QVD lock issue reasons

[kishorj1982]

Hi All,

May I know why QVD lock issue occurs.

If 2 applications simultaneously use same QVD then sometimes this issue is not occurs.

However, if one application is writing the QVD and at the same time other application reading the QVD then this issue is always there.

Please correct me if I am wrong.

Thanks

[shiveshsingh]

Hey

You need to stop the qv.exe and then execute the qvd load, or wait for server/publisher tasks to get completed.

[tresesco]

You are right. And in the second case, the lock is required to avoid inconsistency in data read.

[marcus_sommer]

It's the normal behaviour that an already accessed file is locked from the OS. As far as possible should a simultaneously access always be avoided - then means you need some efforts to schedule your tasks in this way.

If this isn't possible you could use an error-handling with ERRORMODE and check if there is an error and to repeat your load/store maybe 5 times within a loop with n seconds waiting-time between the trials and/or to do anything else.

- Marcus