Now THIS is getting interesting! I saw something similar twice. Once a hashed file header was corrupted with a line that should have been written into a como file. Another when a file had data from uv/SYS.MESSAGE written in it. Both occurred in the context of a transaction logging failure. I've been a big fan of TxLg, but this unresolved issue has been a showstopper for me.
TxLg is supposed to make a system more robust, but this reminds me of a time when the UPS crashed in a Miami thunderstorm and caused major damage for the client. I called my wife in Dallas that evening and told her I'd be late - 4 days late - for supper. The company allowed me to expense new socks and underwear, but not pants and shirt. CDS -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Thursday, February 17, 2005 3:45 AM To: u2-users@listserver.u2ug.org Subject: Memo: Re: [U2] Uv Error Hi Rudy, this is a real mystery then. <Donning deer stalker hat and smoking pipe> We had a problem once with the number of open files in the rotating file pool getting confused. As you probably know, you can open many more files in a Universe program then the os allows. Universe will only keep open, at the os level, the number of files specified by the MFILES config parameter, closing and opening files as needed. Providing your MFILES number is less than the os per process limit of open files, theoretically there should be no problem. However, we had a program that occasionally would fall over with a write failure when writing to a particular file. We eventually tracked it down to Universe not having re-opened the file at the os level. Looking at the open files that that process had open at the os level, it was clear that Universe was very confused about what was open and what wasnt (there were some files that were opened multiple times!). We increased the gap between the MFILES parameter and the os per process limit, and that fixed the problem. Or, as you say, the index file may be getting locked or renamed by some process. The question is, which process. I would be tempted to write a small program which attempts to open the file every 10 minutes or so, and logging the times when it failed to do so. This process could also take a snapshot of the running processes at the time of the failure. Maybe that would help in tracking down the problem. "Cooper, Rudy" <[EMAIL PROTECTED] on 16 Feb 2005 23:27 Please respond to u2-users@listserver.u2ug.org Sent by: [EMAIL PROTECTED] To: <u2-users@listserver.u2ug.org> cc: bcc: Subject: Re: [U2] Uv Error Actually the message is a UV message and not coming from the applications program. Line 8 of the applications program is just a regular UV OPEN statement. And "Yes" I have ruled out the backup and antivirus software. It's the oddest thing. It will be in the middle of processing, reading/writing to the file then all of a sudden the file is gone. It's like something came along while it was processing and renamed or locked up the file, but there are no other processes runing during that time of the day that would affect it. <<Date: Wed, 16 Feb 2005 10:35:55 +0000 From: [EMAIL PROTECTED] Subject: Memo: Re: [U2] Uv Error Hi Rudy, Doesnt look like a UV message. Do you have the source of the program? It would be useful to know what line 8 is. Have you ruled out a backup locking the file?>> Rudy Cooper Sage Publications I.T Development Thousand Oaks, California (805) 499-0721 #7724 ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ ************************************************************ HSBC Bank plc may be solicited in the course of its placement efforts for a new issue, by investment clients of the firm for whom the Bank as a firm already provides other services. It may equally decide to allocate to its own proprietary book or with an associate of HSBC Group. This represents a potential conflict of interest. HSBC Bank plc has internal arrangements designed to ensure that the firm would give unbiased and full advice to the corporate finance client about the valuation and pricing of the offering as well as internal systems, controls and procedures to identify and manage conflicts of interest. 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