def __init__(self, shard):
Service.__init__(self, shard)
# Determine location of log file, and make directories.
log_dir = os.path.join(config.log_dir, "cms")
if not mkdir(config.log_dir) or \
not mkdir(log_dir):
logger.error("Cannot create necessary directories.")
self.exit()
return
log_filename = "%d.log" % int(time.time())
# Install a global file handler.
self.file_handler = FileHandler(os.path.join(log_dir, log_filename),
mode='w',
encoding='utf-8')
self.file_handler.setLevel(logging.DEBUG)
self.file_handler.setFormatter(DetailedFormatter(False))
root_logger.addHandler(self.file_handler)
# Provide a symlink to the latest log file.
try:
os.remove(os.path.join(log_dir, "last.log"))
except OSError:
pass
os.symlink(log_filename, os.path.join(log_dir, "last.log"))
self._last_messages = deque(maxlen=self.LAST_MESSAGES_COUNT)
def initialize_logging(self):
"""Set up additional logging handlers.
What we do, in detail, is to add a logger to file (whose
filename depends on the coords) and a remote logger to a
LogService. We also attach the service coords to all log
messages.
"""
filter_ = ServiceFilter(self.name, self.shard)
# Update shell handler to attach service coords.
shell_handler.addFilter(filter_)
# Determine location of log file, and make directories.
log_dir = os.path.join(config.log_dir,
"%s-%d" % (self.name, self.shard))
mkdir(config.log_dir)
mkdir(log_dir)
log_filename = time.strftime("%Y-%m-%d-%H-%M-%S.log")
# Install a file handler.
file_handler = FileHandler(os.path.join(log_dir, log_filename),
mode='w',
encoding='utf-8')
if config.file_log_debug:
file_log_level = logging.DEBUG
else:
file_log_level = logging.INFO
file_handler.setLevel(file_log_level)
file_handler.setFormatter(DetailedFormatter(False))
file_handler.addFilter(filter_)
root_logger.addHandler(file_handler)
# Provide a symlink to the latest log file.
try:
os.remove(os.path.join(log_dir, "last.log"))
except OSError:
pass
os.symlink(log_filename, os.path.join(log_dir, "last.log"))
# Setup a remote LogService handler (except when we already are
# LogService, to avoid circular logging).
if self.name != "LogService":
log_service = self.connect_to(ServiceCoord("LogService", 0))
remote_handler = LogServiceHandler(log_service)
remote_handler.setLevel(logging.INFO)
remote_handler.addFilter(filter_)
root_logger.addHandler(remote_handler)