HA-Spark集群环境搭建(Standalone模式)

Posted 2021-12-08 广彐水厂

前置准备

CentOS7、jdk1.8、scala-2.11.12、spark-2.4.5、hadoop-2.7.7、zookeeper-3.5.7

想要完成本期视频中所有操作，需要以下准备：

一、集群规划

二、集群配置

2.1 spark-env.sh

[xiaokang@hadoop01 conf]$ cp spark-env.sh.template spark-env.sh

export JAVA_HOME=/opt/moudle/jdk1.8.0_191
export SCALA_HOME=/opt/moudle/scala-2.11.12
# 添加上如下内容：
export SPARK_DAEMON_JAVA_OPTS="-Dspark.deploy.recoveryMode=ZOOKEEPER -Dspark.deploy.zookeeper.url=hadoop01:2181,hadoop02:2181,hadoop03:2181 -Dspark.deploy.zookeeper.dir=/ha-spark"
export SPARK_HISTORY_OPTS="-Dspark.history.ui.port=18080 -Dspark.history.retainedApplications=24 -Dspark.history.fs.logDirectory=hdfs://hadoop01:9000/spark-jobhistory"

2.2 spark-defaults.conf

[xiaokang@hadoop01 conf]$ cp spark-defaults.conf.template spark-defaults.conf

#spark.master                     spark://hadoop01:7077
spark.master                     spark://hadoop01:7077,hadoop02:7077
spark.eventLog.enabled           true
spark.eventLog.dir               hdfs://hadoop01:9000/spark-jobhistory

2.3 slaves

[xiaokang@hadoop01 conf]$ cp slaves.template slaves

hadoop01
hadoop02
hadoop03

2.4 分发

[xiaokang@hadoop01 ~]$ distribution.sh /opt/software/spark-2.4.5

三、启动集群

3.1 启动ha-hadoop集群

[xiaokang@hadoop01 ~]$ ha-hadoop.sh start

3.2 在hadoop01上启动spark集群

# 进入/opt/software/spark-2.4.5/sbin目录并启动集群
[xiaokang@hadoop01 sbin]$ ./start-all.sh

3.3 在hadoop02上启动备Master

# 进入/opt/software/spark-2.4.5/sbin目录并启动备Master
[xiaokang@hadoop02 sbin]$ ./start-master.sh

3.4 在hadoop01上启动任务历史服务器

# 进入/opt/software/spark-2.4.5/sbin目录并启动任务历史服务器
[xiaokang@hadoop01 sbin]$ ./start-history-server.sh

四、查看集群

4.1 jps进程查看

[xiaokang@hadoop01 sbin]$ call-cluster.sh jps
--------hadoop01--------
10784 DFSZKFailoverController
13185 Master
10226 NameNode
13380 HistoryServer
13285 Worker
10902 JobHistoryServer
10024 QuorumPeerMain
10569 JournalNode
10346 DataNode
10989 NodeManager
13470 Jps
--------hadoop02--------
7569 JournalNode
7809 ResourceManager
7714 DFSZKFailoverController
7896 NodeManager
7385 NameNode
9513 Master
7290 QuorumPeerMain
7466 DataNode
9613 Jps
9439 Worker
--------hadoop03--------
8547 Worker
7588 ResourceManager
8613 Jps
7463 JournalNode
7703 NodeManager
7272 QuorumPeerMain
7357 DataNode

4.2 Web UI查看

[xiaokang@hadoop01 sbin]$ cat /opt/software/spark-2.4.5/logs/spark-xiaokang-org.apache.spark.deploy.master.Master-1-hadoop01.out | grep MasterWebUI

20/05/31 08:32:08 INFO MasterWebUI: Bound MasterWebUI to 0.0.0.0, and started at http://hadoop01:8081

通过启动日志可以看到hadoop01的​​MasterWebUI​​的端口号为8081

[xiaokang@hadoop02 sbin]$ cat /opt/software/spark-2.4.5/logs/spark-xiaokang-org.apache.spark.deploy.master.Master-1-hadoop02.out | grep MasterWebUI

20/05/31 08:32:43 INFO MasterWebUI: Bound MasterWebUI to 0.0.0.0, and started at http://hadoop02:8082

通过启动日志可以看到hadoop02的​​MasterWebUI​​的端口号为8082

hadoop01上的任务历史服务器端口号为18080

五、计算 PI (测试高可用)

[xiaokang@hadoop01 ~]$ spark-submit --master spark://hadoop01:7077,hadoop02:7077 --executor-memory 1G --total-executor-cores 8 --executor-cores 2 --class org.apache.spark.examples.SparkPi /opt/software/spark-2.4.5/examples/jars/spark-examples_2.11-2.4.5.jar 10000

​​--executor-memory​​​ 1G 指定每个​​executor​​可用内存为1G

​​--total-executor-cores​​​ 8 指定所有​​executor​​使用的cpu核数为8个

​​--executor-cores​​​ 2 表示每个​​executor​​使用的 cpu 的核数

运行过程中将主Master给kill掉，测试是否高可用

[xiaokang@hadoop01 ~]$ kill -9 13185

杀掉主Master之后，程序还是同样在执行，可以看到hadoop02的​​MasterWebUI​​中状态显示为recovering

最终计算结果如下：

WebUI查看应用执行资源分配情况：