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From "Eric Newton (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-1257) strange updates to metadata table
Date Wed, 10 Apr 2013 16:24:16 GMT
Eric Newton created ACCUMULO-1257:
-------------------------------------

             Summary: strange updates to metadata table
                 Key: ACCUMULO-1257
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1257
             Project: Accumulo
          Issue Type: Bug
          Components: tserver
            Reporter: Eric Newton
            Assignee: Keith Turner
            Priority: Trivial
             Fix For: 1.5.0


While testing, I took a very close look at the write-ahead log for one !METADATA tablet. 
I saw a series of strange updates:

{noformat}
MANY_MUTATIONS 1 3
1 mutations:
  m9<
      srv:time [system]:181690 [] M1365448749945
      srv:lock [system]:181690 [] tservers/10.0.0.1:9997/zlock-0000000012$33dea1f3e44032a

MANY_MUTATIONS 1 3
1 mutations:
  m9<
      srv:time [system]:181691 [] M1365448749945
      srv:lock [system]:181691 [] tservers/10.0.0.1:9997/zlock-0000000012$33dea1f3e44032a

MANY_MUTATIONS 1 3
1 mutations:
  m9<
      srv:time [system]:181692 [] M1365448749974
      srv:lock [system]:181692 [] tservers/10.0.0.1:9997/zlock-0000000012$33dea1f3e44032a

MANY_MUTATIONS 1 3
1 mutations:
  m9<
      srv:time [system]:181703 [] M1365448751735
      srv:lock [system]:181703 [] tservers/10.0.0.1:9997/zlock-0000000012$33dea1f3e44032a
{noformat}

It seems to me that these updates aren't necessary.

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