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README.md

Storm

Apache Storm is a free and open source distributed realtime computation system. Storm makes it easy to reliably process unbounded streams of data, doing for realtime processing what Hadoop did for batch processing. Storm is simple, can be used with any programming language, and is a lot of fun to use!

Prerequisites

This example assumes you have a Kubernetes cluster installed and running, and that you have installed the kubectl command line tool somewhere in your path. Please see the getting started for installation instructions for your platform.

Installing the Chart

To install the chart with the release name my-storm:

$ helm repo add gresearch https://g-research.github.io/charts
$ helm install my-storm gresearch/storm

Configuration

The following table lists the configurable parameters of the Storm chart and their default values.

Global

Parameter Description Default
nameOverride Override to expand name of chart ""
fullnameOverride Override App Name ""
enabled Enable chart true
namespace Override namespace ""

Nimbus

Parameter Description Default
nimbus.replicaCount Number of replicas 1
nimbus.image.repository Container image name storm
nimbus.image.tag Container image version 2.4.0
nimbus.image.pullPolicy The default pull policy IfNotPresent
nimbus.service.name Service name nimbus
nimbus.service.type Service Type ClusterIP
nimbus.service.port Service Port 6627
nimbus.resources.limits.cpu Compute resources 100m

Supervisor

Parameter Description Default
supervisor.replicaCount Number of replicas 2
supervisor.image.repository Container image name storm
supervisor.image.tag Container image version 2.4.0
supervisor.image.pullPolicy The default pull policy IfNotPresent
supervisor.service.name Service Name supervisor
supervisor.service.type Service Type ClusterIP
supervisor.slots Slots/Workers (one port each) 4
supervisor.resources.requests.memory Compute Resouces 512Mi
supervisor.resources.requests.cpu Compute Resouces 1
supervisor.resources.limits.memory Compute Resouces 1024Mi
supervisor.resources.limits.cpu Compute Resouces 2
supervisor.extraVolumes Optionally specify extra list of additional volumes []
supervisor.extraVolumeMounts Optionally specify extra list of additional volumeMounts []

User Interface

Parameter Description Default
ui.enabled Enable the UI true
ui.replicaCount Number of replicas 1
ui.image.repository Container image name storm
ui.image.tag UI image version 2.4.0
ui.image.pullPolicy The default pull policy IfNotPresent
ui.service.type UI Service Type ClusterIP
ui.service.name UI service name ui
ui.service.port UI service port 8080
ui.resources.limits.cpu Compute resources 100m
ui.header.bufferbytes Max size of headers 8192kB

Zookeeper

Parameter Description Default
zookeeper.enabled Enable Zookeeper true
zookeeper.service.name Service name zookeeper

Store

Parameter Description Default
store.localdatadir Data dir location /data
store.logdir Logs dir location /logs
store.log4j2conf Log4j2 dir location /log4j2
store.config Config dir location /conf
store.metricsdb Metrics db dir location /storm_rocks

Security

Parameter Description Default
security.userid Run as user 1000
security.groupid Group ID 2000

Topology

Parameter Description Default
topology.javaserialization Set Java Serialization true
topology.loadaware.disablemessaging Disable loadaware messaging true

JMX

Parameter Description Default
jmx.enabled Enable JMX exporter metrics service false
jmx.config Storm metrics to export .*

Exporters

Parameter Description Default
exporter.prometheus.enabled Enable Prometheus exporter true

Specify each parameter using the --set key=value[,key=value] argument to helm install.

Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,

$ helm install --name my-release -f values.yaml incubator/storm

Tip: You can use the default values.yaml