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From "Eric Newton (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-3407) scan page in monitor is causing the monitor to crash w/OOM
Date Fri, 12 Dec 2014 18:51:14 GMT
Eric Newton created ACCUMULO-3407:
-------------------------------------

             Summary: scan page in monitor is causing the monitor to crash w/OOM
                 Key: ACCUMULO-3407
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3407
             Project: Accumulo
          Issue Type: Bug
          Components: monitor
    Affects Versions: 1.6.1
         Environment: very large production cluster
            Reporter: Eric Newton
            Assignee: Eric Newton
             Fix For: 1.6.2, 1.7.0


The monitor is now collecting information about scans. This will include any scan-time arguments
passed to the scan, but this information is not displayed.  It continues to use up memory,
and when there are several thousand scans, and each has a megabyte of arguments, it can cause
a reasonably sized monitor to OOM.  Should also double-check that the monitor is cleaning
up references with each refresh.

It was unexpected that users would pass a megabyte of options to their queries.



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