Configure TCP and UDP ports used in InfluxDB Enterprise

Enabled ports

8086

The default port that runs the InfluxDB HTTP service. It is used for the primary public write and query API. Clients include the CLI, Chronograf, InfluxDB client libraries, Grafana, curl, or anything that wants to write and read time series data to and from InfluxDB. Configure this port in the data node configuration file.

See also: API Reference.

8088

Data nodes listen on this port. Primarily used by other data nodes to handle distributed reads and writes at runtime. Used to control a data node (e.g., tell it to write to a specific shard or execute a query). It’s also used by meta nodes for cluster-type operations (e.g., tell a data node to join or leave the cluster).

This is the default port used for RPC calls used for inter-node communication and by the CLI for backup and restore operations (influxdb backup and influxd restore). Configure this port in the configuration file.

This port should not be exposed outside the cluster.

See also: Back up and restore.

8089

Used for communication between meta nodes. It is used by the Raft consensus protocol. The only clients using 8089 should be the other meta nodes in the cluster.

This port should not be exposed outside the cluster.

8091

Meta nodes listen on this port. It is used for the meta service API. Primarily used by data nodes to stay in sync about databases, retention policies, shards, users, privileges, etc. Used by meta nodes to receive incoming connections by data nodes and Chronograf. Clients also include the influxd-ctl command line tool and Chronograph,

This port should not be exposed outside the cluster.

Disabled ports

2003

The default port that runs the Graphite service. Enable and configure this port in the configuration file.

Resources Graphite README

4242

The default port that runs the OpenTSDB service. Enable and configure this port in the configuration file.

Resources OpenTSDB README

8089

The default port that runs the UDP service. Enable and configure this port in the configuration file.

Resources UDP README

25826

The default port that runs the Collectd service. Enable and configure this port in the configuration file.

Resources Collectd README