9\u4e2a\u8f93\u51fa\u6211\u4eec\u9700\u8981\u77e5\u9053snapshot\u7684\u521b\u5efa\u9700\u8981\u4e24\u4e2a\u53c2\u6570\uff0c\u4e00\u4e2a\u662f\u8def\u5f84<code>\/inceptor1\/user\/hive\/warehouse\/default.db\/hive\/emp<\/code>,\u4e00\u4e2a\u662fsnapshot\u7684\u540d\u5b57\u5c31\u662fdefault-emp-20211129092141<\/p>\n<p>\u5220\u9664snapshot<\/p>\n<pre><code class=\"language-shell\">$ hdfs dfs -deleteSnapshot [snapshot\u7684\u8def\u5f84] [snapshot\u7684\u540d\u5b57]<\/code><\/pre>\n<p>\u5bf9\u4e8eemp\u8fd9\u4e2a\u8868\uff0c\u5e94\u8be5\u662f<\/p>\n<pre><code class=\"language-shell\">$ hdfs dfs -deleteSnapshot \/inceptor1\/user\/hive\/warehouse\/default.db\/hive\/emp default-emp-20211129092141<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/nj.transwarp.cn:8180\/wp-content\/uploads\/2021\/11\/image-1638165700295.png\" alt=\"file\" \/><\/p>\n<p>\u7136\u540e\u518d\u53bbtruncate \u8868\u6210\u529f<br \/>\n<img decoding=\"async\" src=\"https:\/\/nj.transwarp.cn:8180\/wp-content\/uploads\/2021\/11\/image-1638165728641.png\" alt=\"file\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981\u63cf\u8ff0 \u672c\u6587\u63cf\u8ff0\u5728truncate table\u5931\u8d25\u65e5\u5fd7\u62a5\u9519cannot be deleted since [ ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/kbwp.transwarp.cn\/?p=7193\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38],"tags":[],"class_list":["post-7193","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\/7193","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\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7193"}],"version-history":[{"count":1,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/7193\/revisions"}],"predecessor-version":[{"id":7452,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/7193\/revisions\/7452"}],"wp:attachment":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}