We have just started experiencing a different problem that could be
related, maybe it helps to diagnose the issue.

In the last 24h the jobmanager lost connection to Zookeeper a couple of
times. Each time, a new jobmanager (in a different node) was elected leader
correctly but the taskamangers kept trying to connect to the old
jobmanager. These are the ending log messages until the taskamanger shut
down itself.

12:06:41.747 [flink-akka.actor.default-dispatcher-5] WARN
akka.remote.transport.netty.NettyTransport New I/O boss #3 - Remote
connection to [null] failed with java.net.ConnectException: Connection
refused: (...)1/192.168.1.9:35605
12:06:41.748 [flink-akka.actor.default-dispatcher-2] INFO
org.apache.flink.runtime.taskexecutor.TaskExecutor  - Could not resolve
ResourceManager address akka.tcp://flink@(...)1:35605/user/resourcemanager,
retrying in 10000 ms: Could not connect to rpc endpoint under address
akka.tcp://flink@(...)1:35605/user/resourcemanager..
12:06:41.748 [flink-akka.actor.default-dispatcher-5] WARN
akka.remote.ReliableDeliverySupervisor
flink-akka.remote.default-remote-dispatcher-15 - Association with remote
system [akka.tcp://flink@(...)1:35605] has failed, address is now gated for
[50] ms. Reason: [Association failed with [akka.tcp://flink@(...)1:35605]]
Caused by: [Connection refused: (...)1/192.168.1.9:35605]
12:06:51.766 [flink-akka.actor.default-dispatcher-5] WARN
akka.remote.transport.netty.NettyTransport New I/O boss #3 - Remote
connection to [null] failed with java.net.ConnectException: Connection
refused: (...)1/192.168.1.9:35605
12:06:51.767 [flink-akka.actor.default-dispatcher-2] INFO
org.apache.flink.runtime.taskexecutor.TaskExecutor  - Could not resolve
ResourceManager address akka.tcp://flink@(...)1:35605/user/resourcemanager,
retrying in 10000 ms: Could not connect to rpc endpoint under address
akka.tcp://flink@(...)1:35605/user/resourcemanager..
12:06:51.767 [flink-akka.actor.default-dispatcher-5] WARN
akka.remote.ReliableDeliverySupervisor
flink-akka.remote.default-remote-dispatcher-7 - Association with remote
system [akka.tcp://flink@(...)1:35605] has failed, address is now gated for
[50] ms. Reason: [Association failed with [akka.tcp://flink@(...)1:35605]]
Caused by: [Connection refused: (...)1/192.168.1.9:35605]
12:07:01.123 [flink-akka.actor.default-dispatcher-5] ERROR
org.apache.flink.runtime.taskexecutor.TaskExecutor  - Fatal error occurred
in TaskExecutor akka.tcp://flink@(...)2:33455/user/taskmanager_0.
org.apache.flink.runtime.taskexecutor.exceptions.RegistrationTimeoutException:
Could not register at the ResourceManager within the specified maximum
registration duration 300000 ms. This indicates a problem with this
instance. Terminating now.
        at
org.apache.flink.runtime.taskexecutor.TaskExecutor.registrationTimeout(TaskExecutor.java:1018)
        at
org.apache.flink.runtime.taskexecutor.TaskExecutor.lambda$startRegistrationTimeout$3(TaskExecutor.java:1004)
        at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRunAsync(AkkaRpcActor.java:332)
        at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:158)
        at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.onReceive(AkkaRpcActor.java:142)
        at
akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:165)
        at akka.actor.Actor$class.aroundReceive(Actor.scala:502)
        at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:95)
        at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526)
        at akka.actor.ActorCell.invoke(ActorCell.scala:495)
        at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257)
        at akka.dispatch.Mailbox.run(Mailbox.scala:224)
        at akka.dispatch.Mailbox.exec(Mailbox.scala:234)
        at
scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
        at
scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
        at
scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
        at
scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
12:07:01.125 [flink-akka.actor.default-dispatcher-5] ERROR
org.apache.flink.runtime.taskexecutor.TaskManagerRunner  - Fatal error
occurred while executing the TaskManager. Shutting it down...
org.apache.flink.runtime.taskexecutor.exceptions.RegistrationTimeoutException:
Could not register at the ResourceManager within the specified maximum
registration duration 300000 ms. This indicates a problem with this
instance. Terminating now.
        at
org.apache.flink.runtime.taskexecutor.TaskExecutor.registrationTimeout(TaskExecutor.java:1018)
        at
org.apache.flink.runtime.taskexecutor.TaskExecutor.lambda$startRegistrationTimeout$3(TaskExecutor.java:1004)
        at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRunAsync(AkkaRpcActor.java:332)
        at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:158)
        at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.onReceive(AkkaRpcActor.java:142)
        at
akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:165)
        at akka.actor.Actor$class.aroundReceive(Actor.scala:502)
        at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:95)
        at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526)
        at akka.actor.ActorCell.invoke(ActorCell.scala:495)
        at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257)
        at akka.dispatch.Mailbox.run(Mailbox.scala:224)
        at akka.dispatch.Mailbox.exec(Mailbox.scala:234)
        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)
12:07:01.128 [flink-akka.actor.default-dispatcher-5] INFO
org.apache.flink.runtime.taskexecutor.TaskExecutor  - Stopping TaskExecutor
akka.tcp://flink@(...)2:33455/user/taskmanager_0.
