[Backport][Ceilometer] MongoDB reconnect issues

[Alexander Nevenchannyy]

Dear, MOS-Maintenace team.

Please include those patches in Ceilometer in next maintenace updates for 6.0/6.1 releases:
https://review.openstack.org/#/c/137133/
https://review.openstack.org/#/c/135186/
https://review.openstack.org/#/c/86609/

[Ilya Tyaptin (ityaptin)]

Dear, MOS-Maintenace team.

https://review.openstack.org/#/c/137133/ have been already backported to MOS 6.0 - https://review.fuel-infra.org/#/c/186/.
Also, https://review.openstack.org/#/c/86609/ doesn't need backporting according to https://review.fuel-infra.org/#/c/181/.

So, you need only to backport https://review.openstack.org/#/c/135186/ that hasn't been backported to 6.0-updates https://review.fuel-infra.org/#/c/2166/

[Alexey Khivin (akhivin)]

As I understand, this https://review.fuel-infra.org/#/c/12879/ is all we need for 6.0-updates?

[Alexey Khivin (akhivin)]

invalid for 6.1 due to comment#1

[Vitaly Sedelnik (vsedelnik)]

https://review.fuel-infra.org/#/c/12879/ is still in merge conflict, moving this bug from 6.0-mu-7 to 6.0-updates, waiting for resolution