一、概述
Livy是一个提供Rest接口和spark集群交互的服务。它可以提交Spark Job或者Spark一段代码,同步或者异步的返回结果;也提供Sparkcontext的管理,通过Restful接口或RPC客户端库。Livy也简化了与Spark与应用服务的交互,这允许通过web/mobile与Spark的使用交互。
官网：https://livy.incubator.apache.org/GitHub地址：https://github.com/apache/incubator-livy关于Apache Livy更多介绍也可以参考我这篇文章：Spark开源REST服务——Apache Livy（Spark 客户端）
二、开始编排部署
1）部署包准备
这里也提供上面编译好的livy部署包，有需要的小伙伴可以自行下载：
链接：https://pan.baidu.com/s/1pPCbe0lUJ6ji8rvQYsVw9A?pwd=qn7i提取码：qn7i
1）构建镜像
Dockerfile
FROM myharbor.com/bigdata/centos:7.9.2009
RUN rm -f /etc/localtime && ln -sv /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && echo "Asia/Shanghai">/etc/timezone
RUN export LANG=zh_CN.UTF-8
### install tools
RUN yum install -y vim tar wget curl less telnet net-tools lsof
RUN groupadd --system --gid=9999 admin && useradd --system -m /home/admin --uid=9999 --gid=admin admin
RUN mkdir -p /opt/apache
ADD apache-livy-0.8.0-incubating-SNAPSHOT-bin.zip/opt/apache/
ENV LIVY_HOME=/opt/apache/apache-livy
RUN ln -s /opt/apache/apache-livy-0.8.0-incubating-SNAPSHOT-bin $LIVY_HOME
ADD hadoop-3.3.2.tar.gz/opt/apache/
ENV HADOOP_HOME=/opt/apache/hadoop
RUN ln -s /opt/apache/hadoop-3.3.2 $HADOOP_HOME
ENV HADOOP_CONFIG_DIR=${HADOOP_HOME}/etc/hadoop
ADD spark-3.3.0-bin-hadoop3.tar.gz/opt/apache/
ENV SPARK_HOME=/opt/apache/spark
RUN ln -s /opt/apache/spark-3.3.0-bin-hadoop3 $SPARK_HOME
ENV PATH=${LIVY_HOME}/bin:${HADOOP_HOME}/bin:${SPARK_HOME}/bin:$PATH
RUN chown -R admin:admin /opt/apache
WORKDIR $LIVY_HOME
ENTRYPOINT ${LIVY_HOME}/bin/livy-server start;tail -f ${LIVY_HOME}/logs/livy-root-server.out
【注意】hadoop包里的core-site.xml，hdfs-site.xml，yarn-site.xml
开始构建镜像
docker build -t myharbor.com/bigdata/livy:0.8.0 . --no-cache
### 参数解释
# -t：指定镜像名称
# . ：当前目录Dockerfile
# -f：指定Dockerfile路径
# --no-cache：不缓存
# 推送到harbor
docker push myharbor.com/bigdata/livy:0.8.0
2）创建livy chart模板
helm create livy3）修改yaml编排
- livy/values.yaml
replicaCount:1
image:
repository: myharbor.com/bigdata/livy
pullPolicy: IfNotPresent
# Overrides the image tag whose default is the chart appVersion.
tag:"0.8.0"
securityContext:
runAsUser:9999
runAsGroup:9999
privileged:true
service:
type: NodePort
port:8998
nodePort:31998
- livy/templates/configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name:{{ include "livy.fullname" . }}
labels:
{{- include "livy.labels" . | nindent 4}}
data:
livy.conf:|-
livy.spark.master= yarn
livy.spark.deploy-mode = client
livy.environment= production
livy.impersonation.enabled=true
livy.server.csrf_protection.enabled=false
livy.server.port={{.Values.service.port}}
livy.server.session.timeout=3600000
livy.server.recovery.mode= recovery
livy.server.recovery.state-store = filesystem
livy.server.recovery.state-store.url=/tmp/livy
livy.repl.enable-hive-context =true
livy-env.sh:|-
export JAVA_HOME=/opt/apache/jdk1.8.0_212
export HADOOP_HOME=/opt/apache/hadoop
export HADOOP_CONF_DIR=/opt/apache/hadoop/etc/hadoop
export SPARK_HOME=/opt/apache/spark
export SPARK_CONF_DIR=/opt/apache/spark/conf
export LIVY_LOG_DIR=/opt/apache/livy/logs
export LIVY_PID_DIR=/opt/apache/livy/pid-dir
export LIVY_SERVER_JAVA_OPTS="-Xmx512m"
