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Date: Fri, 4 Oct 2013 18:12:35 +0530
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Subject: Re: Performance - Initiating over 100 simultaneous replications.
From: Ramkrishna Kulkarni <ramkrishna.kulkarni@gmail.com>
To: user@couchdb.apache.org
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That worked! I can now see thousands of connections. Thanks a lot.


On Fri, Oct 4, 2013 at 4:01 PM, Robert Newson <rnewson@apache.org> wrote:

> One common gotcha with limits.conf is that couchdb su's to the couchdb
> user and /etc/pam.d/su in debian/ubuntu defaults to *not* respecting
> limits.conf, you need to enable it.
>
> B.
>
> On 4 Oct 2013, at 02:38, Ramkrishna Kulkarni <
> ramkrishna.kulkarni@gmail.com> wrote:
>
> > I'm initiating over 100 one shot replications to as many servers from a
> > central server. When I do this, central CouchDB slows down a lot
> (Requests
> > to DBs time out) even though enough system resources are available. I do
> > not see more than 600 connections (netstat -an | grep -i established | wc
> > -l) being opened at the time of replication. My config looks something
> like
> > this:
> >
> > [couchdb]
> > max_dbs_open = 10000
> >
> > [httpd]
> > max_connections = 10240
> >
> > [replicator]
> > worker_processes = 30
> > http_connections = 30
> >
> > /etc/security/limits.conf
> > * - nofile 65535
> >
> > ulimit -n
> > 65535
> >
> > This is CouchDB 1.4.x on Ubuntu 12.04 32-bit, 8-cores, 6GB RAM.
> >
> > I was hoping to see at least 3000 connections - 30 per replication. Is
> > there some other config I'm missing?
> >
> > Thanks,
> > Ram
>
>

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