4 """A very simple logger that tries to be concurrency-safe."""
12 LOG_FILE = '/var/log/nm'
13 LOG_SLIVERS = '/var/log/getslivers.txt'
15 # Thierry - trying to debug this for 4.2
16 # basically define 3 levels
20 # default is to log a reasonable amount of stuff for when running on operational nodes
25 assert level in [LOG_NONE,LOG_NODE,LOG_VERBOSE]
31 def log(msg,level=LOG_NODE):
32 """Write <msg> to the log file if level >= current log level (default LOG_NODE)."""
33 if (level > LOG_LEVEL):
36 fd = os.open(LOG_FILE, os.O_WRONLY | os.O_CREAT | os.O_APPEND, 0600)
37 if not msg.endswith('\n'): msg += '\n'
38 os.write(fd, '%s: %s' % (time.asctime(time.gmtime()), msg))
45 log('running command %s' % ' '.join(args))
46 try: subprocess.call(args, close_fds=True)
49 def log_exc(name = None):
50 """Log the traceback resulting from an exception."""
52 log("operation on %s failed. \n %s" %(name, traceback.format_exc()))
54 log(traceback.format_exc())
56 def log_slivers (data):
59 f=open(LOG_SLIVERS,'w')
60 now=time.strftime("GetSlivers stored on %Y.%m.%d at %H:%M:%S", time.localtime())
62 pp=pprint.PrettyPrinter(stream=f,indent=2)
66 log_verbose('Cannot save GetSlivers in %s'%LOG_SLIVERS)