Please help with optimization
nginx-forum at nginx.us
Thu Oct 4 11:32:19 UTC 2012
Our DB setup is an external RDS MySql Large DB Instance: 7.5 GB memory, 4
ECUs (2 virtual cores with 2 ECUs each), 64-bit platform, High I/O Capacity.
There is not much I can do to increase the performance on this but I don't
think it's whats causing the problem.
The web server has no traffic (except for me) and the DB is only being used
for one other site. Based on its reports, it looks like if we did this
migration at peak traffic time, it still won't touch 80% of DB usage.
Stefan Caunter Wrote:
> Performance issues with large forum migrations are usually database
> i/o specific; nginx is good because it gets out of the way and sends
> the php responses from fpm. Standard php configuration for nginx will
> get it up and running, but you will want to tune php to suit the forum
> software, and devote most of the system resources to database, which
> will consume most of them. When that happens, php waits, fastcgis pile
> up, and nginx will hit timeouts waiting for php, which is waiting for
> mysql. Make sure mysql has good write performance and plenty of
> memory. Beware of expensive forum plugins (use slow logging to spot
> horrible queries that make php wait).
> On Thu, Oct 4, 2012 at 12:21 AM, otherjohn <nginx-forum at nginx.us>
> > Hello All,
> > I am looking to optimize my nginx setup but am new to nginx and some
> of the
> > settings. Currently the webserver is set to just default settings
> and on
> > using an forum import script to migrate our forum from another
> softward I am
> > getting "upstream timed out (110: Connection timed out) while
> > response header from upstream".
> > Could someone give me some suggestions?
> > I am running an Amazon ec2 Ubuntu Precise 64 server with the
> > hardware setup
> > 7.5 GB memory
> > 4 EC2 Compute Units (2 virtual cores with 2 EC2 Compute Units each)
> > 850 GB instance storage
> > 64-bit platform
> > I/O Performance: High
> > I am running nginx 1.2.4 and PHP 5.3.10-1ubuntu3.4 (fpm-fcgi)
> > The website will be running a forum with on average 2000 visitors at
> > given time, over 60k members and 4 million posts.
> > I need help with the following setttings that currently only have
> > defaults set.
> > php-fpm's php.ini
> > php-fpm's pool configuration
> > nginx.conf
> > anything else you can suggest.
> > Thanks so much!
> > Posted at Nginx Forum:
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Posted at Nginx Forum: http://forum.nginx.org/read.php?2,231369,231384#msg-231384
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