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https://issues.apache.org/jira/browse/HIVE-20969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16699412#comment-16699412
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Sahil Takiar commented on HIVE-20969:
-------------------------------------
+1 LGTM pending tests.
> HoS sessionId generation can cause race conditions when uploading files to
> HDFS
> -------------------------------------------------------------------------------
>
> Key: HIVE-20969
> URL: https://issues.apache.org/jira/browse/HIVE-20969
> Project: Hive
> Issue Type: Bug
> Components: Spark
> Affects Versions: 4.0.0
> Reporter: Peter Vary
> Assignee: Peter Vary
> Priority: Major
> Attachments: HIVE-20969.2.patch, HIVE-20969.patch
>
>
> The observed exception is:
> {code}
> Caused by: java.io.FileNotFoundException: File does not exist:
> /tmp/hive/_spark_session_dir/0/hive-exec-2.1.1-SNAPSHOT.jar (inode 21140)
> [Lease. Holder: DFSClient_NONMAPREDUCE_304217459_39, pending creates: 1]
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkLease(FSNamesystem.java:2781)
> at
> org.apache.hadoop.hdfs.server.namenode.FSDirWriteFileOp.analyzeFileState(FSDirWriteFileOp.java:599)
> at
> org.apache.hadoop.hdfs.server.namenode.FSDirWriteFileOp.validateAddBlock(FSDirWriteFileOp.java:171)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:2660)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:872)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:550)
> at
> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:523)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:991)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:869)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:815)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2675)
> {code}
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