| Version 1.9 Build 803
|
|
Next: TaQL
Up: Known Shortcomings
Previous: Standards
Table locking can be problematic if not done properly.
Locking can only be done on the entire table, so for full multi user
access a lock should be held as short as possible. On the other hand
releasing a lock means that the buffers needs to be flushed to disk,
so the extra IO involved could mean that one wants to hold the lock
as long as possible.
The AutoLocking mode was invented to solve this problem. However,
it has the drawback that it may take a few seconds before the system
detects that the AutoLock should be released. This is especially the
case in a glish client which might be idle for some time. It is now
possible to define the AutoLock inspect time in aipsrc, so one can set
it as short as needed.
Next: TaQL
Up: Known Shortcomings
Previous: Standards
Please send questions or comments about AIPS++ to aips2-request@nrao.edu.
Copyright © 1995-2000 Associated Universities Inc.,
Washington, D.C.
Return to AIPS++ Home Page
2004-08-28
News