Can't connect to Bugzilla MySQL db when importing issues into Jira

Question

I am moving from Bugzilla to Jira Ondemand. To get there I'm importing my bugzilla issues into jira server (then into ondemand)

I'm getting this error when I try to run the importer

"Error connecting to the database: Could not create connection to database server. Attempted reconnect 3 times. Giving up."

I've tried the suggestion on this page already:

https://confluence.atlassian.com/jirakb/bugzilla-import-fails-with-could-not-create-connection-to-database-server-attempted-reconnect-3-times-giving-up-415367523.html

We are running this mySQL version on the bugzilla server:

mysql Ver 14.14 Distrib 5.1.73, for redhat-linux-gnu (x86_64) using readline 5.1

Thanks!

Volodymyr Krupach @BrizoIT · Answer

Most likely bugzilla server blocks 3306 MySQL port form outside. Make sure to adjust the firewall. You may need to google how to do it for your redhat version.