12:07:01.128 [flink-akka.actor.default-dispatcher-5] INFO
o.a.f.r.leaderretrieval.ZooKeeperLeaderRetrievalService  - Stopping
ZooKeeperLeaderRetrievalService /leader/resource_manager_lock.
12:07:01.128 [flink-akka.actor.default-dispatcher-5] INFO
o.a.flink.runtime.state.TaskExecutorLocalStateStoresManager  - Shutting
down TaskExecutorLocalStateStoresManager.
12:07:01.130 [flink-akka.actor.default-dispatcher-5] INFO
org.apache.flink.runtime.io.disk.iomanager.IOManager  - I/O manager removed
spill file directory /home/tmp/flink-io-cf83b38e-53f1-4802-a097-e6db95b46084
12:07:01.130 [flink-akka.actor.default-dispatcher-5] INFO
org.apache.flink.runtime.io.network.NetworkEnvironment  - Shutting down the
network environment and its components.
12:07:01.131 [flink-akka.actor.default-dispatcher-5] INFO
org.apache.flink.runtime.io.network.netty.NettyClient  - Successful
shutdown (took 1 ms).
12:07:01.132 [flink-akka.actor.default-dispatcher-5] INFO
org.apache.flink.runtime.io.network.netty.NettyServer  - Successful
shutdown (took 1 ms).
12:07:01.141 [flink-akka.actor.default-dispatcher-5] INFO
org.apache.flink.runtime.taskexecutor.JobLeaderService  - Stop job leader
service.
12:07:01.142 [flink-akka.actor.default-dispatcher-5] INFO
org.apache.flink.runtime.taskexecutor.TaskExecutor  - Stopped TaskExecutor
akka.tcp://flink@(...)2:33455/user/taskmanager_0.
12:07:01.143 [flink-akka.actor.default-dispatcher-5] INFO
org.apache.flink.runtime.blob.PermanentBlobCache  - Shutting down BLOB cache
12:07:01.143 [flink-akka.actor.default-dispatcher-5] INFO
org.apache.flink.runtime.blob.TransientBlobCache  - Shutting down BLOB cache
12:07:01.148 [Curator-Framework-0] INFO
o.a.f.s.c.o.a.curator.framework.imps.CuratorFrameworkImpl  -
backgroundOperationsLoop exiting
12:07:01.173 [flink-akka.actor.default-dispatcher-5] INFO
o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Session:
0x3011955028f00f4 closed
12:07:01.173 [main-EventThread] INFO
o.a.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn  - EventThread
shut down for session: 0x3011955028f00f4
12:07:01.173 [flink-akka.actor.default-dispatcher-5] INFO
org.apache.flink.runtime.rpc.akka.AkkaRpcService  - Stopping Akka RPC
service.
12:07:01.178 [flink-akka.actor.default-dispatcher-3] INFO
akka.remote.RemoteActorRefProvider$RemotingTerminator
flink-akka.remote.default-remote-dispatcher-16 - Shutting down remote
daemon.
12:07:01.178 [flink-akka.actor.default-dispatcher-3] INFO
akka.remote.RemoteActorRefProvider$RemotingTerminator
flink-akka.remote.default-remote-dispatcher-16 - Remote daemon shut down;
proceeding with flushing remote transports.
12:07:01.190 [flink-akka.actor.default-dispatcher-5] INFO
akka.remote.RemoteActorRefProvider$RemotingTerminator
flink-akka.remote.default-remote-dispatcher-7 - Remoting shut down.

It seems like there are problems updating Zookeeper. I've have also noticed
these messages in Zookeeper log:

 WARN  [SyncThread:2:FileTxnLog@378] - fsync-ing the write ahead log in
SyncThread:2 took 1259ms which will adversely effect operation latency. See
the ZooKeeper troubleshooting guide

Maybe Flink hits some timeout?

Gerard

On Mon, Jul 23, 2018 at 11:57 AM Gerard Garcia <ger...@talaia.io> wrote:

> Hi Till,
>
> I can't post the full log (as there is internal info in them) but I've
> found this. Is that what you are looking for?
>
> 11:29:17.351 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
> --------------------------------------------------------------------------------
> 11:29:17.372 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
> Starting Command Line Client (Version: 1.5-SNAPSHOT, Rev:a4fc4c6,
> Date:05.06.2018 @ 10:22:30 CEST)
> 11:29:17.372 [main] INFO  org.apache.flink.client.cli.CliFrontend  -  OS
> current user: (...)
