FWD: RE: Argus, and moving 'live files'

Chris Newton newton at unb.ca
Mon Mar 12 09:12:30 EST 2001


Ah, ok.  I started it up in non-daemon mode... I'll see if I can get you some 
debug output.

  I had already restarted the argus stuff (since we are doing other testing 
that, without output, slows us down :))... so, I'll let you know when it 
happens again.  Next time, I should be able to get some debug info for you.

Chris

>===== Original Message From <carter at qosient.com> =====
>Hey Chris,
>
>Debug output is sent to stdout, so you shouldn't be
>running in daemon mode, you'll want to remove that
>from any configuration file like /etc/argus.conf.
>Possibly we should do the gdb() thing instead.  If
>the argi are all still up, I'll step you through a
>debug, but we'll have to do it after lunch today.
>I've got to work on a couple of proposals today.
>
>Carter
>
>Carter Bullard
>QoSient, LLC
>300 E. 56th Street, Suite 18K
>New York, New York  10022
>
>carter at qosient.com
>Phone +1 212 588-9133
>Fax   +1 212 588-9134
>http://qosient.com
>
>> -----Original Message-----
>> From: Chris Newton [mailto:newton at unb.ca]
>> Sent: Monday, March 12, 2001 7:34 AM
>> To: Carter Bullard; argus; Peter Van Epp
>> Subject: RE: FWD: RE: Argus, and moving 'live files'
>>
>>
>> Hmm, happened again, at 3am, this morning.  I'm not sure I
>> did the debugging
>> stuff right though.  Where should the debug output be sent?
>>
>>   I may need to let this happen again,  but I want to make
>> sure I have the
>> debugging steps right, so I can get the output to you guys.
>>
>> Chris
>>
>> >===== Original Message From <carter at qosient.com> =====
>> >Hey Chris,
>> >What others have seen, is that the second process that argus
>> >spawns, is either eating up a lot of CPU or none at all.
>> >This is the flow record multiplexor, and so if its not doing
>> >what its suppose to do, then nothing is going to come out of
>> >the argus.
>> >
>> >There are several debugging strategies to find out what is
>> >going on.  The first is to do a simple ps() to make sure that all
>> >the processes are there.  In the case of writing out to a file,
>> >you should have at least 3 argus processes running all the time.
>> >If you do have 3 processes, you can use gdb to attach to each
>> >running process, and then step through them for a few
>> >instructions to see what they are doing.
>> >
>> >Another strategy is to turn debug support on for each process.
>> >If you've compiled in debug support, then you can send SIGUSR1
>> >signals to any argus process to turn on its debug reporting.
>> >So as an example, assuming that the 3 processes are 200, 201
>> >and 202:
>> >
>> >   # kill -USR1 202
>> >
>> >will turn on debug reporting and set the debug level to one.
>> >Sending another SIGUSR1 will increment the debug level.  To
>> >turn it off, send a SIGUSR2 to the process.
>> >
>> >   # kill -USR2 202
>> >
>> >So you can test them all, by getting their debug level to 3 or
>> >4 and see what they think is going on.
>> >
>> >Carter
>> >
>> >Carter Bullard
>> >QoSient, LLC
>> >300 E. 56th Street, Suite 18K
>> >New York, New York  10022
>> >
>> >carter at qosient.com
>> >Phone +1 212 588-9133
>> >Fax   +1 212 588-9134
>> >http://qosient.com
>> >
>> >> -----Original Message-----
>> >> From: Chris Newton [mailto:newton at unb.ca]
>> >> Sent: Thursday, March 08, 2001 1:33 PM
>> >> To: Carter Bullard; argus; Peter Van Epp
>> >> Subject: RE: FWD: RE: Argus, and moving 'live files'
>> >>
>> >>
>> >> >===== Original Message From <carter at qosient.com> =====
>> >> >Hey Guys,
>> >> >   Chris, more than likely your problem doesn't have anything
>> >> >to do with the file moving itself.  If Argus breaks, you will
>> >> >see that your file moving strategy will suddenly stop, as
>> >> >there won't be a file to move any more.  So the file moving
>> >> >makes the problem much more apparent.
>> >>
>> >>   Thats whats happening.  I get errors from my script that
>> >> the 'argus-output'
>> >> file does not exist, and therefore, can't be moved.  Argus is
>> >> still running
>> >> happily though.
>> >>
>> >>   It happens out of the blue (the couple of times it has
>> >> happened).  The
>> >> moving script runs happily along.. then, boom... errors, 'no
>> >> such file'.  I
>> >> check, sure enough, Argus isn't recreating the new
>> >> 'argus-output' file
>> >> anymore.  Kill restart argus, everything returns to normal.
>> >>
>> >> Chris
>> >>
>>
>> _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
>>
>> Chris Newton, Systems Analyst
>> Computing Services, University of New Brunswick
>> newton at unb.ca 506-447-3212(voice) 506-453-3590(fax)
>>
>>

_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/

Chris Newton, Systems Analyst
Computing Services, University of New Brunswick
newton at unb.ca 506-447-3212(voice) 506-453-3590(fax)



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