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https://issues.apache.org/jira/browse/CASSANDRA-19103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17822449#comment-17822449
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Stefan Miklosovic commented on CASSANDRA-19103:
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[CASSANDRA-19103|https://github.com/instaclustr/cassandra/tree/CASSANDRA-19103]
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[java17_pre-commit_tests|https://app.circleci.com/pipelines/github/instaclustr/cassandra/3944/workflows/979e3a49-6ffc-4c0a-9551-8d6f6b250851]
[java17_separate_tests|https://app.circleci.com/pipelines/github/instaclustr/cassandra/3944/workflows/79303764-d8ac-46e0-b82f-ebc38dd299f2]
[java11_pre-commit_tests|https://app.circleci.com/pipelines/github/instaclustr/cassandra/3944/workflows/5c9ec875-57ff-4949-a4cf-d7c5ea9a9b1d]
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> Filter replicas for counter mutation leader to be JOINED replicas to decouple
> from RPC_READY state
> --------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-19103
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19103
> Project: Cassandra
> Issue Type: Improvement
> Components: Transactional Cluster Metadata
> Reporter: Stefan Miklosovic
> Assignee: Stefan Miklosovic
> Priority: Normal
> Fix For: 5.x
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> In CASSANDRA-18935, what I did was that if transport is turned off while node
> is up, it will set RPC_READY to "false". Before 18935 was in, if you turned
> off transport while node was up and transport was on, RPC_READY was not
> changed to false but it stayed to be "true" for ever.
> Clearly, this was wrong, so I fixed that, but when I did that, the code which
> decides who will be the leader of counter mutation was broken, because that
> node filtered out all nodes for which RPC_READY is false, which never
> happened before, because nobody has set it to "false" on turned off transport.
> So, we decided to revert this regression in 5.0-rc1 and I was waiting for
> CEP-21 to be in because I saw it is rewritten there with TODO to filter
> JOINED nodes.
> Hence, we can decouple this logic and fix RPC_READY status finally.
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