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https://issues.apache.org/jira/browse/GUACAMOLE-2309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18099319#comment-18099319
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Marco van Zwetselaar commented on GUACAMOLE-2309:
-------------------------------------------------
Disregard the logback.xml data point, it's a confounder - and possibly a
separate issue. Even with {{<root level="debug"/>}} in logback.xml, the DEBUG
lines do _not_ appear.
The issue really is with {{log-level}} in guacamole.properties. Setting it to
{{debug}} or {{warn}} produces the DEBUG lines, whereas {{info}} or {{error}}
don't.
The cause may well be [~vnick]'s hunch: the enum definition in LogLevel.java
should probably read {{{}WARNING("warn"){}}}.
Note: to reproduce, wait 1 minute after Tomcat has restarted and you'll see the
DEBUG lines being logged.
> "log-level: warn" is broken
> ----------------------------
>
> Key: GUACAMOLE-2309
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-2309
> Project: Guacamole
> Issue Type: Bug
> Components: guacamole
> Affects Versions: 1.6.0
> Reporter: Marco van Zwetselaar
> Priority: Minor
>
> Setting {{'log-level: warn'}} in {{guacamole.properties}} does not limit
> logging to {{WARN}} and above. At startup, catalina.out shows that the level
> is being set:
> {{[2026-07-26 21:34:51] [info] 21:34:51.388 [main] INFO
> org.apache.guacamole.log.LogModule -- Logging will be at the "warning"
> level.}}
> However, these two DEBUG level lines are logged every minute:
> {{[2026-07-26 00:45:42] [info] 00:45:42.650 [pool-1-thread-1] DEBUG
> o.a.g.rest.auth.HashTokenSessionMap - Session check completed in 0 ms.}}
> {{[2026-07-26 00:46:42] [info] 00:46:42.650 [pool-1-thread-1] DEBUG
> o.a.g.rest.auth.HashTokenSessionMap - Checking for expired or invalid
> sessions...}}
> When keeping {{log-level}} unset, or setting it to {{info}} or {{{}error{}}},
> these DEBUG lines are not logged. Nor are they logged when I drop a file
> {{/etc/guacamole/logback.xml}} with {{{}<configuration><root level="warn"
> /></configuration>{}}}.
> This is on Tomcat 10.1.16 on Ubuntu 24.04, in a no-frills installation.
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