Il 4/22/13 3:32 PM, Joseph VLcek ha scritto:
On Apr 18, 2013, at 7:15 AM, Michal Fojtik wrote:
Hi,
I recently discovered an interesting bug, that occurs when you do a lot of
parallel requests to Deltacloud API.
Let say you start Deltacloud API with the 'mock' driver as default driver. Then
you do 3 parallel requests to retrieve RHEV-M images, realms and
hardware_profiles. In that case I get this error:
<snip>
[snip]
Hey Michal,
As I mentioned in IRC last week the research I did seems to indicate the
solution you present here
is the right way to go.
This describes the problem you found:
http://betterlogic.com/roger/2008/10/rubys-require-is-not-thread-safe/
This describes the Ruby threading and seems to support your proposed solution
of using Thread.exclusive.
http://cs.calvin.edu/curriculum/cs/214/adams/labs/11/ruby/
So it seems your solution is the correct way to go.
thanks Joe for give us those links.
At the moment I am trying to test when is happening giving more load to
the various instances.
In this way we will be able to actually pin point what/when/why is
happening in a clear way.
-FV
Joe
