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https://issues.apache.org/jira/browse/GUACAMOLE-919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17024128#comment-17024128
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Nick Couchman commented on GUACAMOLE-919:
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Thanks [~mjumper], I'll look into that, too. I also use PostgreSQL in multiple
deployments and have not seen this issue, which makes me wonder if it is
something to do with slightly unexpected DB response time that causes the
issues. In all of my deployments the DB is located on the same system (VM) as
the Tomcat deployment, and I'm not pushing resource boundaries for the system
at all.
> An I/O error occurred while sending to the backend
> --------------------------------------------------
>
> Key: GUACAMOLE-919
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-919
> Project: Guacamole
> Issue Type: Bug
> Components: guacamole-auth-jdbc-postgresql
> Affects Versions: 1.0.0
> Reporter: Mechanix
> Assignee: Nick Couchman
> Priority: Minor
> Attachments: image-2020-01-27-15-19-26-634.png
>
>
> Hi,
> we use guacamole with postgresql and openid extension. Guacamole and guacd is
> deployed inside a k8s cluster.
> For some reason, the authentication doesn't succeed sporadically; there is
> only a blank page and this error message in the guacamole log:
> *[pool-1-thread-1] WARN o.a.i.d.pooled.PooledDataSource - Execution of ping
> query 'SELECT 1' failed: An I/O error occurred while sending to the backend.*
> I suspect there is a weird timeout happening between guacamole and postgresql
> but could figure out why.
> Any hints are much appreciated. Thanks
>
>
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