293372Re: Weird throttling since midnight
- May 26, 2013On Sun, May 26, 2013 at 09:51:41AM -0400, Wietse Venema wrote:
> The Doctor:Correct about the word "improved". I might have a 4.7 or 4.8
> > On Sun, May 26, 2013 at 06:37:17AM -0600, The Doctor wrote:
> > > On Sun, May 26, 2013 at 08:04:47AM -0400, Wietse Venema wrote:
> > > > The Doctor:
> > > > > All right, I have been getting a lot of irregular throttling
> > > > > since Saturday midnight.
> > > > >
> > > > > May 25 08:05:53 doctor postfix/postscreen: fatal: set DB cache size 131072: Invalid argument
> > > >
> > > > Has your Berkeley DB library been updated? Perhaps you can revert
> > > > the update.
> > > >
> > > > Apparently, their set_cachesize() function now returns an error
> > > > when Postfix sets the cache size.
> > > >
> > > > This code has not changed since Postfix 2.0, more than 10 years ago:
> > I take it back.
> > Also the BDB is 5.3.21 which is the latest.
> > Here are the logs from the latest backfire
> That is the same Berkeley DB error. You can stop posting these now.
> You may make more progress if you can back out the "improved"
> Berkeley DB library.
lying around let me check.
In the mean time
>What tweak is needed in the main.cf to make such a change?
> You may also play with berkeley_db_read_buffer_size. The Berkeley
> DB documentation promises that they accept buffer sizes of 20kB or
> more, and their default is 256kB. If someone has screwed up Berkeley
> DB, then perhaps it helps to specify berkeley_db_read_buffer_size
> of 262144 (262144 = 256*1024). Hopefully they still accept that.
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