text stringlengths 0 59.1k |
|---|
Following this example, you will create a functional [Apache |
Storm](http://storm.apache.org/) cluster using Kubernetes and |
[Docker](http://docker.io). |
You will setup an [Apache ZooKeeper](http://zookeeper.apache.org/) |
service, a Storm master service (a.k.a. Nimbus server), and a set of |
Storm workers (a.k.a. supervisors). |
For the impatient expert, jump straight to the [tl;dr](#tldr) |
section. |
### Sources |
Source is freely available at: |
* Docker image - https://github.com/mattf/docker-storm |
* Docker Trusted Build - https://registry.hub.docker.com/search?q=mattf/storm |
## Step Zero: 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](https://kubernetes.io/docs/user-journeys/users/application-developer/foundational/#section-1) for installation |
instructions for your platform. |
## Step One: Start your ZooKeeper service |
ZooKeeper is a distributed coordination [service](https://kubernetes.io/docs/concepts/services-networking/service/) that Storm uses as a |
bootstrap and for state storage. |
Use the [`examples/storm/zookeeper.json`](zookeeper.json) file to create a [pod](https://kubernetes.io/docs/concepts/workloads/pods/pod/) running |
the ZooKeeper service. |
```sh |
$ kubectl create -f examples/storm/zookeeper.json |
``` |
Then, use the [`examples/storm/zookeeper-service.json`](zookeeper-service.json) file to create a |
logical service endpoint that Storm can use to access the ZooKeeper |
pod. |
```sh |
$ kubectl create -f examples/storm/zookeeper-service.json |
``` |
You should make sure the ZooKeeper pod is Running and accessible |
before proceeding. |
### Check to see if ZooKeeper is running |
```sh |
$ kubectl get pods |
NAME READY STATUS RESTARTS AGE |
zookeeper 1/1 Running 0 43s |
``` |
### Check to see if ZooKeeper is accessible |
```console |
$ kubectl get services |
NAME CLUSTER_IP EXTERNAL_IP PORT(S) SELECTOR AGE |
zookeeper 10.254.139.141 <none> 2181/TCP name=zookeeper 10m |
kubernetes 10.0.0.2 <none> 443/TCP <none> 1d |
$ echo ruok | nc 10.254.139.141 2181; echo |
imok |
``` |
## Step Two: Start your Nimbus service |
The Nimbus service is the master (or head) service for a Storm |
cluster. It depends on a functional ZooKeeper service. |
Use the [`examples/storm/storm-nimbus.json`](storm-nimbus.json) file to create a pod running |
the Nimbus service. |
```sh |
$ kubectl create -f examples/storm/storm-nimbus.json |
``` |
Then, use the [`examples/storm/storm-nimbus-service.json`](storm-nimbus-service.json) file to |
create a logical service endpoint that Storm workers can use to access |
the Nimbus pod. |
```sh |
$ kubectl create -f examples/storm/storm-nimbus-service.json |
``` |
Ensure that the Nimbus service is running and functional. |
### Check to see if Nimbus is running and accessible |
```sh |
$ kubectl get services |
NAME LABELS SELECTOR IP(S) PORT(S) |
kubernetes component=apiserver,provider=kubernetes <none> 10.254.0.2 443 |
zookeeper name=zookeeper name=zookeeper 10.254.139.141 2181 |
nimbus name=nimbus name=nimbus 10.254.115.208 6627 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.