Environment variable PKG_RESOURCES_CACHE_ZIP_MANIFESTS

[bcostacurta]

Hello,

my Trac version is v1.0,8

In the Apache log :

(..) Warning: Detected setuptools version 5.5.1. The environment variable 'PKG_RESOURCES_CACHE_ZIP_MANIFESTS' must be set to avoid significant performance degradation., referer: http://costacurta.org/trac

In the setuptools documentation I found the following explanaton :

(..)

If you're using setuptools versions 5.4 through 5.6, the environment variable PKG_RESOURCES_CACHE_ZIP_MANIFESTS should be set, otherwise the performance of Trac will be significantly degraded.

• Linux: $export PKG_RESOURCES_CACHE_ZIP_MANIFESTS=1

(..)

however I'm confused about the correct location and/or user env. variable where to define this variable.

My Trac server is hosted under Debian + Apache.

Thanks for any clue or help.

Bruno

[RjOllos]

Which version of Apache are you running?

You could try using SetEnv in the Apache configuration:

SetEnv PKG_RESOURCES_CACHE_ZIP_MANIFESTS 1

http://httpd.apache.org/docs/2.4/mod/mod_env.html#setenv 

[Bruno Costacurta]

I'm using Apache 2.4

Yes I already defined in the Apache config file :

SetEnv PKG_RESOURCES_CACHE_ZIP_MANIFESTS 1

with Stop / re-start Apache, but it does'nt work.

Bye

Bruno

[Ryan Ollos]

On Wed, Jul 29, 2015 at 10:02 AM, Bruno Costacurta <bcost...@gmail.com> wrote:

I'm using Apache 2.4

Yes I already defined in the Apache config file :

SetEnv PKG_RESOURCES_CACHE_ZIP_MANIFESTS 1

with Stop / re-start Apache, but it does'nt work.

Bye

Bruno

Maybe try editing /etc/apache2/envvars:

http://askubuntu.com/a/285459 

[bcostacurta]

Yes it works !

File /etc/apache2/envvars is the correct place to define :

export PKG_RESOURCES_CACHE_ZIP_MANIFESTS=1

followed by the Apache stop / re-start

Thanks again.

Bruno

[Ryan Ollos]

On Wed, Jul 29, 2015 at 1:30 PM, bcostacurta <bcost...@gmail.com> wrote:

Yes it works !

File /etc/apache2/envvars is the correct place to define :

export PKG_RESOURCES_CACHE_ZIP_MANIFESTS=1

followed by the Apache stop / re-start

Thanks again.

Bruno

Thank you for testing that out and reporting back. I'll make sure the documentation is updated to include the detail.

- Ryan

 

[RjOllos]

Documented in  http://trac.edgewall.org/wiki/TracInstall?action=diff&version=416

I'm just curious, did you previously try adding the export statement to a script in profile.d, as documented here?:

http://trac.edgewall.org/wiki/TracInstall#RunningtheStandaloneServer

I think I wrote that documentation, but I don't recall how much testing I did.

[bcostacurta]

Hi Ryan,

I did not test the ~/.profile.d you mentioned and refered in the Trac forums

However I find this confusing : to which user does the ~ refers to ?

Anyway, the /etc/apache2/envvars works fine under my Debian / Apache system for Trac.

Bye

Bruno

[Ryan Ollos]

On Thu, Jul 30, 2015 at 12:13 PM, bcostacurta <bcost...@gmail.com> wrote:

Hi Ryan,

I did not test the ~/.profile.d you mentioned and refered in the Trac forums

However I find this confusing : to which user does the ~ refers to ?

You'd either put the export statement in ~/.profile, or a script with the export statement in /etc/profile.d

In the case of the former, ~ would be the home directory of whatever user you are running tracd under. I guess this wouldn't work in the case of running Apache webserver with user www-data.

I haven't tested whether a script in /etc/profile.d that exported the variable would be visible to user www-data.

[Mike Dewhirst]

On 31/07/2015 8:18 AM, Ryan Ollos wrote:
> On Thu, Jul 30, 2015 at 12:13 PM, bcostacurta <bcost...@gmail.com
> <mailto:bcost...@gmail.com>> wrote:
>
> Hi Ryan,
>
> I did not test the ~/.profile.d you mentioned and refered in the
> Trac forums
> However I find this confusing : to which user does the ~ refers to ?
>
>
> You'd either put the export statement in ~/.profile, or a script with
> the export statement in /etc/profile.d
>
> In the case of the former, ~ would be the home directory of whatever
> user you are running tracd under. I guess this wouldn't work in the case
> of running Apache webserver with user www-data.

It seems (in Ubuntu server) you can export environment variables for
www-data in Apache's own envvars file.

Maybe this is "global" and can't be used for vhosts. But maybe vhost
envvars files can be used? I'm not an Apache person.

Is there any reason to avoid this?

Thanks

Mike

>
> I haven't tested whether a script in /etc/profile.d that exported the
> variable would be visible to user www-data.
>

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[bcostacurta]

Hi 

I tested into file /etc/profile the following :

export PKG_RESOURCES_CACHE_ZIP_MANIFESTS=1

but it does not work.

Please note user www-data has no home directory neither bash. It is only a technical user for Apache2 processes.

Definitely on my server, only the following definition into /etc/apache2/envvars works fine as :

# trac

export PKG_RESOURCES_CACHE_ZIP_MANIFESTS=1

#

Bruno

[RjOllos]

On Saturday, August 1, 2015 at 9:36:54 AM UTC-7, bcostacurta wrote:

Hi 

I tested into file /etc/profile the following :

export PKG_RESOURCES_CACHE_ZIP_MANIFESTS=1

but it does not work.

Please note user www-data has no home directory neither bash. It is only a technical user for Apache2 processes.

Definitely on my server, only the following definition into /etc/apache2/envvars works fine as :

# trac

export PKG_RESOURCES_CACHE_ZIP_MANIFESTS=1

#

Bruno

I modified the documentation to clarify the workarounds when running TracStandalone and  Trac with Apache.

http://trac.edgewall.org/wiki/TracInstall?action=diff&version=425

[Bruno Costacurta]

Thanks for your follow up and your job for Trac.