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From "Neil Jonkers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11376) CombineHiveInputFormat is falling back to HiveInputFormat in case codecs are found for one of the input files
Date Sat, 08 Jul 2017 07:28:01 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16079018#comment-16079018
] 

Neil Jonkers commented on HIVE-11376:
-------------------------------------

Seems : hive.hadoop.supports.splittable.combineinputformat has not been marked as removed
in configuration properties: [Configuration Properties – hive.hadoop.supports.splittable.combineinputformat|https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.hadoop.supports.splittable.combineinputformat]

> CombineHiveInputFormat is falling back to HiveInputFormat in case codecs are found for
one of the input files
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-11376
>                 URL: https://issues.apache.org/jira/browse/HIVE-11376
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Rajat Khandelwal
>            Assignee: Rajat Khandelwal
>              Labels: TODOC2.0
>             Fix For: 2.0.0
>
>         Attachments: HIVE-11376.02.patch
>
>
> https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/io/CombineHiveInputFormat.java#L379
> This is the exact code snippet:
> {noformat}
> / Since there is no easy way of knowing whether MAPREDUCE-1597 is present in the tree
or not,
>       // we use a configuration variable for the same
>       if (this.mrwork != null && !this.mrwork.getHadoopSupportsSplittable())
{
>         // The following code should be removed, once
>         // https://issues.apache.org/jira/browse/MAPREDUCE-1597 is fixed.
>         // Hadoop does not handle non-splittable files correctly for CombineFileInputFormat,
>         // so don't use CombineFileInputFormat for non-splittable files
>         //ie, dont't combine if inputformat is a TextInputFormat and has compression
turned on
> {noformat}



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