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https://issues.apache.org/jira/browse/CASSANDRA-19473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17827443#comment-17827443
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Stefan Miklosovic commented on CASSANDRA-19473:
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Thanks Cam, I think that this qualifies as an improvement, not a bug fix, as
you correctly assumed when you created this ticket. That means that this will
be targetted for trunk branch if we ever reach a consensus this is a sensible
thing to do.
> Latency Spike on NTR startup
> ----------------------------
>
> Key: CASSANDRA-19473
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19473
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Cameron Zemek
> Priority: Normal
>
> Firstly you need the patch from
> https://issues.apache.org/jira/browse/CASSANDRA-18845 to solve consistency
> query errors on startup. With that patch there is still a further issue we
> see on some clusters where the latency spikes too high when initially
> starting. I see pending compactions and hints metrics increased during this
> time.
> I tried lowering the hint delivery threshold across the cluster thinking it
> was overloading the node starting up, but this didn't resolve the issue. So
> at this time I am not sure what the root cause (I still think its combination
> of the compactions and hints).
> As workaround I have this small code change:
> {code:java}
> int START_NATIVE_DELAY =
> Integer.getInteger("cassandra.start_native_transport_delay_secs", 120);
> if (START_NATIVE_DELAY > 0)
> {
> logger.info("Waiting an extra {} seconds before enabling
> NTR", START_NATIVE_DELAY);
> Uninterruptibles.sleepUninterruptibly(START_NATIVE_DELAY,
> TimeUnit.SECONDS);
> }
> startNativeTransport();
> {code}
> Where wait an configurable time before starting native transport. Delaying
> NTR startup resolved the issue.
> A better solution would be to wait for hints/compactions or whatever is root
> cause to complete.
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