Re: [rt-users] RT 4.0.2 too much CPU hungry !

[Sergio Charpinel Jr.]

There was a problem in RT 4.0 with JS minify. I think it was fixed in
4.0.2 though.
You can search for js minify in the mailing list and try it.

Hope this helps.

Hugs.

2011/10/13 Michele Pinassi :
> Dear bart,
>
> thanks for you suggestion but still RT is too slow. In the log i have a
> lot of warnings like:
>
> [Thu Oct 13 08:33:41 2011] [warning]: Use of uninitialized value
> $location in regexp compilation at
> /usr/local/share/perl/5.10.1/Plack/Handler/Apache2.pm line 105.
> (/usr/local/share/perl/5.10.1/Plack/Handler/Apache2.pm:101)
>
> Any hint ?
>
> Michele
>
> On 11/10/2011 12:34, Bart wrote:
>> Difficult to say.
>>
>> We run RT 4.0.2 on a Debian 6 environment as well (manual
>> installation, manual perl dependency installation via cpan, etc.)
>>
>> The only thing I see in your posted config is an error in the way your
>> plugins are included:
>
> --
> Michele Pinassi
> Servizio Reti, Sistemi e Sicurezza Informatica
> Università degli Studi di Siena
> tel: 0577.(23)2169
> https://sites.google.com/a/unisi.it/o-zone/
>
>
>
> 
> RT Training Sessions (http://bestpractical.com/services/training.html)
> *  San Francisco, CA, USA — October 18 & 19, 2011
> *  Washington DC, USA — October 31 & November 1, 2011
> *  Barcelona, Spain — November 28 & 29, 2011
>



-- 
Sergio Roberto Charpinel Jr.

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Re: [rt-users] RT 4.0.2 too much CPU hungry !

[Michele Pinassi]

Dear bart,

thanks for you suggestion but still RT is too slow. In the log i have a
lot of warnings like:

[Thu Oct 13 08:33:41 2011] [warning]: Use of uninitialized value
$location in regexp compilation at
/usr/local/share/perl/5.10.1/Plack/Handler/Apache2.pm line 105.
(/usr/local/share/perl/5.10.1/Plack/Handler/Apache2.pm:101)

Any hint ?

Michele

On 11/10/2011 12:34, Bart wrote:
> Difficult to say.
>
> We run RT 4.0.2 on a Debian 6 environment as well (manual
> installation, manual perl dependency installation via cpan, etc.)
>
> The only thing I see in your posted config is an error in the way your
> plugins are included: 

-- 
Michele Pinassi
Servizio Reti, Sistemi e Sicurezza Informatica
Università degli Studi di Siena
tel: 0577.(23)2169
https://sites.google.com/a/unisi.it/o-zone/




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Re: [rt-users] RT 4.0.2 too much CPU hungry !

[Kevin Falcone]

On Tue, Oct 11, 2011 at 09:22:16AM +0200, Michele Pinassi wrote:
> Hi all,
> 
> i've installed RT 4.0.2 in my office over a Debian. Here's apache2 SSL
> config:
> PerlSetVar MasonStaticSource true

This is set by RT and has been for a long time

> PerlSetVar MasonBufferPreallocateSize 2048000
> PerlSetVar MasonDataCacheDefaults "cache_class=> MemoryCache,
> cache_depth => 4"
> PerlSetVar MasonPreloads '/Elements/*'

What are these for?  Are they helping?  They're not standard parts of
a config.

You also don't show the config that says what kind of apache worker
you're using.

> The problem is that our apache2 istance use almost 100% of CPU and over
> 1GByte of RAM (plus some swap...):
> 
>   PID USER  PR  NI  VIRT  RES  SHR S %CPU %MEMTIME+  COMMAND   
>  6984 www-data  20   0 87936  62m 4016 R 99.4  6.1   0:07.03
> apache2   
> 
> 
>  7012 root  20   0  2436 1136  896 R  0.7  0.1   0:00.14 top 
> 
> and web is very slow responsiveness...

Are you swapping?  Any time apache goes into swap, it spends a lot of
time swapping data in and out and that ends poorly.

