we were getting 60-80K indexing rate in our production cluster, after upgrading the cluster (from v 2.2.2) we had this go down to 12-14K.
There is no change in any of config files. Is there a change in the logstash uses resources from 2.2.2 to 2.3.1
No information in the logs even in --debug mode
Any help in this direction is appreciated.