如何为独立集群非hdfs模式启用火花历史记录服务器

Question

我已经在独立模式下按照http://paxcel.net/blog/how-to-setup-apache-spark-standalone-cluster-on-multiple-machine/设置了Spark2.1.1集群(1主2从站)。我在机器上没有预先的Hadoop设置。我想启动火花历史服务器。我的操作如下：

roshan@bolt:~/spark/spark_home/sbin$ ./start-history-server.sh

在火花违约中，如果我设置如下：

spark.eventLog.enabled           true

但是由于错误，它失败了：

7/06/29 22:59:03 INFO SecurityManager: SecurityManager: authentication disabled; ui acls disabled; users  with view permissions: Set(roshan); groups with view permissions: Set(); users  with modify permissions: Set(roshan); groups with modify permissions: Set()
17/06/29 22:59:03 INFO FsHistoryProvider: History server ui acls disabled; users with admin permissions: ; groups with admin permissions
Exception in thread "main" java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.apache.spark.deploy.history.HistoryServer$.main(HistoryServer.scala:278)
    at org.apache.spark.deploy.history.HistoryServer.main(HistoryServer.scala)
Caused by: java.io.FileNotFoundException: Log directory specified does not exist: file:/tmp/spark-events Did you configure the correct one through spark.history.fs.logDirectory?
    at org.apache.spark.deploy.history.FsHistoryProvider.org$apache$spark$deploy$history$FsHistoryProvider$$startPolling(FsHistoryProvider.scala:214)

我应该设置为spark.history.fs.logDirectory和spark.eventLog.dir

更新1:

spark.eventLog.enabled           true
spark.history.fs.logDirectory   file:////home/roshan/spark/spark_home/logs
spark.eventLog.dir               file:////home/roshan/spark/spark_home/logs

但我总是会犯这个错误：

java.lang.IllegalArgumentException: Codec [1] is not available. Consider setting spark.io.compression.codec=snappy at org.apache.spark.io.Co

Answer 1

默认情况下，spark将file:/tmp/spark-events定义为历史服务器的日志目录，您的日志清楚地表明没有配置spark.history.fs.logDirectory。

首先，您需要在/tmp中创建spark文件夹(这不是一个好主意，因为每次重新启动计算机时都会刷新/tmp )，然后在spark-defaults.conf中添加指向该目录的spark.history.fs.logDirectory。但我建议您创建另一个文件夹，该文件夹可以让用户访问并更新星火-defaults.conf文件。

您需要在spark-defaults.conf文件中再定义两个变量

spark.eventLog.dir              file:path to where you want to store your logs
spark.history.fs.logDirectory   file:same path as above

假设您想要存储在/opt/火花事件中，星火用户可以访问星火-defaults.conf中的上述参数。

spark.eventLog.enabled          true
spark.eventLog.dir              file:/opt/spark-events
spark.history.fs.logDirectory   file:/opt/spark-events

您可以在监测和仪表中找到更多信息。