I have one question about this 'c' program #define UCB 0 /* set to 0 for System V or 1 for Berkeley */
What should the above be set to? We are running aix 5.2, my gut feeling is System V Thanks, Dougc -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Hona, David S Sent: Tuesday, December 18, 2007 9:52 PM To: u2-users@listserver.u2ug.org Subject: RE: [U2] anyone seen this error before? Here is Dave Church's solution/workaround to address the long outstanding UV & cron issue, it's a little C program... -----Original Message----- From: Hona, David S Sent: Thursday, January 19, 2006 9:02 PM To: 'u2-users@listserver.u2ug.org' Subject: RE: [U2] [UV] Calling Universe from CRON I believe that issue is still there...haven't check lately... Dave Church wrote & posted this C code on Info-Ardent and in comp.databases.pick to solve the problem... /* This c routine can be used to start universe processes in cron or at. Normally only one process can run at a time because they use the same printer memory segment. simply replace the 'uv' command with 'uvcron' for example: uvcron 'BATCH-REPORT1' > dave.mail */ #define UCB 0 /* set to 0 for System V or 1 for Berkeley */ main (argc, argv, envp) int argc; char *argv[], *envp[]; { #if UCB (void)setpgrp(0,getpid()); #else (void)setpgrp(); #endif /* CHANGE PATH TO MATCH YOUR INSTALLATION */ (void)execve("/u1/uv/bin/uv",argv,envp); /* We should never come back here */ printf("exec failed \n"); exit(-1); } -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Clifton Oliver Sent: Tuesday, December 18, 2007 3:20 AM To: u2-users@listserver.u2ug.org Subject: Re: [U2] anyone seen this error before? Because that id is used to determine the id of the printer memory segment for the process. If you have two UV processes with the same gpid, they end up sharing the memory segment. This is where your MFILE structures are stored (rotating file pool), among other things. Pointers get mixed up, and you end up getting some files data written into a completely different file, usually corrupting the group or even the file header, depending on how angry the computer gods are that day. -- Regards, Clif ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ -- This message has been scanned for viruses and dangerous content by SecureMail, and is believed to be clean. ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
