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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-1248) Metadata cache should handle tablets with multiple locations
Date Sat, 06 Apr 2013 00:09:16 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-1248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13624217#comment-13624217
] 

Hudson commented on ACCUMULO-1248:
----------------------------------

Integrated in Accumulo-1.5 #67 (See [https://builds.apache.org/job/Accumulo-1.5/67/])
    ACCUMULO-1248 made tablet location cache throw an exception if a tablet has multiple locations
(Revision 1465155)

     Result = ABORTED
kturner : 
Files : 
* /accumulo/branches/1.5/core/src/main/java/org/apache/accumulo/core/client/impl/MetadataLocationObtainer.java
* /accumulo/branches/1.5/core/src/main/java/org/apache/accumulo/core/client/impl/ThriftScanner.java
* /accumulo/branches/1.5/core/src/main/java/org/apache/accumulo/core/util/MetadataTable.java
* /accumulo/branches/1.5/core/src/test/java/org/apache/accumulo/core/client/impl/TabletLocatorImplTest.java
* /accumulo/branches/1.5/server/src/main/java/org/apache/accumulo/server/util/MetadataTable.java

                
> Metadata cache should handle tablets with multiple locations
> ------------------------------------------------------------
>
>                 Key: ACCUMULO-1248
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1248
>             Project: Accumulo
>          Issue Type: Sub-task
>    Affects Versions: 1.4.0
>            Reporter: Keith Turner
>             Fix For: 1.5.0
>
>
> When a tablet has multiple locations, the client side code that caches tablet location
from the metadata table will currently just take one of the locations. 
> If a tablet has multiple locations, then the client code should fail. Proceeding when
a tablet has multiple location clould result in silent data loss or reading stale and/or incomplete
data.

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