[
https://issues.apache.org/jira/browse/CASSANDRA-16079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17231995#comment-17231995
]
Michael Semb Wever commented on CASSANDRA-16079:
------------------------------------------------
Taking advantage of CASSANDRA-16205 this patch pre-generates tokens using the
allocation strategy (for RF=3).
https://github.com/riptano/ccm/compare/cassandra-test...thelastpickle:mck/16205
Those dtests that want the token allocation strategy generation to happen when
the node bootstraps can disable it using
{code}
cluster.set_environment_variable('CASSANDRA_TOKEN_PREGENERATION_DISABLED', True)
{code}
> Improve dtest runtime
> ---------------------
>
> Key: CASSANDRA-16079
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16079
> Project: Cassandra
> Issue Type: Improvement
> Components: CI
> Reporter: Adam Holmberg
> Assignee: Michael Semb Wever
> Priority: Normal
> Fix For: 4.0.x
>
> Attachments: Screenshot 2020-09-19 at 12.32.21.png
>
>
> A recent ticket, CASSANDRA-13701, changed the way dtests run, resulting in a
> [30% increase in run
> time|https://www.mail-archive.com/dev@cassandra.apache.org/msg15606.html].
> While that change was accepted, we wanted to spin out a ticket to optimize
> dtests in an attempt to gain back some of that runtime.
> At this time we don't have concrete improvements in mind, so the first order
> of this ticket will be to analyze the state of things currently, and try to
> ascertain some valuable optimizations. Once the problems are understood, we
> will break down subtasks to divide the work.
> Some areas to consider:
> * cluster reuse
> * C* startup optimizations
> * Tests that should be ported to in-JVM dtest or even unit tests
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org
For additional commands, e-mail: commits-h...@cassandra.apache.org
