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https://issues.apache.org/jira/browse/CASSANDRA-1938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13004574#comment-13004574
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T Jake Luciani commented on CASSANDRA-1938:
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I'm interested in seeing more of the performance impact of this change, I
created CASSANDRA-2299 to help.
> 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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