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https://issues.apache.org/jira/browse/HIVE-13278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15746850#comment-15746850
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Xuefu Zhang commented on HIVE-13278:
------------------------------------
[~stakiar], let us know if you like to work on this. Otherwise, we will move
this forward.
[~csun], thanks for working on this. I have two questions:
1. I saw ConditionalTask.hasReduce() is removed, which would change the
semantics, right? I'm not sure if this breaks anything.
2. For SparkTask, I assume it's possible to have two MapTasks: one ends at FS,
while the other connects to a reduce task. Would the first MapTask is still
going to hit hdfs for reduce.xml?
[~lirui], please also take a look the approach. Thanks.
> Many redundant 'File not found' messages appeared in container log during
> query execution with Hive on Spark
> ------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-13278
> URL: https://issues.apache.org/jira/browse/HIVE-13278
> Project: Hive
> Issue Type: Bug
> Environment: Hive on Spark engine
> Found based on :
> Apache Hive 2.0.0
> Apache Spark 1.6.0
> Reporter: Xin Hao
> Assignee: Sahil Takiar
> Priority: Minor
> Attachments: HIVE-13278.1.patch
>
>
> Many redundant 'File not found' messages appeared in container log during
> query execution with Hive on Spark.
> Certainly, it doesn't prevent the query from running successfully. So mark it
> as Minor currently.
> Error message example:
> {noformat}
> 16/03/14 01:45:06 INFO exec.Utilities: File not found: File does not exist:
> /tmp/hive/hadoop/2d378538-f5d3-493c-9276-c62dd6634fb4/hive_2016-03-14_01-44-16_835_623058724409492515-6/-mr-10010/0a6d0cae-1eb3-448c-883b-590b3b198a73/reduce.xml
> at
> org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:66)
> at
> org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:56)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsUpdateTimes(FSNamesystem.java:1932)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInt(FSNamesystem.java:1873)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1853)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1825)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(NameNodeRpcServer.java:565)
> at
> org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.getBlockLocations(AuthorizationProviderProxyClientProtocol.java:87)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(ClientNamenodeProtocolServerSideTranslatorPB.java:363)
> at
> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1060)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2086)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2082)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1671)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2080)
> {noformat}
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