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check_hadoop_datanodes_block_balance.pl (Advanced Nagios Plugins Collection)

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Compatible With
  • Nagios 1.x
  • Nagios 2.x
  • Nagios 3.x
  • Nagios XI
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Checks % block imbalance across all datanodes in a Hadoop cluster
Part of the Advanced Nagios Plugins Collection.

Download it here:

https://github.com/harisekhon/nagios-plugins

./check_hadoop_datanodes_block_balance.pl -H namenode -w 5 -c 10
CRITICAL: 48.08% block imbalance across 41 datanodes (48.08>10, w=5/c=10) | block_imbalance=48.08%;5;10; num_datanodes=41 max_blocks=366753 min_blocks=247671