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From "Harish Butani (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-5836) Improve logging in ExecReducer.reduce()
Date Thu, 27 Mar 2014 02:13:20 GMT

     [ https://issues.apache.org/jira/browse/HIVE-5836?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Harish Butani updated HIVE-5836:
--------------------------------

    Fix Version/s:     (was: 0.13.0)

> Improve logging in ExecReducer.reduce()
> ---------------------------------------
>
>                 Key: HIVE-5836
>                 URL: https://issues.apache.org/jira/browse/HIVE-5836
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Hari Sankar Sivarama Subramaniyan
>            Assignee: Hari Sankar Sivarama Subramaniyan
>
> Although ExecReducer.reduce() logs the used JVM heap memory, we need to log the committed,
max and used memory (http://docs.oracle.com/javase/6/docs/api/java/lang/management/MemoryUsage.html)
to debug any future outofmemory issues.
>             l4j.info("ExecReducer: processing " + cntr
>                 + " rows: used memory = " + used_memory);
> i.e. the above log info should include max_memory as well as committed_memory for a propery
analysis of memory usage at runtime.



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