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https://issues.apache.org/jira/browse/CASSANDRA-12837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15607901#comment-15607901
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vincent royer commented on CASSANDRA-12837:
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This was intended for fast Elasticsearch index rebuild in Elassandra (Cassandra
with embedded Elasticsearch). This is the reason why using cassandra 2.2 (but
will upgrade to C* 3.x soon) and using only Murmur3 partitioner (but may be
possible with others). As compaction is a slow background process, i have used
an ephemeral thread executor pool sized by the end-user to achieve index
rebuild according to its needs (rebuild fast with a CPU overhead, or rebuild
slow in background).
> Add multi-threaded support to nodetool rebuild_index
> ----------------------------------------------------
>
> Key: CASSANDRA-12837
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12837
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: vincent royer
> Priority: Minor
> Labels: patch
> Fix For: 2.2.9
>
> Attachments: CASSANDRA-12837-2.2.9.txt
>
>
> Add multi-thread nodetool rebuild_index to improve performances.
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