Hi,
First of all thanks everyone for their responses.
On 1/18/07, Ezra Zygmuntowicz <[EMAIL PROTECTED]> wrote:
Some linux distros have weird reporting of processes. I have seen
it
where top or ps will report 3 mongrels for each one that is really
running. And looking at your output you can see that each set of
three mongrels reported have the same port number. This means that
you really only have 3 mongrels running because only one can be
running per port at a time.
The output of 'ps aefux' is below. Though I don't understand ps completely
it seems that the one mongrel process spawns another child process, which in
turns spawns a third one.
ssinghi 22988 0.7 11.3 142900 102572 ? S 21:53 0:24
/usr/bin/ruby1.8 /usr/bin/mongrel_rails start -d -e production -p 8000 -a
127.0.0.1 -P log/mon
ssinghi 22998 0.0 11.3 142900 102572 ? S 21:54 0:00 \_
/usr/bin/ruby1.8 /usr/bin/mongrel_rails start -d -e production -p 8000 -a
127.0.0.1 -P log
ssinghi 23000 0.0 11.3 142900 102572 ? S 21:54 0:00 \_
/usr/bin/ruby1.8 /usr/bin/mongrel_rails start -d -e production -p 8000 -a
127.0.0.1 -P
ssinghi 22991 0.9 12.0 131192 108844 ? S 21:53 0:33
/usr/bin/ruby1.8 /usr/bin/mongrel_rails start -d -e production -p 8001 -a
127.0.0.1 -P log/mon
ssinghi 22996 0.0 12.0 131192 108844 ? S 21:54 0:00 \_
/usr/bin/ruby1.8 /usr/bin/mongrel_rails start -d -e production -p 8001 -a
127.0.0.1 -P log
ssinghi 22997 0.0 12.0 131192 108844 ? S 21:54 0:00 \_
/usr/bin/ruby1.8 /usr/bin/mongrel_rails start -d -e production -p 8001 -a
127.0.0.1 -P
ssinghi 22994 0.5 10.1 127980 92160 ? S 21:53 0:18
/usr/bin/ruby1.8 /usr/bin/mongrel_rails start -d -e production -p 8002 -a
127.0.0.1 -P log/mon
ssinghi 22999 0.0 10.1 127980 92160 ? S 21:54 0:00 \_
/usr/bin/ruby1.8 /usr/bin/mongrel_rails start -d -e production -p 8002 -a
127.0.0.1 -P log
ssinghi 23001 0.0 10.1 127980 92160 ? S 21:54 0:00 \_
/usr/bin/ruby1.8 /usr/bin/mongrel_rails start -d -e production -p 8002 -a
127.0.0.1 -P
As far as the memory usage goes, that sounds like a classic memory
leak in your rails app. I have seen mongrel balloon like that when
people add an extra :include directive to a find that ends up loading
a ton of extra records into memory. If you are loading more then a
few hundred ActiveRecords into memory on any one page then that will
surely cause memory to ballon like this.
Yes, we are doing eager loading at many places, and there is a sitemap part
where about 10,000 records are loaded. I will try to optimize those parts,
and see
if they make a difference.
A little more info about your app and what it does woudl help debug.
Are you using Rmagcik?
Yes we are using that. I will look into mini-magick. Joey thanks for that.
Are you useing send_file or send_data to
stream out large content?
We are streaming data for images.
We are also using ferret and mediacloth.
I guess, I need to investigate more on the above mentioned things.
Thanks a lot.
Surendra Singhi
On Jan 17, 2007, at 10:36 AM, Michael Biven wrote:
> How are the mongrel started (cron, launchd, etc)? I had something
> similar happen to me, but I think it was from the cluster being
> started by root instead of the user I wanted to start it. It gave me
> an extra set of mongrel processes running that mongrel_rails
> cluster::stop wouldn't stop.
>
> Michael B.
>
> On 1/17/07, Surendra Singhi <[EMAIL PROTECTED]> wrote:
>> Hi,
>> I have mongrel 0.3.14, with ruby 1.8.5, rails 1.1.6 and mongrel
>> cluster
>> 0.2.1, on debian sage 3.1 with apache 2.0, and fastthread 0.6.1.
>> I am load balancing 3 mongrel processes using the random port trick.
>>
>> When I start mongrel the processes have about 60MB, but after
>> some hour of
>> usage the memory ballons upto more than 180MB and the site becomes
>> terribly
>> slow. Forcing me to restart mongrel cluster.
>>
>> Also, it reports me 9 mongrel processes instead of three. I am not
>> able to
>> understand why that's happening. Are really 9 mongrel processes
>> started
>> instead of three?
>>
>> Please help. Thanks.
>
> --
> Michael Biven
> [EMAIL PROTECTED]
> http://biven.org
> _______________________________________________
> Mongrel-users mailing list
> Mongrel-users@rubyforge.org
> http://rubyforge.org/mailman/listinfo/mongrel-users
-- Ezra Zygmuntowicz
-- Lead Rails Evangelist
-- [EMAIL PROTECTED]
-- Engine Yard, Serious Rails Hosting
-- (866) 518-YARD (9273)
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