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https://issues.apache.org/jira/browse/HBASE-19295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16289435#comment-16289435
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Peter Somogyi commented on HBASE-19295:
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[~stack], [~vasas] and I investigted a sqoop failure and found that when
{{Configuration.addDefaultResource(String)}} is called then
ReadOnlyConfiguration throws UnsupportedOperationException even when you load
not hbase-specific config. Probably we need some modification here.
https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java#L850-L859
> The Configuration returned by CPEnv should be read-only.
> --------------------------------------------------------
>
> Key: HBASE-19295
> URL: https://issues.apache.org/jira/browse/HBASE-19295
> Project: HBase
> Issue Type: Sub-task
> Components: Coprocessors
> Reporter: stack
> Assignee: stack
> Labels: incompatible
> Fix For: 2.0.0-beta-1
>
> Attachments: HBASE-19295.master.001.patch,
> HBASE-19295.master.002.patch, HBASE-19295.master.003.patch,
> HBASE-19295.master.004.patch, HBASE-19295.master.005.patch
>
>
> The Configuration a CP gets when it does a getConfiguration on the
> environment is that of the RegionServer. The CP should not be able to modify
> this config. We should throw exception if they try to write us.
> Ditto w/ the Connection they can get from the env. They should not be able to
> close it at min.
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