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https://issues.apache.org/jira/browse/RATIS-2259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17935775#comment-17935775
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Tsz-wo Sze commented on RATIS-2259:
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bq. ... the p999 for the server is ~1 ms. ...
It does not tell the parallelism -- 1ms is just 1k IOPS if it is sequential.
> Improve the read latency of RaftClient
> --------------------------------------
>
> Key: RATIS-2259
> URL: https://issues.apache.org/jira/browse/RATIS-2259
> Project: Ratis
> Issue Type: Improvement
> Components: client
> Reporter: Andy Wu
> Priority: Major
>
> Hey Folks,
> We are using ratis library to perform around ~2K/s read operations. Here is
> the API we are using:
> {code:java}
> RaftClient#sendReadOnlyAsync ==> it is OrderedAsync{code}
> I understand the above API is ordered, it will be filed sequentially. The
> read latency is keeping going up for each cid:
> e.g.
> duration: 15 ms, cid=2
> duration: 20 ms, cid=3
> …..
> duration: 100 ms, cid=100
> For the read operations, the order is not important to us. How do we improve
> the latency while keeping the throughput high? I tried *UnorderedAsync,* it
> has similar behaviors. Anything I missed?
>
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