Projects

Check the number of RegionServers that are dead or alive using HBase Stargate Rest API (Thrift API doesn't support this information at time of writing)

Checks HBase JMX metrics from HBase Masters & RegionServers

Checks HDFS replication of blocks

Various checks against the Hadoop HDFS Cluster via the Namenode JSP pages including NameNode Heap usage

Checks metrics from a given Hadoop daemon's JMX /metrics page, supports JobTracker, TaskTracker, HBase Master & RegionServer

Detects which MapReduce nodes aren't active in the JobTracker if given a node list - checks optional thresholds for the maximum number of missing nodes…

Various checks against a Hadoop MapReduce cluster by querying the JobTracker

Checks % HDFS space used. Based off an earlier plugin I wrote in 2010 that we used in production for over 2 years before replacing…

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