[jira] [Closed] (GUACAMOLE-650) "Communications Link Failure" with AWS Aurora (MySQL)

["Zachary Piazza (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GUACAMOLE-650?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zachary Piazza closed GUACAMOLE-650.
------------------------------------
    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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