> 11:29:17.372 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
> Current Hadoop/Kerberos user: <no hadoop dependency found>
> 11:29:17.372 [main] INFO  org.apache.flink.client.cli.CliFrontend  -  JVM:
> Java HotSpot(TM) 64-Bit Server VM - Oracle Corporation - 1.8/25.131-b11
> 11:29:17.373 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
> Maximum heap size: 14254 MiBytes
> 11:29:17.373 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
> JAVA_HOME: (not set)
> 11:29:17.373 [main] INFO  org.apache.flink.client.cli.CliFrontend  -  No
> Hadoop Dependency available
> 11:29:17.373 [main] INFO  org.apache.flink.client.cli.CliFrontend  -  JVM
> Options:
> 11:29:17.373 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
>  -Dlog.file=/opt/flink/flink-1.5.0/log/flink-root-client-(...).log
> 11:29:17.373 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
>  -Dlog4j.configuration=file:/opt/flink/flink-1.5.0/conf/log4j-cli.properties
> 11:29:17.373 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
>  -Dlogback.configurationFile=file:/opt/flink/flink-1.5.0/conf/logback.xml
> 11:29:17.373 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
> Program Arguments:
> 11:29:17.374 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
>  cancel
> 11:29:17.374 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
>  e403893e5208ca47ace886a77e405291
> 11:29:17.374 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
> Classpath:
> /opt/flink/flink-1.5.0/lib/commons-httpclient-3.1.jar:/opt/flink/flink-1.5.0/lib/flink-metrics-statsd-1.5.0.jar:/opt/flink/flink-1.5.0/lib/flink-python_2.11-1.5.0.jar:/opt/flink/flink-1.5.0/lib/fluency-1.8.0.jar:/opt/flink/flink-1.5.0/lib/gcs-connector-latest-hadoop2.jar:/opt/flink/flink-1.5.0/lib/hadoop-openstack-2.7.1.jar:/opt/flink/flink-1.5.0/lib/jackson-annotations-2.8.0.jar:/opt/flink/flink-1.5.0/lib/jackson-core-2.8.10.jar:/opt/flink/flink-1.5.0/lib/jackson-databind-2.8.11.1.jar:/opt/flink/flink-1.5.0/lib/jackson-dataformat-msgpack-0.8.15.jar:/opt/flink/flink-1.5.0/lib/log4j-1.2.17.jar:/opt/flink/flink-1.5.0/lib/log4j-over-slf4j-1.7.25.jar:/opt/flink/flink-1.5.0/lib/logback-classic-1.2.3.jar:/opt/flink/flink-1.5.0/lib/logback-core-1.2.3.jar:/opt/flink/flink-1.5.0/lib/logback-more-appenders-1.4.2.jar:/opt/flink/flink-1.5.0/lib/msgpack-0.6.12.jar:/opt/flink/flink-1.5.0/lib/msgpack-core-0.8.15.jar:/opt/flink/flink-1.5.0/lib/phi-accural-failure-detector-0.0.4.jar:/opt/flink/flink-1.5.0/lib/slf4j-log4j12-1.7.7.jar:/opt/flink/flink-1.5.0/lib/flink-dist_2.11-1.5.0.jar:::
> 11:29:17.375 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
> --------------------------------------------------------------------------------
> 11:29:17.380 [main] WARN  org.apache.flink.client.cli.CliFrontend  - Could
> not load CLI class org.apache.flink.yarn.cli.FlinkYarnSessionCli.
> java.lang.NoClassDefFoundError: org/apache/hadoop/conf/Configuration
>         at java.lang.Class.forName0(Native Method)
>         at java.lang.Class.forName(Class.java:264)
>         at
> org.apache.flink.client.cli.CliFrontend.loadCustomCommandLine(CliFrontend.java:1204)
>         at
> org.apache.flink.client.cli.CliFrontend.loadCustomCommandLines(CliFrontend.java:1160)
>         at
> org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1086)
> Caused by: java.lang.ClassNotFoundException:
> org.apache.hadoop.conf.Configuration
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
>         ... 5 common frames omitted
> 11:29:17.385 [main] INFO  org.apache.flink.core.fs.FileSystem  - Hadoop is
> not in the classpath/dependencies. The extended set of supported File
> Systems via Hadoop is not available.
> 11:29:17.479 [main] INFO
> o.apache.flink.runtime.security.modules.HadoopModuleFactory  - Cannot
> create Hadoop Security Module because Hadoop cannot be found in the
> Classpath.
> 11:29:17.489 [main] INFO  org.apache.flink.runtime.security.SecurityUtils
> - Cannot install HadoopSecurityContext because Hadoop cannot be found in
> the Classpath.
> 11:29:17.518 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
> Running 'cancel' command.
> 11:29:17.523 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
> Cancelling job e403893e5208ca47ace886a77e405291.
