Update spark-env.sh

Author: Ng Hoang Long

spark_configs/spark-env.sh

@@ -44,7 +44,7 @@
 # Options for the daemons used in the standalone deploy mode
 # - SPARK_MASTER_HOST, to bind the master to a different IP address or hostname
 export SPARK_MASTER_PORT=7077
-export SPARK_MASTER_WEBUI_PORT=8081
+export SPARK_MASTER_WEBUI_PORT=8087
 # - SPARK_MASTER_OPTS, to set config properties only for the master (e.g. "-Dx=y")
 # - SPARK_WORKER_CORES, to set the number of cores to use on this machine
 # - SPARK_WORKER_MEMORY, to set how much total memory workers have to give executors (e.g. 1000m, 2g)