mirror/librenms-librenms-agent
1
0
Fork 0
mirror of https://github.com/librenms/librenms-agent.git synced 2024-05-09 09:54:52 +00:00
Code Releases Activity

Merge pull request #247 from bestlong/patch-1

Browse Source 
add zfs support for freebsd use python 3
This commit is contained in:
Zane C. Bowers-Hadley
2019-08-06 00:08:02 -05:00
committed by GitHub
parent ae3fdedcde ca9b5ad17d
commit 8cae778d9b
1 changed files with 116 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

116
snmp/zfs-freebsd.py Normal file
View File

@@ -0,0 +1,116 @@
#!/usr/local/bin/python3
# FreeNAS 11.1 not support #!/usr/bin/env python3
import json
import subprocess
def percent(numerator, denominator, default=0):
try:
return numerator / denominator * 100
except ZeroDivisionError:
return default
def main(args):
p = subprocess.run(['/sbin/sysctl', '-q', 'kstat.zfs', 'vfs.zfs'], stdout=subprocess.PIPE, universal_newlines=True)
if p.returncode != 0:
return p.returncode
def chomp(line):
bits = [b.strip() for b in line.split(':')]
return bits[0], int(bits[1])
stats = dict(chomp(l) for l in p.stdout.splitlines())
if 'kstat.zfs.misc.arcstats.recycle_miss' not in stats:
stats['kstat.zfs.misc.arcstats.recycle_miss'] = 0
output = dict()
# ARC misc
output['deleted'] = stats['kstat.zfs.misc.arcstats.deleted']
output['evict_skip'] = stats['kstat.zfs.misc.arcstats.evict_skip']
output['mutex_skip'] = stats['kstat.zfs.misc.arcstats.mutex_miss']
output['recycle_miss'] = stats['kstat.zfs.misc.arcstats.recycle_miss']
# ARC size
output['target_size_per'] = stats['kstat.zfs.misc.arcstats.c'] / stats['kstat.zfs.misc.arcstats.c_max'] * 100
output['arc_size_per'] = stats['kstat.zfs.misc.arcstats.size'] / stats['kstat.zfs.misc.arcstats.c_max'] * 100
output['target_size_arat'] = stats['kstat.zfs.misc.arcstats.c'] / stats['kstat.zfs.misc.arcstats.c_max']
output['min_size_per'] = stats['kstat.zfs.misc.arcstats.c_min'] / stats['kstat.zfs.misc.arcstats.c_max'] * 100
output['arc_size'] = stats['kstat.zfs.misc.arcstats.size']
output['target_size_max'] = stats['kstat.zfs.misc.arcstats.c_max']
output['target_size_min'] = stats['kstat.zfs.misc.arcstats.c_min']
output['target_size'] = stats['kstat.zfs.misc.arcstats.c']
# ARC size breakdown
output['mfu_size'] = stats['kstat.zfs.misc.arcstats.size'] - stats['kstat.zfs.misc.arcstats.p']
output['p'] = stats['kstat.zfs.misc.arcstats.p']
output['rec_used_per'] = stats['kstat.zfs.misc.arcstats.p'] / stats['kstat.zfs.misc.arcstats.size'] * 100
output['freq_used_per'] = output['mfu_size'] / stats['kstat.zfs.misc.arcstats.size'] * 100
# ARC misc efficiency stats
output['arc_hits'] = stats['kstat.zfs.misc.arcstats.hits']
output['arc_misses'] = stats['kstat.zfs.misc.arcstats.misses']
output['demand_data_hits'] = stats['kstat.zfs.misc.arcstats.demand_data_hits']
output['demand_data_misses'] = stats['kstat.zfs.misc.arcstats.demand_data_misses']
output['demand_meta_hits'] = stats['kstat.zfs.misc.arcstats.demand_metadata_hits']
output['demand_meta_misses'] = stats['kstat.zfs.misc.arcstats.demand_metadata_misses']
output['mfu_ghost_hits'] = stats['kstat.zfs.misc.arcstats.mfu_ghost_hits']
