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check_hadoop_hdfs_httpfs.pl (Advanced Nagios Plugins Collection)

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  • Nagios 1.x
  • Nagios 2.x
  • Nagios 3.x
  • Nagios 4.x
  • Nagios XI
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Checks HDFS files/directories or writable via WebHDFS API or HttpFS server
Part of the Advanced Nagios Plugins Collection.

Download it here:

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

./check_hadoop_hdfs_httpfs.pl --help

Nagios Plugin to check HDFS files/directories or writable via WebHDFS API or HttpFS server

Checks:

- File/directory existence and one or more of the following:
- type: file or directory
- owner/group
- permissions
- size / empty
- block size
- replication factor
- last accessed time
- last modified time

OR

- HDFS writable - writes a small canary file to hdfs:///tmp to check that HDFS is fully available and not in Safe mode (this means than enough DataNodes have checked in after startup)

Tested on CDH 4.5


usage: check_hadoop_hdfs_httpfs.pl [ options ]

-H --host Hadoop HttpFS Server host ($HADOOP_HTTPFS_HOST, $HADOOP_HOST, $HOST)
-P --port Hadoop HttpFS Server port ($HADOOP_HTTPFS_PORT, $HADOOP_PORT, $PORT, default: 14000)
-w --write Write unique canary file to hdfs:///tmp to check HDFS is writable and not in Safe mode
-p --path File or directory to check exists in Hadoop HDFS
-T --type 'FILE' or 'DIRECTORY' (default: 'FILE')
-o --owner Owner name
-g --group Group name
-e --permission Permission octal mode
-Z --zero Additional check that file is empty
-S --size Minimum size of file
-R --replication Replication factor
-a --last-accessed Last-accessed time maximum in seconds
-m --last-modified Last-modified time maximum in seconds
-B --blockSize Blocksize to expect
-t --timeout Timeout in secs (default: 10)
-v --verbose Verbose mode (-v, -vv, -vvv ...)
-h --help Print description and usage options
-V --version Print version and exit