Test Script for ucarp+nfs

ucarp-nfs-test.py

#!/usr/local/bin/python2.7

import os
import subprocess
import sys
import time

path = '/glusterfs/test.dat'
addresses = [ '10.0.0.1', '10.0.0.2', '10.0.0.127' ]

null = open('/dev/null', 'w')
pinger = {}
for address in addresses:
  pinger[address] = subprocess.Popen(['ping', address], stdout=null, stderr=null)

index = 0
try:
  f = open(path, 'w')
  while True:
    subprocess.call(['clear'])
    subprocess.call(['date'])
    for address in addresses:
      subprocess.call(['arp', address])
    f.write("data %d\n" % index)
    index = index + 1
    f.flush()
    os.fsync(f)
    time.sleep(0.5)
finally:
  for process in pinger.values():
    process.terminate()
  f.close()