Hi Shamik, funny enough, we had a similar issue with our old legacy application that still used plain Lucene code in a JBoss container.
Same, there were no specific queries or updates causing this, the performance just broke completely without unusual usage. GC was raising up to 99% or so. Sometimes it came back after some while but most often we had to completely restart JBoss for that. I never figured out what the root cause was, but my suspicion still is that Lucene was innocent. I rather suspect Rackspace's hypervisor to be the blamable. So maybe you can give it a try and have a look at the Amazon cloud settings? Best, Michael Am 22.09.2017 um 12:00 schrieb shamik: > All the tuning and scaling down of memory seemed to be stable for a couple of > days but then came down due to a huge spike in CPU usage, contributed by G1 > Old Generation GC. I'm really puzzled why the instances are suddenly > behaving like this. It's not that a sudden surge of load contributed to > this, query and indexing load seemed to be comparable with the previous time > frame. Just wondering if the hardware itself is not adequate enough for 6.6. > The instances are all running on 8 CPU / 30gb m3.2xlarge EC2 instances. > > Does anyone ever face issues similar to this? > > > > -- > Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html >
