[
https://issues.apache.org/jira/browse/MAPREDUCE-3952?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Bhallamudi Venkata Siva Kamesh updated MAPREDUCE-3952:
------------------------------------------------------
Attachment: MAPREDUCE-3952-1.patch
Thanks Ahmed for reviewing the patch. Attaching a patch with proper formatting.
> In MR2, when Total input paths to process == 1,
> CombinefileInputFormat.getSplits() returns 0 split.
> ---------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3952
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3952
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Reporter: Zhenxiao Luo
> Attachments: MAPREDUCE-3952-1.patch, MAPREDUCE-3952.patch
>
>
> Hive get unexpected result when using MR2(When using MR1, always get expected
> result).
> In MR2, when Total input paths to process == 1,
> CombinefileInputFormat.getSplits() returns 0 split.
> The calling code in Hive, in Hadoop23Shims.java:
> InputSplit[] splits = super.getSplits(job, numSplits);
> this get splits.length == 0.
> In MR1, everything goes fine, the calling code in Hive, in Hadoop20Shims.java:
> CombineFileSplit[] splits = (CombineFileSplit[]) super.getSplits(job,
> numSplits);
> this get splits.length == 1.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
