Plugins

Various HDFS checks based on dfsadmin -report, unified version of various HDFS plugins I've written over the years

Checks number of available datanodes and if there are any dead datanodes

Check given Hadoop metric(s) via Cloudera Manager Rest API

Checks HDFS Space Balance used across datanodes is within thresholds. Lists the nodes out of balance in verbose mode

Check a Git working copy is in the right branch. Primarily written for puppetmasters to make sure prod and staging environment dirs had the right…

Counts the number of total allocated file descriptors on a system. Designed to be called over NRPE

Checks DNS records including A, NS and MX records for domains which the standard check_dns Nagios plugin can't do

Checks the number of context switches on the a Linux server. Designed to be called over NRPE

Checks all instances of a cluster are the same version. Uses Nagios macros containing output of host specific checks showing the version strings in their…

Part of the Advanced Nagios Plugins Collection, download it here: https://github.com/harisekhon/nagios-plugins ./check_cluster_perfdata.pl --help Nagios Plugin to aggregate perfdata across all instances of a service check,…

Validates user accounts are available (eg LDAP) with no duplicate UID/GIDs

A plugin which alerts when ever there are too few apache slots free, or, when too many slots are in the R state, which is…