hi, we have 6 servers and 14 shards in cluster, the index size 26GB, we have 1 replica so total size is 52GB, and ES v1.4.0, java version "1.7.0_65"
we use servers with RAM of 14GB (m3.xlarge), and heap is set to 7GB around week ago we started facing next issue: random cluster servers around once per day/two are hitting the heap size limit (java.lang.OutOfMemoryError: Java heap space) in log, and cluster is failing - becomes red or yellow we tried adding more servers to cluster - even 8, but than it's a matter of time when we'll hit the problem, so looks no matter how many servers are in cluster - it will still hit the limit after some time before we started facing the problem we were running smoothly with 3 servers also we set indices.fielddata.cache.size: 40% but it didnt helped also, there are possible workarounds to decrease heap usage: 1) reboot some server - than heap becomes under 70% and for some time cluster is ok or 2) decrease number of replicas to 0, and than back to 1 but I dont like to use those workarounds how it can happen while all index can fit into RAM it can run out of it? thanks much for possible help -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/2ae23017-fde7-4b10-b31b-39076b079f10%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
