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Re: Very slow ldapserach

To: Saša-Stjepan Bakša <ssbaksa@gmail.com>, openldap-technical@openldap.org
Subject: Re: Very slow ldapserach
From: Quanah Gibson-Mount <quanah@zimbra.com>
Date: Wed, 01 Apr 2015 09:19:03 -0700
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--On Tuesday, March 31, 2015 4:09 PM +0200 Saša-Stjepan Bakša<ssbaksa@gmail.com> wrote:








Hi,

Year ago we have tested openldap with back_mdb and it was fantastic.
Search worked as a charm. Database was filled with 20 mil. users and
serach returned some 20 k results per sec (my colegue did the test).

Now we need that setup for some tests and we encountered very slow
response - 1 search for user data with some aliased data need 8 to 20
seconds to be retrieved.

ldapsearch  -h 10.14.252.104 -p 389 -D cn=admin,dc=spr -w test -s sub -a
always -b num=1234563123,dc=num,dc=SPR ObjectClass=*

num=1234563123,dc=num,dc=SPR is alias to uid
aliasedObjectName: uid=1234563123,ds=USERS,o=STANDARD,dc=spr


Have you tried using writemap for the lmdb db?

--Quanah


--

Quanah Gibson-Mount
Platform Architect
Zimbra, Inc.
--------------------
Zimbra ::  the leader in open source messaging and collaboration

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