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From Simone Robutti <simone.robu...@radicalbit.io>
Subject Re: Error related to JMX and metrics
Date Wed, 25 May 2016 16:36:36 GMT
There were many errors after these (null pointers among them) so I assumed
they were a consequence. If you say this shouldn't be the primary cause of
the failure, tomorrow I will retry and post the complete log.

2016-05-25 18:09 GMT+02:00 Stephan Ewen <sewen@apache.org>:

> Hi!
>
> I am curious why that actually fails the job. While it is true, these
> errors need to be solved, they should only be logged, never cause a
> failure.
>
> Stephan
>
>
> On Wed, May 25, 2016 at 3:49 PM, Maximilian Michels <mxm@apache.org>
> wrote:
>
> > Hi Simone,
> >
> > If you don't want to wait, you could also revert these commits and
> rebuild:
> >
> > git revert 5b9872492394026f3e6ac31b9937141ebedb1481
> > git revert 707606ac40dbbbd497fcbbb5442870fec5468bf3
> > git revert 003ce18efc0249fae874e56c3df6acf19f5f2429
> >
> > This will remove the newly added metrics reporting features.
> >
> > Cheers,
> > Max
> >
> >
> > On Wed, May 25, 2016 at 3:11 PM, Simone Robutti
> > <simone.robutti@radicalbit.io> wrote:
> > > Ok, I will wait then.
> > >
> > > Thank you.
> > >
> > > 2016-05-25 15:06 GMT+02:00 Stephan Ewen <sewen@apache.org>:
> > >
> > >> Hi!
> > >>
> > >> This can be an issue in the latest master (because the test
> > infrastructure
> > >> was broken, it was not detected)
> > >> https://issues.apache.org/jira/browse/FLINK-3962
> > >>
> > >> Will be fixed soon.
> > >>
> > >> Stephan
> > >>
> > >>
> > >> On Wed, May 25, 2016 at 2:22 PM, Simone Robutti <
> > >> simone.robutti@radicalbit.io> wrote:
> > >>
> > >> > Running a job I encounter the following error that leads the job to
> > >> failure
> > >> > in the end.
> > >> >
> > >> > 14:09:34,722 ERROR org.apache.flink.metrics.reporter.JMXReporter
> > >> >       - A metric with the name
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics:key0=localhost,key1=taskmanager,key2=04a8fea67d01fbbdab5bba8c7e9a73d8,key3=Flink_Java_Job_at_Wed_May_25_14-09-14_CEST_2016,key4=<task_name>,name=numBytesIn
> > >> > was already registered.
> > >> > javax.management.InstanceAlreadyExistsException:
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics:key0=localhost,key1=taskmanager,key2=04a8fea67d01fbbdab5bba8c7e9a73d8,key3=Flink_Java_Job_at_Wed_May_25_14-09-14_CEST_2016,key4=<task_name>,name=numBytesIn
> > >> > at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.reporter.JMXReporter.notifyOfAddedMetric(JMXReporter.java:76)
> > >> > at
> > >> >
> > org.apache.flink.metrics.MetricRegistry.register(MetricRegistry.java:177)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.AbstractMetricGroup.addMetric(AbstractMetricGroup.java:191)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.AbstractMetricGroup.counter(AbstractMetricGroup.java:144)
> > >> > at
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.IOMetricGroup.<init>(IOMetricGroup.java:40)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.TaskMetricGroup.<init>(TaskMetricGroup.java:68)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.JobMetricGroup.addTask(JobMetricGroup.java:74)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.TaskManagerMetricGroup.addTaskForJob(TaskManagerMetricGroup.java:86)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.taskmanager.TaskManager.submitTask(TaskManager.scala:1092)
> > >> > at org.apache.flink.runtime.taskmanager.TaskManager.org
> > >> >
> > >> >
> > >>
> >
> $apache$flink$runtime$taskmanager$TaskManager$$handleTaskMessage(TaskManager.scala:441)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.taskmanager.TaskManager$$anonfun$handleMessage$1.applyOrElse(TaskManager.scala:283)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.LeaderSessionMessageFilter$$anonfun$receive$1.applyOrElse(LeaderSessionMessageFilter.scala:36)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
> > >> > at
> > >>
> org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:33)
> > >> > at
> > >>
> org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:28)
> > >> > at
> scala.PartialFunction$class.applyOrElse(PartialFunction.scala:118)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.LogMessages$$anon$1.applyOrElse(LogMessages.scala:28)
> > >> > at akka.actor.Actor$class.aroundReceive(Actor.scala:465)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.taskmanager.TaskManager.aroundReceive(TaskManager.scala:124)
> > >> > at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
> > >> > at akka.actor.ActorCell.invoke(ActorCell.scala:487)
> > >> > at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:254)
> > >> > at akka.dispatch.Mailbox.run(Mailbox.scala:221)
> > >> > at akka.dispatch.Mailbox.exec(Mailbox.scala:231)
> > >> > at
> > scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
> > >> > at
> > >>
> scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> > >> > 14:09:34,728 ERROR org.apache.flink.metrics.reporter.JMXReporter
> > >> >       - A metric with the name
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics:key0=localhost,key1=taskmanager,key2=04a8fea67d01fbbdab5bba8c7e9a73d8,key3=Flink_Java_Job_at_Wed_May_25_14-09-14_CEST_2016,key4=<task_name>,name=numBytesOut
> > >> > was already registered.
