RE: UV - is there a coldstart equivalent
The method we use is obvious (in hindsight) ... Not sure what it's called - it used to be AT, and is the Windows equivalent of cron ... That isn't time controlled. It can be, but it can also be event controlled. And one of the events that are controlled is a reboot. So we can/did/do run a uv command from the windows command line using this mechanism to restart all our phantoms after the nightly reboot. You probably want to put a "sleep" into the windows .cmd file, otherwise you may find your UV command tries to run before the UV server has fully woken up. Cheers, Wol -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Troy Buss (Logitek Systems) Sent: 09 March 2004 19:52 To: 'U2 Users Discussion List' Subject: RE: UV - is there a coldstart equivalent Thanks everyone that replied with suggestions. We are running on win 2003 server. I had an idea to check system(3001) which is the universe user1 performance monitor. I can change it using: ASSIGN 1 TO SYSTEM(3001) It shows up in the windows performance monitor, but: PRINT SYSTEM(3001) always returns 0. My thought was to make all application logons go through a simple check at logon and if the value was zero, to dispatch a phantom, increment the value and continue. thus providing a mechanism to launch a phantom process the first time someone logs in after a reboot. i.e.: VALUE = SYSTEM(3001) IF VALUE = 0 THEN EXECUTE "PHANTOM background.process" END VALUE = VALUE + 1 ASSIGN VALUE TO SYSTEM(3001) I'm wondering why one can set the value "system(3001..3005) but there seems to be no way to interrogate the value. -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users *** This transmission is intended for the named recipient only. It may contain private and confidential information. If this has come to you in error you must not act on anything disclosed in it, nor must you copy it, modify it, disseminate it in any way, or show it to anyone. Please e-mail the sender to inform us of the transmission error or telephone ECA International immediately and delete the e-mail from your information system. Telephone numbers for ECA International offices are: Sydney +61 (0)2 9911 7799, Hong Kong + 852 2121 2388, London +44 (0)20 7351 5000 and New York +1 212 582 2333. *** -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users
RE: UV - is there a coldstart equivalent
Interesting observation... I stopped and restarted universe and the value remained unchanged in the performance monitor. So this system(3001) counter theory is not going to work anyway. I've gone down the path of using a basic lock test (one of the 64 BASIC locks) instead. This method also requires that the phantom not ever log off or the lock is cleared and another is started. In my application, I actually want to clean up some config/status files and remain running so this is not an issue. So, using something like lock number 60 to indicate the phantom process is running. all logons execute this little test and launch snippet:: LOCK 60 THEN * * if I can lock, phantom not running, unlock the lock and dispatch phantom * UNLOCK 60 EXECUTE "PHANTOM background.program ..." END ELSE * PHANTOM ALREADY RUNNING END this is the PHANTOM background.program: LOCK 60 ELSE * another phantom is already running this program, so log off CHAIN "OFF" END * * do phantom processing code - * PHANTOM PROCESSING CODE IS HERE fyi.. I don't want to test a value in a file since I need something that is inherently 'reset' when the universe database is started. ie, the lock table is clear. A value in a file would remain through a restart and would not work. If there is a more elegant solution, please chime in. Thanks! -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users
RE: UV - is there a coldstart equivalent
Thanks everyone that replied with suggestions. We are running on win 2003 server. I had an idea to check system(3001) which is the universe user1 performance monitor. I can change it using: ASSIGN 1 TO SYSTEM(3001) It shows up in the windows performance monitor, but: PRINT SYSTEM(3001) always returns 0. My thought was to make all application logons go through a simple check at logon and if the value was zero, to dispatch a phantom, increment the value and continue. thus providing a mechanism to launch a phantom process the first time someone logs in after a reboot. i.e.: VALUE = SYSTEM(3001) IF VALUE = 0 THEN EXECUTE "PHANTOM background.process" END VALUE = VALUE + 1 ASSIGN VALUE TO SYSTEM(3001) I'm wondering why one can set the value "system(3001..3005) but there seems to be no way to interrogate the value. -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users
RE: UV - is there a coldstart equivalent
