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https://issues.apache.org/jira/browse/HBASE-16566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15471437#comment-15471437
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Ted Yu commented on HBASE-16566:
--------------------------------
Looking at existing test in
TestCreateTableProcedure#testCreateTwiceWithSameNonce :
{code}
ProcedureTestingUtility.waitProcedure(procExec, procId1);
{code}
Backing up a small table would take non-trivial time.
I would skip adding test for this one.
> Add nonce support to TableBackupProcedure
> -----------------------------------------
>
> Key: HBASE-16566
> URL: https://issues.apache.org/jira/browse/HBASE-16566
> Project: HBase
> Issue Type: Improvement
> Reporter: Ted Yu
> Assignee: Ted Yu
> Labels: backup
> Attachments: 16566.v2.txt
>
>
> We should pass in nonce to avoid duplicate table backup RPC (the same RPC
> sent to server multiple times).
> The duplicate table backup RPC may happen due to master failover.
> If there is no nonce, same procedure may be executed more than once.
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