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check Hadoop datanodes

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Current Version
1.0
Last Release Date
2010-09-29
Compatible With
  • Nagios 2.x
Hits
93642
Files:
FileDescription
check_hadoop_datanode.plcheck_hadoop_datanode.pl
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Perl script to check the number of Hadoop Datanode alive
Perl script to check the number of Hadoop datanodes alive

useage:

Nagios Configuration
services.cfg

define service {
use generic-service
host_name [namenode's host]
service_description check_remote_datanode
contact_groups admins
check_command check_remote_datanode!15!13
}

above example says that:
check_remote_datanode returns
1 ("WARNING") if the number of datanodes alive is equal or less than 15
2 ("CRITICAL") if the number of datanodes alive is equal or less than 13
0 ("OK") if the number of datanodes alive is more than 15

commands.cfg
define command {
command_name check_remote_datanode
command_line /usr/local/bin/check_hadoop_datanode.pl $HOSTADDRESS$ $ARG1$ $ARG2$
}