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https://issues.apache.org/jira/browse/CASSANDRA-16877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Caleb Rackliffe updated CASSANDRA-16877:
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Reviewers: Caleb Rackliffe
> High priority internode messages which exceed the large message threshold are
> dropped
> -------------------------------------------------------------------------------------
>
> Key: CASSANDRA-16877
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16877
> Project: Cassandra
> Issue Type: Bug
> Components: Cluster/Gossip
> Reporter: Sam Tunnicliffe
> Assignee: Sam Tunnicliffe
> Priority: Normal
> Fix For: 4.0.x
>
>
> Currently, there is an assumption that internode messages whose verb has
> priority P0 will always fit within a single messaging frame. While this is
> usually the case, on occasion it is possible that this assumption does not
> hold. One example is gossip messages during the startup shadow round, where
> in very large clusters the digest ack can contain all states for every peer.
> In this scenario, the respondent fails to send the ack which may lead to the
> shadow round and, ultimately, the startup failing.
>
> We could tweak the shadow round acks to minimise the message size, but a more
> robust solution would be to permit high priority messages to be sent on the
> large messages connection when necessary.
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