We are using new server with 24 cores, RAID 5, 64 GB RAM
Have about 70 indices and trying to write data to it using bulk insert(batch size 5k per index)
But sometimes we have timeouts:
Invalid NEST response built from a unsuccessful low level call on POST: /index1/message/_bulk # Audit trail of this API call: -  BadResponse: Node: http://server:9200/ Took: 00:01:28.1294390 -  MaxTimeoutReached: Took: -736221.10:34:34.9317145 # OriginalException: System.Net.WebException: The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
Could you please explain which timeout we reached and can we tune it?