Hello, ElasticSearch users.
I'm very new to ElasticSearch and just publish an ElasticSearch cluster.
My first try, without setting ES_HEAP_SIZE, gave me OutOfMemory Exception and the cluster lost all the nodes.
Now I've set ES_HEAP_SIZE to 50% of total memory (as recommended) and I am currently monitoring node stats.
It looks like heap_used_percent grows very quickly. It hit 70% in 6 hours.
So I am worrying about another OOM.
Could anyone tell me what happends when heap_used_percent hits 100%?