output['mfu_hits'] = stats['kstat.zfs.misc.arcstats.mfu_hits']
output['mru_ghost_hits'] = stats['kstat.zfs.misc.arcstats.mru_ghost_hits']
output['mru_hits'] = stats['kstat.zfs.misc.arcstats.mru_hits']
output['pre_data_hits'] = stats['kstat.zfs.misc.arcstats.prefetch_data_hits']
output['pre_data_misses'] = stats['kstat.zfs.misc.arcstats.prefetch_data_misses']
output['pre_meta_hits'] = stats['kstat.zfs.misc.arcstats.prefetch_metadata_hits']
output['pre_meta_misses'] = stats['kstat.zfs.misc.arcstats.prefetch_metadata_misses']
output['anon_hits'] = output['arc_hits'] - (output['mfu_hits'] + output['mru_hits'] + output['mfu_ghost_hits'] + output['mru_ghost_hits'])
output['arc_accesses_total'] = output['arc_hits'] + output['arc_misses']
output['demand_data_total'] = output['demand_data_hits'] + output['demand_data_misses']
output['pre_data_total'] = output['pre_data_hits'] + output['pre_data_misses']
output['real_hits'] = output['mfu_hits'] + output['mru_hits']
# ARC efficiency percents
output['cache_hits_per'] = percent(output['arc_hits'], output['arc_accesses_total'])
output['cache_miss_per'] = percent(output['arc_misses'], output['arc_accesses_total'])
output['actual_hit_per'] = percent(output['real_hits'], output['arc_accesses_total'])
output['data_demand_per'] = percent(output['demand_data_hits'], output['demand_data_total'])
output['data_pre_per'] = percent(output['pre_data_hits'], output['pre_data_total'])
output['anon_hits_per'] = percent(output['anon_hits'], output['arc_hits'])
output['mru_per'] = percent(output['mru_hits'], output['arc_hits'])
output['mfu_per'] = percent(output['mfu_hits'], output['arc_hits'])
output['mru_ghost_per'] = percent(output['mru_ghost_hits'], output['arc_hits'])
output['mfu_ghost_per'] = percent(output['mfu_ghost_hits'], output['arc_hits'])
output['demand_hits_per'] = percent(output['demand_data_hits'], output['arc_hits'])
output['pre_hits_per'] = percent(output['pre_data_hits'], output['arc_hits'])
output['meta_hits_per'] = percent(output['demand_meta_hits'], output['arc_hits'])
output['pre_meta_hits_per'] = percent(output['pre_meta_hits'], output['arc_hits'])
output['demand_misses_per'] = percent(output['demand_data_misses'], output['arc_misses'])
output['pre_misses_per'] = percent(output['pre_data_misses'], output['arc_misses'])
output['meta_misses_per'] = percent(output['demand_meta_misses'], output['arc_misses'])
output['pre_meta_misses_per'] = percent(output['pre_meta_misses'], output['arc_misses'])
# pools
p = subprocess.run(['/sbin/zpool', 'list', '-pH'], stdout=subprocess.PIPE, universal_newlines=True)
if p.returncode != 0:
return p.returncode
output['pools'] = []
fields = ['name', 'size', 'alloc', 'free', 'expandsz', 'frag', 'cap', 'dedup']
for l in p.stdout.splitlines():
p = dict(zip(fields, l.split('\t')))
if p['expandsz'] == '-':
p['expandsz'] = 0
p['frag'] = p['frag'].rstrip('%')
if p['frag'] == '-':
p['frag'] = 0
p['dedup'] = p['dedup'].rstrip('x')
output['pools'].append(p)
print(json.dumps(output))
return 0
if __name__ == '__main__':
import sys
sys.exit(main(sys.argv[1:]))