spark-blacklist.conf:|-
spark.master
spark.submit.deployMode
# Disallow overriding the location of Spark cached jars.
spark.yarn.jar
spark.yarn.jars
spark.yarn.archive
# Don't allow users to override the RSC timeout.
livy.rsc.server.idle-timeout
- livy/templates/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name:{{ include "livy.fullname" . }}
labels:
{{- include "livy.labels" . | nindent 4}}
spec:
{{- if not.Values.autoscaling.enabled}}
replicas:{{.Values.replicaCount}}
{{- end }}
selector:
matchLabels:
{{- include "livy.selectorLabels" . | nindent 6}}
template:
metadata:
{{- with .Values.podAnnotations}}
annotations:
{{- toYaml . | nindent 8}}
{{- end }}
labels:
{{- include "livy.selectorLabels" . | nindent 8}}
spec:
{{- with .Values.imagePullSecrets}}
imagePullSecrets:
{{- toYaml . | nindent 8}}
{{- end }}
serviceAccountName:{{ include "livy.serviceAccountName" . }}
securityContext:
{{- toYaml .Values.podSecurityContext| nindent 8}}
containers:
- name:{{.Chart.Name}}
securityContext:
{{- toYaml .Values.securityContext| nindent 12}}
image:"` `.`Values`.`image`.`repository `:{{ .Values.image.tag | default .Chart.AppVersion }}"
imagePullPolicy:{{.Values.image.pullPolicy}}
ports:
- name: http
containerPort:8998
protocol: TCP
livenessProbe:
httpGet:
path:/
port: http
readinessProbe:
httpGet:
path:/
port: http
resources:
{{- toYaml .Values.resources| nindent 12}}
{{- with .Values.securityContext}}
securityContext:
runAsUser:{{.runAsUser}}
runAsGroup:{{.runAsGroup}}
privileged:{{.privileged}}
{{- end }}
volumeMounts:
- name:{{.Release.Name}}-livy-conf
mountPath:/opt/apache/livy/conf/livy.conf
subPath: livy.conf
- name:{{.Release.Name}}-livy-env
mountPath:/opt/apache/livy/conf/livy-env.sh
subPath: livy-env.sh
- name:{{.Release.Name}}-spark-blacklist-conf
mountPath:/opt/apache/livy/conf/spark-blacklist.conf
subPath: spark-blacklist.conf
{{- with .Values.nodeSelector}}
nodeSelector:
{{- toYaml . | nindent 8}}
{{- end }}
{{- with .Values.affinity}}
affinity:
{{- toYaml . | nindent 8}}
{{- end }}
{{- with .Values.tolerations}}
tolerations:
{{- toYaml . | nindent 8}}
{{- end }}
volumes:
- name:{{.Release.Name}}-livy-conf
configMap:
name:{{ include "livy.fullname" . }}
- name:{{.Release.Name}}-livy-env
configMap:
name:{{ include "livy.fullname" . }}
- name:{{.Release.Name}}-spark-blacklist-conf
configMap:
name:{{ include "livy.fullname" . }}
4）开始部署
helm install livy ./livy -n livy --create-namespace
NOTES
NOTES:
1. Get the application URL by running these commands:
export NODE_PORT=$(kubectl get --namespace livy -o jsnotallow="{.spec.ports[0].nodePort}" services livy)
export NODE_IP=$(kubectl get nodes --namespace livy -o jsnotallow="{.items[0].status.addresses[0].address}")
echo http://$NODE_IP:$NODE_PORT
查看
kubectl get pods,svc -n livy -owide
web地址：http://192.168.182.110:31998/ui
5）测试验证
curl -s -XPOST -d '{"file":"hdfs://myhdfs/tmp/spark-examples_2.12-3.3.0.jar","className":"org.apache.spark.examples.SparkPi","name":"SparkPi-test"}'-H "Content-Type: application/json" http://local-168-182-110:31998/batches|python -m json.tool
6）卸载
helm uninstall livy -n livygit地址：https://gitee.com/hadoop-bigdata/livy-on-k8s
文章来源网络，作者：运维，如若转载，请注明出处：https://shuyeidc.com/wp/247648.html<
