How to optimize elasticsearch for high resin speed after reconnecting one of the nodes?

Question

elasticsearch

There are about 85,000,000 documents and 30GB of data in the elastic. After restarting the server with one of the nodes, a resync started, which loaded all the nodes with some exorbitant timeout numbers (there should be five nodes in total, but the fifth one is not included in the cluster now due to the response timeout of the remaining nodes) :
{
"cluster_name" : " Prod",
"status" : "red",
"timed_out" : false,
"number_of_nodes" : 4,
"number_of_data_nodes" : 4,
"active_primary_shards" : 1863,
"active_shards" : 3069,
"relocating_shards" : 0,
"initializing_shards" : 20,
"unassigned_shards" : 6426,
"
"number_of_in_flight_fetch" : 0,
"task_max_waiting_in_queue_millis" : 3558787,
"active_shards_percent_as_number" : 32.25433526011561
}
how can i optimize this process ?

Answer 1

The problem was solved by allocating more RAM for java under elastic