Change the breaker limit

This is a temporary change, and probably a dumb one.

curl -XPUT localhost:9200/_cluster/settings -d '{
  "transient" : {
    "indices.breaker.request.limit" : "41%"
  }
}'

get info about nodes in cluster

sort by role, then disk usage

GET _cat/nodes?v&h=name,role,master,shardStatsTotalCount,diskTotal,diskUsedPercent,cpu,load_1m,load_5m,load_15m,heapMax,heapCurrent,heapPercent&s=role,diskUsedPercent

get pipeline statistics for troubleshooting ingest processing times

GET _nodes/stats/ingest?filter_path=nodes.*.ingest

get number of indexing failures for all indices

GET _all/_stats/indexing?filter_path=indices.*.total.indexing.index_failed

show the current write thread pool statistics

queue is particularly useful for diagnosing the overall write load on the cluster see: cat-thread-pool

GET _cat/thread_pool/write?v&h=node_name,name,active,size_queue,queue_size,rejected