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Posted to yarn-issues@hadoop.apache.org by "Prabhu Joseph (JIRA)" <ji...@apache.org> on 2019/01/20 17:52:00 UTC
[jira] [Updated] (YARN-6929) yarn.nodemanager.remote-app-log-dir
structure is not scalable
[ https://issues.apache.org/jira/browse/YARN-6929?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Prabhu Joseph updated YARN-6929:
--------------------------------
Attachment: YARN-6929.4.patch
> yarn.nodemanager.remote-app-log-dir structure is not scalable
> -------------------------------------------------------------
>
> Key: YARN-6929
> URL: https://issues.apache.org/jira/browse/YARN-6929
> Project: Hadoop YARN
> Issue Type: Bug
> Components: log-aggregation
> Affects Versions: 2.7.3
> Reporter: Prabhu Joseph
> Assignee: Prabhu Joseph
> Priority: Major
> Attachments: YARN-6929.1.patch, YARN-6929.2.patch, YARN-6929.2.patch, YARN-6929.3.patch, YARN-6929.4.patch, YARN-6929.patch
>
>
> The current directory structure for yarn.nodemanager.remote-app-log-dir is not scalable. Maximum Subdirectory limit by default is 1048576 (HDFS-6102). With retention yarn.log-aggregation.retain-seconds of 7days, there are more chances LogAggregationService fails to create a new directory with FSLimitException$MaxDirectoryItemsExceededException.
> The current structure is <yarn.nodemanager.remote-app-log-dir>/<user>/logs/<job_name>. This can be improved with adding date as a subdirectory like
> <yarn.nodemanager.remote-app-log-dir>/<user>/logs/<date>/<job_name>
> {code}
> WARN org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.LogAggregationService: Application failed to init aggregation
> org.apache.hadoop.yarn.exceptions.YarnRuntimeException: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.protocol.FSLimitException$MaxDirectoryItemsExceededException): The directory item limit of /app-logs/yarn/logs is exceeded: limit=1048576 items=1048576
> at org.apache.hadoop.hdfs.server.namenode.FSDirectory.verifyMaxDirItems(FSDirectory.java:2021)
> at org.apache.hadoop.hdfs.server.namenode.FSDirectory.addChild(FSDirectory.java:2072)
> at org.apache.hadoop.hdfs.server.namenode.FSDirectory.unprotectedMkdir(FSDirectory.java:1841)
> at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirsRecursively(FSNamesystem.java:4351)
> at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirsInternal(FSNamesystem.java:4262)
> at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirsInt(FSNamesystem.java:4221)
> at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirs(FSNamesystem.java:4194)
> at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.mkdirs(NameNodeRpcServer.java:813)
> at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.mkdirs(ClientNamenodeProtocolServerSideTranslatorPB.java:600)
> at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
> at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:619)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:962)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2039)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2035)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2033)
> at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.LogAggregationService.createAppDir(LogAggregationService.java:308)
> at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.LogAggregationService.initAppAggregator(LogAggregationService.java:366)
> at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.LogAggregationService.initApp(LogAggregationService.java:320)
> at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.LogAggregationService.handle(LogAggregationService.java:443)
> at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.LogAggregationService.handle(LogAggregationService.java:67)
> at org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
> at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.protocol.FSLimitException$MaxDirectoryItemsExceededException): The directory item limit of /app-logs/yarn/logs is exceeded: limit=1048576 items=1048576
> at org.apache.hadoop.hdfs.server.namenode.FSDirectory.verifyMaxDirItems(FSDirectory.java:2021)
> at org.apache.hadoop.hdfs.server.namenode.FSDirectory.addChild(FSDirectory.java:2072)
> at org.apache.hadoop.hdfs.server.namenode.FSDirectory.unprotectedMkdir(FSDirectory.java:1841)
> at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirsRecursively(FSNamesystem.java:4351)
> at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirsInternal(FSNamesystem.java:4262)
> {code}
> Thanks to Robert Mancuso for finding this issue.
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