I have configured the below settings in elasticsearch.yml as follows.
The server spec is 24 CPU's and 64 GB RAM with 10 nodes, It has 150 shards with 15 Indexes.The heap memory allocated for elasticsearch is 31 GB. For the "threadpool.bulk.queue_size: 1000" , how it is dealt with individual node. We had huge no of rejection threads in bulk indexing.
Is this settings need to be re-factor?
Thanks for you response in Advance ....