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https://issues.apache.org/jira/browse/GUACAMOLE-1983?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nick Couchman updated GUACAMOLE-1983:
-------------------------------------
Priority: Minor (was: Major)
> Communications link failure
> ---------------------------
>
> Key: GUACAMOLE-1983
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-1983
> Project: Guacamole
> Issue Type: Bug
> Components: guacamole-auth-jdbc-mysql
> Affects Versions: 1.5.5
> Reporter: Marcelo
> Priority: Minor
>
> I have guacamode deployed with docker swarm
> guacamole version:
> [docker.io/guacamole/guacamole:latest|https://portainer.softpack.priv/#!/2/docker/images/docker.io~2Fguacamole~2Fguacamole%3Alatest]
> guacamoledb version:
> [docker.io/mariadb:10.9.5|https://portainer.softpack.priv/#!/2/docker/images/docker.io~2Fmariadb%3A10.9.5]
> guacad version:
> [guacamole/guacd:latest|https://portainer.softpack.priv/#!/2/docker/images/guacamole~2Fguacd%3Alatest]
> I created those containers with previous versions, but now updated everything
> as shown previously, and now, on guacamole log i have:
> {noformat}
> The last packet sent successfully to the server was 0 milliseconds ago. The
> driver has not received any packets from the server.
> 14:56:35.881 [http-nio-8080-exec-2] WARN
> o.a.g.e.AuthenticationProviderFacade - The "mysql" authentication provider
> has encountered an internal error which will halt the authentication process.
> If this is unexpected or you are the developer of this authentication
> provider, you may wish to enable debug-level logging. If this is expected and
> you wish to ignore such failures in the future, please set
> "skip-if-unavailable: mysql" within your guacamole.properties.
> 14:56:35.884 [http-nio-8080-exec-2] ERROR o.a.g.rest.RESTExceptionMapper -
> Unexpected internal error:
> ### Error querying database. Cause:
> com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link
> failure
> The last packet sent successfully to the server was 0 milliseconds ago. The
> driver has not received any packets from the server.
> ### The error may exist in org/apache/guacamole/auth/jdbc/user/UserMapper.xml
> ### The error may involve
> org.apache.guacamole.auth.jdbc.user.UserMapper.selectOne
> ### The error occurred while executing a query
> ### Cause: com.mysql.cj.jdbc.exceptions.CommunicationsException:
> Communications link failure{noformat}
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