原文链接:Spark集群基于Zookeeper的HA搭建部署笔记
1.环境介绍
(1)操作系统RHEL6.2-64
(2)两个节点:spark1(192.168.232.147),spark2(192.168.232.152)
(3)两个节点上都装好了Hadoop 2.2集群
2.安装Zookeeper
(1)下载Zookeeper:http://apache.claz.org/zookeeper ... keeper-3.4.5.tar.gz
(2)解压到/root/install/目录下
(3)创建两个目录,一个是数据目录,一个日志目录
(4)配置:进到conf目录下,把zoo_sample.cfg修改成zoo.cfg(这一步是必须的,否则zookeeper不认识zoo_sample.cfg),并添加如下内容
- dataDir=/root/install/zookeeper-3.4.5/data
- dataLogDir=/root/install/zookeeper-3.4.5/logs
- server.1=spark1:2888:3888
- server.2=spark2:2888:3888
复制代码
(5)在/root/install/zookeeper-3.4.5/data目录下创建myid文件,并在里面写1
- cd /root/install/zookeeper-3.4.5/data
- echo 1>myid
复制代码
(6)把/root/install/zookeeper-3.4.5整个目录复制到其他节点
- scp -r /root/install/zookeeper-3.4.5 root@spark2:/root/install/
复制代码
(7)登录到spark2节点,修改myid文件里的值,将其修改为2
- cd /root/install/zookeeper-3.4.5/data
- echo 2>myid
复制代码
(8)在spark1,spark2两个节点上分别启动zookeeper
- cd /root/install/zookeeper-3.4.5
- bin/zkServer.sh start
复制代码
(9)查看进程进否成在
- [root@spark2 zookeeper-3.4.5]# bin/zkServer.sh start
- JMX enabled by default
- Using config: /root/install/zookeeper-3.4.5/bin/../conf/zoo.cfg
- Starting zookeeper ... STARTED
- [root@spark2 zookeeper-3.4.5]# jps
- 2490 Jps
- 2479 QuorumPeerMain
复制代码
3.配置Spark的HA
(1)进到spark的配置目录,在spark-env.sh修改如下
- export
SPARK_DAEMON_JAVA_OPTS="-Dspark.deploy.recoveryMode=ZOOKEEPER
-Dspark.deploy.zookeeper.url=spark1:2181,spark2:2181
-Dspark.deploy.zookeeper.dir=/spark" - export JAVA_HOME=/root/install/jdk1.7.0_21
- #export SPARK_MASTER_IP=spark1
- #export SPARK_MASTER_PORT=7077
- export SPARK_WORKER_CORES=1
- export SPARK_WORKER_INSTANCES=1
- export SPARK_WORKER_MEMORY=1g
复制代码
(2)把这个配置文件分发到各个节点上去
- scp spark-env.sh root@spark2:/root/install/spark-1.0/conf/
复制代码
(3)启动spark集群
- [root@spark1 spark-1.0]# sbin/start-all.sh
- starting org.apache.spark.deploy.master.Master, logging to
/root/install/spark-1.0/sbin/../logs/spark-root-org.apache.spark.deploy.master.Master-1-spark1.out - spark1: starting org.apache.spark.deploy.worker.Worker, logging
to
/root/install/spark-1.0/sbin/../logs/spark-root-org.apache.spark.deploy.worker.Worker-1-spark1.out - spark2: starting org.apache.spark.deploy.worker.Worker, logging
to
/root/install/spark-1.0/sbin/../logs/spark-root-org.apache.spark.deploy.worker.Worker-1-spark2.out
复制代码
(4)进到spark2(192.168.232.152)节点,把start-master.sh 启动,当spark1(192.168.232.147)挂掉时,spark2顶替当master
- [root@spark2 spark-1.0]# sbin/start-master.sh
- starting org.apache.spark.deploy.master.Master, logging to
/root/install/spark-1.0/sbin/../logs/spark-root-org.apache.spark.deploy.master.Master-1-spark2.out
复制代码
(5)查看spark1和spark2上运行的哪些进程
- [root@spark1 spark-1.0]# jps
- 5797 Worker
- 5676 Master
- 6287 Jps
- 2602 QuorumPeerMain
- [root@spark2 spark-1.0]# jps
- 2479 QuorumPeerMain
- 5750 Jps
- 5534 Worker
- 5635 Master
复制代码
4.测试HA是否生效
(1)先查看一下两个节点的运行情况,现在spark1运行了master,spark2是待命状态
(2)在spark1上把master服务停掉
- [root@spark1 spark-1.0]# sbin/stop-master.sh
- stopping org.apache.spark.deploy.master.Master
- [root@spark1 spark-1.0]# jps
- 5797 Worker
- 6373 Jps
- 2602 QuorumPeerMain
复制代码
(3)用浏览器访问master的8080端口,看是否还活着。以下可以看出,master已经挂掉
(4)再用浏览器访问查看spark2的状态,从下图看出,spark2已经被切换当master了