Cmak: Yikes! Ask timed out on [ActorSelection[Anchor(akka://kafka-manager-system/), Path(/user/kafka-manager/prod/kafka-state)]] after [2000 ms]

[dinar-dalvi]

I tried to search for the solution to this one with no luck. Please help.

I am encountering the same issue Yikes! Ask timed out on [ActorSelection[Anchor(akka://kafka-manager-system/), Path(/user/kafka-manager/prod/kafka-state)]] after [2000 ms]

I am running the kafka-manager on a node where i can confirm that i can telnet into the ZK on 2181. We use Kafka 811.

I am running with
/home/ubuntu/kafka-manager-1.3.3.13/bin/kafka-manager -Dconfig.file=/home/ubuntu/kafka-manager-1.3.3.13/conf/application.conf -Dhttp.port=9292 -Dkafka-manager.zkhosts=kafka1:2181,kafka2:2181,kafka3:2181,kafka4:2181 > /var/log/kafka-manager.log 2>/home/ubuntu/kafka-manager-1.3.3.13/error.log &

When i load the test cluster it's fine. Help needed please.

[simplesteph]

Disabling Poll consumer information (Not recommended for large # of consumers) fixes it for me

[dinar-dalvi]

I don't have it checked in anyways.

[dinar-dalvi]

seems like i have around 14k topics and this is the issue, any suggestions?

[esteban-zenedge]

I had the same error, in my case I fixed it by limiting the Cluster ZooKeeper hosts field to IP address and port:
Before: zk1:2181,zk2:2181/NAMESPACE
After: zk1:2181,zk2:2181

[tanuj83]

it is good tool for consumer information collection, how to mitigate this issue by keeping "Poll consumer information"

[wenxzhen]

Met with the same issue, with "poll consumer infomation", seemed I can get the incoming message rate.
It's quite useful

---

I did some configuration changes per description on the https://github.com/yahoo/kafka-manager, mainly for the thread pool size and the queue size, now it works. :(

[marcosArruda]

Thats not the solution guys. The problem keeps coming back no matter what configs you change. Every pseudo-solution to this problem consist on ThreadPools or kafka Manager Cluster Config being restarted. The problem still come back in time. The number of topics on the cluster seems to be strongly related.

Here we have 2 clusters:
-(sandbox) 3 brokers, 250 topics, ~70 m/s;
-(prod) 3 brokers, 450 topics, ~150 m/s;

The problem keeps coming back on prod after we restart kafka manager or change configs. It works for like 2 hours and then fail again.

I dont know scala very well. If I do, I would have a fix coming in a way. I think the problem could be fixed by increasing the 5000ms also. But could not test this yet.

[JarenGlover]

@simplesteph is the expectation that one should use that setting? It is quite helpful (when it works). Curious have you came across anything to help resolve it?

[simplesteph]

@JarenGlover honestly I have no idea and I just don't use the kafka manager to manage my consumer. My project is dead. It works for listing topics and that's what I needed right now

[JarenGlover]

@simplesteph thanks. do you have a preferred tool of choice for managing your consumers? visually's ideally.

[qdore]

@marcosArruda +1, in the same situation

[wenxzhen]

From my experience, the timeout mostly means that there is a consumer working not well. If our consumers work well, we will not met with such issue.

[JarenGlover]

@wenxzhen interesting. is there an example of what you mean by the consumer "not working well?".

I would see this /topic route timeout and the jmx info not show up in the /broker route.

[wenxzhen]

often I would see the consumer failed to commit the offset. And it seemed it's busy with the committing and not able to respond to the query

[DavidLiuXh]

I committed a pull request https://github.com/yahoo/kafka-manager/pull/456.
No problem occurred during my testing when no longer use Future[PartitionOffsetCapture] to get topic offsets.

[wuxingdexian]

In my case, I have 3 zk nodes. When I entered "Cluster Zookeeper Hosts" with slb address or a one zk node's ip address, I got this error. Finally, I entered all the 3 zk nodes' ip addresses, then it worked. Suggest entering some zk addresses not only one.

Notice: "Cluster Zookeeper Hosts" shows a tip with "zk1:2181,zk2:2181,zk3:2181/NAMESPACE", but actually it is "zk1:2181/NAMESPACE,zk2:2181/NAMESPACE,zk3:2181/NAMESPACE". If you enter "zk1:2181,zk2:2181,zk3:2181/NAMESPACE" format, you will get this error too.

[JarenGlover]

@wuxingdexian interesting. This was helpful with what version of the application?

[timusri]

I also have the same issue it looks like Kafka-manager also needs all Kafka brokers to connect if it not reachable it will throw the error in the logs and in the console. Once I added the brokers in the firewall, all started working like charm.
I wasted a lot of time in debugging this issue, it was the firewall issue for me, So every time when we add new brokers we need to make sure Kafka manager should connect to that brokers.

[autocyz]

If your kafka manager run at your zk host, for web config Cluster Zookeeper Hosts, use localhost:2181 instead of ip:2181.
That works for me.