Kubernetes与大数据之三：为基于Kubernetes的Spark安装History Server

我不是女神ヾ 2022-05-09 05:38 268阅读 0赞

## **一、前言** ##

通过hadoop的共享目录，可以将Spark运行的状态通过运行在Kubernetes的History Server进行展示和跟踪。

在此之前，先要保证Hadoop HDFS已经顺利运行并且事先在hdfs建立如下目录:

hadoop fs -mkdir /eventLog

转载自https://blog.csdn.net/cloudvtech

## **二、在Kubernetes安装Spark History Server** ##

2.1 获取chart代码

git clone https://github.com/banzaicloud/banzai-charts.git

由于hdfs需要以非root用户连接，并且需要暴露对外服务端口所以作如下代码修改：

cd banzai-charts/spark-hs/
    
    [root@k8s-master-01 spark-hs]# git diff
    diff --git a/spark-hs/templates/deployment.yaml b/spark-hs/templates/deployment.yaml
    index bafa3fc..d2cb71b 100644
    --- a/spark-hs/templates/deployment.yaml
    +++ b/spark-hs/templates/deployment.yaml
    @@ -20,6 +20,8 @@ spec:
             image: "{
       { .Values.app.image.repository }}:{
       { .Values.app.image.tag }}"
             imagePullPolicy: {
       { .Values.app.image.pullPolicy }}
             env:
    +        - name: HADOOP_USER_NAME
    +          value: hadoop
             - name: SPARK_NO_DAEMONIZE
               value: "true"
             - name: SPARK_HISTORY_OPTS
    diff --git a/spark-hs/templates/service.yaml b/spark-hs/templates/service.yaml
    index f8e5b03..6033db9 100644
    --- a/spark-hs/templates/service.yaml
    +++ b/spark-hs/templates/service.yaml
    @@ -14,5 +14,7 @@ spec:
         targetPort: {
       { .Values.app.service.internalPort }}
         protocol: TCP
         name: {
       { .Chart.Name }}
    +    nodePort: 30555
    +  type: NodePort
       selector:
         app: {
       { template "fullname" . }}

2.2 获取镜像

> docker pull banzaicloud/spark-history-server:v2.2.1-k8s-1.0.30

2.3 通过helm安装

[root@k8s-master-01 spark-hs]# helm install --set app.logDirectory=hdfs://172.2.2.11:9000/eventLog .
    NAME:   flippant-gerbil
    LAST DEPLOYED: Fri Sep 21 04:21:43 2018
    NAMESPACE: default
    STATUS: DEPLOYED
    
    RESOURCES:
    ==> v1beta1/Deployment
    NAME                      DESIRED  CURRENT  UP-TO-DATE  AVAILABLE  AGE
    flippant-gerbil-spark-hs  1        1        1           0          50s
    
    ==> v1beta1/Ingress
    NAME                      HOSTS  ADDRESS  PORTS  AGE
    flippant-gerbil-spark-hs  *      80       50s
    
    ==> v1/Pod(related)
    NAME                                       READY  STATUS             RESTARTS  AGE
    flippant-gerbil-spark-hs-864d68d75d-f5mf5  0/1    ContainerCreating  0         50s
    
    ==> v1/ServiceAccount
    NAME                               SECRETS  AGE
    flippant-gerbil-spark-hs-spark-hs  1        50s
    
    ==> v1beta1/ClusterRoleBinding
    NAME                           AGE
    flippant-gerbil-spark-hs-rbac  50s
    
    ==> v1/Service
    NAME                      TYPE       CLUSTER-IP     EXTERNAL-IP  PORT(S)  AGE
    flippant-gerbil-spark-hs  ClusterIP  10.96.171.176  <none>       80/TCP   50s
    
    
    [root@k8s-master-01 spark-hs]# helm list 
    NAME               REVISION    UPDATED                     STATUS      CHART             APP VERSION    NAMESPACE
    flippant-gerbil    1           Fri Sep 21 04:21:43 2018    DEPLOYED    spark-hs-0.0.2                   default

转载自https://blog.csdn.net/cloudvtech

## 三、 运行和访问 ##

3.1 在submit Spark task的时候指定如下配置：

--conf spark.eventLog.dir=hdfs://172.2.2.11:9000/eventLog
      --conf spark.eventLog.enabled=true

3.2 GUI access

![70][]

转载自https://blog.csdn.net/cloudvtech

[70]: /images/20220509/7ed777d52714419db9e33cdeb10350d1.png