Antoine created GUACAMOLE-1131:
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             Summary: "Communications link failure" after a while
                 Key: GUACAMOLE-1131
                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-1131
             Project: Guacamole
          Issue Type: Bug
          Components: guacamole-auth-jdbc
    Affects Versions: 1.2.0
         Environment: Docker
            Reporter: Antoine


Hello,

Since I upgraded to Guacamole 1.2.0 on my Docker infrastructure, I have an 
error preventing the webpage to be displayed after a while (~1h). The server 
works for a bit, then the error appears. The /guacamole/api/tokens endpoint 
never respond.
{noformat}
==> /usr/local/tomcat/logs/catalina.2020-07-09.log <==
09-Jul-2020 12:03:36.527 WARNING [http-nio-8080-exec-8] 
org.apache.ibatis.logging.jdk14.Jdk14LoggingImpl.warn Execution of ping query 
'SELECT 1' failed: Communications link failure

The last packet successfully received from the server was 2,872,642 
milliseconds ago.  The last packet sent successfully to the server was 927,976 
milliseconds ago.
{noformat}

I can ping the DB from the guacamole container, and a restart solve the issue 
for ~1h, sometime less...

I use OpenID and JDBC pluggin

Thank in advance,
Antoine



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