check-hdfs-stat

check hdfs stat for nagios ex.

usage:check_hdfs_stat.rb [options] -w warnning -c critical,-h for help

-d                               check hdfs disk urate
-u                               check Under replicated blocks num
-r                               check Blocks with corrupt replicas num
-m                               check Missing blocks num
-l                               check Live datanodes num
-w, --warnning warn              Pass in warnning value
-c, --critical crit              Pass in critical value