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Deadlock in Visual FoxPro
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Problèmes
Titre:
Deadlock in Visual FoxPro
Versions des environnements
Visual FoxPro:
VFP 7 SP1
OS:
Windows XP
Database:
Visual FoxPro
Divers
Thread ID:
01023732
Message ID:
01023732
Vues:
90
Hi folks,

Every 3 to 4 weeks I experience a deadlock that would require starting bunch of servers becuase no user can save records. Basically there are automated processes that run 24/7 and users compete to lock records to update through an App but the automated processes issue explicit 'Rlock' and 'unlock' commands while the App that users are using have only the 'unlock all' command that seems to produce ' can not lock record' scrolling wait window. The frequency of such occurance doesn't suggest a coding issue that is easy to spot.

When I traced through the code in the users App while the deadlock was in place, I found to my surprise that it's triggered by a line that has 'unlock all'.

Did anyone experience such a problem? I would be interested in getting some ideas on what could be taking place here.

Thanks in advance.
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