Hi Lu, I assume you are using ZooKeeper as the HA service?
A common cause of unexpected leadership lost is the instability of HA service. E.g., if ZK does not receive heartbeat from Flink RM for a certain period of time, it will revoke the leadership and notify other components. You can look into the ZooKeeper logs checking why RM's leadership is revoked. Thank you~ Xintong Song On Thu, Dec 17, 2020 at 8:42 AM Lu Niu <qqib...@gmail.com> wrote: > Hi, Flink users > > Recently we migrated to flink 1.11 and see exceptions like: > ``` > 2020-12-15 12:41:01,199 INFO > org.apache.flink.runtime.executiongraph.ExecutionGraph [] - Source: > USER_MATERIALIZED_EVENT_SIGNAL-user_context-event -> > USER_MATERIALIZED_EVENT_SIGNAL-user_context-event-as_nrtgtuple (21/60) > (711d1d319691a4b80e30fe6ab7dfab5b) switched from RUNNING to FAILED on > org.apache.flink.runtime.jobmaster.slotpool.SingleLogicalSlot@50abf386. > java.lang.Exception: Job leader for job id > 47b1531f79ffe3b86bc5910f6071e40c lost leadership. > at > org.apache.flink.runtime.taskexecutor.TaskExecutor$JobLeaderListenerImpl.lambda$null$2(TaskExecutor.java:1852) > ~[nrtg-1.11_deploy.jar:?] > at java.util.Optional.ifPresent(Optional.java:159) ~[?:1.8.0_212-ga] > at > org.apache.flink.runtime.taskexecutor.TaskExecutor$JobLeaderListenerImpl.lambda$jobManagerLostLeadership$3(TaskExecutor.java:1851) > ~[nrtg-1.11_deploy.jar:?] > at > org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRunAsync(AkkaRpcActor.java:402) > ~[nrtg-1.11_deploy.jar:?] > at > org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:195) > ~[nrtg-1.11_deploy.jar:?] > at > org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:152) > ~[nrtg-1.11_deploy.jar:?] > at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:24) > [nrtg-1.11_deploy.jar:?] > at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:20) > [nrtg-1.11_deploy.jar:?] > at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:123) > [nrtg-1.11_deploy.jar:?] > at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:20) > [nrtg-1.11_deploy.jar:?] > at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:170) > [nrtg-1.11_deploy.jar:?] > at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171) > [nrtg-1.11_deploy.jar:?] > at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171) > [nrtg-1.11_deploy.jar:?] > at akka.actor.Actor$class.aroundReceive(Actor.scala:539) > [nrtg-1.11_deploy.jar:?] > at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:227) > [nrtg-1.11_deploy.jar:?] > at akka.actor.ActorCell.receiveMessage(ActorCell.scala:612) > [nrtg-1.11_deploy.jar:?] > at akka.actor.ActorCell.invoke(ActorCell.scala:581) > [nrtg-1.11_deploy.jar:?] > at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:268) > [nrtg-1.11_deploy.jar:?] > at akka.dispatch.Mailbox.run(Mailbox.scala:229) [nrtg-1.11_deploy.jar:?] > ``` > > ``` > 2020-12-15 01:01:39,531 INFO > org.apache.flink.runtime.executiongraph.ExecutionGraph [] - > USER_MATERIALIZED_EVENT_SIGNAL.user_context.SINK-stream_joiner -> > USER_MATERIALIZED_EVENT_SIGNAL-user_context-SINK-SINKS.realpin (260/360) > (0c1f4495088ec9452c597f46a88a2c8e) switched from RUNNING to FAILED on > org.apache.flink.runtime.jobmaster.slotpool.SingleLogicalSlot@2362b2fd. > org.apache.flink.util.FlinkException: ResourceManager leader changed to > new address null > at > org.apache.flink.runtime.taskexecutor.TaskExecutor.notifyOfNewResourceManagerLeader(TaskExecutor.java:1093) > ~[nrtg-1.11_deploy.jar:?] > at > org.apache.flink.runtime.taskexecutor.TaskExecutor.access$800(TaskExecutor.java:173) > ~[nrtg-1.11_deploy.jar:?] > at > org.apache.flink.runtime.taskexecutor.TaskExecutor$ResourceManagerLeaderListener.lambda$notifyLeaderAddress$0(TaskExecutor.java:1816) > ~[nrtg-1.11_deploy.jar:?] > at > org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRunAsync(AkkaRpcActor.java:402) > ~[nrtg-1.11_deploy.jar:?] > at > org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:195) > ~[nrtg-1.11_deploy.jar:?] > at > org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:152) > ~[nrtg-1.11_deploy.jar:?] > at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:24) > [nrtg-1.11_deploy.jar:?] > at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:20) > [nrtg-1.11_deploy.jar:?] > at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:123) > [nrtg-1.11_deploy.jar:?] > at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:20) > [nrtg-1.11_deploy.jar:?] > at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:170) > [nrtg-1.11_deploy.jar:?] > at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171) > [nrtg-1.11_deploy.jar:?] > at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171) > [nrtg-1.11_deploy.jar:?] > at akka.actor.Actor$class.aroundReceive(Actor.scala:539) > [nrtg-1.11_deploy.jar:?] > at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:227) > [nrtg-1.11_deploy.jar:?] > at akka.actor.ActorCell.receiveMessage(ActorCell.scala:612) > [nrtg-1.11_deploy.jar:?] > at akka.actor.ActorCell.invoke(ActorCell.scala:581) > [nrtg-1.11_deploy.jar:?] > at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:268) > [nrtg-1.11_deploy.jar:?] > at akka.dispatch.Mailbox.run(Mailbox.scala:229) [nrtg-1.11_deploy.jar:?] > ``` > > This happens a few times per week. It seems like one Task Manager wrongly > thought JobMananger is lost and triggers a full restart of the whole job. > Does anyone know how to resolve such errors? Thanks! > > Best > Lu >