If you cannot give the box more ram, you probably want to limit the
number of children apache spawns.

If you believe the CPU burn is coming from RT itself, you can enable
MasonX::Profiler as documented in RT_Config.pm and see what component
is taking the most time.

-kevin


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Re: [rt-users] RT 4.0.2 too much CPU hungry !

[Bart]

Difficult to say.

We run RT 4.0.2 on a Debian 6 environment as well (manual installation,
manual perl dependency installation via cpan, etc.)

The only thing I see in your posted config is an error in the way your
plugins are included:


Set( @Plugins, qw(RT::Extension::JSGantt RTx::Calendar) );
Set( @Plugins, qw(RT::Authen::ExternalAuth) );

Should become:

Set(@Plugins, (qw(RT::Extension::JSGantt RTx::Calendar
RT::Authen::ExternalAuth)));

As example, this is how our plugin line is displayed:

Set(@Plugins, (qw(RT::Extension::SLA RT::Extension::HistoryFilter
RT::Extension::ResetPassword RT::Extension::MergeUsers)));

I have no clue if this is the error but the way I see it you should edit it
to match the syntax (as displayed in the comments inside the
RT_SiteConfig.pm).

Did you experience the same issues during testing?


-- Bart


2011/10/11 Michele Pinassi 

> Hi all,
>
> i've installed RT 4.0.2 in my office over a Debian. Here's apache2 SSL
> config:
>
> 
> 
>ServerAdmin webmaster@localhost
>
>AddDefaultCharset UTF-8
>
>DocumentRoot "/opt/rt4/share/html"
>
>Order allow,deny
>Allow from all
>
>
>SetHandler modperl
>PerlResponseHandler Plack::Handler::Apache2
>PerlSetVar psgi_app /opt/rt4/sbin/rt-server
>
>PerlSetVar MasonStaticSource true
>PerlSetVar MasonBufferPreallocateSize 2048000
>PerlSetVar MasonDataCacheDefaults "cache_class=> MemoryCache,
> cache_depth => 4"
>PerlSetVar MasonPreloads '/Elements/*'
>
>
>use Plack::Handler::Apache2;
>Plack::Handler::Apache2->preload("/opt/rt4/sbin/rt-server");
>
>
>
>Options FollowSymLinks
>AllowOverride None
>
>
>
>Options Indexes FollowSymLinks MultiViews
>AllowOverride None
>Order allow,deny
>allow from all
>
>
> and this is RT_SiteConfig.pm:
>
> root@centralino:/opt/rt4/etc# cat RT_SiteConfig.pm
>
> ...
>
> Set($WebPort, 443);
>
> Set( @Plugins, qw(RT::Extension::JSGantt RTx::Calendar) );
> Set( @Plugins, qw(RT::Authen::ExternalAuth) );
>
> ...
>
> We use LDAP for external auth and all RT works under SSL for security
> reason.
>
> The problem is that our apache2 istance use almost 100% of CPU and over
> 1GByte of RAM (plus some swap...):
>
>  PID USER  PR  NI  VIRT  RES  SHR S %CPU %MEMTIME+  COMMAND
>  6984 www-data  20   0 87936  62m 4016 R 99.4  6.1   0:07.03
> apache2
>
>  7012 root  20   0  2436 1136  896 R  0.7  0.1   0:00.14 top
>
> and web is very slow responsiveness...
>
> Any hint ?
>
> Michele
>
> --
> Michele Pinassi
> Servizio Reti, Sistemi e Sicurezza Informatica
> Università degli Studi di Siena
> tel: 0577.(23)2169
> https://sites.google.com/a/unisi.it/o-zone/
>
>
>
> 
> RT Training Sessions (http://bestpractical.com/services/training.html)
> *  San Francisco, CA, USA — October 18 & 19, 2011
> *  Washington DC, USA — October 31 & November 1, 2011
> *  Barcelona, Spain — November 28 & 29, 2011
>

RT Training Sessions (http://bestpractical.com/services/training.html)
*  San Francisco, CA, USA — October 18 & 19, 2011
*  Washington DC, USA — October 31 & November 1, 2011
*  Barcelona, Spain — November 28 & 29, 2011