DB Index Fragmentation

[Casey Daniell]

I am looking at some perf issues with our JIRA instance and noticed that the fill factor is 100% on our MSSQL box. 

1. Are there any automated jobs to rebuild indexes once they are over a certain level of fragmentation?
2. If not, is creating an automated index rebuild process supported?
3. Is creating SQL recommended indexes supported? (Yes, I know the drill on not simply apply every index SQL recommends)

[Nic Brough -Adaptavist- · Accepted solution]

JIRA is database agnostic - it uses a database driver to talk to the database, but it has no understanding of what the database is behind that.  If you suspect fragmentation or database indexing to be issues, then you need to deal with them on a database level.

[Casey Daniell]

Just to clarify, since JIRA is using some bad fill factors, it's acceptable to take some aspects of DB maintenance into my own hand and add a few missing indexes, or to implement DB maintenance plans to rebuild some indexes? 

[Nic Brough -Adaptavist-]

Yes, although do not do it while JIRA is running.