- python 在多进程下打日志出现丢失错乱等问题，是由于 python 源码的问题。可以引入第三方包进行轻松解决
pip install ConcurrentLogHandler
sample.py
log = getLogger()
# Use an absolute path to prevent file rotation trouble.
logfile = os.path.abspath("mylogfile.log")
# Rotate log after reaching 512K, keep 5 old copies.
rotateHandler = ConcurrentRotatingFileHandler(logfile, "a", 512*1024, 5)
log.addHandler(rotateHandler)
log.setLevel(INFO)
if __name__ == '__main__':
import time, os
from logging import getLogger, INFO
from cloghandler import ConcurrentRotatingFileHandler
log = getLogger()
# Use an absolute path to prevent file rotation trouble.
logfile = os.path.abspath("mylogfile.log")
# Rotate log after reaching 512K, keep 5 old copies.
rotateHandler = ConcurrentRotatingFileHandler(logfile, "a", 512*1024, 5)
log.addHandler(rotateHandler)
log.setLevel(INFO)
while True:
log.info( str(os.getpid()) + " " + str(time.time()))
time.sleep(1)
sample.config.py
if __name__ == '__main__':
import os, time
import logging, logging.config
import cloghandler
logging.config.fileConfig("logging.ini")
log = logging.getLogger()
while True:
log.info(str(os.getpid()) + " " + str(time.time()))
time.sleep(1)
logging.ini
[loggers]
keys=root
[handlers]
keys=hand01
[formatters]
keys=form01
[logger_root]
level=NOTSET
handlers=hand01
[handler_hand01]
class=handlers.ConcurrentRotatingFileHandler
level=NOTSET
formatter=form01
args=("rotating.log", "a", 512*1024, 5)
[formatter_form01]
format=%(asctime)s %(levelname)s %(message)s
1. nohup python xxx & 多个文件进行观察日志打印情况
2. ps aux | grep xxx | grep -v grep | awk '{print $2}' | xargs kill -9 # 杀死所有进程
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