> 11:29:17.537 [main] INFO
> org.apache.flink.runtime.blob.FileSystemBlobStore  - Creating highly
> available BLOB storage directory at file:///home/nas/flink/ha//default/blob
> 11:29:17.538 [main] INFO  org.apache.flink.runtime.util.ZooKeeperUtils  -
> Enforcing default ACL for ZK connections
> 11:29:17.539 [main] INFO  org.apache.flink.runtime.util.ZooKeeperUtils  -
> Using '/flink/default' as Zookeeper namespace.
> 11:29:17.574 [main] INFO
> o.a.f.s.c.o.a.curator.framework.imps.CuratorFrameworkImpl  - Starting
> 11:29:17.577 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:zookeeper.version=3.4.10-39d3a4f269333c922ed3db283be479f9deacaa0f,
> built on 03/23/2017 10:13 GMT
> 11:29:17.577 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:host.name=(...)
> 11:29:17.578 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:java.version=1.8.0_131
> 11:29:17.578 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:java.vendor=Oracle Corporation
> 11:29:17.579 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:java.home=/opt/jdk/jdk1.8.0_131/jre
> 11:29:17.580 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:java.class.path=/opt/flink/flink-1.5.0/lib/commons-httpclient-3.1.jar:/opt/flink/flink-1.5.0/lib/flink-metrics-statsd-1.5.0.jar:/opt/flink/flink-1.5.0/lib/flink-python_2.11-1.5.0.jar:/opt/flink/flink-1.5.0/lib/fluency-1.8.0.jar:/opt/flink/flink-1.5.0/lib/gcs-connector-latest-hadoop2.jar:/opt/flink/flink-1.5.0/lib/hadoop-openstack-2.7.1.jar:/opt/flink/flink-1.5.0/lib/jackson-annotations-2.8.0.jar:/opt/flink/flink-1.5.0/lib/jackson-core-2.8.10.jar:/opt/flink/flink-1.5.0/lib/jackson-databind-2.8.11.1.jar:/opt/flink/flink-1.5.0/lib/jackson-dataformat-msgpack-0.8.15.jar:/opt/flink/flink-1.5.0/lib/log4j-1.2.17.jar:/opt/flink/flink-1.5.0/lib/log4j-over-slf4j-1.7.25.jar:/opt/flink/flink-1.5.0/lib/logback-classic-1.2.3.jar:/opt/flink/flink-1.5.0/lib/logback-core-1.2.3.jar:/opt/flink/flink-1.5.0/lib/logback-more-appenders-1.4.2.jar:/opt/flink/flink-1.5.0/lib/msgpack-0.6.12.jar:/opt/flink/flink-1.5.0/lib/msgpack-core-0.8.15.jar:/opt/flink/flink-1.5.0/lib/phi-accural-failure-detector-0.0.4.jar:/opt/flink/flink-1.5.0/lib/slf4j-log4j12-1.7.7.jar:/opt/flink/flink-1.5.0/lib/flink-dist_2.11-1.5.0.jar:::
> 11:29:17.580 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
> 11:29:17.580 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:java.io.tmpdir=/tmp
> 11:29:17.580 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:java.compiler=<NA>
> 11:29:17.580 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:os.name=Linux
> 11:29:17.580 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:os.arch=amd64
> 11:29:17.580 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:os.version=4.9.87-xxxx-std-ipv6-64
> 11:29:17.581 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:user.name=(...)
> 11:29:17.581 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:user.home=(...)
> 11:29:17.581 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
> environment:user.dir=/opt/flink/flink-1.5.0/bin
> 11:29:17.581 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Initiating
> client connection, connectString=10.1.1.5:2181,10.1.1.6:2181,10.1.1.7:2181
> sessionTimeout=60000
> watcher=org.apache.flink.shaded.curator.org.apache.curator.ConnectionState@4a003cbe
> 11:29:17.589 [main-SendThread(10.1.1.5:2181)] WARN
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn  - SASL
> configuration failed: javax.security.auth.login.LoginException: No JAAS
> configuration section named 'Client' was found in specified JAAS
> configuration file: '/tmp/jaas-3807415919448894740.conf'. Will continue
> connection to Zookeeper server without SASL authentication, if Zookeeper
> server allows it.
> 11:29:17.590 [main-SendThread(10.1.1.5:2181)] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn  - Opening
> socket connection to server 10.1.1.5/10.1.1.5:2181
> 11:29:17.590 [main-EventThread] ERROR
> o.a.flink.shaded.curator.org.apache.curator.ConnectionState  -
> Authentication failed
> 11:29:17.603 [main-SendThread(10.1.1.5:2181)] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn  - Socket
> connection established to 10.1.1.5/10.1.1.5:2181, initiating session
> 11:29:17.625 [main-SendThread(10.1.1.5:2181)] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn  - Session
> establishment complete on server 10.1.1.5/10.1.1.5:2181, sessionid =
> 0x100571bda1903c3, negotiated timeout = 40000
> 11:29:17.626 [main-EventThread] INFO
> o.a.f.s.c.o.a.curator.framework.state.ConnectionStateManager  - State
> change: CONNECTED
> 11:29:17.764 [main] INFO  org.apache.flink.runtime.rest.RestClient  - Rest
> client endpoint started.
