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https://issues.apache.org/jira/browse/HBASE-12575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14238972#comment-14238972
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Hudson commented on HBASE-12575:
--------------------------------

FAILURE: Integrated in HBase-0.98 #727 (See 
[https://builds.apache.org/job/HBase-0.98/727/])
HBASE-12575 Sanity check table coprocessor classes are loadable (apurtell: rev 
8569f97449add5bb8f86aa3e4e61a5bd1f620a54)
* hbase-shell/src/test/ruby/hbase/admin_test.rb
* hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
* 
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java


> Sanity check table coprocessor classes are loadable
> ---------------------------------------------------
>
>                 Key: HBASE-12575
>                 URL: https://issues.apache.org/jira/browse/HBASE-12575
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Enis Soztutar
>            Assignee: Andrew Purtell
>             Fix For: 1.0.0, 2.0.0, 0.98.9
>
>         Attachments: HBASE-12575-0.98.patch, HBASE-12575-branch-1.patch, 
> HBASE-12575.patch, HBASE-12575.patch, HBASE-12575.patch, HBASE-12575.patch, 
> HBASE-12575.patch
>
>
> We load coprocessors and other classes from configuration. In case of a typo 
> in the class name (or deployment problem) a create table / alter table with 
> wrong class name brings down the whole cluster. 
> Master already does sanity check for compression and region split policy 
> classes introduced in HBASE-10591. We should extend that to check some other 
> common cases as well. 



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