You are viewing a plain text version of this content. The canonical link for it is here.
Posted to mapreduce-issues@hadoop.apache.org by "Thomas Graves (JIRA)" <ji...@apache.org> on 2013/02/01 16:44:15 UTC
[jira] [Updated] (MAPREDUCE-3952) In MR2, when Total input paths to
process == 1, CombinefileInputFormat.getSplits() returns 0 split.
[ https://issues.apache.org/jira/browse/MAPREDUCE-3952?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Thomas Graves updated MAPREDUCE-3952:
-------------------------------------
Fix Version/s: 0.23.7
> 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
> Affects Versions: 0.24.0, 0.23.3
> Reporter: Zhenxiao Luo
> Assignee: Bhallamudi Venkata Siva Kamesh
> Fix For: 2.0.0-alpha, 0.23.7
>
> 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
For more information on JIRA, see: http://www.atlassian.com/software/jira