I have an application that uses DBISAM v3 in local connection mode to access a table on a
network share on a windows server. On some PCs, (Windows Vista) I get this error:

"DBISAM Engine Error # 10226 Cannot read unlock the table"

I looked up this error in Elevate's online documentation, and it said:
"This error should never occur so if it does you should contact Elevate Software
immediately for a resolution to the problem."

Also, with this same application and the same PCs when the application used to be hosted
on a VMWare Server system, I used to get errors saying that it could not write lock the
same table. Why would I get all of these locking and concurrency issues on just one table?

Thanks...

Marcus,

<< I have an application that uses DBISAM v3 in local connection mode to
access a table on a network share on a windows server. On some PCs, (Windows
Vista) I get this error:

"DBISAM Engine Error # 10226 Cannot read unlock the table" >>

Can you reproduce the error ?

<< Also, with this same application and the same PCs when the application
used to be hosted on a VMWare Server system, I used to get errors saying
that it could not write lock the same table. Why would I get all of these
locking and concurrency issues on just one table? >>

DBISAM uses OS calls for its locking.  If there is any type of issue between
DBISAM and the actual OS, then it is possible for such errors to occur.

--
Tim Young
Elevate Software
www.elevatesoft.com

"Tim Young [Elevate Software]" wrote:

Marcus,

<< I have an application that uses DBISAM v3 in local connection mode to
access a table on a network share on a windows server. On some PCs, (Windows
Vista) I get this error:

"DBISAM Engine Error # 10226 Cannot read unlock the table" >>

Can you reproduce the error ?

<< Also, with this same application and the same PCs when the application
used to be hosted on a VMWare Server system, I used to get errors saying
that it could not write lock the same table. Why would I get all of these
locking and concurrency issues on just one table? >>

DBISAM uses OS calls for its locking.  If there is any type of issue between
DBISAM and the actual OS, then it is possible for such errors to occur.

--
Tim Young
Elevate Software
www.elevatesoft.com

Hey Tim,

No, the error doesn't seem to have a particular trigger that I can reproduce, and there
doesn't seem to be any error logs on the server or the workstation that suggest any other
problems, so I guess I'm stumped at this point... thanks for the help anyways... I'll just
chalk this one up to windows weirdness.

Thanks.

Marcus,

<< No, the error doesn't seem to have a particular trigger that I can
reproduce, and there doesn't seem to be any error logs on the server or the
workstation that suggest any other problems, so I guess I'm stumped at this
point... thanks for the help anyways... I'll just chalk this one up to
windows weirdness. >>

Are you using any 3rd party controls, especially grids ?

--
Tim Young
Elevate Software
www.elevatesoft.com