akihiro kumabe created KAFKA-10065:
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Summary: One of the Kafka broker processes in the cluster suddenly
hangs and becomes unresponsive
Key: KAFKA-10065
URL: https://issues.apache.org/jira/browse/KAFKA-10065
Project: Kafka
Issue Type: Bug
Affects Versions: 1.1.1
Reporter: akihiro kumabe
Kafka version: 1.1.1
I have 3 Brokers and 3 zookeepers.
One of the Kafka broker processes in the cluster hung and became unresponsive
three times in the last month.
I investigated a Java thread dump. Although some threads such as Kafka Fetcher
were Parked, I could not find any deadlock.
Server resources, heap memory seemed to be fine, and Kafka logs also had no
suspicious output.
Many TCP connections with close-wait status remained.
Recovered by simply restarting the process.
Similar to # 5778, but it's unclear if a version upgrade will solve it
https://issues.apache.org/jira/browse/KAFKA-5778
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