Java Applications and Servers

check_hadoop_hdfs

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Description:

Extended check for Apache Hadoop hdfs.
Checks for dead nodes, unreplicated blocks, full hdfs datastore, and supports performancegraphing of these and several more things

Current Version

0.3

Last Release Date

2011-11-28

Compatible With

  • Nagios 3.x

Owner

Jon Ottar Runde

Website

http://www.rundeconsult.no

Download URL

http://www.rundeconsult.no/?p=38

License

GPL

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Project Files
FileDescription
check_hadoop_hdfs.txt
Project Notes
This is a test to check status of hdfs in a hadoop cluster. The test uses the Hadoop hdfs admin web page, normally found at; http://hdfs-namenode:50070/dfshealth.jsp I am just parsing output from this webpage using (bad) regexps. Requires the nagios perl modules, utils.pm Tested with hadoop 0.20.2 Gives performancedata for unreplicated blocks, data in hdfs, nodes OK/Dead and number of files/directories/blocks in the hdfs. Usage: check_hadoop.pl -w -c -x -u -H -p [-v version] [-h help] Checks several Hadoop hdfs-parameters -H (–Host) -p (–Port) -w (–warning) = warning for DFS Usage -c (–critical) = critical limit for DFS Usage (w < c ) -x (–unreplicatedwarn) = Warning limit for Unreplicated blocks -u (–unreplicatedcritical) = Error limit for Unreplicated blocks -h (–help) -v (–version) Example Nagios-config define service{ use generic_service service_description Hadoop_Extended Check check_command check_hadoop_extended hosts namenode.company.com } define command{ command_name check_hadoop_extended command_line $USER1$/check_hadoop.pl -H namenode.company.com -p 50070 -w 5 -c 10 -x 100 -u 1000 }
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