check_hadoop_hdfs_httpfs.pl (Advanced Nagios Plugins Collection)

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

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