Optimize operation is no longer recommended for Solr, as the background merges got a lot smarter.
It is an extremely expensive operation that can require up to 3-times amount of disk during the processing. This is not to say yours is a valid question, which I am leaving to others to respond. Regards, Alex. ---- http://www.solr-start.com/ - Resources for Solr users, new and experienced On 2 March 2017 at 10:04, Caruana, Matthew <mcaru...@icij.org> wrote: > I’m currently performing an optimise operation on a ~190GB index with about 4 > million documents. The process has been running for hours. > > This is surprising, because the machine is an EC2 r4.xlarge with four cores > and 30GB of RAM, 24GB of which is allocated to the JVM. > > The load average has been steady at about 1.3. Memory usage is 25% or less > the whole time. iostat reports ~6% util. > > What gives? > > Running Solr 6.4.1.
