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  1.  Home
  2. DOMINO400
  3. July 2005

Re: Web site hangs

It's been a slow Friday afternoon.... =)

Chris Whisonant
Comporium
Senior Mid-Range Systems Administrator
IBM eServer Certified Systems Expert - iSeries Technical Solutions V5R2
IBM Certified System Administrator - Lotus Notes and Domino 6/6.5
803.326.7270 | 803.326.6142 fax
http://cwhisonant.blogspot.com/

domino400-bounces+chris.whisonant=comporium.com@xxxxxxxxxxxx wrote on 
07/29/2005 03:24:49 PM:

> 
> Well done!  Thanks, Chris.
> 
> 
> 
>  
>              Chris Whisonant  
>              <Chris.Whisonant@  
>              comporium.com> To 
>              Sent by:                  Lotus Domino on the iSeries / 
AS400 
>              domino400-bounces         <domino400@xxxxxxxxxxxx>  
>              +ptrapp=nex-tech. cc 
>              com@xxxxxxxxxxxx  
> Subject 
>                                        Re: Web site hangs  
>              07/29/2005 02:17  
>              PM  
>  
>  
>              Please respond to  
>               Lotus Domino on  
>                the iSeries /  
>                    AS400  
>              <domino400@midran  
>                   ge.com>  
>  
>  
> 
> 
> 
> 
> This is as much for me as for anyone else! I compiled this and put it on
> my blog as well at
> http://cwhisonant.blogspot.com/2005/07/debugging-for-domino.html
> 
> Debugging for Domino
> Before proceeding, let me say that starting debugging should only be 
done
> per instructions from IBM. =) Also note that debugging can, by it's very
> nature, impact system performance. Although, I have not noticed any
> performance impacts when I have enabled debugging. This post will only
> deal with configuring the server for debug mode and not with the 
analysis
> of debug data. Many of these commands are also useful for the Notes 
Client
> .
> 
> Let's begin with some of the DEBUG_* options by describing their usage
> along with some information on how to enable them.
> 
> 1.) DEBUG_THREADID=1
> Per this Lotus technote, "This prefixes the console output with the
> process and threadid information in the format [ProcessID:Virtual Thread
> ID-Native Thread ID]. This can be helpful in identifying the process or
> thread holding a semaphore."
> 
> 2.) DEBUG_NTI_DRVR=1 I cannot find any information on this via 
technotes.
> My understanding is that this will enable debugging of the TCP/IP NTI
> Driver.
> 
> 3.) DEBUG_TCP_ALL=1 This turns on debugging for all TCP functions.
> 
> 4.) DEBUG_TCP_ERRORS=1 This turns on debugging for TCP errors.
> 
> 5.) DEBUG_DBSERVER=1 This turns on debugging for the DB Server calls 
that
> may be made.
> 
> 6.) DEBUG_SHOW_TIMEOUT=1 This turns on debugging for semaphores. See 
this
> Lotus Technote for information on debugging. See also this Lotus 
Technote
> for general information on semaphores.
> 
> 7.) DEBUG_CAPTURE_TIMEOUT=10 This adds timestamps to the semaphore
> debugging.
> 
> 8.) Debug_outfile=debug.txt This option specifies the location of the
> debug file. As a side note, I have noticed that after a couple of days 
on
> my iSeries that this file stops growing at 4GB. Lotus could not confirm
> this, but it appears that at 4GB this file becomes circular just like
> transaction logging. The following information is from the Lotus
> Administrator help database:
> 
> >From my understanding, these are all dynamic options (except for #8) -
> meaning that you can type "set config DEBUG_THREADID=1" (or any of the
> others) at the console and begin seeing this output. If you have the 
debug
> outfile or console logging active (see below), then the will be 
reflected
> in those files as well. Please see this Lotus Technote for more
> information on setting this dynamically.
> 
> Syntax: Debug_Outfile=filename
> Description: Specifies the file name for the Console Log file. If both
> this setting and the LogFile_Dir setting exist and Debug_Outfile 
contains
> a fully qualified path name, then LogFile_Dir is not used.
> If only the Debug_Outfile setting exists and it contains only a file 
name,
> then the default path \DATADIRECTORY\IBM_TECHNICAL_SUPPORT is used. If
> neither Debug_Outfile or LogFile_Dir exist, then the default path is
> \DATADIRECTORY\IBM_TECHNICAL_SUPPORT and the default path is 
CONSOLE.LOG.
> 
> The following represents the debugging I have in my notes.ini currently 
to
> assist in troubleshooting my 6.5.4 errors - you can see that I have 
turned
> off several and enabled some others:
> 
> DEBUG_THREADID=1
> DEBUG_DBSERVER=1
> DEBUG_SHOW_TIMEOUT=1
> DEBUG_CAPTURE_TIMEOUT=10
> DEBUG_NTI_DRVR=0
> DEBUG_TCP_ALL=0
> DEBUG_TCP_ERRORS=0
> DEBUG_OUTFILE=DEBUG.TXT
> 
> A side note on analysis, with options such as DEBUG_THREADID, you will 
be
> able to see a Process ID number along with Thread ID's. You can then, by
> possibly having agent print statements, be able to associate the
> Process/Thread ID with a particular agent, task, or user. This can
> potentially go a long way in helping to determine the cause of an issue.
> 
> Chris Whisonant
> Comporium
> Senior Mid-Range Systems Administrator
> IBM eServer Certified Systems Expert - iSeries Technical Solutions V5R2
> IBM Certified System Administrator - Lotus Notes and Domino 6/6.5
> 803.326.7270 | 803.326.6142 fax
