[openstack-dev] [Heat] Locking and ZooKeeper - a space oddysey

Julien Danjou julien at danjou.info
Thu Oct 31 09:20:43 UTC 2013


On Wed, Oct 30 2013, Clint Byrum wrote:

> In the patch, there are two distributed lock drivers. One uses SQL,
> and suffers from all the problems you might imagine a SQL based locking
> system would. It is extremely hard to detect dead lock holders, so we
> end up with really long timeouts. The other is ZooKeeper.

I didn't check extensively the patch and what it tries to address, so
pardon me if I'm wrong, but I think there might be some overlap with
what we need in Ceilometer. We scheduled a session in Oslo to talk about
this:

  http://icehousedesignsummit.sched.org/event/ac126a677c0c8a7960b9ff75ccc8d4d2#.UnIeVHUsJRQ   

We want to solve this in a agnostic manner. There also might be some
overlap or complementary with TaskFlow, I hope we'll discuss this during
this session.

-- 
Julien Danjou
/* Free Software hacker * independent consultant
   http://julien.danjou.info */
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