When using JIRA 6.3.15 and JIRA Agile 6.6.80, I see lots of repetitive queries. Those aren't particularly bad, but it makes me consider whether we should have the query cache turned on. We do this in our staging database and see a hit rate of about 30%. That's not really high enough to justify the overhead of a 70% miss rate, but that's staging where we aren't getting the same profile of queries.
