I've tried updating the number of replicas as follows, according to the documentation
curl -XPUT 'localhost:9200/_settings' -d '
{ "index" : { "number_of_replicas" : 4 } }'
This correctly changes the replica count for existing nodes. However, when logstash creates a new index the following day, number_of_replicas is set to the old value.
Is there a way to permanently change the default value for this setting without updating all the elasticsearch.yml
files in the cluster and restarting the services?
FWIW I've also tried
curl -XPUT 'localhost:9200/logstash-*/_settings' -d '
{ "index" : { "number_of_replicas" : 4 } }'
to no avail.