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yahoo / CMAK

CMAK is a tool for managing Apache Kafka clusters
Apache License 2.0
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Unable to get broker/topic info when JMX is enabled #229

Open montana-ua opened 8 years ago

montana-ua commented 8 years ago

Some times ago I have faced the issue "Ask timed out on [ActorSelection[Anchor(aka://kafka-manager-system/), Path(/user/kafka-manager/)]] after 5000ms" on two different kafka-manager instances. My zookeeper.connect string was correct. I had able to connect to kafka-manager web UI. I had able to select cluster and see the list of available broker but metric values were empty for it. I have checked an application.conf, network connectivity and did not find any problem. I have restarted kafka-manager instance and problem has not been solved. The issue went out when I performed disable/enable JMX polling for cluster (now I can't reproduce this issue but I faced it some times on different kafka-manager instances). May be there is the bug in kafka-manager?

OS: RHEL 6.7 Java: 1.8.0.77 Kafka-Manager: 1.3.0.4/1.3.0.7 Zookeeper 3.4.8 (java 1.7.0.80) Kafka 0.8.2.2 (java 1.7.0.80)

Below are my config file, application log with debug level (from the start point to first "Ask timed out" error), several screenshots. This is my application.conf This is my application.log

km-cluster info km-broker error km-topics error km-brokers list
patelh commented 8 years ago

Did you apply the patch to get broker and topic size info ?

montana-ua commented 8 years ago

Yes. The patch KAFKA-1614 was applied.

userBD commented 8 years ago

Hi did you find a solution ?

montana-ua commented 8 years ago

No, I did not find a solution. My workaround is disable/enable JMX for cluster.