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https://issues.apache.org/jira/browse/CASSANDRA-1938?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylvain Lebresne updated CASSANDRA-1938:
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Attachment: 0003-Thrift-change-to-CfDef.patch
0002-Merge-old-shard-locally.patch
0001-Use-uuid-instead-of-IP-for-counters.patch
Re-attaching rebased patch.
The second patch implements a solution to merge old nodeId that has been
renewed, fixing for the most part the main drawback of the previous patch
(counter context should be kept reasonably small). It's honestly a bit
under-tested, I've tested write and read, but I haven't tested more complicated
scenario involving cluster membership changes. I'll get at it but attaching in
the hope to get feedback sooner than later.
Last patch is just modifications to the thrift generated files implied by the
second patch.
> 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_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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