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Posted to commits@cassandra.apache.org by "Saranya Krishnakumar (Jira)" <ji...@apache.org> on 2022/10/20 00:06:00 UTC
[jira] [Commented] (CASSANDRA-17870) nodetool/rebuild: Add flag to exclude nodes from local datacenter
[ https://issues.apache.org/jira/browse/CASSANDRA-17870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17620650#comment-17620650 ]
Saranya Krishnakumar commented on CASSANDRA-17870:
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[~yifanc] created a PR [https://github.com/apache/cassandra/pull/1931 |https://github.com/apache/cassandra/pull/1931,]
> nodetool/rebuild: Add flag to exclude nodes from local datacenter
> -----------------------------------------------------------------
>
> Key: CASSANDRA-17870
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17870
> Project: Cassandra
> Issue Type: Improvement
> Components: Tool/nodetool
> Reporter: Saranya Krishnakumar
> Assignee: Saranya Krishnakumar
> Priority: Normal
> Attachments: fix_nodetool_rebuild.diff
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> During expansion by Dc, when we issue nodetool/rebuild from new dc to rebuild the data from other DCs. If src-dc is not passed explicitly, then C* tries to rebuild the data from the same (new dc) dc.
> We don’t exclude other nodes in the same DC. Only down sources and the local node itself are excluded.
> ```
> // We're _always_ filtering out a local node and down sources
> addSourceFilter(new RangeStreamer.FailureDetectorSourceFilter(failureDetector));
> addSourceFilter(new RangeStreamer.ExcludeLocalNodeFilter());
> ```
> We should fix nodetool/rebuild to exclude the local DC (from where we’re executing the command) while issuing nodetool/rebuild without passing src dc
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