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kckirwan_49724's avatar
kckirwan_49724
Icon for Nimbostratus rankNimbostratus
Dec 12, 2008

iRules not logging in LTM ????

Everyone......

 

Wonder if you have seen this and/or have a suggestion / fix for this.

 

 

I have a somewhat verbose logging rule that we use periodically to debug possible connection issues, etc......(Not really reinventing the wheel here, just logging particular fields, client_addr, server_addr etc.).

 

 

This has worked wonderfully in the past, but unfortunately when I go and add ANY iRules that include log local0. statement, nothing gets logged.

 

 

We have the default syslog-ng config. I'm not really all that familiar with tweaking it anyway.

 

 

Question: Anyone seen where the logging to LTM just seems to "quit"???

 

I'm just looking for some pointers as to where I might start debugging this issue......

 

 

Thanks in advance for any assistance.

 

 

Happy Holidays,

 

 

Kevin
application delivery
dev
devops
iRules

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  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Dec 12, 2008
    Hi Kevin,

     

     

    The only thing I can think of is to check if logging daemons are running (bigstart status). Maybe restart them by running bigstart restart syslog-ng or alertd would fix the problem.

     

     

    If it's a production box, I'd open a case with F5 Support. If it's a dev box, you could take the shotgun approach and restart either syslog-ng, alertd or all daemons.

     

     

    Aaron
  • Nicolas_Menant's avatar
    Nicolas_Menant
    Icon for Employee rankEmployee
    Dec 15, 2008
    If you use the log local0 statement it means you should fill the /var/log/ltm file.

     

     

    Can you check you still have logging information into your /var/log/ltm file ? if you don't see anything at all since a while it means your syslog-ng is probably messed up. If you still receive information in /var/log/ltm it is weird ...
  • Steve_Scott_873's avatar
    Steve_Scott_873
    Historic F5 Account
    Dec 15, 2008
    What version are you on?

     

    We had problems with an older version where the Syslogd would periodically die. All sorted in 9.4.4