Java Applications and Servers

check_hadoop_jobtrackers

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Description:

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

Compatible With

  • Nagios 3.x

Owner

Jon Ottar Runde

Website

http://www.rundeconsult.no

Download URL

http://www.rundeconsult.no/?p=66

License

GPL

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Project Files
FileDescription
check_hadoop_jobtracker.pl
Project Notes
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, jru@rundeconsult.no See http://www.rundeconsult.no/?p=66 for updated versions and documentation Usage: -w -c -H -p [-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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