mirror of
https://github.com/tahoe-lafs/tahoe-lafs.git
synced 2024-12-23 14:52:26 +00:00
62 lines
2.0 KiB
Python
62 lines
2.0 KiB
Python
#! /usr/bin/python
|
|
|
|
# This is a munin plugin to track the average number of shares per file in
|
|
# each node's StorageServer. If this number is 100, that suggests there is
|
|
# only a single node in the entire mesh. If the number is 2, that suggests
|
|
# that there are 50 nodes in the entire mesh. If the number is 1, that
|
|
# suggests that there are >= 100 nodes in the entire mesh. (if there were a
|
|
# million nodes, this one node would only see a single share per file, so the
|
|
# number of shares-per-file will never be less than 1).
|
|
|
|
# Copy this plugin into /etc/munun/plugins/tahoe-sharesperfile and then put
|
|
# the following in your /etc/munin/plugin-conf.d/foo file to let it know
|
|
# where to find the basedirectory for each node:
|
|
#
|
|
# [tahoe-sharesperfile]
|
|
# env.basedir_NODE1 /path/to/node1
|
|
# env.basedir_NODE2 /path/to/node2
|
|
# env.basedir_NODE3 /path/to/node3
|
|
#
|
|
|
|
import os, sys
|
|
|
|
nodedirs = []
|
|
for k,v in os.environ.items():
|
|
if k.startswith("basedir_"):
|
|
nodename = k[len("basedir_"):]
|
|
nodedirs.append( (nodename, v) )
|
|
nodedirs.sort()
|
|
|
|
configinfo = \
|
|
"""graph_title Allmydata Tahoe Shares Per File
|
|
graph_vlabel shares per file
|
|
graph_category tahoe
|
|
graph_info This graph shows the number of shares present for each file hosted by this node's StorageServer
|
|
"""
|
|
|
|
for nodename, basedir in nodedirs:
|
|
configinfo += "%s.label %s\n" % (nodename, nodename)
|
|
configinfo += "%s.draw LINE2\n" % (nodename,)
|
|
|
|
|
|
if len(sys.argv) > 1:
|
|
if sys.argv[1] == "config":
|
|
print configinfo.rstrip()
|
|
sys.exit(0)
|
|
|
|
for nodename, basedir in nodedirs:
|
|
files = 0
|
|
shares = 0
|
|
for f in os.listdir(os.path.join(basedir, "storage", "shares")):
|
|
if f == "incoming":
|
|
continue
|
|
files += 1
|
|
filedir = os.path.join(basedir, "storage", "shares", f)
|
|
shares += len(os.listdir(filedir))
|
|
if files:
|
|
shares_per_file = 1.0 * shares / files
|
|
else:
|
|
shares_per_file = 0.0
|
|
print "%s.value %.1f" % (nodename, shares_per_file)
|
|
|