LizardFS

LizardFS is a high performance distributed storage system for storing massive amount of data on commodity hardware. OddEye Agent uses LizardFS's built in tools to expose statistics and send to OddEye servers. You just need to set hostname of target server and chose detalization of metrics.

Install
cd ${OE_AGENT_HOME}/checks_enabled
ln -s ../checks_available/check_lizardfs.py ./
Configure

Configuration parameters of LizardFS check are in ${OE_AGENT_HOME}/bonf/bigdata.ini file

[LizardFS]
host: 127.0.0.1
port: 9421
chunkstats: True
diskstats: True

Host and port parameters points to master node. It's always a good idea to run OddEye Agent on target hosts, so for most of installtions these parameters can stay defaults.

Other parameters enables and disabled detailed statistics of chunk servers, and disks|mountpoits

Restart
${OE_AGENT_HOME}/oddeye.sh restart
Provides

Basic Stats

Name Description Type Unit
lizardfs_memory_uage Memory used by LizardFS gauge Bytes
lizardfs_total_space Total space for LizardFS gauge Bytes
lizardfs_available_space Available space of LizardFS gauge Bytes
lizardfs_trash_space Space used by trashed files gauge Bytes
lizardfs_trash_files Amount of trashed files gauge Integer
lizardfs_reserved_space LizardFS reserved disk space gauge Bytes
lizardfs_reserved_files Amount of files reserved for LizardFS gauge Integer
lizardfs_fs_objects Amount of file system objects reserved for LizardFS gauge Integer
lizardfs_directories Amount of directories in LizardFS gauge Integer
lizardfs_files Amount of files in LizardFS gauge Integer
lizardfs_chunks Amount of LizardFS chunks gauge Integer
lizardfs_chunk_copies Amount of copies of LizardFS chunks gauge Integer

Chunserver Stats

Name Description Type Unit
lizardfs_chunksrv_total_space Total space of particular chunk server gauge Bytes
lizardfs_chunksrv_used_space Used space on particular chunk server gauge Bytes
lizardfs_chunksrv_chunks_mfr Chunks marked for deletion on chunk server gauge Bytes
lizardfs_chunksrv_space_mfr Space marked for deletion on chunk server gauge Bytes
lizardfs_chunksrv_errors Errors on chunk server gauge Integer

Disks and mountpoints

Name Description Type Unit
lizardfs_disk_total_space Total disk space of LizardFS by chunk server and mount point gauge Bytes
lizardfs_disk_used_space Used disk space of LizardFS by chunk server and mount point gauge Bytes
lizardfs_disk_chunks Amount of disk chunks by chunk server and mount point gauge Integer
lizardfs_read_bytes Reads per minute by chunk server and mount point rate Bytes
lizardfs_write_bytes Writes per minute by chunk server and mount point rate Bytes
lizardfs_max_read_time Max read time by chunk server and mount point curent Microsecond
lizardfs_max_write_time Max write time by chunk server and mount point curent Microsecond
lizardfs_max_fsync_time Max file system sync time by chunk server and mount point curent Microsecond
lizardfs_read_ops Read operations per minute by chunk server and mount point rate Number
lizardfs_write_ops Write operations pre minute by chunk server and mount point rate Number
lizardfs_fsync_ops File system sync operation by chunk server and mount point rate Number

There isn no necessity to run check_lizardfs.py on all nodes of LizardFS of cluster, statistics from all nodes can be collected from single location.