Not sure.
We do use signaling to 'interrupt' the running process and get it to tell the
PORT.STATUS session what it is up to.
IIRC, we use SIGUSR2, specifically.
So - there could be some system calls that the udt process is in that cannot be
interrupted.
For instance, I tested a phantom that was running 'SLEEP 120' - and
experienced the same result as Bill (no call stack printed).
I changed this to a loop FOR 120 that was printing a line, then SLEEP 1
Here is the result:
:LISTUSER
Licensed(UDT+CP)/Effective Udt Sql iPhtm Pooled Total
( 32 + 32 ) / 64 2 0 0 0 2
UDTNO USRNBR UID USRNAME USRTYPE TTY IP-ADDRESS TIME DATE
1 5372 305730 WTerhune udt pts/1 Console 11:53:11 Apr 02 2010
2 6020 305730 WTerhune phantom pts/2 Console 11:58:05 Apr 02 2010
3 2384 305730 WTerhune udt pts/3 Console 11:55:11 Apr 02 2010
:PORT.STATUS PID 6020 CALL.STACK
Licensed(UDT+CP)/Effective Udt Sql iPhtm Pooled Total
(32 + 32) / 64 2 0 0 0 2
Udtno Pid User UserType Port Last command processed
2 6020 WTerhune phantom 8443624
level line BASIC callstack
1 4 BP\_WWW
Session no command stack.
:
Wally Terhune
U2 Support Architect
Rocket Software
4700 S. Syracuse Street, Suite 400 **Denver, CO 80237 **USA
Tel: +1.720.475.8055
Email: [email protected]
Web: www.rocketsoftware.com/u2
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Bill Haskett
Sent: Friday, April 02, 2010 10:22 AM
To: U2 Users List
Subject: Re: [U2] UD: Phantoms
Wally:
Thanks. Using LISTUSER() I can figure out what processes are phantoms
but not what they're running. Thus, I have no way to figure out of my
BACKGROUND.SERVICE program is running (it sleeps and wakes up every
minute). When I do a PORT.STATUS PID {pid# of phantom} CALL.STACK
nothing is returned (and it takes about 15 seconds on a fast,
development system).
2 Dev (0)-> LU
Licensed(UDT+CP)/Effective Udt Sql iPhtm Pooled
Total
( 24 + 1 ) / 25 3 0 0 0 3
UDTNO USRNBR UID USRNAME USRTYPE TTY IP-ADDRESS TIME DATE
1 2192 197614 AsiAdmin phantom pts/1 Console 05:51:51 Apr
02 2010
2 3248 197615 wphaskett udt pts/2 192.168.1.51 05:54:32 Apr
02 2010
2 Dev (0)-> PORT.STATUS PID 2192 CALL.STACK
Licensed(UDT+CP)/Effective Udt Sql iPhtm Pooled
Total
(24 + 1) / 25 3 0 0 0 3
Udtno Pid User UserType Port Last command processed
1 2192 AsiAdmin phantom 28101260
2 Dev (0)->
Am I missing something?
Thanks again.
Bill
------------------------------------------------------------------------
Wally Terhune said the following on 4/2/2010 8:40 AM:
> Question wasn't clear to me.
> If looking at active processes, listuser shows which are phantoms (USRTYPE
> column)
> Also - UniBasic LISTUSER() function returns this as dynamic array for easy
> parsing
>
> :listuser
>
> Licensed(UDT+CP)/Effective Udt Sql iPhtm Pooled Total
>
> ( 32 + 32 ) / 64 1 0 0 0 1
>
> UDTNO USRNBR UID USRNAME USRTYPE TTY IP-ADDRESS TIME DATE
> 1 5936 305730 WTerhune udt pts/1 Console 09:34:36 Apr 02 2010
> 2 4300 305730 WTerhune phantom pts/2 Console 09:34:58 Apr 02 2010
>
> Wally Terhune
> U2 Support Architect
> Rocket Software
> 4700 S. Syracuse Street, Suite 400 **Denver, CO 80237 **USA
> Tel: +1.720.475.8055
> Email: [email protected]
> Web: www.rocketsoftware.com/u2
>
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Martin Phillips
> Sent: Friday, April 02, 2010 9:35 AM
> To: U2 Users List
> Subject: Re: [U2] UD: Phantoms
>
> Hi Bill,
>
>
>> In UniData, does anyone know of a sure way to determine if a BASIC
>> program is running as a phantom?
>>
>
> Take a look at the @USER.TYPE variable. This contains 1 for a phantom.
>
>
> Martin Phillips
> Ladybridge Systems Ltd
> 17b Coldstream Lane, Hardingstone, Northampton, NN4 6DB
> +44-(0)1604-709200
> _______________________________________________
> U2-Users mailing list
> [email protected]
> http://listserver.u2ug.org/mailman/listinfo/u2-users
> _______________________________________________
> U2-Users mailing list
> [email protected]
> http://listserver.u2ug.org/mailman/listinfo/u2-users
>
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