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https://issues.apache.org/jira/browse/CASSANDRA-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16385675#comment-16385675
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ZhaoYang commented on CASSANDRA-14251:
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This patch LGTM, thanks for the fix.
> View replica is not written to pending endpoint when base replica is also
> view replica
> --------------------------------------------------------------------------------------
>
> Key: CASSANDRA-14251
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14251
> Project: Cassandra
> Issue Type: Bug
> Components: Materialized Views
> Reporter: Paulo Motta
> Assignee: Paulo Motta
> Priority: Major
> Fix For: 4.0, 3.0.17, 3.11.3
>
>
> From the [dev
> list|https://www.mail-archive.com/dev@cassandra.apache.org/msg12084.html]:
> bq. There's an optimization that when we're lucky enough that the paired view
> replica is the same as this base replica, mutateMV doesn't use the normal
> view-mutation-sending code (wrapViewBatchResponseHandler) and just writes the
> mutation locally. In particular, in this case we do NOT write to the pending
> node (unless I'm missing something). But, sometimes all replicas will be
> paired with themselves - this can happen for example when number of nodes is
> equal to RF, or when the base and view table have the same partition keys
> (but different clustering keys). In this case, it seems the pending node will
> not be written at all...
> This was a regression from CASSANDRA-13069 and the original behavior should
> be restored.
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