Install Jira applications to Amazon AWS and RDS
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Diagnosis
You have set up your Jira application properly (EC2 Windows 2008 Server)
RDS installation of MySQL is also complete as per Connecting a Jira application to MySQL documentation.
Symptoms
You get Error connecting to database...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.
If you try to connect to RDS you are connected without any issues, but Jira application cannot connect.
Workaround
It seems you need to configure the RDS security groups to accept remote connections specifically, including the Jira applications instance.
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