> 11:29:17.766 [main] INFO
> o.a.f.r.leaderretrieval.ZooKeeperLeaderRetrievalService  - Starting
> ZooKeeperLeaderRetrievalService /leader/rest_server_lock.
> 11:29:17.812 [main] INFO
> o.a.f.r.leaderretrieval.ZooKeeperLeaderRetrievalService  - Starting
> ZooKeeperLeaderRetrievalService /leader/dispatcher_lock.
> 11:29:18.007 [main] INFO  org.apache.flink.runtime.rest.RestClient  -
> Shutting down rest endpoint.
> 11:29:18.008 [main] INFO  org.apache.flink.runtime.rest.RestClient  - Rest
> endpoint shutdown complete.
> 11:29:18.008 [main] INFO
> o.a.f.r.leaderretrieval.ZooKeeperLeaderRetrievalService  - Stopping
> ZooKeeperLeaderRetrievalService /leader/rest_server_lock.
> 11:29:18.009 [main] INFO
> o.a.f.r.leaderretrieval.ZooKeeperLeaderRetrievalService  - Stopping
> ZooKeeperLeaderRetrievalService /leader/dispatcher_lock.
> 11:29:18.010 [Curator-Framework-0] INFO
> o.a.f.s.c.o.a.curator.framework.imps.CuratorFrameworkImpl  -
> backgroundOperationsLoop exiting
> 11:29:18.030 [main] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Session:
> 0x100571bda1903c3 closed
> 11:29:18.030 [main-EventThread] INFO
> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn  - EventThread
> shut down for session: 0x100571bda1903c3
> 11:29:18.030 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
> Cancelled job e403893e5208ca47ace886a77e405291.
>
> Gerard
>
> On Fri, Jul 20, 2018 at 5:14 AM vino yang <yanghua1...@gmail.com> wrote:
>
>> Hi Till,
>>
>> You are right, we also saw the problem you said. Curator removes the
>> specific job graph path asynchronously. But it's the only gist when
>> recovering, right? Is there any plan to enhance this point?
>>
>> Thanks, vino.
>>
>> 2018-07-19 21:58 GMT+08:00 Till Rohrmann <trohrm...@apache.org>:
>>
>>> Hi Gerard,
>>>
>>> the logging statement `Removed job graph ... from ZooKeeper` is actually
>>> not 100% accurate. The actual deletion is executed as an asynchronous
>>> background task and the log statement is not printed in the callback (which
>>> it should). Therefore, the deletion could still have failed. In order to
>>> see this, the full jobmanager/cluster entry point logs would be
>>> tremendously helpful.
>>>
>>> Cheers,
>>> Till
>>>
>>> On Thu, Jul 19, 2018 at 1:33 PM Gerard Garcia <ger...@talaia.io> wrote:
>>>
>>>> Thanks Andrey,
>>>>
>>>> That is the log from the jobmanager just after it has finished
>>>> cancelling the task:
>>>>
>>>> 11:29:18.716 [flink-akka.actor.default-dispatcher-15695] INFO
>>>> org.apache.flink.runtime.checkpoint.CheckpointCoordinator  - Stopping
>>>> checkpoint coordinator for job e403893e5208ca47ace886a77e405291.
>>>> 11:29:18.716 [flink-akka.actor.default-dispatcher-15695] INFO
>>>> o.a.f.runtime.checkpoint.ZooKeeperCompletedCheckpointStore  - Shutting down
>>>> 11:29:18.738 [flink-akka.actor.default-dispatcher-15695] INFO
>>>> o.a.f.runtime.checkpoint.ZooKeeperCompletedCheckpointStore  - Removing
>>>> /flink-eur/default/checkpoints/e403893e5208ca47ace886a77e405291 from
>>>> ZooKeeper
>>>> 11:29:18.780 [flink-akka.actor.default-dispatcher-15695] INFO
>>>> o.a.flink.runtime.checkpoint.ZooKeeperCheckpointIDCounter  - Shutting down.
>>>> 11:29:18.780 [flink-akka.actor.default-dispatcher-15695] INFO
>>>> o.a.flink.runtime.checkpoint.ZooKeeperCheckpointIDCounter  - Removing
>>>> /checkpoint-counter/e403893e5208ca47ace886a77e405291 from ZooKeeper
>>>> 11:29:18.827 [flink-akka.actor.default-dispatcher-15695] INFO
>>>> org.apache.flink.runtime.dispatcher.StandaloneDispatcher  - Job
>>>> e403893e5208ca47ace886a77e405291 reached globally terminal state CANCELED.
>>>> 11:29:18.846 [flink-akka.actor.default-dispatcher-15675] INFO
>>>> org.apache.flink.runtime.jobmaster.JobMaster  - Stopping the JobMaster for
>>>> job (...)(e403893e5208ca47ace886a77e405291).
