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Re: Cannot submit jobs on a HA Standalone JobManager


Hey Gary (again),

Yup, that worked. Now I can launch apps again.

... but that's not something actually good.

I mean, I have my own test environment, which doesn't need HA -- after all, I don't need to worry about this, this is a framework job, not my pipeline job. Which means now I'll need to either keep two different configuration files and keep switching between them -- because the `flink` command doesn't not accept a configuration file (or, at least, it's not listed on `--help`) or I'll have to first copy to the prod/staging machines and then run there -- which seems a waste, since it seems using `flink run -m` already adds the file in the blob server and then runs and, doing the copy-to-machine step means there are two copies going on.

I mean, if I say "hey flink, run this job _there_", flink should be smart enough to read how "there" is running things and adjust itself. The environment which started the run may not follow the same rules as the target run machine.

... and, in the end, it seems this is mostly useless discussion, as JobManager is changing completely on 1.5 -- but I kinda worry if I will have the same issue with the new ResourceManager...

On Thu, May 3, 2018 at 11:00 AM, Julio Biason <julio.biason@xxxxxxxxx> wrote:
Hey Gary,

Yes, I was still running with the `-m` flag on my dev machine -- partially configured like prod, but without the HA stuff. I never thought it could be a problem, since even the web interface can redirect from the secondary back to primary.

Currently I'm still running 1.4.0 (and I plan to upgrade to 1.4.2 as soon as I can fix this).

I'll try again with the HA/ZooKeeper properly set up on my machine and, if it still balks, I'll send the (updated) logs.

On Thu, May 3, 2018 at 9:36 AM, Gary Yao <gary@xxxxxxxxxxxxxxxxx> wrote:
Hi Julio,

Are you using the -m flag of "bin/flink run" by any chance? In HA mode, you
cannot manually specify the JobManager address. The client determines the leader
through ZooKeeper. If you did not configure the ZooKeeper quorum in the
flink-conf.yaml on the machine from which you are submitting, this might explain
the error message.

> But that didn't solve my problem. So far, the `flink run` still fails with the same message (I'm adding the full stacktrace of the failure in the end, just in case), but now I'm also seeing this message in the JobManager logs:
Unfortunately, the error message in your previous email is different. If the
above does not solve your problem, can you attach the logs of the client and
JobManager?

Lastly, what Flink version are you running?

Best,
Gary

On Wed, May 2, 2018 at 6:51 PM, Julio Biason <julio.biason@xxxxxxxxx> wrote:
Hey guys and gals,

So, after a bit more digging, I found out that once HA is enabled, `jobmanager.rpc.port` is also ignore (along with `jobmanager.rpc.address`, but I was expecting this). Because I set the `high-availability.jobmanager.port` to `50010-50015`, my RPC port also changed (the docs made me think this would only affect the HA communication, not ALL communications). This can be checked on the Dashboard, under the JobManager configuration option.

But that didn't solve my problem. So far, the `flink run` still fails with the same message (I'm adding the full stacktrace of the failure in the end, just in case), but now I'm also seeing this message in the JobManager logs:

2018-05-02 16:44:32,373 WARN  org.apache.flink.runtime.jobmanager.JobManager                - Discard message LeaderSessionMessage(00000000-0000-0000-0000-000000000000,SubmitJob(JobGraph(jobId: 42a25752ab085117a21c02d3db54777e),DETACHED)) because the expected leader session ID c01eba4f-44e2-4c65-85d5-a9a05ceba28e did not equal the received leader session ID 00000000-0000-0000-0000-000000000000.                                                                             

So, I'm still lost on where to go forward.


Failure when using `flink run`:

org.apache.flink.client.program.ProgramInvocationException: The program execution failed: JobManager did not respond within 60000 ms                                                                                                        
        at org.apache.flink.client.program.ClusterClient.runDetached(ClusterClient.java:524)
        at org.apache.flink.client.program.StandaloneClusterClient.submitJob(StandaloneClusterClient.java:103)
        at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:456)
        at org.apache.flink.client.program.DetachedEnvironment.finalizeExecute(DetachedEnvironment.java:77)
        at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:402)
        at org.apache.flink.client.CliFrontend.executeProgram(CliFrontend.java:802)
        at org.apache.flink.client.CliFrontend.run(CliFrontend.java:282)
        at org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:1054)
        at org.apache.flink.client.CliFrontend$1.call(CliFrontend.java:1101)
        at org.apache.flink.client.CliFrontend$1.call(CliFrontend.java:1098)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:422)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
        at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
        at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1098)
Caused by: org.apache.flink.runtime.client.JobTimeoutException: JobManager did not respond within 60000 ms
        at org.apache.flink.runtime.client.JobClient.submitJobDetached(JobClient.java:437)
        at org.apache.flink.client.program.ClusterClient.runDetached(ClusterClient.java:516)
        ... 14 more
Caused by: java.util.concurrent.TimeoutException
        at java.util.concurrent.CompletableFuture.timedGet(CompletableFuture.java:1771)
        at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1915)
        at org.apache.flink.runtime.client.JobClient.submitJobDetached(JobClient.java:435)
        ... 15 more


On Wed, May 2, 2018 at 9:52 AM, Julio Biason <julio.biason@xxxxxxxxx> wrote:
Hello all,

I'm building a standalone cluster with HA JobManager. So far, everything seems to work, but when i try to `flink run` my job, it fails with the following error:

Caused by: org.apache.flink.runtime.leaderretrieval.LeaderRetrievalException: Could not retrieve the leader gateway.

So far, I have two different machines running the JobManager and, looking at the logs, I can't see any problem whatsoever to explain why the flink command is refusing to run the pipeline...

Any ideas where I should look?

--
Julio Biason, Sofware Engineer
AZION  |  Deliver. Accelerate. Protect.
Office: +55 51 3083 8101  |  Mobile: +55 51 99907 0554



--
Julio Biason, Sofware Engineer
AZION  |  Deliver. Accelerate. Protect.
Office: +55 51 3083 8101  |  Mobile: +55 51 99907 0554




--
Julio Biason, Sofware Engineer
AZION  |  Deliver. Accelerate. Protect.
Office: +55 51 3083 8101  |  Mobile: +55 51 99907 0554



--
Julio Biason, Sofware Engineer
AZION  |  Deliver. Accelerate. Protect.
Office: +55 51 3083 8101  |  Mobile: +55 51 99907 0554