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https://issues.apache.org/jira/browse/CASSANDRA-14485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16662353#comment-16662353
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Jason Brown commented on CASSANDRA-14485:
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bq. make it easier to defer deserialization until the entire contents are in
memory
Correct, as we never want to block (for deserialization) on the netty event loop
> Optimize internode messaging protocol
> -------------------------------------
>
> Key: CASSANDRA-14485
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14485
> Project: Cassandra
> Issue Type: Improvement
> Components: Streaming and Messaging
> Reporter: Jason Brown
> Assignee: Jason Brown
> Priority: Major
> Fix For: 4.0
>
>
> There's some dead wood and places for optimization in the internode messaging
> protocol. Currently, we include the sender's \{{IPAddressAndPort}} in *every*
> internode message, even though we already sent that in the handshake that
> established the connection/session. Further, there are several places where
> we can use vints instead of a fixed, 4-byte integer value- especially as
> those values will almost always be less than one byte.
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