Indexing is slowing Jira

[Łukasz Grobelny]

Hello, 

We are running Jira Software on prem, and most likely some plugin is causing our instance to freeze - it can be of for 5-15 minutes. It usualy goes off after the indexing job:

2021-03-03 13:30:38,386+0100 JiraIndexCommitThread-7 INFO      [c.a.jira.index.MonitoringIndexWriter] [lucene-stats] flush stats: snapshotCount=1, totalCount=237, periodSec=1020, flushIntervalMillis=1020172, indexDirectory=/opt/jita/home$

2021-03-03 13:30:38,499+0100 JiraIndexCommitThread-1 INFO      [c.a.jira.index.MonitoringIndexWriter] [lucene-stats] flush stats: snapshotCount=1, totalCount=179, periodSec=1020, flushIntervalMillis=1020298, indexDirectory=/opt/jita/home$

2021-03-03 13:30:38,515+0100 JiraIndexCommitThread-3 INFO      [c.a.jira.index.MonitoringIndexWriter] [lucene-stats] flush stats: snapshotCount=3, totalCount=460, periodSec=1020, flushIntervalMillis=340104, indexDirectory=/opt/jita/home/$

2021-03-03 13:30:38,577+0100 JiraIndexCommitThread-18 INFO

Any idea what might be causing this?

[Matt Doar]

I've discussed this topic with Atlassian support in the past. 

I'd also start by reproducing the problem in staging, then remove suspicious plugins until you find a possible cause