Spark(三): 安装与配置
目录:
- Spark集群安装
- 参数配置
- 测试验证
Spark集群安装:
- 在ambari -service 界面选择 “add Service",如图:
- 在弹出界面选中spark服务,如图:
- "下一步”,分配host节点,因为前期我们已经安装了hadoop 和hbase集群,按向导分配 spark history Server即可
- 分配client,如下图:
- 发布安装,如下正确状态
参数配置:
- 安装完成后,重启hdfs 和 yarn
- 查看 spark服务,spark thrift server 未正常启动,日志如下:
16/08/30 14:13:25 INFO Client: Verifying our application has not requested more than the maximum memory capability of the cluster (512 MB per container) 16/08/30 14:13:25 ERROR SparkContext: Error initializing SparkContext. java.lang.IllegalArgumentException: Required executor memory (1024+384 MB) is above the max threshold (512 MB) of this cluster! Please check the values of 'yarn.scheduler.maximum-allocation-mb' and/or 'yarn.nodemanager.resource.memory-mb'. at org.apache.spark.deploy.yarn.Client.verifyClusterResources(Client.scala:284) at org.apache.spark.deploy.yarn.Client.submitApplication(Client.scala:140) at org.apache.spark.scheduler.cluster.YarnClientSchedulerBackend.start(YarnClientSchedulerBackend.scala:56) at org.apache.spark.scheduler.TaskSchedulerImpl.start(TaskSchedulerImpl.scala:144) at org.apache.spark.SparkContext.<init>(SparkContext.scala:530) at org.apache.spark.sql.hive.thriftserver.SparkSQLEnv$.init(SparkSQLEnv.scala:56) at org.apache.spark.sql.hive.thriftserver.HiveThriftServer2$.main(HiveThriftServer2.scala:76) at org.apache.spark.sql.hive.thriftserver.HiveThriftServer2.main(HiveThriftServer2.scala) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:731) at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:181) at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:206) at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:121) at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
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解决方案:调整yarn相关参数配置 yarn.nodemanager.resource.memory-mb、yarn.scheduler.maximum-allocation-mb
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yarn.nodemanager.resource.memory-mb
表示该节点上YARN可使用的物理内存总量,默认是8192(MB),注意,我本机的hdp2-3内存为4G,默认设置的值是512M,调整为如下图大小
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yarn.scheduler.maximum-allocation-mb
单个任务可申请的最多物理内存量,默认是8192(MB)。
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保存配置,重启依赖该配置的服务,正常后如下图:
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测试验证:
- 在任一安装spark client机器(hdp4),将目录切换至 spark 安装目录的 bin目录下
- 命令: ./spark-sql
- sql命令: show database; 如下图
- 查看历史记录,如下: