Spark 在Hadoop HA下配置HistoryServer问题

我的Spark机群是部署在Yarn上的，因为之前Yarn的部署只是简单的完全分布式，但是后来升级到HA模式，一个主NN，一个备NN，那么Spark HistoryServer的配置也需要相应的做修改，因为不做修改会报错

Exception in thread "main" java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at org.apache.spark.deploy.history.HistoryServer$.main(HistoryServer.scala:184)
    at org.apache.spark.deploy.history.HistoryServer.main(HistoryServer.scala)
Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.ipc.StandbyException): Operation category READ is not supported in state standby
    at org.apache.hadoop.hdfs.server.namenode.ha.StandbyState.checkOperation(StandbyState.java:87)
    at org.apache.hadoop.hdfs.server.namenode.NameNode$NameNodeHAContext.checkOperation(NameNode.java:1719)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkOperation(FSNamesystem.java:1350)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getFileInfo(FSNamesystem.java:4132)
    at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getFileInfo(NameNodeRpcServer.java:838)
    at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getFileInfo(ClientNamenodeProtocolServerSideTranslatorPB.java:821)

1 非Hadoop HA下Spark HistoryServer配置

1.1 配置spark-defalut.conf

spark.eventLog.enabled             true
spark.eventLog.dir                 hdfs://1421-0002:9000/spark/sparklogs 
spark.yarn.historyServer.address   1421-0002:18080 
spark.serializer                   org.apache.spark.serializer.KryoSerializer 
spark.executor.instances           4

其中配置了日志文件存储的HDFS的路径，还有Spark history server的地址

1.2 配置spark-env.sh

#指定logDirectory,在start-history-server.sh时就无需再显示的指定路径
export SPARK_HISTORY_OPTS="-Dspark.history.retainedApplications=10 -Dspark.history.fs.logDirectory=hdfs://1421-0002:9000/spark/sparklogs"

其中指定了日志文件存储的HDFS路径，那么每次启动就不需要加这个参数了

1.3 启动Spark History Server

start-history-server.sh 

2 Hadoop HA下，Spark HistoryServer配置

2.1 修改spark-env.sh

#指定logDirectory,在start-history-server.sh时就无需再显示的指定路径
export SPARK_HISTORY_OPTS="-Dspark.history.retainedApplications=10 -Dspark.history.fs.logDirectory=hdfs://hadoop-cluster/spark/sparklogs"

这里将HDFS的路径修改了，因为之前只有一个NN，HA的情况下，指定了两个，所以将1421-0002:9000替换成hadoop-cluster（hadoop/etc/hadoop/hdfs-site.xml 中dfs.nameservices配置的值），不需要指定端口