Elasticsearch performance

my instance (single node)

  • m6g.large 2cpu 8ram
  • elastic version : 7.14.0
  • elastic is hiden by nginx proxy

when trying to do a batch index operation (about 2000 items in one batch), and, in the same time, i'm doing a lot (5-10 request per sec) of single index operations with refresh set to FALSE, the batch index process fails "no alive nodes found in your cluster in..."

any advice about how to optimize this process?

What is the full output of the cluster stats API? What type and size of storage are you using? What is the average size of your documents? Is there anything in the Elasticsearch logs around restarts or garbage collection?

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