>>>> 11:29:18.848 [flink-akka.actor.default-dispatcher-15675] INFO
>>>> o.a.f.r.leaderretrieval.ZooKeeperLeaderRetrievalService  - Stopping
>>>> ZooKeeperLeaderRetrievalService /leader/resource_manager_lock.
>>>> 11:29:18.864 [flink-akka.actor.default-dispatcher-15675] INFO
>>>> org.apache.flink.runtime.jobmaster.JobMaster  - Close ResourceManager
>>>> connection d5fbc30a895066054e29fb2fd60fb0f1: JobManager is shutting down..
>>>> 11:29:18.864 [flink-akka.actor.default-dispatcher-15695] INFO
>>>> org.apache.flink.runtime.jobmaster.slotpool.SlotPool  - Suspending 
>>>> SlotPool.
>>>> 11:29:18.864 [flink-akka.actor.default-dispatcher-15695] INFO
>>>> org.apache.flink.runtime.jobmaster.slotpool.SlotPool  - Stopping SlotPool.
>>>> 11:29:18.864 [flink-akka.actor.default-dispatcher-15688] INFO
>>>> o.a.flink.runtime.resourcemanager.StandaloneResourceManager  - Disconnect
>>>> job manager 
>>>> 9cf221e2340597629fb932c03aa14...@akka.tcp://flink@(...):33827/user/jobmanager_9
>>>> for job e403893e5208ca47ace886a77e405291 from the resource manager.
>>>> 11:29:18.864 [flink-akka.actor.default-dispatcher-15675] INFO
>>>> o.a.f.runtime.leaderelection.ZooKeeperLeaderElectionService  - Stopping
>>>> ZooKeeperLeaderElectionService
>>>> ZooKeeperLeaderElectionService{leaderPath='/leader/e403893e5208ca47ace886a77e405291/job_manager_lock'}.
>>>> 11:29:18.980 [flink-akka.actor.default-dispatcher-15695] INFO
>>>> org.apache.flink.runtime.checkpoint.CheckpointCoordinator  - Completed
>>>> checkpoint 31154 for job 5d8c376b10d358b9c9470b3e70113626 (132520 bytes in
>>>> 411 ms).
>>>> 11:29:19.025 [flink-akka.actor.default-dispatcher-15683] INFO
>>>> o.a.flink.runtime.jobmanager.ZooKeeperSubmittedJobGraphStore  - Removed job
>>>> graph e403893e5208ca47ace886a77e405291 from ZooKeeper.
>>>>
>>>>
>>>> At the end it says removed job graph e403893e5208ca47ace886a77e405291
>>>> from ZooKeeper but I still can see it at /flink/default/jobgraphs:
>>>>
>>>> [zk: localhost:2181(CONNECTED) 14] ls
>>>> /flink/default/jobgraphs/e403893e5208ca47ace886a77e405291
>>>> [3fe9c3c8-5bec-404e-a720-75f9b188124f,
>>>> 36208299-0f6d-462c-bae4-2e3d53f50e8c]
>>>>
>>>> Gerard
>>>>
>>>> On Wed, Jul 18, 2018 at 4:24 PM Andrey Zagrebin <
>>>> and...@data-artisans.com> wrote:
>>>>
>>>>> Hi Gerard,
>>>>>
>>>>> There is an issue recently fixed for 1.5.2, 1.6.0:
>>>>> https://issues.apache.org/jira/browse/FLINK-9575
>>>>> It might have caused your problem.
>>>>>
>>>>> Can you please provide log from JobManager/Entry point for further
>>>>> investigation?
>>>>>
>>>>> Cheers,
>>>>> Andrey
>>>>>
>>>>> On 18 Jul 2018, at 10:16, Gerard Garcia <ger...@talaia.io> wrote:
>>>>>
>>>>> Hi vino,
>>>>>
>>>>> Seems that jobs id stay in /jobgraphs when we cancel them manually.
>>>>> For example, after cancelling the job with id
>>>>> 75e16686cb4fe0d33ead8e29af131d09 the entry is still in zookeeper's path
>>>>> /flink/default/jobgraphs, but the job disappeared from
>>>>> /home/nas/flink/ha/default/blob/.
>>>>>
>>>>> That is the client log:
>>>>>
>>>>> 09:20:58.492 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
>>>>> Cancelling job 75e16686cb4fe0d33ead8e29af131d09.
>>>>> 09:20:58.503 [main] INFO
>>>>> org.apache.flink.runtime.blob.FileSystemBlobStore  - Creating highly
>>>>> available BLOB storage directory at
>>>>> file:///home/nas/flink/ha//default/blob
>>>>> 09:20:58.505 [main] INFO
>>>>> org.apache.flink.runtime.util.ZooKeeperUtils  - Enforcing default ACL for
>>>>> ZK connections
>>>>> 09:20:58.505 [main] INFO
>>>>> org.apache.flink.runtime.util.ZooKeeperUtils  - Using '/flink-eur/default'
>>>>> as Zookeeper namespace.
