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https://issues.apache.org/jira/browse/HIVE-11945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14909907#comment-14909907
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Hive QA commented on HIVE-11945:
--------------------------------
{color:red}Overall{color}: -1 at least one tests failed
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12762321/HIVE-11945.3.patch
{color:red}ERROR:{color} -1 due to 4 failed/errored test(s), 9616 tests executed
*Failed tests:*
{noformat}
TestSchedulerQueue - did not produce a TEST-*.xml file
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_vector_groupby_reduce
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_vector_groupby_reduce
org.apache.hive.hcatalog.api.TestHCatClient.testTableSchemaPropagation
{noformat}
Test results:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/5440/testReport
Console output:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/5440/console
Test logs:
http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-5440/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 4 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12762321 - PreCommit-HIVE-TRUNK-Build
> ORC with non-local reads may not be reusing connection to DN
> ------------------------------------------------------------
>
> Key: HIVE-11945
> URL: https://issues.apache.org/jira/browse/HIVE-11945
> Project: Hive
> Issue Type: Bug
> Affects Versions: 1.3.0, 2.0.0
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Attachments: HIVE-11945.1.patch, HIVE-11945.2.patch,
> HIVE-11945.3.patch
>
>
> When “seek + readFully(buffer, offset, length)” is used, DFSInputStream ends
> up going via “readWithStrategy()”. This sets up BlockReader with length
> equivalent to that of the block size. So until this position is reached,
> RemoteBlockReader2.peer would not be added to the PeerCache (Plz refer
> RemoteBlockReader2.close() in HDFS). So eventually the next call to the same
> DN would end opening a new socket. In ORC, when it is not a data local read,
> this has a the possibility of opening/closing lots of connections with DN.
> In random reads, it would be good to set this length to the amount of data
> that is to be read (e.g pread call in DFSInputStream which sets up the
> BlockReader’s length correctly & the code path returns the Peer back to peer
> cache properly). “readFully(position, buffer, offset, length)” follows this
> code path and ends up reusing the connections properly. Creating this JIRA to
> fix this issue.
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