Configuration

See full configuration here

Configuration files are in HOCON format

Network configuration

Property name Default value Meaning
mist.cluster.host 0.0.0.0 default communication host
mist.cluster.port 2551 default communication port
mist.http.host 0.0.0.0 default http host
mist.http.port 2004 default http port
mist.log-service.host 0.0.0.0 default http host
mist.log-service.port 2005 default http port

Also it’s possible to use auto value for host configuration keys - mist automactically infers the best matched host address.

mist.cluster.host = "auto"

It’s usefull in case when mist works in environment where we need to set up public visible address. For example: running mist-worker in separate docker container, using kubernetes cluster for spark

Worker configuration

Property name Default value Meaning
mist.workers.runner-init-timeout 2 minutes Worker creation timeout
mist.workers.ready-timeout 2 minutes Spark context creation timeout
mist.workers.runner local How mist spawn workers

Runners

There are several ways how mist spawn workers:

  • local - just local submit-submit on the same node
  • docker - Spawn worker in separated docker container
  • manual - custom script for worker spawning - example.

See additional configuration for docker and manual runners bellow:

Docker
Property name Default value Meaning
workers.docker.host unix:///var/run/docker.sock Docker server adress
workers.docker.image hydrosphere/mist:1.1.1-2.3.0” Mist docker image
workers.docker.mist-home /usr/share/mist Path to mist home inside image
workers.docker.spark-home /usr/share/spark Path to spark home inside image
workers.docker.network-type net Docker network driver. Allowed values: net, bridge, auto-master - clone master network settings if it’s runned inside container
worker.docker.auto-master-network.container.id   Mist master docker container id (usage)
Manual
Property name Default value Meaning
workers.manual.startCmd   path to start script
workers.manual.stopCmd   path to stop script

Enable async interfaces to receive events

Kafka:

Property name Default value Meaning
mist.kafka.on false Turning on/off support of async jobs with kafka
mist.kafka.host localhost Broker host
mist.kafka.port 9092 Broker port
mist.kafka.subscribe-topic no default value Topic Mist listens to for incoming requests
mist.kafka.publish-topic no default value Topic Mist writes response into

MQTT:

Property name Default value Meaning
mist.mqtt.on false Turning on/off support of async jobs with MQTT
mist.mqtt.host localhost MQTT server host
mist.mqtt.port 1883 MQTT server port
mist.mqtt.subscribe-topic no default value Topic Mist listens to for incoming requests
mist.mqtt.publish-topic no default value Topic Mist writes response into

Enable Kerberos

Example:

mist {
  security {
    enabled = true
    keytab = ${path_to_keytab}
    principal = ${your_principal}
    interval = 30 minutes # default 1 hour
  }
}

Default context

To override settings for default context use prefix mist.context-defaults - (master.conf)[https://github.com/Hydrospheredata/mist/blob/master/mist/master/src/main/resources/master.conf#L73].