mongoprof/mongoprof.py
2016-11-30 01:26:32 -05:00

83 lines
2.7 KiB
Python

#!/usr/bin/env python
__version__ = '0.3.0'
import time
import datetime
import signal
import argparse
from pymongo import Connection
from termcolor import colored
# global quit monitor
quit = False
def watch(host, dbname, refresh, slowms=0):
global quit
db = getattr(Connection(host), dbname)
# 1 - slow operations
# 2 - all operations
db.set_profiling_level(1 if slowms else 2, slowms)
last_ts = datetime.datetime.utcnow()
exclude_name = '{0}.system.profile'.format(dbname)
def ctrl_c(signal, frame):
global quit
print('returning profiling level to 0...')
db.set_profiling_level(0)
db.system.profile.drop()
quit = True
signal.signal(signal.SIGINT, ctrl_c)
while not quit:
for e in db.system.profile.find({'ns': {'$ne': exclude_name}, 'ts': {'$gt': last_ts}}):
output = []
output.append(colored('{ts:%H:%M:%S}'.format(**e), 'white'))
if 'ns' in e:
output.append(colored('{ns}'.format(**e), 'blue'))
# operation
op = e.get('op')
if op == 'query':
output.append(colored('query {query}'.format(**e), 'cyan'))
elif op == 'update':
output.append(colored('update {query}'.format(**e), 'green'))
elif op == 'getmore':
output.append(colored('getmore {0}'.format(e.get('query', '')), 'grey'))
elif op == 'command':
output.append(colored('{command}'.format(**e), 'cyan'))
else:
output.append(colored('unknown operation: {0}'.format(op), 'red'))
print(e)
if 'nscanned' in e:
output.append(colored('scanned {nscanned}'.format(**e), 'yellow'))
if 'ntoskip' in e:
output.append(colored('skip {ntoskip}'.format(**e), 'blue'))
if 'nreturned' in e:
output.append(colored('returned {nreturned}'.format(**e), 'green'))
if e.get('scanAndOrder'):
output.append(colored('scanAndOrder', 'red'))
if 'millis' in e:
output.append(colored('{millis}ms'.format(**e), 'green'))
print(' '.join(output))
last_ts = e['ts']
time.sleep(refresh)
def main():
parser = argparse.ArgumentParser(description='watch mongo queries')
parser.add_argument('dbname', help='name of database to watch')
parser.add_argument('--host', help='hostname', default='localhost')
parser.add_argument('--slowms', type=int, default=0,
help='only show transactions slower than ms')
args = parser.parse_args()
watch(args.host, args.dbname, 0.1, args.slowms)
if __name__ == '__main__':
main()