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https://issues.apache.org/jira/browse/CASSANDRA-13701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17180600#comment-17180600
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Ekaterina Dimitrova commented on CASSANDRA-13701:
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I ran [~brandon.williams]'s [patch |
https://github.com/driftx/cassandra/tree/CASSANDRA-13701] with [~adejanovski]'s
[dtest | https://github.com/adejanovski/cassandra-dtest/tree/CASSANDRA-13701]
and [ccm | https://github.com/adejanovski/ccm/tree/CASSANDRA-13701] patches
with MID res in CircleCI [here |
https://app.circleci.com/pipelines/github/ekaterinadimitrova2/cassandra/308/workflows/27370106-78be-478d-8138-3add0f46102f].
Dtests run durations changed as follows:
* with vnodes - 22 to 43 minutes
* without vnodes - 18 to 28 minutes
> Lower default num_tokens
> ------------------------
>
> Key: CASSANDRA-13701
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13701
> Project: Cassandra
> Issue Type: Improvement
> Components: Local/Config
> Reporter: Chris Lohfink
> Assignee: Alexander Dejanovski
> Priority: Low
> Fix For: 4.0-alpha
>
>
> For reasons highlighted in CASSANDRA-7032, the high number of vnodes is not
> necessary. It is very expensive for operations processes and scanning. Its
> come up a lot and its pretty standard and known now to always reduce the
> num_tokens within the community. We should just lower the defaults.
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