NumActive connection pool increased dramatically after Jira Software

Question

The pool of NumActive connections increased dramatically after the upgrade from Jira server software to version 8.13.7 and from Jira server SD 4.13.7. Previously, this value could range from 0 to 3, and after the upgrade, there is a constant value of Num Active from 5 or more. How critical is this? The database is Microsoft SQL Server 2016 (SP2) (KB4052908) - 13.0.50226.0 (x64). I would appreciate an answer.

Brant Schroeder · Answer

@Artem Semenov No need to send the DB. As far as the log goes are you seeing any errors or stuck processes over and over again?

Artem Semenov · Answer

Hello @Brant Schroeder

I checked the database as indicated in the link

SELECT is_read_committed_snapshot_on FROM sys. databases WHERE name= 'JIRA-DATABASE';

the request returned 1.

I can send you logs and configuration files if this helps clarify the reason. Unfortunately, I can't provide the database itself, because the security policy does not allow this.

Brant Schroeder · Answer

@Artem Semenov - It looks like you are having some stuck threads.  I would work with your DB to see if you can see which queries are hanging and taking a long time to clear.  You should also check your logs as well and see what changed since the upgrade.

You can also take a look at this as it could be the issue https://confluence.atlassian.com/jirakb/jira-is-running-out-of-database-connections-frequently-on-ms-sql-server-816682427.html