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From "Hudson (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-466) add a default constraint to limit the size of keys
Date Tue, 07 May 2013 02:43:19 GMT


Hudson commented on ACCUMULO-466:

Integrated in Accumulo-Trunk #851 (See [])
    ACCUMULO-466 commit Corey Nolet's patch to add a default constraint limit the size of
keys (Revision 1478404)

     Result = SUCCESS
ecn : 
Files : 
* /accumulo/trunk/core/src/main/java/org/apache/accumulo/core/constraints/
* /accumulo/trunk/core/src/main/java/org/apache/accumulo/core/iterators/
* /accumulo/trunk/core/src/test/java/org/apache/accumulo/core/constraints
* /accumulo/trunk/core/src/test/java/org/apache/accumulo/core/constraints/
* /accumulo/trunk/proxy/src/test/java/org/apache/accumulo/proxy/
* /accumulo/trunk/test/src/test/java/org/apache/accumulo/test/
* /accumulo/trunk/test/src/test/java/org/apache/accumulo/test/

> add a default constraint to limit the size of keys
> --------------------------------------------------
>                 Key: ACCUMULO-466
>                 URL:
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: master
>            Reporter: Eric Newton
>            Assignee: Corey J. Nolet
>             Fix For: 1.6.0
>         Attachments: ACCUMULO-466.1.patch
> If a user mistakenly inserts extremely large keys, the tablet server will eventually
run out of memory just loading indexes.  This is almost certainly a mistake.  Add a constraint,
by default, to new tables, which will limit the size of a key to a megabyte, for example,
to catch these kinds of errors earlier.  If the user intends to use very large keys, they
can always remove the constraint.

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