[Date Prev][Date Next] [Chronological] [Thread] [Top]

Re: syncrepl consumer is slow

To: Quanah Gibson-Mount <quanah@zimbra.com>, OpenLDAP-devel@openldap.org
Subject: Re: syncrepl consumer is slow
From: Howard Chu <hyc@symas.com>
Date: Thu, 29 Jan 2015 04:34:28 +0000
In-reply-to: <AE2B3274B8FBC7C5DBB5226E@quanah-mac-2.local>
References: <54C9A511.8000800@symas.com> <AE2B3274B8FBC7C5DBB5226E@quanah-mac-2.local>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:37.0) Gecko/20100101 Firefox/37.0 SeaMonkey/2.34a1

Quanah Gibson-Mount wrote:



--On January 29, 2015 at 3:12:17 AM +0000 Howard Chu <hyc@symas.com> wrote:

This would only be used for writes that are part of a refresh phase. In
persist mode the provider and consumers' write speeds should be more
closely matched so it wouldn't be necessary or useful.


I've had a few cases on extremely busy systems with multiple
replicas/mmr nodes where they literally never catch up.  Only way I've
been able to resolve those cases is to stop them, slapcat the master,
slapadd, and restart.  Hopefully this change would alleviate that scenario.

Yes, I'm seeing the same thing. And yes, that's my hope as well. Notsure if it's enough; like I said there are other performance issues inthe consumer code.


--
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/

References:
- syncrepl consumer is slow
  - From: Howard Chu <hyc@symas.com>
- Re: syncrepl consumer is slow
  - From: Quanah Gibson-Mount <quanah@zimbra.com>

Prev by Date: Re: syncrepl consumer is slow
Next by Date: Re: syncrepl consumer is slow
Index(es):
- Chronological
- Thread