Yongqiang Li created ZEPPELIN-5014:
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Summary: Zeppelin server can't receive "RUN_PARAGRAPH" message
through websocket from web client
Key: ZEPPELIN-5014
URL: https://issues.apache.org/jira/browse/ZEPPELIN-5014
Project: Zeppelin
Issue Type: Bug
Components: Core
Affects Versions: 0.8.2
Environment: JVM 11.0.2
Python 3.7.6
Redhat 7.7.
Reporter: Yongqiang Li
Fix For: 0.9.0
After starting Zeppelin server, we find Zeppelin no response when people click
the run button on paragraph, especially when the paragraph is using python
interpreter.
We used a debugger to attach to the problematic server. Through websocket, the
message "RUN_PARAGRAPH" was sent from front-end but it's received by zeppelin
server. But other messages, such as "PING", "LIST_NOTE", "GET_NOTE" can be well
received.
And after rebooting the server, the "RUN_PARAGRAPH" message can be received as
expected.
In our use case, people mainly depend on python interpreter and due to this
issue, we have to reboot the server every week or half a week.
Please help to take a look and any idea or input is welcome. We are OK to
patch our 0.8.2 installation.
Thanks a lot.
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