[Hawkular-dev] Metrics: Cassandra Driver timeouts during the build

[Filip Brychta]

I've seen this exception several times but only when hitting h-metrics with heavy load -> if there is no load it will be probably env issue.
I also noticed that it takes longer to start up cassandra version 3.x then 2.x. Is the cassandra node fully up before starting h-metrics?

Filip


----- Original Message -----
> Hi *,
> 
> Short version: doubling the read timeouts [1] for all three uses of
> Cassandra Driver solved the problem for me. Is this a good idea? Can
> anybody see a better solution to my problem?
> 
> 
> Long version:
> 
> https://issues.jboss.org/browse/HWKMETRICS-404
> 
> As some of you already know from my complaints on IRC, I have not been
> able to build Metrics since a couple of weeks.
> 
> My builds failed mostly on core-services but sometimes also in
> configuration-service and resr-tests-jaxrs, the error always being the same:
> 
> com.datastax.driver.core.exceptions.NoHostAvailableException: All
> host(s) tried for query failed (tried: /127.0.0.1:9042
> (com.datastax.driver.core.exceptions.OperationTimedOutException:
> [/127.0.0.1] Timed out waiting for server response))
> 
> The whole build log: http://paste.fedoraproject.org/372623/46116551/
> 
> This started happening at some point after my PR
> https://github.com/hawkular/hawkular-metrics/pull/478 was merged. I do
> not say this PR is the cause, this is just an attempt to narrow down the
> set of commits that might have introduced the problem.
> 
> As nobody else (incl. Travis) complained about anything similar, I was
> thinking the issue must be somewhere in my environment. I double checked
> I use the right Cassandra version, ulimits, Java version, Maven version,
> system updates, but nothing helped.
> 
> Then I tried doubling the read timeouts [1] for all three uses of
> Cassandra Driver and the build started passing again. Is this a good
> idea? Can anybody see a better solution to my problem?
> 
> [1] https://github.com/hawkular/hawkular-metrics/pull/510
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