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From "Adam Fuchs (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-2219) parallelize the operation of certain FATE operations
Date Fri, 17 Jan 2014 19:40:19 GMT
Adam Fuchs created ACCUMULO-2219:
------------------------------------

             Summary: parallelize the operation of certain FATE operations
                 Key: ACCUMULO-2219
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2219
             Project: Accumulo
          Issue Type: Improvement
          Components: fate
    Affects Versions: 1.5.0, 1.4.4
            Reporter: Adam Fuchs


As in ACCUMULO-2217, a user operation can cause the FATE processor to get stuck and require
administrative action to make progress on any future FATE operations. We should look at ways
to parallelize the execution of FATE tasks that commute and don't interfere with each other.
Maybe there are some rules we can use to run certain well-known operations in parallel (like
a merge on one table at the same time as a deletion of another table, for example).

This has a strong impact on multi-tenancy, preventing one user's operations from hosing all
the other users.



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