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Posted to issues@ozone.apache.org by "Bharat Viswanadham (Jira)" <ji...@apache.org> on 2020/02/20 20:35:00 UTC

[jira] [Created] (HDDS-3046) Fix Retry handling in Rpc Client

Bharat Viswanadham created HDDS-3046:
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             Summary: Fix Retry handling in Rpc Client
                 Key: HDDS-3046
                 URL: https://issues.apache.org/jira/browse/HDDS-3046
             Project: Hadoop Distributed Data Store
          Issue Type: New Feature
            Reporter: Bharat Viswanadham
            Assignee: Bharat Viswanadham


Right now for all other exceptions other than serviceException we use FailOverOnNetworkException.

This Exception policy is created with 15 max fail overs and 15 retries. 

 
{code:java}
retryPolicyOnNetworkException.shouldRetry(
 exception, retries, failovers, isIdempotentOrAtMostOnce);{code}
*2 issues with this:*
 # When shouldRetry returns action FAILOVER_AND_RETRY, it will stuck with same OM, and does not perform failover to next OM.  As OMFailoverProxyProvider#performFailover() is a dummy call does not perform any failover.
 # When ozone.client.failover.max.attempts is set to 15, now with 2 policies with each set to 15, we will retry 15*2 times in worst scenario. 

 

 



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