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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-16172) Unify the retry logic in ScannerCallableWithReplicas and RpcRetryingCallerWithReadReplicas
Date Thu, 07 Jul 2016 05:28:11 GMT

     [ https://issues.apache.org/jira/browse/HBASE-16172?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ted Yu updated HBASE-16172:
---------------------------
    Attachment:     (was: 16172.v3.txt)

> Unify the retry logic in ScannerCallableWithReplicas and RpcRetryingCallerWithReadReplicas
> ------------------------------------------------------------------------------------------
>
>                 Key: HBASE-16172
>                 URL: https://issues.apache.org/jira/browse/HBASE-16172
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Yu Li
>            Assignee: Ted Yu
>         Attachments: 16172.v1.txt, 16172.v2.txt, 16172.v2.txt
>
>
> The issue is pointed out by [~devaraj] in HBASE-16132 (Thanks D.D.), that in {{RpcRetryingCallerWithReadReplicas#call}}
we will call {{ResultBoundedCompletionService#take}} instead of {{poll}} to dead-wait on the
second one if the first replica timed out, while in {{ScannerCallableWithReplicas#call}} we
still use {{ResultBoundedCompletionService#poll}} with some timeout for the 2nd replica.
> This JIRA aims at discussing whether to unify the logic in these two kinds of caller
with region replica and taking action if necessary.



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