+#
+# Something relevant
+#
"""A very simple logger that tries to be concurrency-safe."""
import os, sys
import traceback
-LOG_FILE = '/root/node_mgr.log'
+LOG_FILE = '/var/log/nm'
+LOG_SLIVERS = '/var/log/getslivers.txt'
-def log(msg):
- """Write <msg> to the log file."""
+# Thierry - trying to debug this for 4.2
+# basically define 3 levels
+LOG_NONE=0
+LOG_NODE=1
+LOG_VERBOSE=2
+# default is to log a reasonable amount of stuff for when running on operational nodes
+LOG_LEVEL=1
+
+def set_level(level):
+ global LOG_LEVEL
+ assert level in [LOG_NONE,LOG_NODE,LOG_VERBOSE]
+ LOG_LEVEL=level
+
+def verbose(msg):
+ log(msg,LOG_VERBOSE)
+
+def log(msg,level=LOG_NODE):
+ """Write <msg> to the log file if level >= current log level (default LOG_NODE)."""
+ if (level > LOG_LEVEL):
+ return
try:
fd = os.open(LOG_FILE, os.O_WRONLY | os.O_CREAT | os.O_APPEND, 0600)
if not msg.endswith('\n'): msg += '\n'
def log_call(*args):
log('running command %s' % ' '.join(args))
- try: subprocess.call(args)
+ try: subprocess.call(args, close_fds=True)
except: log_exc()
-def log_exc():
+def log_exc(name = None):
"""Log the traceback resulting from an exception."""
- log(traceback.format_exc())
+ if name:
+ log("operation on %s failed. \n %s" %(name, traceback.format_exc()))
+ else:
+ log(traceback.format_exc())
+
+def log_slivers (data):
+ import pprint, time
+ try:
+ f=open(LOG_SLIVERS,'w')
+ now=time.strftime("GetSlivers stored on %Y.%m.%d at %H:%M:%S", time.localtime())
+ f.write(now+'\n')
+ pp=pprint.PrettyPrinter(stream=f,indent=2)
+ pp.pprint(data)
+ f.close()
+ except:
+ log_verbose('Cannot save GetSlivers in %s'%LOG_SLIVERS)