Jonas Zeiger created GUACAMOLE-958:
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Summary: Race in guacd client termination
Key: GUACAMOLE-958
URL: https://issues.apache.org/jira/browse/GUACAMOLE-958
Project: Guacamole
Issue Type: Bug
Components: guacd
Affects Versions: 1.1.0
Reporter: Jonas Zeiger
I observed delays when trying to shutdown guacd cleanly:
{code:java}
2020-02-12 12:20:52.886 [some-app] [0c7bfb7f-c009-4685-8b83-a144aa0bb4f6]
[140049387599616]: guacd[174]: DEBUG: Client terminated successfully.
2020-02-12 12:20:52.887 [some-app] [0c7bfb7f-c009-4685-8b83-a144aa0bb4f6]
[140049387599616]: guacd[166]: ERROR: Error handling message from VNC server.
2020-02-12 12:20:52.887 [some-app] [0c7bfb7f-c009-4685-8b83-a144aa0bb4f6]
[140049387599616]: guacd[166]: INFO: User
"@e2dac0b0-5e01-4b3e-8898-14d2d351abee" disconnected (0 users remain)
2020-02-12 12:20:52.887 [some-app] [0c7bfb7f-c009-4685-8b83-a144aa0bb4f6]
[140049387599616]: guacd[166]: INFO: Last user of connection
"$902a4fea-c198-409f-a249-9a5dbaa4bdec" disconnected
2020-02-12 12:20:52.887 [some-app] [0c7bfb7f-c009-4685-8b83-a144aa0bb4f6]
[140049387599616]: guacd[166]: DEBUG: Requesting termination of client...
2020-02-12 12:20:52.887 [some-app] [0c7bfb7f-c009-4685-8b83-a144aa0bb4f6]
[140049387599616]: guacd[166]: INFO: Internal VNC client disconnected
2020-02-12 12:20:57.887 [some-app] [0c7bfb7f-c009-4685-8b83-a144aa0bb4f6]
[140049387599616]: guacd[166]: WARNING: Client did not terminate in a
timely manner. Forcibly terminating client and any child processes.
{code}
I suspect the client actually terminated properly (see log message "Internal
VNC client disconnected").
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