Do you mean logically corrupt (your records are wrong) or physically corrupt (you have to use jcheck)? You cannot physically corrupt a file by writing to it without taking a lock, you will just get trash results in your file. When are you discovering the data is corrupt? There are lots of things that you can do to actually corrupt it and some things (such as running jcheck when people are writing to the file) that might make you think it is corrupt.
Jim *From:* [email protected] [mailto:[email protected]] *On Behalf Of *Simon Verona *Sent:* Tuesday, April 26, 2011 12:39 PM *To:* [email protected] *Subject:* File Corruption... Causes? This issue is generic, and relates to a number of similar jBASE 3.4.10 based systems running Windows Server 2003. We have an ongoing issue with file corruptions in j4 format files. The problem appears somehow to be application driven - I suspect this because across a number of systems, the files that corrupt are always the same ones... So, I'm looking for inspiration at an application level as to what could cause file corruptions. One thought I had was a WRITE without previously doing a READU. I've not managed to duplicate the issue doing this, but it's difficult to simulate a multi-user test that replicates what the application might be doing. Does anybody know if this *could* be the cause, or know of some other application (data-basic) issue that could cause a J4 file to be corrupted? thanks in advance Simon Verona -- Please read the posting guidelines at: http://groups.google.com/group/jBASE/web/Posting%20Guidelines IMPORTANT: Type T24: at the start of the subject line for questions specific to Globus/T24 To post, send email to [email protected] To unsubscribe, send email to [email protected] For more options, visit this group at http://groups.google.com/group/jBASE?hl=en -- Please read the posting guidelines at: http://groups.google.com/group/jBASE/web/Posting%20Guidelines IMPORTANT: Type T24: at the start of the subject line for questions specific to Globus/T24 To post, send email to [email protected] To unsubscribe, send email to [email protected] For more options, visit this group at http://groups.google.com/group/jBASE?hl=en
