Hi Till,
A few more data points:
In a rerun of the same versions with fresh deployment, I see
*log*.debug(*s"RegisterTaskManager:
$*msg*"*) in JobManager, however the
*AcknowledgeRegistration/AlreadyRegistered *messages are never sent, I have
taken tcpdump for the taskmanager which doesn't recover and compared it
with another taskmanager which recovers after restart (i.e. receives
*AcknowledgeRegistration *message).
Restarting the docker container of bad taskmanager doesn't work. The only
workaround right now is to delete the kubernetes pod holding the bad
taskmanager container. Does it have to do something with the akka address
the jobmanager stores for a taskmanager? The only variable I see between
restarting container vs pod is the change in the akka address.
Also, the infinite retries for registration start after the taskmanager
container restarts with Jobmanager actor system quarantined:
{"timeMillis":1539282282329,"thread":"flink-akka.actor.default-dispatcher-3","level":"ERROR","loggerName":"org.apache.flink.runtime.taskmanager.TaskManager","message":"The
actor system akka.tcp://flink@taskmgr-6b59f97748-fmgwn:8070 has quarantined
the remote actor system akka.tcp://flink@192.168.83.52:6123. Shutting the
actor system down to be able to reestablish a
connection!","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","threadId":49,"threadPriority":5}
A manual restart by docker restart or killing the JVM doesn't reproduce
this problem.
On Thu, Oct 11, 2018 at 11:15 AM Abdul Qadeer <quadeer....@gmail.com> wrote:
> Hi Till,
>
> I didn't try with newer versions as it is not possible to update the Flink
> version atm.
> If you could give any pointers for debugging that would be great.
>
> On Thu, Oct 11, 2018 at 2:44 AM Till Rohrmann <trohrm...@apache.org>
> wrote:
>
>> Hi Abdul,
>>
>> have you tried whether this problem also occurs with newer Flink versions
>> (1.5.4 or 1.6.1)?
>>
>> Cheers,
>> Till
>>
>> On Thu, Oct 11, 2018 at 9:24 AM Dawid Wysakowicz <dwysakow...@apache.org>
>> wrote:
>>
>>> Hi Abdul,
>>>
>>> I've added Till and Gary to cc, who might be able to help you.
>>>
>>> Best,
>>>
>>> Dawid
>>>
>>> On 11/10/18 03:05, Abdul Qadeer wrote:
>>>
>>> Hi,
>>>
>>>
>>> We are facing an issue in standalone HA mode in Flink 1.4.0 where
>>> Taskmanager restarts and is not able to register with the Jobmanager. It
>>> times out awaiting *AcknowledgeRegistration/AlreadyRegistered* message
>>> from Jobmanager Actor and keeps sending *RegisterTaskManager *message.
>>> The logs at Jobmanager don’t show anything about registration
>>> failure/request. It doesn’t print *log*.debug(*s"RegisterTaskManager: $*
>>> msg*"*) (from JobManager.scala) either. The network connection between
>>> taskmanager and jobmanager seems fine; tcpdump shows message sent to
>>> jobmanager and TCP ACK received from jobmanager. Note that the
>>> communication is happening between docker containers.
>>>
>>>
>>> Following are the logs from Taskmanager:
>>>
>>>
>>>
>>> {"timeMillis":1539189572438,"thread":"flink-akka.actor.default-dispatcher-2","level":"INFO","loggerName":"org.apache.flink.runtime.taskmanager.TaskManager","message":"Trying
>>> to register at JobManager akka.tcp://
>>> flink@192.168.83.51:6123/user/jobmanager (attempt 1400, timeout: 30000
>>> milliseconds)","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","threadId":48,"threadPriority":5}
>>>
>>> {"timeMillis":1539189580229,"thread":"Curator-Framework-0-SendThread(zookeeper.maglev-system.svc.cluster.local:2181)","level":"DEBUG","loggerName":"org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn","message":"Got
>>> ping response for sessionid: 0x10000260ea5002d after
>>> 0ms","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","threadId":101,"threadPriority":5}
>>>
>>> {"timeMillis":1539189600247,"thread":"Curator-Framework-0-SendThread(zookeeper.maglev-system.svc.cluster.local:2181)","level":"DEBUG","loggerName":"org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn","message":"Got
>>> ping response for sessionid: 0x10000260ea5002d after
>>> 0ms","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","threadId":101,"threadPriority":5}
>>>
>>> {"timeMillis":1539189602458,"thread":"flink-akka.actor.default-dispatcher-2","level":"INFO","loggerName":"org.apache.flink.runtime.taskmanager.TaskManager","message":"Trying
>>> to register at JobManager akka.tcp://
>>> flink@192.168.83.51:6123/user/jobmanager (attempt 1401, timeout: 30000
>>> milliseconds)","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","threadId":48,"threadPriority":5}
>>>
>>> {"timeMillis":1539189620251,"thread":"Curator-Framework-0-SendThread(zookeeper.maglev-system.svc.cluster.local:2181)","level":"DEBUG","loggerName":"org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn","message":"Got
>>> ping response for sessionid: 0x10000260ea5002d after
>>> 0ms","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","threadId":101,"threadPriority":5}
>>>
>>> {"timeMillis":1539189632478,"thread":"flink-akka.actor.default-dispatcher-2","level":"INFO","loggerName":"org.apache.flink.runtime.taskmanager.TaskManager","message":"Trying
>>> to register at JobManager akka.tcp://
>>> flink@192.168.83.51:6123/user/jobmanager (attempt 1402, timeout: 30000
>>> milliseconds)","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","threadId":48,"threadPriority":5}
>>>
>>>
>>>
