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https://issues.apache.org/jira/browse/CASSANDRA-13548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16030457#comment-16030457
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Jay Zhuang commented on CASSANDRA-13548:
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How about making Paxos TTL configurable:
https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/db/SystemKeyspace.java#L1067
? Why it has to store at least 3 hours Paxos data?
> system.paxos improvements
> -------------------------
>
> Key: CASSANDRA-13548
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13548
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jeff Jirsa
> Priority: Minor
> Fix For: 4.x
>
>
> There are a few practical changes we can make to {{system.paxos}} that will
> improve (especially read) performance for LWT:
> - We should decrease the compression chunk size for situations where we have
> to go to disk
> - We can change the primary key structure so that the row key and CFID are
> both part of the partition key, which will decrease LCS compaction activity
> in use cases where a row key is common across tables, and one table is
> updated more frequently than the other.
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