syslog中的多行日志记录

问题描述

因此，我已将Python应用程序配置为使用Python的SysLogHandler登录到syslog，并且一切正常.多行处理除外.并不是我需要非常严重地发出多行日志记录(我做了一点)，但是我需要能够读取Python的异常.我正在将Ubuntu与rsyslog 4.2.0一起使用.这就是我得到的:

So I've configured my Python application to log to syslog with Python's SysLogHandler, and everything works fine. Except for multi-line handling. Not that I need to emit multiline log records so badly (I do a little), but I need to be able to read Python's exceptions. I'm using Ubuntu with rsyslog 4.2.0. This is what I'm getting:

Mar 28 20:11:59 telemachos root: ERROR 'EXCEPTION'#012Traceback (most recent call last):#012  File "./test.py", line 22, in <module>#012    foo()#012  File "./test.py", line 13, in foo#012    bar()#012  File "./test.py", line 16, in bar#012    bla()#012  File "./test.py", line 19, in bla#012    raise Exception("EXCEPTION!")#012Exception: EXCEPTION!

在需要时测试代码:

import logging
from logging.handlers import SysLogHandler

logger = logging.getLogger()
logger.setLevel(logging.INFO)
syslog = SysLogHandler(address='/dev/log', facility='local0')
formatter = logging.Formatter('%(name)s: %(levelname)s %(message)r')
syslog.setFormatter(formatter)
logger.addHandler(syslog)

def foo():
    bar()

def bar():
    bla()

def bla():
    raise Exception("EXCEPTION!")

try:
    foo()
except:
    logger.exception("EXCEPTION")

推荐答案

好的，终于知道了...

OK, figured it out finally...

rsyslog会转义所有奇怪的字符(ASCII< 32)，其中包括换行符(以及制表符和其他字符).只需将其添加到您的rsyslog配置中即可将其关闭:

rsyslog by default escapes all weird characters (ASCII < 32), and this include newlines (as well as tabs and others). Simply add this to your rsyslog config to turn this off:

$EscapeControlCharactersOnReceive off

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