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From Steven Wu <stevenz...@gmail.com>
Subject akka timeout with metric fetcher
Date Fri, 18 Aug 2017 05:25:27 GMT
We have set akka.ask.timeout to 60 s in yaml file. I also confirmed the
setting in Flink UI. But I saw akka timeout of 10 s for metric query
service. two questions
1) why doesn't metric query use the 60 s value configured in yaml file?
does it always use default 10 s value?
2) could this cause heartbeat failure between task manager and job manager?
or is this just non-critical failure that won't affect job health?

Thanks,
Steven

2017-08-17 23:34:33,421 WARN
org.apache.flink.runtime.webmonitor.metrics.MetricFetcher
- Fetching metrics failed. akka.pattern.AskTimeoutException: Ask timed out
on [Actor[akka.tcp://flink@1.2.3.4:39139/user/MetricQueryService_
23cd9db754bb7d123d80e6b1c0be21d6]] after [10000 ms] at
akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:334)
at akka.actor.Scheduler$$anon$7.run(Scheduler.scala:117) at
scala.concurrent.Future$InternalCallbackExecutor$.
unbatchedExecute(Future.scala:599) at scala.concurrent.
BatchingExecutor$class.execute(BatchingExecutor.scala:109) at
scala.concurrent.Future$InternalCallbackExecutor$.execute(Future.scala:597)
at akka.actor.LightArrayRevolverScheduler$TaskHolder.executeTask(Scheduler.scala:474)
at akka.actor.LightArrayRevolverScheduler$$anon$8.executeBucket$1(Scheduler.scala:425)
at akka.actor.LightArrayRevolverScheduler$$anon$8.nextTick(Scheduler.scala:429)
at akka.actor.LightArrayRevolverScheduler$$anon$8.run(Scheduler.scala:381)
at java.lang.Thread.run(Thread.java:748)

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