Logging with Nxlog and Log4net

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I am currently working on a project where I am collecting log information from an application using Log4net and writing the information to a file. I am using Nxlog to monitor this file, parse the information contained in the file, and send the information to all of the desired locations, i.e. Loggly,etc. Everything that I have read thus far says that Nxlog either gathers log information from a network connection or from a file, I am curious as to whether Nxlog can monitor an application to gather this log information. Any help will be greatly appreciated. Thank you.

Posted 27-Mar-13 9:01am

LeVar H.

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LeVar H. 28-Mar-13 10:15am

Thank you Prasad. This was very helpful.

2 solutions

Solution 2

log4net:

XML

...
<appender name="UdpAppender" type="log4net.Appender.UdpAppender">
  <remoteAddress value="localhost" />
  <remotePort value="5561" />
  <layout type="log4net.Layout.SerializedLayout, log4net.Ext.Json">
  </layout>
</appender>
...

Hi, make your log4net log to a local UDP port where nxlog is listening. To simplify parsing you may add JSON formatting with my project log4net.Ext.Json. Like that, you'll skip the unnecessary file logging and relieve the application from disk IO. Running nxlog process with a higher priority than the logging app will ensure it has the upper hand on UDP and hence prevent losing logs even under heavy stress.

nxlog:

...
<Extension json>
    # We expect JSON on the UDP input, this module provides parse_json()
    Module  xm_json
</Extension>

<Input udpjson>
    # Listen on local UDP port for JSON events
    Module      im_udp
    Host    localhost
    Port    5561
</Input>
...

Posted 1-May-14 23:02pm

robajz

Updated 1-May-14 23:06pm

v3

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Prasad Khandekar · Accepted Answer · 2013-03-27T15:55:00

Hello,

No, it can not be used as a application monitoring tool. NXLOG is a universal log collector and forwarder. Although when run in server mode application can route the log information to NXLog instance via syslog. For application monitoring you may want to try Hyperic Application & System Monitoring[^]

Regards,