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From "Subru Krishnan (JIRA)" <j...@apache.org>
Subject [jira] [Moved] (HADOOP-14105) Failure handling and retry for performFailover in RetryInvocationHandler
Date Wed, 22 Feb 2017 20:58:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-14105?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Subru Krishnan moved YARN-6213 to HADOOP-14105:
-----------------------------------------------

        Key: HADOOP-14105  (was: YARN-6213)
    Project: Hadoop Common  (was: Hadoop YARN)

> Failure handling and retry for performFailover in RetryInvocationHandler 
> -------------------------------------------------------------------------
>
>                 Key: HADOOP-14105
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14105
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Botong Huang
>            Assignee: Botong Huang
>            Priority: Minor
>
> In {{RetryInvocationHandler}}, when the method invocation fails, we reply on {{FailoverProxyProvider}}
to performFailover and get a new proxy, so that we can retry the method invocation. 
> However, the performFailover and get new proxy itself might fail (throw exception or
return null proxy). This is not handled properly currently, we end up throwing the exception
out of the while loop. Instead, we should catch the exception (or check for null proxy) and
retry performFailover again, until the max fail over count reaches the maximum. 



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