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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1938) Use UUID as node identifiers in counters instead of IP addresses
Date Thu, 10 Mar 2011 20:28:59 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13005315#comment-13005315
] 

Jonathan Ellis commented on CASSANDRA-1938:
-------------------------------------------

that's been failing for a while, it's not this patch causing it.

> Use UUID as node identifiers in counters instead of IP addresses 
> -----------------------------------------------------------------
>
>                 Key: CASSANDRA-1938
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1938
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Sylvain Lebresne
>            Assignee: Sylvain Lebresne
>             Fix For: 0.8
>
>         Attachments: 0001-Use-uuid-instead-of-IP-for-counters.patch, 0002-Merge-old-shard-locally.patch,
0003-Thrift-change-to-CfDef.patch, 1938-rebase-and-fix-v1.txt, 1938_discussion
>
>   Original Estimate: 56h
>  Remaining Estimate: 56h
>
> The use of IP addresses as node identifiers in the partition of a given
> counter is fragile. Changes of the node's IP addresses can result in data
> loss. This patch proposes to use UUIDs instead.
> NOTE: this breaks the on-disk file format (for counters)

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