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#!/usr/bin/python
import sys
import os
import re
import tempfile
import subprocess
from multiprocessing import Pool
import time
from optparse import OptionParser
slave_dict = {}
master_res = ''
def get_arequal_checksum(me, mnt):
global slave_dict
master_cmd = ['./tests/utils/arequal-checksum', '-p', mnt]
print "Calculating "+me+" checksum ..."
print ""
p = subprocess.Popen(master_cmd, stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
ret = p.wait()
stdout, stderr = p.communicate()
if ret:
print "Failed to get the checksum of " + me + " with following error"
print stderr
return 1
else:
return stdout
def get_file_count(me, mnt):
global slave_dict
master_cmd = ['find ' + mnt + ' |wc -l']
print "Calculating " + me + " files ..."
print ""
p = subprocess.Popen(master_cmd, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, shell=True)
ret = p.wait()
stdout, stderr = p.communicate()
if ret:
print "Failed to get the count of files in " + me
+ " with following error"
print stderr
return 1
else:
return stdout.strip()
def compare_checksum(master_mnt, slave_dict):
proc = len(slave_dict)+1
pool = Pool(processes=proc)
master_res = pool.apply_async(get_arequal_checksum, args=("master",
master_mnt))
results = [(slave, pool.apply_async(get_arequal_checksum,
args=(slave_dict[slave]["vol"],
slave_dict[slave]["mnt"])))
for slave in slave_dict]
pool.close()
pool.join()
for slave, result in results:
slave_dict[slave]["res"] = result.get()
# exception: OSError
master_res = master_res.get()
print "arequal-checksum of master is : \n %s" % master_res
for slave in slave_dict:
print "arequal-checksum of geo_rep_slave %s: \n %s" % (
slave_dict[slave]["vol"], slave_dict[slave]["res"])
master_files, master_total = re.findall('Total[\s]+:\s(\w+)', master_res)
master_reg_meta, master_reg = re.findall('Regular files[\s]+:\s(\w+)',
master_res)[1:]
master_dir_meta, master_dir = re.findall('Directories[\s]+:\s(\w+)',
master_res)[1:]
ret = 0
for slave in slave_dict:
slave_dict[slave]["files"], slave_dict[slave]["total"] = re.findall(
'Total[\s]+:\s(\w+)', slave_dict[slave]["res"])
slave_dict[slave]["reg_meta"], slave_dict[slave]["reg"] = re.findall(
'Regular files[\s]+:\s(\w+)', slave_dict[slave]["res"])[1:]
slave_dict[slave]["dir_meta"], slave_dict[slave]["dir"] = re.findall(
'Directories[\s]+:\s(\w+)', slave_dict[slave]["res"])[1:]
if master_reg_meta != slave_dict[slave]["reg_meta"]:
print ("Meta data checksum for regular files doesn't match " +
"between master and "+slave_dict[slave]["vol"])
ret = 67
if master_dir_meta != slave_dict[slave]["dir_meta"]:
print ("Meta data checksum for directories doesn't match " +
"between master and "+slave_dict[slave]["vol"])
ret = 68
if master_files != slave_dict[slave]["files"]:
print ("Failed to sync all the files from master to " +
slave_dict[slave]["vol"])
ret = 1
if master_total != slave_dict[slave]["total"]:
if master_reg != slave_dict[slave]["reg"]:
print ("Checksum for regular files doesn't match " +
"between master and "+slave_dict[slave]["vol"])
ret = 1
elif master_dir != slave_dict[slave]["dir"]:
print ("Checksum for directories doesn't match between " +
"master and "+slave_dict[slave]["vol"])
ret = 1
else:
print ("Checksum for symlinks or others doesn't match " +
"between master and "+slave_dict[slave]["vol"])
ret = 1
if ret is 0:
print ("Successfully synced all the files from master " +
"to the "+slave_dict[slave]["vol"])
return ret
def compare_filecount(master_mnt, slave_dict):
proc = len(slave_dict)+1
pool = Pool(processes=proc)
master_res = pool.apply_async(get_file_count, args=("master", master_mnt))
results = [(slave, pool.apply_async(get_file_count,
args=(slave_dict[slave]["vol"],
slave_dict[slave]["mnt"])))
for slave in slave_dict]
pool.close()
pool.join()
for slave, result in results:
slave_dict[slave]["res"] = result.get()
master_res = master_res.get()
ret = 0
for slave in slave_dict:
if not master_res == slave_dict[slave]["res"]:
print ("files count between master and " +
slave_dict[slave]["vol"]+" doesn't match yet")
ret = 1
return ret
def parse_url(url):
match = re.search(r'([\w - _ @ \.]+)::([\w - _ @ \.]+)', url)
if match:
node = match.group(1)
vol = match.group(2)
else:
print 'given url is not a valid.'
sys.exit(1)
return node, vol
def cleanup(master_mnt, slave_dict):
try:
os.system("umount %s" % (master_mnt))
except:
print("Failed to unmount the master volume")
for slave in slave_dict:
try:
os.system("umount %s" % (slave_dict[slave]["mnt"]))
os.removedirs(slave_dict[slave]["mnt"])
except:
print("Failed to unmount the "+slave+" volume")
os.removedirs(master_mnt)
def main():
slaves = args[1:]
masterurl = args[0]
master_node, mastervol = parse_url(masterurl)
master_mnt = tempfile.mkdtemp()
i = 1
for slave in slaves:
slave_dict["slave"+str(i)] = {}
slave_dict["slave"+str(i)]["node"], slave_dict[
"slave"+str(i)]["vol"] = parse_url(slave)
slave_dict["slave"+str(i)]["mnt"] = tempfile.mkdtemp()
i += 1
try:
print ("mounting the master volume on "+master_mnt)
os.system("glusterfs -s %s --volfile-id %s %s" % (master_node,
mastervol,
master_mnt))
time.sleep(3)
except:
print("Failed to mount the master volume")
for slave in slave_dict:
print slave
print slave_dict[slave]
try:
print ("mounting the slave volume on "+slave_dict[slave]['mnt'])
os.system("glusterfs -s %s --volfile-id %s %s" % (
slave_dict[slave]["node"], slave_dict[slave]["vol"],
slave_dict[slave]["mnt"]))
time.sleep(3)
except:
print("Failed to mount the "+slave+" volume")
res = 0
if option.check == "arequal":
res = compare_checksum(master_mnt, slave_dict)
elif option.check == "find":
res = compare_filecount(master_mnt, slave_dict)
else:
print "wrong options given"
cleanup(master_mnt, slave_dict)
sys.exit(res)
if __name__ == '__main__':
usage = "usage: %prog [option] <master-host>::<master-vol> \
<slave1-host>::<slave1-vol> . . ."
parser = OptionParser(usage=usage)
parser.add_option("-c", dest="check", action="store", type="string",
default="arequal",
help="size of the files to be used [default: %default]")
(option, args) = parser.parse_args()
if not args:
print "usage: <script> [option] <master-host>::<master-vol>\
<slave1-host>::<slave1-vol> . . ."
print ""
sys.exit(1)
main()
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