Question

I have a table in my Grails app that is growing rather large – 100,000 rows or so and it’s growing by about 10,000 rows per day. I’ve noticed that inserts are getting progressively slower as the table grows. I assume this has to do with my indexes. What is the best way to address this?

Answer 1

Yes could be indexes, but often the biggest hit is because the hibernate session is bloated out, described well by Ted Naleid . If this doesn’t work for you tell us more about your situation are you doing bulk inserts or is it your site getting 10000 inserts from different requests etc?

I got around this by having a simple method that is called every so often as Ted suggests (eg every 1000 rows inserted)

def cleanUpGorm() {
        def session = sessionFactory.currentSession
        session.flush()
        session.clear()
        propertyInstanceMap.get().clear()
    }