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From "Jonathan Park" <>
Subject Review Request 22658: ACCUMULO-2889: Batch metadata updates for new WALs
Date Mon, 16 Jun 2014 21:59:57 GMT

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Review request for accumulo.

Bugs: ACCUMULO-2889

Repository: accumulo


Added additional methods to the Writer class to handle batching. 

Potential risks are that we're now holding onto the locks for a bit longer than we used to.
All tablets present in a batch will have their logLock's locked until the batch is complete.


  core/src/main/java/org/apache/accumulo/core/client/impl/ d6762e7 
  server/base/src/main/java/org/apache/accumulo/server/util/ 374017d

  server/tserver/src/main/java/org/apache/accumulo/tserver/ 36b2289 
  server/tserver/src/main/java/org/apache/accumulo/tserver/ e2510d7 
  server/tserver/src/main/java/org/apache/accumulo/tserver/log/ d25ee75

  test/src/test/java/org/apache/accumulo/test/ PRE-CREATION 



Added a new IT.

We insert a few entries to tablets and ensure that the relevant entries appear in the WAL
and Metadata Table.
One test case that isn't included yet is verifying that root + metadata table entries are
entered correctly.


Jonathan Park

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