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https://issues.apache.org/jira/browse/KUDU-2323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16373030#comment-16373030
 ] 

Jean-Daniel Cryans commented on KUDU-2323:
------------------------------------------

Or [~aserbin].

> NON_VOTER replica flapping (repeatedly added and evicted)
> ---------------------------------------------------------
>
>                 Key: KUDU-2323
>                 URL: https://issues.apache.org/jira/browse/KUDU-2323
>             Project: Kudu
>          Issue Type: Bug
>          Components: consensus
>    Affects Versions: 1.7.0
>            Reporter: Todd Lipcon
>            Priority: Major
>
> In running a YCSB stress workload I see a tablet got into some state where 
> the master flapped back and forth adding and then removing a replica as a 
> NON_VOTER:
> {code}
> I0221 21:54:35.341892 28047 catalog_manager.cc:3274] Sending 
> ChangeConfig:REMOVE_PEER on tablet 4ffc930e9f2148c38e441f19aa230872 (attempt 
> 1)
> I0221 21:54:35.360297 28045 catalog_manager.cc:3162] Sending 
> ChangeConfig:ADD_PEER:NON_VOTER on tablet 4ffc930e9f2148c38e441f19aa230872 
> (attempt 1)
> I0221 21:54:35.612417 28048 catalog_manager.cc:3274] Sending 
> ChangeConfig:REMOVE_PEER on tablet 4ffc930e9f2148c38e441f19aa230872 (attempt 
> 1)
> I0221 21:54:35.713057 28045 catalog_manager.cc:3162] Sending 
> ChangeConfig:ADD_PEER:NON_VOTER on tablet 4ffc930e9f2148c38e441f19aa230872 
> (attempt 1)
> I0221 21:54:35.725723 28045 catalog_manager.cc:3274] Sending 
> ChangeConfig:REMOVE_PEER on tablet 4ffc930e9f2148c38e441f19aa230872 (attempt 
> 1)
> I0221 21:54:35.752959 28052 catalog_manager.cc:3162] Sending 
> ChangeConfig:ADD_PEER:NON_VOTER on tablet 4ffc930e9f2148c38e441f19aa230872 
> (attempt 1)
> I0221 21:54:35.767974 28047 catalog_manager.cc:3274] Sending 
> ChangeConfig:REMOVE_PEER on tablet 4ffc930e9f2148c38e441f19aa230872 (attempt 
> 1)
> I0221 21:54:35.772202 28045 catalog_manager.cc:3162] Sending 
> ChangeConfig:ADD_PEER:NON_VOTER on tablet 4ffc930e9f2148c38e441f19aa230872 
> (attempt 1)
> I0221 21:54:36.291569 28046 catalog_manager.cc:3274] Sending 
> ChangeConfig:REMOVE_PEER on tablet 4ffc930e9f2148c38e441f19aa230872 (attempt 
> 1)
> I0221 21:54:36.296468 28046 catalog_manager.cc:3162] Sending 
> ChangeConfig:ADD_PEER:NON_VOTER on tablet 4ffc930e9f2148c38e441f19aa230872 
> (attempt 1)
> I0221 21:54:36.328945 28045 catalog_manager.cc:3274] Sending 
> ChangeConfig:REMOVE_PEER on tablet 4ffc930e9f2148c38e441f19aa230872 (attempt 
> 1)
> I0221 21:54:36.339675 28045 catalog_manager.cc:3162] Sending 
> ChangeConfig:ADD_PEER:NON_VOTER on tablet 4ffc930e9f2148c38e441f19aa230872 
> (attempt 1)
> I0221 21:54:36.387465 28045 catalog_manager.cc:3274] Sending 
> ChangeConfig:REMOVE_PEER on tablet 4ffc930e9f2148c38e441f19aa230872 (attempt 
> 1)
> I0221 21:54:36.394716 28047 catalog_manager.cc:3162] Sending 
> ChangeConfig:ADD_PEER:NON_VOTER on tablet 4ffc930e9f2148c38e441f19aa230872 
> (attempt 1)
> I0221 21:54:36.398644 28047 catalog_manager.cc:3274] Sending 
> ChangeConfig:REMOVE_PEER on tablet 4ffc930e9f2148c38e441f19aa230872 (attempt 
> 1)
> I0221 21:54:36.405082 28047 catalog_manager.cc:3162] Sending 
> ChangeConfig:ADD_PEER:NON_VOTER on tablet 4ffc930e9f2148c38e441f19aa230872 
> (attempt 1)
> I0221 21:54:36.409888 28048 catalog_manager.cc:3274] Sending 
> ChangeConfig:REMOVE_PEER on tablet 4ffc930e9f2148c38e441f19aa230872 (attempt 
> 1)
> I0221 21:54:36.414216 28046 catalog_manager.cc:3162] Sending 
> ChangeConfig:ADD_PEER:NON_VOTER on tablet 4ffc930e9f2148c38e441f19aa230872 
> (attempt 1)
> I0221 21:54:36.417915 28048 catalog_manager.cc:3274] Sending 
> ChangeConfig:REMOVE_PEER on tablet 4ffc930e9f2148c38e441f19aa230872 (attempt 
> 1)
> I0221 21:54:36.423548 28048 catalog_manager.cc:3162] Sending 
> ChangeConfig:ADD_PEER:NON_VOTER on tablet 4ffc930e9f2148c38e441f19aa230872 
> (attempt 1)
> I0221 21:54:36.453407 28045 catalog_manager.cc:3274] Sending 
> ChangeConfig:REMOVE_PEER on tablet 4ffc930e9f2148c38e441f19aa230872 (attempt 
> 1)
> I0221 21:54:36.552772 28048 catalog_manager.cc:3162] Sending 
> ChangeConfig:ADD_PEER:NON_VOTER on tablet 4ffc930e9f2148c38e441f19aa230872 
> (attempt 1)
> I0221 21:58:01.300199 28053 catalog_manager.cc:3274] Sending 
> ChangeConfig:REMOVE_PEER on tablet 4ffc930e9f2148c38e441f19aa230872 (attempt 
> 1)
> I0221 21:58:01.426921 28046 catalog_manager.cc:3162] Sending 
> ChangeConfig:ADD_PEER:NON_VOTER on tablet 4ffc930e9f2148c38e441f19aa230872 
> (attempt 1)
> I0221 22:01:37.779790 28051 catalog_manager.cc:3274] Sending 
> ChangeConfig:REMOVE_PEER on tablet 4ffc930e9f2148c38e441f19aa230872 (attempt 
> 1)
> {code}



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