CHEN Zhongpu created FLINK-31228:
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Summary: flink-playgrounds is using a buggy zookeeper
Key: FLINK-31228
URL: https://issues.apache.org/jira/browse/FLINK-31228
Project: Flink
Issue Type: Bug
Reporter: CHEN Zhongpu
The flink-playgrounds [1] is using a buggy zookeeper image from docker hub, and
thus the kafka can never connect to the zookeeper server.
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How to reproduce the bug?
For example, after running "docker-compose up -d" in operations-playground [2],
we can observe in Flink web UI that the job will in "restarting" state soon,
and both "zookeeper" and "kafka" are stopped.
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I noticed that the used "wurstmeister/zookeeper:3.4.6" image was published in 7
years ago, and it is badly documented. In my test, switching to
"bitnami/zookeeper:3.7.1" can solve this problem.
Also, I think it would be better to discard images published by wurstmeister,
since they are not updated frequently (and there buggy), and we should switch
to bitnami.
[1][https://github.com/apache/flink-playgrounds|https://github.com/apache/flink-playgrounds)]
[2]
[https://github.com/apache/flink-playgrounds/tree/master/operations-playground)]
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