On Wed, 3 Aug 2011 21:15:16 +0200 "Giampaolo Tomassoni" <giampa...@tomassoni.biz> wrote:
> > Except that in real life, the write transaction lasts much longer, > What is it? 60ms? Granted. It is still a 1/100 of 6s. No, write transactions are expensive because they (should) invoke a fsync() system call. On a system with several contending processes and busy disks, that can take hundreds of milliseconds or more. Again, I'm speaking from experience here. I'm not just theorizing. > Ok. Let me see where in the code you see the transaction is completed > soon after the token scores are fetched. I'm not familiar enough with the SpamAssassin code to go searching (nor do I care since we use neither SQL nor SA for Bayes.) I don't see any commits in the read path, however. If MySQL automatically opens a transaction whenever you do a SELECT, then yes... that could be a problem. Regards, David.
