Sebastien B. created ZEPPELIN-5947:
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Summary: Increasing WebSocket idle connections timeout
Key: ZEPPELIN-5947
URL: https://issues.apache.org/jira/browse/ZEPPELIN-5947
Project: Zeppelin
Issue Type: Bug
Components: conf, GUI, zeppelin-server, zeppelin-web
Affects Versions: 0.10.1
Reporter: Sebastien B.
Hi, after 5 minutes of inactivity, WebSocket connections get disconnected. Is
it possible to increase this timeout?
To reproduce:
# Run a Docker container:
{code:java}
docker run --rm -p 8080:8080 apache/zeppelin:0.10.1{code}
# Open a WebSocket connection:
{code:java}
wscat -c 'ws://localhost:8080/ws' {code}
# Do nothing for 5 minutes.
This error appears:
{code:java}
Disconnected (code: 1001, reason: "java.util.concurrent.TimeoutException: Idle
timeout expired: 300000/300000 ms"){code}
The same behavior can be observed with the UI. If I stop working for more than
5 minutes on my notebook, but I keep it open in my browser, it refreshes and I
lose my outputs.
Some kind of keepalive mechanism would actually be ideal, instead of increasing
the timeout. What do you think?
Thank you.
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