spark on yarn提交任务时一直显示ACCEPTED

Question

spark on yarn提交任务时一直显示ACCEPTED，过一个小时后就会出现任务失败，但在提交时shell终端显示的日志并没有报错，logs文件夹中也没有日志产生。

任务提交命令为

 bin/spark-submit --class org.apache.spark.examples.JavaWordCount
    --master yarn-client
    --num-executors 25
    --executor-memory 1g
    --executor-cores 1
    lib/spark-examples-1.0.1-hadoop2.2.0.jar
    hdfs://192.168.1.11:9000/test

spark-env.sh配置如下：

export SPARK_JAR=hdfs://192.168.1.11:9000/test1/spark-assembly-1.0.1-hadoop2.2.0.jar
export SPARK_YARN_APP_JAR=hdfs://192.168.1.11:9000/test1/spark-examples-1.0.1-hadoop2.2.0.jar
export HADOOP_CONF_DIR=/hadoop/etc/hadoop
export SPARK_EXECUTOR_INSTANCES=1000
export SPARK_EXECUTOR_CORES=1
export SPARK_EXECUTOR_MEMORY=10000M
export SPARK_DRIVER_MEMORY=20000M
export SPARK_YARN_APP_NAME=spark