> > >> > javax.management.InstanceAlreadyExistsException:
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics:key0=localhost,key1=taskmanager,key2=04a8fea67d01fbbdab5bba8c7e9a73d8,key3=Flink_Java_Job_at_Wed_May_25_14-09-14_CEST_2016,key4=<task_name>,name=numBytesOut
> > >> > at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.reporter.JMXReporter.notifyOfAddedMetric(JMXReporter.java:76)
> > >> > at
> > >> >
> > org.apache.flink.metrics.MetricRegistry.register(MetricRegistry.java:177)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.AbstractMetricGroup.addMetric(AbstractMetricGroup.java:191)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.AbstractMetricGroup.counter(AbstractMetricGroup.java:144)
> > >> > at
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.IOMetricGroup.<init>(IOMetricGroup.java:41)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.TaskMetricGroup.<init>(TaskMetricGroup.java:68)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.JobMetricGroup.addTask(JobMetricGroup.java:74)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.TaskManagerMetricGroup.addTaskForJob(TaskManagerMetricGroup.java:86)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.taskmanager.TaskManager.submitTask(TaskManager.scala:1092)
> > >> > at org.apache.flink.runtime.taskmanager.TaskManager.org
> > >> >
> > >> >
> > >>
> >
> $apache$flink$runtime$taskmanager$TaskManager$$handleTaskMessage(TaskManager.scala:441)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.taskmanager.TaskManager$$anonfun$handleMessage$1.applyOrElse(TaskManager.scala:283)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.LeaderSessionMessageFilter$$anonfun$receive$1.applyOrElse(LeaderSessionMessageFilter.scala:36)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
> > >> > at
> > >>
> org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:33)
> > >> > at
> > >>
> org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:28)
> > >> > at
> scala.PartialFunction$class.applyOrElse(PartialFunction.scala:118)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.LogMessages$$anon$1.applyOrElse(LogMessages.scala:28)
> > >> > at akka.actor.Actor$class.aroundReceive(Actor.scala:465)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.taskmanager.TaskManager.aroundReceive(TaskManager.scala:124)
> > >> > at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
> > >> > at akka.actor.ActorCell.invoke(ActorCell.scala:487)
> > >> > at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:254)
> > >> > at akka.dispatch.Mailbox.run(Mailbox.scala:221)
> > >> > at akka.dispatch.Mailbox.exec(Mailbox.scala:231)
> > >> > at
> > scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
> > >> > at
> > >>
> scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> > >> > 14:09:34,730 ERROR org.apache.flink.metrics.reporter.JMXReporter
> > >> >       - A metric with the name
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics:key0=localhost,key1=taskmanager,key2=04a8fea67d01fbbdab5bba8c7e9a73d8,key3=Flink_Java_Job_at_Wed_May_25_14-09-14_CEST_2016,key4=<task_name>,name=numRecordsIn
> > >> > was already registered.
> > >> > javax.management.InstanceAlreadyExistsException:
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics:key0=localhost,key1=taskmanager,key2=04a8fea67d01fbbdab5bba8c7e9a73d8,key3=Flink_Java_Job_at_Wed_May_25_14-09-14_CEST_2016,key4=<task_name>,name=numRecordsIn
> > >> > at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.reporter.JMXReporter.notifyOfAddedMetric(JMXReporter.java:76)
> > >> > at
> > >> >
> > org.apache.flink.metrics.MetricRegistry.register(MetricRegistry.java:177)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.AbstractMetricGroup.addMetric(AbstractMetricGroup.java:191)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.AbstractMetricGroup.counter(AbstractMetricGroup.java:144)
> > >> > at
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.IOMetricGroup.<init>(IOMetricGroup.java:42)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.TaskMetricGroup.<init>(TaskMetricGroup.java:68)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.JobMetricGroup.addTask(JobMetricGroup.java:74)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.TaskManagerMetricGroup.addTaskForJob(TaskManagerMetricGroup.java:86)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.taskmanager.TaskManager.submitTask(TaskManager.scala:1092)
> > >> > at org.apache.flink.runtime.taskmanager.TaskManager.org
> > >> >
> > >> >
> > >>
> >
> $apache$flink$runtime$taskmanager$TaskManager$$handleTaskMessage(TaskManager.scala:441)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.taskmanager.TaskManager$$anonfun$handleMessage$1.applyOrElse(TaskManager.scala:283)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.LeaderSessionMessageFilter$$anonfun$receive$1.applyOrElse(LeaderSessionMessageFilter.scala:36)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
> > >> > at
> > >>
> org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:33)
> > >> > at
> > >>
> org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:28)
> > >> > at
> scala.PartialFunction$class.applyOrElse(PartialFunction.scala:118)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.LogMessages$$anon$1.applyOrElse(LogMessages.scala:28)
> > >> > at akka.actor.Actor$class.aroundReceive(Actor.scala:465)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.taskmanager.TaskManager.aroundReceive(TaskManager.scala:124)
> > >> > at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
> > >> > at akka.actor.ActorCell.invoke(ActorCell.scala:487)
> > >> > at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:254)
> > >> > at akka.dispatch.Mailbox.run(Mailbox.scala:221)
> > >> > at akka.dispatch.Mailbox.exec(Mailbox.scala:231)
> > >> > at
> > scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
> > >> > at
> > >>
> scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> > >> > 14:09:34,732 ERROR org.apache.flink.metrics.reporter.JMXReporter
> > >> >       - A metric with the name
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics:key0=localhost,key1=taskmanager,key2=04a8fea67d01fbbdab5bba8c7e9a73d8,key3=Flink_Java_Job_at_Wed_May_25_14-09-14_CEST_2016,key4=<task_name>,name=numRecordsOut
> > >> > was already registered.
