Hello World!
Per Cluster Allocation Explain API | Elasticsearch Guide [6.8] | Elastic - I ran and got following:
GET /_cluster/allocation/explain
"node_decision" : "throttled",
"deciders" : [
{
"decider" : "throttling",
"decision" : "THROTTLE",
"explanation" : "reached the limit of incoming shard recoveries [6], cluster setting [cluster.routing.allocation.node_concurrent_incoming_recoveries=2] (can also be set via [cluster.routing.allocation.node_concurrent_recoveries])"
}
]
After changing cluster.routing.allocation.node_concurrent_recoveries
setting (REF: Cluster Level Shard Allocation | Elasticsearch Guide [6.8] | Elastic), I believe that helped to recover cluster, however I still trying to understand why it got to that point at the first place...
Please advise
Thanks you in advance!