[jira] Commented: (CASSANDRA-957) convenience workflow for replacing dead node

["Nick Bailey (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-957?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12991058#comment-12991058 ] 

Nick Bailey commented on CASSANDRA-957:
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What happens if I bring up a node with the same ip and bootstrap on but forget the replace option? It looks like it will try to bootstrap to an auto picked token. Am I reading that right?

What happens if I accidentally give the wrong token with the replace option? If I accidentally give the token for a live node will it try to bootstrap to the same position?

> convenience workflow for replacing dead node
> --------------------------------------------
>
>                 Key: CASSANDRA-957
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-957
>             Project: Cassandra
>          Issue Type: Wish
>          Components: Core, Tools
>            Reporter: Jonathan Ellis
>            Assignee: Chris Goffinet
>             Fix For: 0.8
>
>         Attachments: 0001-Support-bringing-back-a-node-to-the-cluster-that-exi.patch, 0002-Do-not-include-local-node-when-computing-workMap.patch
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> Replacing a dead node with a new one is a common operation, but "nodetool removetoken" followed by bootstrap is inefficient (re-replicating data first to the remaining nodes, then to the new one) and manually bootstrapping to a token "just less than" the old one's, followed by "nodetool removetoken" is slightly painful and prone to manual errors.
> First question: how would you expose this in our tool ecosystem?  It needs to be a startup-time option to the new node, so it can't be nodetool, and messing with the config xml definitely takes the "convenience" out.  A one-off -DreplaceToken=XXY argument?

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