We are running UniVerse on an HP-UX box. When we want to perform certain functions during the restart, we either tie it into UniVerse's uv.rc or we run it from Unix within all the 'init' processes. Barry Rogen Senior Programmer PNY Technologies (973) 515 - 9700 ext 5327 [EMAIL PROTECTED] _ The quality of a person's life is in direct proportion to their commitment to excellence regardless of their chosen field of endeavor vince lombardi _ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Firl Sent: Tuesday, March 09, 2004 12:58 PM To: U2 Users Discussion List Subject: RE: UV - is there a coldstart equivalent Universe does not have a "coldstart" process within the database environment. The .rc scripts on UNIX have been mentioned. On Windows, the Resource Kit has a service that can be installed called "AUTOEXNT.EXE". The AUTOEXNT Service allows you to start a custom batch file -- AUTOEXNT.BAT -- when you start a computer without having to log onto the computer on which it will run. I haven't used AUTOEXNT to fire off processes within Universe, but I suppose the AUTOEXNT.BAT script would need to wait for Universe to start up, then fire up your Universe phantom. Tom Firl Columbia Ultimate > -Original Message- > From: Donald Kibbey [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 09, 2004 9:32 AM > To: [EMAIL PROTECTED] > Subject: Re: UV - is there a coldstart equivalent > > > On a Unix based system you can use the cron facilities to > perform periodic mantenance and the startup script to perform > onetime chores when the UniVerse daemons are first started. > > The same thing can be done under Windoze by using either the > builtin scheduler or a cron substitute. Replacing the > shortcut or start menu link with a script or batch file would > take care of the startup process. > > >>> [EMAIL PROTECTED] 03/09/04 12:04PM >>> > In D3 there is a coldstart process that runs when the > database is started > which is useful from an applications stand point by clearing > status files, > starting application phantoms and general cleanup. > > There does not seem to be an equivalent mechanism in Universe. > > What have people done to provide similar and reliable functionality? > > -Troy > -- > u2-users mailing list > [EMAIL PROTECTED] > http://www.oliver.com/mailman/listinfo/u2-users > > -- > u2-users mailing list > [EMAIL PROTECTED] > http://www.oliver.com/mailman/listinfo/u2-users > -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users
RE: UV - is there a coldstart equivalent
Universe does not have a "coldstart" process within the database environment. The .rc scripts on UNIX have been mentioned. On Windows, the Resource Kit has a service that can be installed called "AUTOEXNT.EXE". The AUTOEXNT Service allows you to start a custom batch file -- AUTOEXNT.BAT -- when you start a computer without having to log onto the computer on which it will run. I haven't used AUTOEXNT to fire off processes within Universe, but I suppose the AUTOEXNT.BAT script would need to wait for Universe to start up, then fire up your Universe phantom. Tom Firl Columbia Ultimate > -Original Message- > From: Donald Kibbey [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 09, 2004 9:32 AM > To: [EMAIL PROTECTED] > Subject: Re: UV - is there a coldstart equivalent > > > On a Unix based system you can use the cron facilities to > perform periodic mantenance and the startup script to perform > onetime chores when the UniVerse daemons are first started. > > The same thing can be done under Windoze by using either the > builtin scheduler or a cron substitute. Replacing the > shortcut or start menu link with a script or batch file would > take care of the startup process. > > >>> [EMAIL PROTECTED] 03/09/04 12:04PM >>> > In D3 there is a coldstart process that runs when the > database is started > which is useful from an applications stand point by clearing > status files, > starting application phantoms and general cleanup. > > There does not seem to be an equivalent mechanism in Universe. > > What have people done to provide similar and reliable functionality? > > -Troy > -- > u2-users mailing list > [EMAIL PROTECTED] > http://www.oliver.com/mailman/listinfo/u2-users > > -- > u2-users mailing list > [EMAIL PROTECTED] > http://www.oliver.com/mailman/listinfo/u2-users > -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users
Re: UV - is there a coldstart equivalent
On a Unix based system you can use the cron facilities to perform periodic mantenance and the startup script to perform onetime chores when the UniVerse daemons are first started. The same thing can be done under Windoze by using either the builtin scheduler or a cron substitute. Replacing the shortcut or start menu link with a script or batch file would take care of the startup process. >>> [EMAIL PROTECTED] 03/09/04 12:04PM >>> In D3 there is a coldstart process that runs when the database is started which is useful from an applications stand point by clearing status files, starting application phantoms and general cleanup. There does not seem to be an equivalent mechanism in Universe. What have people done to provide similar and reliable functionality? -Troy -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users
RE: UV - is there a coldstart equivalent
> -Original Message- > From: Troy Buss (Logitek Systems) [mailto:[EMAIL PROTECTED] > Subject: UV - is there a coldstart equivalent > > In D3 there is a coldstart process that runs when the database is started > which is useful from an applications stand point by clearing status files, > starting application phantoms and general cleanup. On unix, you could always hook into the uv.rc script. I don't have an example to look at right now, but just before the end of the startup stanza you could add a line something like: exec /usr/local/my.coldstart.sh where my.coldstart.sh is a custom script that can do all the things you mention. The exact paths and filename will of course vary by system and personal preference. I'm not sure what the equivalent would be for Windows. David Scoggins IT Analyst CornerStone Propane mailto:[EMAIL PROTECTED] -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users
