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https://issues.apache.org/jira/browse/HIVE-860?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13904316#comment-13904316
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Hive QA commented on HIVE-860:
------------------------------
{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/12629469/HIVE-860.patch
{color:red}ERROR:{color} -1 due to 1 failed/errored test(s), 5128 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestNegativeMinimrCliDriver.testNegativeCliDriver_mapreduce_stack_trace_hadoop20
{noformat}
Test results:
http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/1384/testReport
Console output:
http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/1384/console
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: 1 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12629469
> Persistent distributed cache
> ----------------------------
>
> Key: HIVE-860
> URL: https://issues.apache.org/jira/browse/HIVE-860
> Project: Hive
> Issue Type: Improvement
> Affects Versions: 0.12.0
> Reporter: Zheng Shao
> Assignee: Brock Noland
> Fix For: 0.13.0
>
> Attachments: HIVE-860.patch, HIVE-860.patch, HIVE-860.patch,
> HIVE-860.patch
>
>
> DistributedCache is shared across multiple jobs, if the hdfs file name is the
> same.
> We need to make sure Hive put the same file into the same location every time
> and do not overwrite if the file content is the same.
> We can achieve 2 different results:
> A1. Files added with the same name, timestamp, and md5 in the same session
> will have a single copy in distributed cache.
> A2. Filed added with the same name, timestamp, and md5 will have a single
> copy in distributed cache.
> A2 has a bigger benefit in sharing but may raise a question on when Hive
> should clean it up in hdfs.
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