I am running elasticsearch on 8 GB RHEL Rmachine.
I have 70GB partition /elasticsearch where data files are stored. recently I have changed file /etc/sysconfig/elasticsearch to allocate 3gb memory to ES_HEAP_SIZE. Also I changed values for number of shards and replicas.
When I start ES, it takes lot of time and consumes 100% CPU. Can anybody guess what is the reason? Where can I dig into?