> > >> > javax.management.InstanceAlreadyExistsException:
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics:key0=localhost,key1=taskmanager,key2=04a8fea67d01fbbdab5bba8c7e9a73d8,key3=Flink_Java_Job_at_Wed_May_25_14-09-14_CEST_2016,key4=<task_name>,name=numRecordsOut
> > >> > at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.reporter.JMXReporter.notifyOfAddedMetric(JMXReporter.java:76)
> > >> > at
> > >> >
> > org.apache.flink.metrics.MetricRegistry.register(MetricRegistry.java:177)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.AbstractMetricGroup.addMetric(AbstractMetricGroup.java:191)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.AbstractMetricGroup.counter(AbstractMetricGroup.java:144)
> > >> > at
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.IOMetricGroup.<init>(IOMetricGroup.java:43)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.TaskMetricGroup.<init>(TaskMetricGroup.java:68)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.JobMetricGroup.addTask(JobMetricGroup.java:74)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.metrics.groups.TaskManagerMetricGroup.addTaskForJob(TaskManagerMetricGroup.java:86)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.taskmanager.TaskManager.submitTask(TaskManager.scala:1092)
> > >> > at org.apache.flink.runtime.taskmanager.TaskManager.org
> > >> >
> > >> >
> > >>
> >
> $apache$flink$runtime$taskmanager$TaskManager$$handleTaskMessage(TaskManager.scala:441)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.taskmanager.TaskManager$$anonfun$handleMessage$1.applyOrElse(TaskManager.scala:283)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.LeaderSessionMessageFilter$$anonfun$receive$1.applyOrElse(LeaderSessionMessageFilter.scala:36)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
> > >> > at
> > >>
> org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:33)
> > >> > at
> > >>
> org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:28)
> > >> > at
> scala.PartialFunction$class.applyOrElse(PartialFunction.scala:118)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.LogMessages$$anon$1.applyOrElse(LogMessages.scala:28)
> > >> > at akka.actor.Actor$class.aroundReceive(Actor.scala:465)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> org.apache.flink.runtime.taskmanager.TaskManager.aroundReceive(TaskManager.scala:124)
> > >> > at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
> > >> > at akka.actor.ActorCell.invoke(ActorCell.scala:487)
> > >> > at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:254)
> > >> > at akka.dispatch.Mailbox.run(Mailbox.scala:221)
> > >> > at akka.dispatch.Mailbox.exec(Mailbox.scala:231)
> > >> > at
> > scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
> > >> > at
> > >>
> scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> > >> > at
> > >> >
> > >> >
> > >>
> >
> scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> > >> >
> > >> >
> > >> > Here is the interesting part of the source
> > >> >
> > >> > val distCOO=env.fromCollection(coo.toStream)
> > >> >     val distCOO2=env.fromCollection(coo.toStream)
> > >> >     val
> > >> > m1=DistributedRowMatrix.fromCOO(distCOO,numRows.toInt,numCols.toInt)
> > >> >     val
> > >> >
> m2=DistributedRowMatrix.fromCOO(distCOO2,numRows.toInt,numCols.toInt)
> > >> >
> > >> >
> > >> >
> > >>
> >
> m1.toBlockMatrix(1000,1000).multiply(m2.toBlockMatrix(1000,1000)).toRowMatrix.getRowData.first(5).print()
> > >> >
> > >> >
> > >> > "coo" is a  Iterator[(Int, Int, Double)].
> > >> >
> > >> > Here you can find the implementation for the distributed matrix I'm
> > >> working
> > >> > on, if you need to follow the stacktrace:
> > >> >
> > >> >
> > >>
> >
> https://github.com/radicalbit/flink/tree/Flink-1873-d/flink-libraries/flink-ml/src/main/scala/org/apache/flink/ml/math/distributed
> > >> >
> > >>
> >
>

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