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Stefania commented on CASSANDRA-11488:
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Thank you for explaining in such detail. I agree to leave it as it is.
When I was debugging the failures reported in CASSANDRA-11255, I hadn't noticed
that dynamic snitch is enabled. Therefore, {{SimpleSnitch}} is not even the
culprit; it must be the dynamic snitch that rarely reads from another replica.
I am going to add a doc impacting label to this ticket, so that replica
selection for simple and dynamic snitch gets documented.
I've also reworded my comment on the default snitch in the test code, pull
request [here|https://github.com/riptano/cassandra-dtest/pull/916].
> Bug or not?: coordinator using SimpleSnitch may query other nodes for copies
> of local data
> -------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-11488
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11488
> Project: Cassandra
> Issue Type: Bug
> Components: Coordination
> Reporter: Jim Witschey
> Assignee: Stefania
> Priority: Minor
> Labels: doc-impacting
>
> As [~Stefania] explains [in this JIRA
> comment|https://issues.apache.org/jira/browse/CASSANDRA-11225?focusedCommentId=15221059&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15221059],
> {{SimpleSnitch}} does not implement
> {{IEndpointSnitch.sortByProximity(localhost, liveendpoints)}}, so a query for
> data on the coordinator may query other nodes. That seems like unnecessary
> work to me, and on that note, Stefania woonders [in this JIRA
> comment|https://issues.apache.org/jira/browse/CASSANDRA-11225?focusedCommentId=15223598&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15223598]
> - should this be considered a bug?
> Stefania, I'm assigning you here -- could you find the right people to
> involve in this discussion?
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