12 messages in org.openldap.openldap-technicalRE: Issues in Performance Tesing of O...| From | Sent On | Attachments |
|---|---|---|
| Shilpa Sethi | Nov 10, 2008 3:58 am | |
| Quanah Gibson-Mount | Nov 10, 2008 8:20 am | |
| Shilpa Sethi | Nov 14, 2008 4:18 am | |
| Quanah Gibson-Mount | Nov 14, 2008 11:33 am | |
| Shilpa Sethi | Nov 18, 2008 4:28 am |  .xls |
| Quanah Gibson-Mount | Nov 19, 2008 2:02 pm | |
| Howard Chu | Nov 19, 2008 2:23 pm | |
| Quanah Gibson-Mount | Nov 19, 2008 2:28 pm | |
| Shilpa Sethi | Nov 20, 2008 6:29 am | |
| Quanah Gibson-Mount | Nov 20, 2008 10:32 am | |
| Shilpa Sethi | Nov 24, 2008 10:35 pm | |
| Howard Chu | Nov 24, 2008 10:51 pm |
| Subject: | RE: Issues in Performance Tesing of OpenLDAP using SLAMD | |
|---|---|---|
| From: | Quanah Gibson-Mount (qua...@zimbra.com) | |
| Date: | Nov 19, 2008 2:02:36 pm | |
| List: | org.openldap.openldap-technical | |
--On Tuesday, November 18, 2008 5:59 PM +0530 Shilpa Sethi <shil...@aricent.com> wrote:
Hi,
I changed the approach for Performance testing. We developed an in-house Java based tool that uses JLDAP library to query openLDAP database.
This sounds interesting, are you going to make it publicly available?
4 injector machines were used to inject the Traffic to two openLDAP server running in Mirror-mode replication.
I've not played with a setup like this, so I can't really comment on how it would behave.
However result pattern obtained is very similar to those reported by SLAMD. PFA, the result sheet that shows query made to Openldap by 4 machines and the respective response time/interval.
Please look into the sheet attached and suggest a possible cause for such a behavior by openLDAP. In some intervals the responses returned are very high while in some others it is 0.
Have you tried this with logging enabled (start at 256 perhaps) to see what slapd reports it is doing in these intervals? I.e., does it show any incoming connections, etc? What's the slapd usage reported by top during such an interval? One of the nice things about slamd is you can set up a resource monitor on the target LDAP server as well, so you can gather stats on what it's doing during the interval periods.
--Quanah
--
Quanah Gibson-Mount Principal Software Engineer Zimbra, Inc
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