[poky] SSTATE_MIRRORS not working?

[Kristian Amlie]

On 13/01/17 11:41, Richard Purdie wrote:
> On Fri, 2017-01-13 at 09:50 +0100, Kristian Amlie wrote:
>> For some time now, I've had the problem that SSTATE_MIRRORS does not
>> work properly for me. I can see that it downloads lots of packages
>> from the cache, but once the setscene stage is over, and runqueue
>> begins, it starts the whole build from scratch regardless.
>>
>> This used to work for me before, it would only run a small subset of
>> the tasks locally, taking full advantage of the cache, so I'm fairly
>> certain my setup is correct. For me it broke maybe six weeks ago or
>> so (master branch).
>>
>> I realize this question may be more appropriate for bitbake-devel,
>> and I can provide more details, but I thought I'd just hear if
>> anybody else has experienced the same, before I go digging.
> 
> Which SSTATE_MIRRORS are you using?

It's a private build machine in the cloud. It's simply the sstate-cache
folder exposed with Apache, and me pointing my mirror at it with:

  SSTATE_MIRRORS ?= "file://.* http://1.2.3.4/PATH"

> The build logs should show what is being rebuilt. The autobuilder does
> reuse sstate during its builds and we'd likely have noticed long build
> times if it was completely broken so its likely some mismatch between
> your setup and what is in the particular mirror you're using.

I'll try to do a more thorough check, and compare downloaded packages
with built packages.

-- 
Kristian