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  3. May 2005

Re: Commitment Control

Al

Al Barsa wrote:

Commitment control is another animal.  Updates records remained locked
under commitment control until a COMMIT or a ROLLBACK (these are the terms
in CL, shorter terms exist in RPG where these are more frequently used) is
issued.  These performance problems, due to locking, can be major, and are
completely controllable with coding style.

In System/38 days, the way to avoid this was to read files opened for read only, without lock, in one program and then lock the records before update and commit in a second program, and this never gave me any performance problems. No longer necessary today.

Rob



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