Jason Keltz created GUACAMOLE-2118:
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Summary: unable to upgrade 1.5.5 to 1.6.0 due to sporadic hanging
issue
Key: GUACAMOLE-2118
URL: https://issues.apache.org/jira/browse/GUACAMOLE-2118
Project: Guacamole
Issue Type: Bug
Affects Versions: 1.6.0
Reporter: Jason Keltz
I've been running Guacamole since around 2020, upgrading reasonably quickly
each and every time there's been an update. I update my Tomcat to the latest
9.X release from time to time (currently 9.0.102) , and my JDK to the latest
8.X release from time to time (currently jdk8u452-b09).
Recently, after attempting an upgrade from Guacamole 1.5.5 to 1.6.0, I ran into
a problem. Initially, everything seemed to work just fine. I can connect to
any of the systems I have available. However, at some point later, I notice in
the tomcat logs a lot of "connects" and "disconnects" to hosts. Users start
complaining that "Guacamole isn't working". What I noticed at this point was
that when they would try to return to a connection, it would connect, and
their existing connecting would start to redraw, but it would hang in the
middle. If I restart guacd at this point, it starts to work again, but the
problem comes back. Some users would see it. Other users were fine.
I feel like there's a bug hiding, and it may require a lot of user activity to
get to it. I ended up creating a devel system for testing, and I'm running
guac 1.6.0 there, and I've enabled full debugging, but I can't seem to make it
happen here yet. Is there any easy way I can force a bunch of connections?
The devel system is running labtest Rocky 8.10 (RHEL8.10) with latest kernel
and patches and this matches the production system. They are both installed
with the same kickstart configuration.
I'm opening this "bug" even though I don't have concrete information yet. If I
really have to do it, I may have to re-install on the production system to get
the debugging information that I need, but I'd rather not do it if not
necessary since it causes user inconvenience, and Guacamole is an important
part of our educational environment.
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