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From "Keith Turner (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-1352) filter on !METADATA can prematurely delete loaded flags
Date Fri, 26 Apr 2013 16:16:16 GMT
Keith Turner created ACCUMULO-1352:
--------------------------------------

             Summary: filter on !METADATA can prematurely delete loaded flags
                 Key: ACCUMULO-1352
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1352
             Project: Accumulo
          Issue Type: Sub-task
    Affects Versions: 1.4.0
            Reporter: Keith Turner
             Fix For: 1.5.0, 1.4.4


Comments and commits against the parent ticket (ACCUMULO-1044) address multiple causes.  This
substask summarizes one of those causes.

Accumulo configure a filter on the metadata table that drops inactive bulk load flags.  Inactive
flags could be propagated by splitting tablets, and thats why this filter exist.  There is
a bug in the way the fitler works.  It may delete active bulk load flags.  If this occurs
there is a small possibility that bulk loaded files could be moved.  This would result in
accumulo  complaining about missing files.

A work around for 1.4.0 - 1.4.3 is to remove this filter from the metdata table.

{noformat}
  deleteiter -majc -n bulkLoadFilter -t !METADATA
{noformat}

Then periodically delete bulk load flags that are left by splits. Would need to add the filter
back once this bug is fixed.

All svn commits related to this issue were done using the parent ticket.

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