Red Hat Bugzilla – Bug 1253526
Increase the MySQL max_connections on the undercloud
Last modified: 2016-04-18 02:51:39 EDT
Description of problem:
During an Heat stack deletion, the stack failed and we are unable to remove it even after many retries.
We can see MySQL max_connection errors in the Heat logs:
OperationalError: (_mysql_exceptions.OperationalError) (1040, 'Too many connections')\n"]."
The full log is in the "Additional info" section.
After raised the max_connections to 2048, I was able to delete the Heat stack.
Version-Release number of selected component (if applicable):
puddle images 2015-07-30.1
It can be reproduce with big Heat stack, like 10 nodes to deploy.
Steps to Reproduce:
1. Heat stack deployment
2. Heat stack deletion
Unable to delete the Heat stack even after many retries.
Be able to delete an Heat stack without error.
Heat error logs: http://pastebin.test.redhat.com/305355
*** This bug has been marked as a duplicate of bug 1243600 ***