Re: (ITS#6396) slow reads on slaves after many changes in master

[rolnas@gmail.com]

On 2009.11.23, at 20:12, Quanah Gibson-Mount wrote:

> --On Monday, November 23, 2009 8:09 PM +0200 rolnas@gmail.com wrote:
>=20
>> P.S. I found myself cachesize < total number of entries. Probably I
>> lowered it trying to workaround this problem.
>=20
> Yes, please raise it.  Also, please try the current CVS as I noted.  =
Also, what BDB version of software are you using?

I raised (twice) to:

cachesize      20000
idlcachesize   100000

but it didn't help.
My test (ldapsearch of entire DB) usually takes ~2s, after changes (the =
same sequence of deletes/adds) - ~18s on master, ~60s on mirror, ~140s =
on slave. After restart, again ~2s.

BDB software is 4.6.21.4 (from FreeBSD ports as OpenLDAP itself).

I have no time (sorry) to try compile and run current CVS version.

Regards, Rolandas Naujikas

> Thanks!
>=20
> --Quanah
>=20
> --
>=20
> Quanah Gibson-Mount
> Principal Software Engineer
> Zimbra, Inc
> --------------------
> Zimbra ::  the leader in open source messaging and collaboration