> http://cwhisonant.blogspot.com/
> 
> domino400-bounces+chris.whisonant=comporium.com@xxxxxxxxxxxx wrote on
> 07/29/2005 11:52:04 AM:
> 
> > How does one turn on TCP logging?
> >
> > Yes, it does occur after some period of inactivity.
> >
> > Rob Berendt
> > --
> > Group Dekko Services, LLC
> > Dept 01.073
> > PO Box 2000
> > Dock 108
> > 6928N 400E
> > Kendallville, IN 46755
> > http://www.dekko.com
> >
> >
> >
> >
> >
> > Chris Whisonant <Chris.Whisonant@xxxxxxxxxxxxx>
> > Sent by: domino400-bounces+rob=dekko.com@xxxxxxxxxxxx
> > 07/29/2005 10:37 AM
> > Please respond to
> > Lotus Domino on the iSeries / AS400 <domino400@xxxxxxxxxxxx>
> >
> >
> > To
> > Lotus Domino on the iSeries / AS400 <domino400@xxxxxxxxxxxx>
> > cc
> >
> > Subject
> > Re: Web site hangs
> >
> >
> >
> >
> >
> >
> > You may want to turn on some TCP logging for the console. We were 
having
> 
> > some poor client performance and when i turned on some logging for the
> > client I could see that the updating of unread marks was really 
killing
> us
> >
> > (1.5-2 minute db load - lol!) It could be helpful to see what was 
taking
> 
> > so long. We could see that the particular unread mark thing was taking
> > 1500 ms +. Turned off unread marks on db and it "fixed" the issue.
> >
> > Is unread marks turned on in your app? When the agent hangs is it 
after
> a
> > period of inactivity? Just some thoughts...
> >
> > Chris Whisonant
> > Comporium
> > Senior Mid-Range Systems Administrator
> > IBM eServer Certified Systems Expert - iSeries Technical Solutions 
V5R2
> > IBM Certified System Administrator - Lotus Notes and Domino 6/6.5
> > 803.326.7270 | 803.326.6142 fax
> > http://cwhisonant.blogspot.com/
> >
> > domino400-bounces+chris.whisonant=comporium.com@xxxxxxxxxxxx wrote on
> > 07/29/2005 11:24:49 AM:
> >
> > > One of our Notes developers called me and said that sometimes an
> > > application on our domino based web site (in the dmz) hangs.  He
> checked
> >
> >
> > > the agent's log and it may experience up to a 5 minute delay when
> trying
> >
> >
> > > to update a file on a different domino server, in a different 
domain,
> in
> >
> >
> > > our intranet.
> > >
> > > Don't know if it's a coincidence but we notice on QSYSOPR (on the 
dmz
> > > machine) the following message:
> > > TCP2617-TCP/IP connection to remote system xxx.xxx.xxx.xxx closed,
> > reason
> > > code 2.
> > > where xxx.xxx.xxx.xxx is the ip address of the domino server on the
> > > intranet machine.
> > > Now, I know how to change the tcp attributes to turn this message 
off,
> 
> > but
> > > I was wondering if this may be related to the hang.
> > >
> > > I didn't see anything else in either QSYSOPR, nor the log.nsf, on
> either
> >
> >
> > > machine that caught my eye.
> > >
> > > Rob Berendt
> > > --
> > > Group Dekko Services, LLC
> > > Dept 01.073
> > > PO Box 2000
> > > Dock 108
> > > 6928N 400E
> > > Kendallville, IN 46755
> > > http://www.dekko.com
> > >
> > > _______________________________________________
> > > This is the Lotus Domino on the iSeries / AS400 (Domino400) mailing
> list
> > > To post a message email: Domino400@xxxxxxxxxxxx
> > > To subscribe, unsubscribe, or change list options,
> > > visit: http://lists.midrange.com/mailman/listinfo/domino400
> > > or email: Domino400-request@xxxxxxxxxxxx
> > > Before posting, please take a moment to review the archives
> > > at http://archive.midrange.com/domino400.
> > >
> > _______________________________________________
> > This is the Lotus Domino on the iSeries / AS400 (Domino400) mailing 
list
> > To post a message email: Domino400@xxxxxxxxxxxx
> > To subscribe, unsubscribe, or change list options,
> > visit: http://lists.midrange.com/mailman/listinfo/domino400
> > or email: Domino400-request@xxxxxxxxxxxx
> > Before posting, please take a moment to review the archives
> > at http://archive.midrange.com/domino400.
> >
> >
> > _______________________________________________
> > This is the Lotus Domino on the iSeries / AS400 (Domino400) mailing 
list
> > To post a message email: Domino400@xxxxxxxxxxxx
> > To subscribe, unsubscribe, or change list options,
> > visit: http://lists.midrange.com/mailman/listinfo/domino400
> > or email: Domino400-request@xxxxxxxxxxxx
> > Before posting, please take a moment to review the archives
> > at http://archive.midrange.com/domino400.
> >
> _______________________________________________
> This is the Lotus Domino on the iSeries / AS400 (Domino400) mailing list
> To post a message email: Domino400@xxxxxxxxxxxx
> To subscribe, unsubscribe, or change list options,
> visit: http://lists.midrange.com/mailman/listinfo/domino400
> or email: Domino400-request@xxxxxxxxxxxx
> Before posting, please take a moment to review the archives
> at http://archive.midrange.com/domino400.
> 
> 
> 
> _______________________________________________
> This is the Lotus Domino on the iSeries / AS400 (Domino400) mailing list
> To post a message email: Domino400@xxxxxxxxxxxx
> To subscribe, unsubscribe, or change list options,
> visit: http://lists.midrange.com/mailman/listinfo/domino400
> or email: Domino400-request@xxxxxxxxxxxx
> Before posting, please take a moment to review the archives
> at http://archive.midrange.com/domino400.
>

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