如何查找sparkR主站点？

Question

我安装了sparkR单机版并运行它。我确实得到了spark上下文，但我找不到主站点(localhost:8080)对我不起作用。是否有单独的命令来启动主站点？

Loading required package: SparkR
[SparkR] Initializing with classpath         
/Library/Frameworks/R.framework/Versions/3.1/Resources/library/SparkR/lib/SparkR/sparkr-assembly-0.1.jar

Launching java with command  java   -Xmx512m -cp 
'/Library/Frameworks/R.framework/Versions/3.1/Resources/library/SparkR/lib/SparkR/
sparkr-assembly-0.1.jar:' edu.berkeley.cs.amplab.sparkr.SparkRBackend    
/var/folders/ln/tcj6cdjd6ss5bq460m7rxwh8fq9k4s/T//RtmpQXn4Wb/backend_portd35957a1c484 
15/03/25 01:18:02 INFO Slf4jLogger: Slf4jLogger started

 Welcome to SparkR!
 Spark context is available as sc
 > 

Answer 1

默认情况下，SparkR在Spark master设置为"local“时运行。在这种情况下，没有主UI，但是您应该能够在localhost:4040处看到应用程序UI。