>>>>> 09:20:58.539 [main] INFO
>>>>> o.a.f.s.c.o.a.curator.framework.imps.CuratorFrameworkImpl  - Starting
>>>>> 09:20:58.543 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:zookeeper.version=
>>>>> 3.4.10-39d3a4f269333c922ed3db283be479f9deacaa0f, built on 03/23/2017
>>>>> 10:13 GMT
>>>>> 09:20:58.543 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:host.name=flink-eur-production1
>>>>> 09:20:58.543 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:java.version=1.8.0_131
>>>>> 09:20:58.544 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:java.vendor=Oracle Corporation
>>>>> 09:20:58.546 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:java.home=/opt/jdk/jdk1.8.0_131/jre
>>>>> 09:20:58.546 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:java.class.path=/opt/flink/flink-1.5.0/lib/commons-httpclient-3.1.jar:/opt/flink/flink-1.5.0/lib/flink-metrics-statsd-1.5.0.jar:/opt/flink/flink-1.5.0/lib/flink-python_2.11-1.5.0.jar:/opt/flink/flink-1.5.0/lib/fluency-1.8.0.jar:/opt/flink/flink-1.5.0/lib/gcs-connector-latest-hadoop2.jar:/opt/flink/flink-1.5.0/lib/hadoop-openstack-2.7.1.jar:/opt/flink/flink-1.5.0/lib/jackson-annotations-2.8.0.jar:/opt/flink/flink-1.5.0/lib/jackson-core-2.8.10.jar:/opt/flink/flink-1.5.0/lib/jackson-databind-2.8.11.1.jar:/opt/flink/flink-1.5.0/lib/jackson-dataformat-msgpack-0.8.15.jar:/opt/flink/flink-1.5.0/lib/log4j-1.2.17.jar:/opt/flink/flink-1.5.0/lib/log4j-over-slf4j-1.7.25.jar:/opt/flink/flink-1.5.0/lib/logback-classic-1.2.3.jar:/opt/flink/flink-1.5.0/lib/logback-core-1.2.3.jar:/opt/flink/flink-1.5.0/lib/logback-more-appenders-1.4.2.jar:/opt/flink/flink-1.5.0/lib/msgpack-0.6.12.jar:/opt/flink/flink-1.5.0/lib/msgpack-core-0.8.15.jar:/opt/flink/flink-1.5.0/lib/phi-accural-failure-detector-0.0.4.jar:/opt/flink/flink-1.5.0/lib/slf4j-log4j12-1.7.7.jar:/opt/flink/flink-1.5.0/lib/flink-dist_2.11-1.5.0.jar:::
>>>>> 09:20:58.546 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
>>>>> 09:20:58.546 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:java.io.tmpdir=/tmp
>>>>> 09:20:58.546 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:java.compiler=<NA>
>>>>> 09:20:58.547 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:os.name=Linux
>>>>> 09:20:58.547 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:os.arch=amd64
>>>>> 09:20:58.547 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:os.version=4.9.87-xxxx-std-ipv6-64
>>>>> 09:20:58.547 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:user.name=root
>>>>> 09:20:58.547 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:user.home=/root
>>>>> 09:20:58.547 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Client
>>>>> environment:user.dir=/opt/flink/flink-1.5.0/bin
>>>>> 09:20:58.548 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Initiating
>>>>> client connection, connectString=10.1.1.5:2181,10.1.1.6:2181,
>>>>> 10.1.1.7:2181 sessionTimeout=60000
>>>>> watcher=org.apache.flink.shaded.curator.org.apache.curator.ConnectionState@4a003cbe
>>>>> 09:20:58.555 [main-SendThread(10.1.1.5:2181)] WARN
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn  - SASL
>>>>> configuration failed: javax.security.auth.login.LoginException: No JAAS
>>>>> configuration section named 'Client' was found in specified JAAS
>>>>> configuration file: '/tmp/jaas-9143038863636945274.conf'. Will continue
>>>>> connection to Zookeeper server without SASL authentication, if Zookeeper
>>>>> server allows it.
>>>>> 09:20:58.556 [main-SendThread(10.1.1.5:2181)] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn  - Opening
>>>>> socket connection to server 10.1.1.5/10.1.1.5:2181
>>>>> 09:20:58.556 [main-EventThread] ERROR 
>>>>> o.a.flink.shaded.curator.org.apache.curator.ConnectionState
>>>>> - Authentication failed
>>>>> 09:20:58.569 [main-SendThread(10.1.1.5:2181)] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn  - Socket
>>>>> connection established to 10.1.1.5/10.1.1.5:2181, initiating session
>>>>> 09:20:58.592 [main-SendThread(10.1.1.5:2181)] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn  - Session
>>>>> establishment complete on server 10.1.1.5/10.1.1.5:2181, sessionid =
>>>>> 0x100571bda1903b7, negotiated timeout = 40000
>>>>> 09:20:58.593 [main-EventThread] INFO
>>>>> o.a.f.s.c.o.a.curator.framework.state.ConnectionStateManager  - State
>>>>> change: CONNECTED
>>>>> 09:20:58.711 [main] INFO  org.apache.flink.runtime.rest.RestClient  -
>>>>> Rest client endpoint started.
