[yocto] Multiple conncetion to svn (svn+ssh)

[Paul Eggleton]

On Monday 06 July 2015 12:57:39 Bryan Evenson wrote:
> Marcin,
> 
> > From: yocto-bounces at yoctoproject.org
> > [mailto:yocto-bounces at yoctoproject.org] On Behalf Of Marcin Krzeminski
> > Sent: Friday, July 03, 2015 7:55 AM
> > To: yocto at yoctoproject.org
> > Subject: [yocto] Multiple conncetion to svn (svn+ssh)
> > 
> > Hello again,
> > 
> > I have 12 recipes that download code from same svn repository (using
> > svn+ssh)protocol. Recipes are grouped in packagegroup.
> > When I want to bitbake packagegroup fetcher fail, but when I run recipe
> > alone all is ok. I think it is because I want to open 8 connection to one
> > svn repository.How can I fix this, for example by allowing only eg. 2
> > recipes from packagegroup to be executed in paralell.
> There is no fetcher-specific variable that I know of, but I think you can
> set PARALLEL_MAKE="2" in your recipes to reduce the number of fetches on
> your repository at a time.  The downside is your build will go slower when
> it is building your recipes as it won't be doing as many things in
> parallel.

That's not going to help. The parallelism we are talking about here is across 
recipes - PARALLEL_MAKE is just passed through to make within one task in one 
recipe, and make isn't even involved at the fetch stage.

Something that might work would be to set a lockfile on the do_fetch task such 
that only one of the recipes could fetch at once. That could not allow two 
executing at once, but at least it would solve the problem. e.g. you could add 
this to all of the recipes:

do_fetch[lockfiles] += "${TMPDIR}/mysvnlock.lock"

(The file name isn't critical, it just needs to be the same for all of the 
recipes you wish to participate in the exclusive fetching.)

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre