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From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-677) better debugging
Date Thu, 23 Jul 2009 06:49:14 GMT

    [ https://issues.apache.org/jira/browse/HIVE-677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12734487#action_12734487

Zheng Shao commented on HIVE-677:

The message should be "forwarding n-th row"? This is in the forward function, not the process
For operators like filtering, the numbers can be different.

> better debugging
> ----------------
>                 Key: HIVE-677
>                 URL: https://issues.apache.org/jira/browse/HIVE-677
>             Project: Hadoop Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Namit Jain
>         Attachments: hive.677.1.patch
> Currently, we have no idea how many rows are being produced by join/file sink while the
process is running.
> It makes the tasks very difficult to debug - it would be very useful to dump some stats
while the process (mapper/reducer) is running

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