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https://issues.apache.org/jira/browse/CASSANDRA-5916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13788570#comment-13788570
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Ravi Prasad commented on CASSANDRA-5916:
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>That is true regardless of shadow mode though, since hibernate is a dead state 
>and the node doesn't go live to reset the hint timer > until the replace has 
>completed.

my understanding is due to the generation change of the replacing node, 
gossiper.handleMajorStateChange marks the node as dead, as hibernate is one of 
the DEAD_STATES. So, the other nodes marks the replacing node as dead before 
the token bootstrap starts, hence should be storing hints to the replacing node 
from that point.

> gossip and tokenMetadata get hostId out of sync on failed replace_node with 
> the same IP address
> -----------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-5916
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5916
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Brandon Williams
>            Assignee: Brandon Williams
>             Fix For: 1.2.11
>
>         Attachments: 5916.txt
>
>
> If you try to replace_node an existing, live hostId, it will error out.  
> However if you're using an existing IP to do this (as in, you chose the wrong 
> uuid to replace on accident) then the newly generated hostId wipes out the 
> old one in TMD, and when you do try to replace it replace_node will complain 
> it does not exist.  Examination of gossipinfo still shows the old hostId, 
> however now you can't replace it either.



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