>>>>> 09:20:58.713 [main] INFO
>>>>> o.a.f.r.leaderretrieval.ZooKeeperLeaderRetrievalService  - Starting
>>>>> ZooKeeperLeaderRetrievalService /leader/rest_server_lock.
>>>>> 09:20:58.755 [main] INFO
>>>>> o.a.f.r.leaderretrieval.ZooKeeperLeaderRetrievalService  - Starting
>>>>> ZooKeeperLeaderRetrievalService /leader/dispatcher_lock.
>>>>> 09:20:58.946 [main] INFO  org.apache.flink.runtime.rest.RestClient  -
>>>>> Shutting down rest endpoint.
>>>>> 09:20:58.946 [main] INFO  org.apache.flink.runtime.rest.RestClient  -
>>>>> Rest endpoint shutdown complete.
>>>>> 09:20:58.947 [main] INFO
>>>>> o.a.f.r.leaderretrieval.ZooKeeperLeaderRetrievalService  - Stopping
>>>>> ZooKeeperLeaderRetrievalService /leader/rest_server_lock.
>>>>> 09:20:58.948 [main] INFO
>>>>> o.a.f.r.leaderretrieval.ZooKeeperLeaderRetrievalService  - Stopping
>>>>> ZooKeeperLeaderRetrievalService /leader/dispatcher_lock.
>>>>> 09:20:58.949 [Curator-Framework-0] INFO
>>>>> o.a.f.s.c.o.a.curator.framework.imps.CuratorFrameworkImpl  -
>>>>> backgroundOperationsLoop exiting
>>>>> 09:20:58.968 [main] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper  - Session:
>>>>> 0x100571bda1903b7 closed
>>>>> 09:20:58.968 [main] INFO  org.apache.flink.client.cli.CliFrontend  -
>>>>> Cancelled job 75e16686cb4fe0d33ead8e29af131d09.
>>>>> 09:20:58.969 [main-EventThread] INFO
>>>>> o.a.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn  - EventThread
>>>>> shut down for session: 0x100571bda1903b7
>>>>>
>>>>> I'm assuming that in /jobgraphs there should only be the job ids that
>>>>> are currently running (at least it seemed that when the jobmanager
>>>>> restarted it tried to restart the jobs ids stored there). Is that correct?
>>>>>
>>>>> Gerard
>>>>>
>>>>> On Wed, Jul 18, 2018 at 9:17 AM vino yang <yanghua1...@gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hi Gerard,
>>>>>>
>>>>>> From you provide information, you mean the path in Zookeeper
>>>>>> "/jobgraphs" exists more jobs than you submitted?
>>>>>> And can not be restarted because blob files can not be find?
>>>>>>
>>>>>> Can you provide more details, about the stack trace, log and which
>>>>>> version of Flink? Normally, the jobgraph can not be added to Zookeeper
>>>>>> except submit job manually.
>>>>>>
>>>>>> Thanks, vino.
>>>>>>
>>>>>> 2018-07-16 21:19 GMT+08:00 gerardg <ger...@talaia.io>:
>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> Our deployment consists of a standalone HA cluster of 8 machines
>>>>>>> with an
>>>>>>> external Zookeeper cluster. We have observed several times that when
>>>>>>> a
>>>>>>> jobmanager fails and a new one is elected, the new one tries to
>>>>>>> restart
>>>>>>> more jobs than the ones that were running and since it can't find
>>>>>>> some
>>>>>>> files, it fails and gets stuck in a restart loop. That is the error
>>>>>>> that we
>>>>>>> see in the logs:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> These are the contents of /home/nas/flink/ha/default/blob/:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> We've checked zookeeper and there are actually a lot of jobgraphs in
>>>>>>> /flink/default/jobgraphs
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> There were only three jobs running so neither zookeeper nor the
>>>>>>> flink 'ha'
>>>>>>> folder seems to have the correct number of jobgraphs stored.
>>>>>>>
>>>>>>> The only way we have to solve this is to remove everything at path
>>>>>>> /flink in
>>>>>>> zookeeper and the 'ha' flink folder and restart the jobs manually.
>>>>>>>
>>>>>>> I'll try to monitor if some action (e.g. we have been canceling and
>>>>>>> restoring jobs from savepoints quite often lately) leaves an entry in
>>>>>>> zookeepers path /flink/default/jobgraphs of a job that is not
>>>>>>> running but
>>>>>>> maybe someone can't point us to some configuration problem that
>>>>>>> could cause
>>>>>>> this behavior.
>>>>>>>
>>>>>>> Thanks,
>>>>>>>
>>>>>>> Gerard
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Sent from:
>>>>>>> http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>

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