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Improved script to check apache hadoop jobtracers. Will parse the admin-webpage, and check number of trackers, blacklisted nodes, heap size and more. Will output performancedata for nodes, blacklisted nodes, running jobs (map and reduce), capacity jobs (map/reduce) and heap size (used/max)
Current Version
0.3
Last Release Date
2011-11-27
Owner
Jon Ottar Runde
Website
http://www.rundeconsult.no
Download URL
http://www.rundeconsult.no/?p=66
License
GPL
Compatible With
I made this little script, to parse output from the adminpage, normally found at http://jobtracker.company.com:50030/jobtracker.jsp It will check for status, and number of machines, and also give performanceoutput. Nagios-config would look something like this;
define service{ use generic_service service_description Jobtracker check_command check_jobtracker hosts jobtracker.company.com }
define command{ command_name check_jobtracker command_line $USER1$/check_hadoop_jobtracker.pl -H jobtracker.company.com -w 50 -c 40 -b 1 -p 50030 }
Plugin takes these options:
check_hadoop_jobtracker v. 0.3 Copyright (c) 2011 Jon Ottar Runde, [email protected] See http://www.rundeconsult.no/?p=66 for updated versions and documentation Usage: -w <warn> -c <crit> -H <Hostname> -p <Port> [-v version] [-h help]
Checks several Hadoop hdfs-parameters -H (--Host) -p (--Port) -w (--warning) = warning limit number of machines -c (--critical) = critical limit number of machines (w > c ) -b (--blacklist) = Number of blacklisted nodes for CRITICAL warning (default=1) -h (--help) -v (--version)
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