[jira] [Updated] (HIVE-11376) CombineHiveInputFormat is falling back to HiveInputFormat in case codecs are found for one of the input files

["Rajat Khandelwal (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-11376?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rajat Khandelwal updated HIVE-11376:
------------------------------------
    Attachment: HIVE-11376.02.patch

> 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
>         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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