将hbase的 export HBASE_OPTS="-ea -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode" 改为
export HBASE_OPTS="-ea -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:CMSInitiatingOccupancyFraction=70"
导致导出器导出数据的速度变慢