[jira] [Created] (YARN-3930) FileSystemNodeLabelsStore should make sure edit log file closed when exception is thrown

["Dian Fu (JIRA)" <ji...@apache.org>]

Dian Fu created YARN-3930:
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             Summary: FileSystemNodeLabelsStore should make sure edit log file closed when exception is thrown 
                 Key: YARN-3930
                 URL: https://issues.apache.org/jira/browse/YARN-3930
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Dian Fu
            Assignee: Dian Fu


When I test the node label feature in my local environment, I encountered the following exception:
{code}
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.recoverLeaseInternal(FSNamesystem.java:2426)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFileInternal(FSNamesystem.java:2222)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFileInt(FSNamesystem.java:2523)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFile(FSNamesystem.java:2498)
        at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.append(NameNodeRpcServer.java:662)
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.append(ClientNamenodeProtocolServerSideTranslatorPB.java:418)
        at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:636)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:976)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2174)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2170)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1666)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2168)

        at org.apache.hadoop.yarn.nodelabels.CommonNodeLabelsManager.handleStoreEvent(CommonNodeLabelsManager.java:196)
        at org.apache.hadoop.yarn.nodelabels.CommonNodeLabelsManager$ForwardingEventHandler.handle(CommonNodeLabelsManager.java:168)
        at org.apache.hadoop.yarn.nodelabels.CommonNodeLabelsManager$ForwardingEventHandler.handle(CommonNodeLabelsManager.java:163)
        at org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:176)
        at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:108)
        at java.lang.Thread.run(Thread.java:745)
{code}
The reason is that HDFS throws an exception when calling {{ensureAppendEditlogFile}} because of some reason which causes the edit log output stream isn't closed. This caused that the next time we call {{ensureAppendEditlogFile}}, lease recovery will failed because we are just the lease holder.



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