On 09/29/2014 03:12 PM, Nader Lahouti wrote:

I increased the max_connection to 2000 and so far don't see any issue.
After launching 20 VMs the number of connections as follows:

Mon Sep 29 05:05:29 PDT 2014
Number of open TCP:3306 - 326
Number of open TCP:3306 nova-api - 34
Number of open TCP:3306 mysqld - 163
Number of open TCP:8774 - 66
Number of nova-api - 98

It seems the default max_connection for Juno in not enough and should be
changed as you suggested. But the question is what is correct/reliable

max_connections is not an OpenStack configuration option (therefore there isn't a "default max_connections for Juno". It is a MySQL-specific option.


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