spark jobhistory 查看问题

问题：
spark-shell运行命令，action后：
sc.stop()
exit
退出后再到WEB UI上查看：
history查看不了.png

然而：直接到hdfs文件系统中查看是生成了日志的，如：
[hadoop@yun01-nn-01 spark]$ hadoop fs -ls /user/spark/sparkhistory
Found 5 items
-rwxrwx--- 3 hadoop supergroup    11242 2016-06-22 23:59 /user/spark/sparkhistory/app-20160622235553-0001.snappy
-rwxrwx--- 3 hadoop supergroup    8302 2016-06-23 00:11 /user/spark/sparkhistory/app-20160623000742-0000.snappy
-rwxrwx--- 3 hadoop supergroup    3622 2016-06-23 00:23 /user/spark/sparkhistory/app-20160623002043-0000.snappy
-rwxrwx--- 3 hadoop supergroup    8311 2016-06-23 00:34 /user/spark/sparkhistory/app-20160623002431-0001.snappy
-rwxrwx--- 3 hadoop supergroup    8304 2016-06-23 00:46 /user/spark/sparkhistory/app-20160623004355-0000.snappy

配置：
spark-env.sh
export HADOOP_CONF_DIR=$HADOOP_HOME/etc/hadoop
export YARN_CONF_DIR=$HADOOP_HOME/etc/hadoop
export SPARK_LIBARY_PATH=.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib:$HADOOP_HOME/lib/native
export SPARK_MASTER_ID=yun01-nn-01
export SPARK_MASTER_PORT=7077
export SPARK_WORK_CORES=1
export SPARK_WORK_INSTANCES=1
export SPARK_WORK_MEMORY=1g
export SPARK_HISTORY_OPTS="-Dspark.history.fs.logDirectory=hdfs://yun01-nn-01:9000/user/spark/sparkhistory"

spark-defaults.conf:
spark.master                      spark://yun01-nn-01:7077
spark.eventLog.enabled          true
spark.eventLog.dir                hdfs://yun01-nn-01:9000/user/spark/sparkhistory
spark.eventLog.compress          false

求解。