Re: Checkpoint less frequently
From: Greg Hudson <ghudson_at_MIT.EDU>
Date: 2003-02-21 19:20:55 CET
On Fri, 2003-02-21 at 13:03, Branko Èibej wrote:
If the monitor process is started automatically, then it may have been
The following discipline would seem to work, without the need for a
* Wrap a guard file around the database, per my earlier idea.
* Set the lock timeout (at db creation time).
* If we time out on a lock, fail the transaction, grab a write lock on
But it may be inefficient in some cases:
* If we erroneously time out on a lock, we will still succeed
* If multiple processes hit the stale lock, they will all run
I also wonder how many of these problems go away if you instruct
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