Support Logging setup

                    Python Syslog Logging

                    Python Syslog

                    You can send Python logs over syslog using the SyslogHandler. Your syslog daemon such as rsyslog will receive these events and then forward them to Loggly. The advantage of Rsyslog is that it can send TCP events without blocking your application, can optionally encrypt the data, and even queue data to add robustness to network failure. Use this approach for the best reliability and performance on server-side apps. We will automactically parse the JSON formatted logs as JSON fields.

                    Python Syslog Setup


                    1. Configure Syslog Daemon

                    If you haven’t already, run our automatic Configure-Syslog script below to setup rsyslog. Alternatively, you can Manually Configure Rsyslog or Syslog-ng.

                    curl -O http://www.ziyi11.site/install/configure-linux.sh
                    sudo bash configure-linux.sh -a SUBDOMAIN -u USERNAME
                    

                    Replace:

                    • SUBDOMAIN: your account subdomain that you created when you signed up for Loggly
                    • USERNAME: your Loggly username

                    2. Configure Syslog Daemon for UDP Input

                    Open rsyslog’s configuration file

                    sudo vim /etc/rsyslog.conf
                    

                    Uncomment these lines to accept UDP messages on the default port 514.

                    $ModLoad imudp
                    $UDPServerRun 514
                    
                    Python Logs

                    Restart the rsyslog service so the changes take effect

                    sudo service rsyslog restart
                    

                    3. Configure SyslogHandler

                    Add SyslogHandler to your source file

                    import logging
                    import logging.handlers
                    
                    logger = logging.getLogger('myLogger')
                    logger.setLevel(logging.INFO)
                    
                    #add handler to the logger
                    handler = logging.handlers.SysLogHandler('/dev/log')
                    
                    #add formatter to the handler
                    formatter = logging.Formatter('Python: { "loggerName":"%(name)s", "timestamp":"%(asctime)s", "pathName":"%(pathname)s", "logRecordCreationTime":"%(created)f", "functionName":"%(funcName)s", "levelNo":"%(levelno)s", "lineNo":"%(lineno)d", "time":"%(msecs)d", "levelName":"%(levelname)s", "message":"%(message)s"}')
                    
                    handler.formatter = formatter
                    logger.addHandler(handler)
                    
                    logger.info("Test Message")
                    

                    Run application and send some logs.

                    4. Verify Syslog Events

                    Search Loggly for events with the logtype as syslog over the past hour. It may take few minutes to index the event. If if doesn’t work, see the troubleshooting section below.

                    syslog.appName:Python
                    

                    Advanced Python Syslog Options

                    Troubleshooting Python Syslog Logs

                    • Wait a few minutes in case indexing needs to catch up.
                    • Check if the SyslogHandler configuration is correct
                    • Run “sudo tcpdump -i lo -A udp and port 514″ to verify UDP events are being sent to localhost
                    • Search or post your own Python logging syslog question in the community forum.
                    Thanks for the feedback! We'll use it to improve our support documentation.


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