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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1518) remember ring state between restarts
Date Thu, 30 Sep 2010 01:42:33 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12916339#action_12916339
] 

Brandon Williams commented on CASSANDRA-1518:
---------------------------------------------

Yes, though addSavedEndpoint needs to set the heartbeat generation to something higher than
zero.  The IP can take over the token at that point, but the state is never updated.   I'll
have to investigate further.

> remember ring state between restarts
> ------------------------------------
>
>                 Key: CASSANDRA-1518
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1518
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Brandon Williams
>             Fix For: 0.7.0
>
>         Attachments: 1518.txt
>
>
> default behavior should be to remember the nodes we've seen before.  we're already storing
ip/token pairs in systemtable, but we're not removing them when removetoken is issued.
> we probably want to leave some trace of nodes-that-used-to-participate-but-were-removed,
but instead of having a historical track in systemtable let's just add something to the gossip
listener in StorageService that logs token when a node comes up.
> finally, there should be a flag (-D?  config?) for bringing up a node in don't-assume-anything-about-the-ring
mode as a fallback in case we run into more funky token-related bugs.

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