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https://issues.apache.org/jira/browse/GUACAMOLE-650?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zachary Piazza closed GUACAMOLE-650.
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Resolution: Invalid
guacamole.properties was indeed invalid. apologies!
> "Communications Link Failure" with AWS Aurora (MySQL)
> -----------------------------------------------------
>
> Key: GUACAMOLE-650
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-650
> Project: Guacamole
> Issue Type: Bug
> Components: guacamole-auth-jdbc, guacamole-auth-jdbc-mysql
> Affects Versions: 0.9.14
> Reporter: Zachary Piazza
> Priority: Blocker
>
> I am receiving the following exception when attempting to authenticate
> against a Aurora RDS cluster. This issue doe not present when authenticating
> against a standard MySQL server running on an EC2 instance. I have verified
> that I able able to connect to this endpoint via the mysql command line
> client as to rule out the possibility of network issues. I have not seen any
> open issues or discussions on the mailing list regarding this issue. I have
> tried using the last two version of the mysql-connector with no change. Tried
> hard coding the "JDBC.loginTimeout" in the auth extension, also with zero
> impact.
> Full stack trace provided here: [http://dpaste.com/0GJ63JE]
> I can provide my guacamole.properties configuration if needed, however it is
> fairly standard, only specifying the guacd hostname and port along with the
> mysql parameters.
> """
> 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
> The last packet sent successfully to the server was 0 milliseconds ago. The
> driver has not received any packets from the server.
> """
>
>
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