we had this in ceilometer events. you can see it here:
https://github.com/openstack/ceilometer/commit/898cd3d036c4358aa16f7b3e2028365dc9829213
note, that patch is removing it because it slowed everything way down
because of locking. if you can avoid it, avoid it.
On 08/12/2015 7:28 AM, Renat Akhmerov wrote:
Hi,
Moshe, thanks a lot for bringing this up. I remember I tried to find a
way to change isolation level per connection but also was unable to do
that.
An advice from oslo team would be very helpful.
Renat Akhmerov
@ Mirantis Inc.
On 08 Dec 2015, at 13:41, ELISHA, Moshe (Moshe)
<moshe.eli...@alcatel-lucent.com
<mailto:moshe.eli...@alcatel-lucent.com>> wrote:
Hi,
We at Mistral want to move from the default transaction isolation
level of REPEATABLE READ to READ COMMITTED as part of a bugfix[1].
I did not find a way to pass the isolation level to sqlachemy using
oslo.db and the current solution is to use monkey-patching[2] that
adds the “isolation_level” property.
Is there currently a better way to set the default isolation level?
If not – I will create a BP for it.
Thanks.
[1]https://review.openstack.org/#/c/253819
[2]https://review.openstack.org/#/c/253819/11/mistral/db/sqlalchemy/base.py
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