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https://issues.apache.org/jira/browse/HBASE-8156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13612965#comment-13612965
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Himanshu Vashishtha commented on HBASE-8156:
--------------------------------------------
And
coprocessor.TestMasterObserver.testRegionTransitionOperations(TestMasterObserver.java
passes me at local. I am wondering if something is wrong this patch, or is
it some environmental issue which is causing this. Going by the patch and
pattern of the failures, I don't see any relation b/w them. Please let me
know if you think different.
> Support for Namenode HA for non-idempotent operations
> -----------------------------------------------------
>
> Key: HBASE-8156
> URL: https://issues.apache.org/jira/browse/HBASE-8156
> Project: HBase
> Issue Type: Sub-task
> Components: Filesystem Integration
> Affects Versions: 0.95.0
> Reporter: Himanshu Vashishtha
> Assignee: Himanshu Vashishtha
> Fix For: 0.98.0
>
> Attachments: HBase-8156-trunk-v1.patch, HBase-8156-trunk-v2.patch,
> HBase-8156-trunk-v3.patch, HBase-8156-trunk-v4.patch,
> HBase-8156-trunk-v4.patch
>
>
> In hadoop 2 HA, non-idempotent operations are not retried at the hdfs side.
> This is by design as retrying a non-idempotent operation might not be a good
> design choice for some use case.
> HBase needs to handle the retries for such operations at its end.
> With HBase-7806, there is already some work going on for file system
> abstractions. There, HReginFileSystem sits as an abstraction between region
> and FS. This jira is a move in the same direction, where it adds retry
> functionality for non-idempotent calls such as create, rename and delete in
> HRegionFileSystem class.
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