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https://issues.apache.org/jira/browse/CASSANDRA-8132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14175121#comment-14175121
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Brandon Williams commented on CASSANDRA-8132:
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I see, you want the decom behavior, but only for hints.

> Save or stream hints to a safe place in node replacement
> --------------------------------------------------------
>
>                 Key: CASSANDRA-8132
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8132
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Minh Do
>            Assignee: Minh Do
>             Fix For: 2.1.2
>
>
> Often, we need to replace a node with a new instance in the cloud environment 
> where we have all nodes are still alive. To be safe without losing data, we 
> usually make sure all hints are gone before we do this operation.
> Replacement means we just want to shutdown C* process on a node and bring up 
> another instance to take over that node's token.
> However, if a node to be replaced has a lot of stored hints, its 
> HintedHandofManager seems very slow to send the hints to other nodes.  In our 
> case, we tried to replace a node and had to wait for several days before its 
> stored hints are clear out.  As mentioned above, we need all hints on this 
> node to clear out before we can terminate it and replace it by a new 
> instance/machine.
> Since this is not a decommission, I am proposing that we have the same 
> hints-streaming mechanism as in the decommission code.  Furthermore, there 
> needs to be a cmd for NodeTool to trigger this.



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