Path to directory where to store the data (separate multiple locations by comma):
#path.data: /path/to/data
Path to log files:
#path.logs: /path/to/logs
----------------------------------- Memory -----------------------------------
Lock the memory on startup:
#bootstrap.memory_lock: true
Make sure that the heap size is set to about half the memory available
on the system and that the owner of the process is allowed to use this
limit.
Elasticsearch performs poorly when the system is swapping the memory.
---------------------------------- Network -----------------------------------
Set the bind address to a specific IP (IPv4 or IPv6):
http.host: 100.84.57.2
transport.host: localhost
transport.tcp.port: 9300
#network.host: 100.84.57.2
Set a custom port for HTTP:
#http.port: 9200
For more information, consult the network module documentation.
--------------------------------- Discovery ----------------------------------
Pass an initial list of hosts to perform discovery when new node is started:
The default list of hosts is ["127.0.0.1", "[::1]"]
#discovery.zen.ping.unicast.hosts: ["host1", "host2"]
Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):
#discovery.zen.minimum_master_nodes:
For more information, consult the zen discovery module documentation.
---------------------------------- Gateway -----------------------------------
Block initial recovery after a full cluster restart until N nodes are started:
#gateway.recover_after_nodes: 3
For more information, consult the gateway module documentation.
---------------------------------- Various -----------------------------------
Require explicit names when deleting indices:
#action.destructive_requires_name: true
xpack.security.enabled: true