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https://issues.apache.org/jira/browse/CASSANDRA-14729?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16612346#comment-16612346
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Ariel Weisberg commented on CASSANDRA-14729:
--------------------------------------------
This refers to
{{[AbstractWriteResponseHandler.maybeTryAdditionalReplicas|https://github.com/apache/cassandra/blob/2046c30adec194fb07bc5dd1c31fc19a64e7895c/src/java/org/apache/cassandra/service/AbstractWriteResponseHandler.java#L316]}}
which tries all available uncontacted replicas instead of just 1 more
necessary replica where we might be missing one.
This would happen 1% of the time even in a healthy scenario.
> Transient Replication: rapid transient write protection writes to all
> uncontacted replicas
> ------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-14729
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14729
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Benedict
> Priority: Major
> Labels: performance, transient-replication
> Fix For: 4.x
>
>
> This is wasteful both on a per-node level, but especially at the DC level, as
> we will now double our inter-DC traffic when there is a struggling node
> anywhere for the range.
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