I have about 600M rows or 200GB of data being written from Hive to elastic via elastic-spark connectors.
Things start out fine and slow down progressively and around mid point I get the following exception on the spark client side.
Caused by: org.elasticsearch.hadoop.rest.EsHadoopNoNodesLeftException: Connection error (check network and/or pr
oxy settings)- all nodes failed; tried tried [[http://77eba63e96b349a88b3ce7560af43d4a.188.8.131.52.ip.es.io:9200]]
My elastic cluster is a 4 node cluster with 8 GB RAM each.
I have not setup load balancer in front of the proxy, but specified all the proxies via the es.nodes=http://184.108.40.206:9200, http:220.127.116.11:9200 etc
Any tips on how to troubleshoot?