Ceilometer arithmetic transformer bug: RuntimeError: dictionary changed size during iteration

[xiexianbin]

we want to meter memory_util for instance, ref:

Multi meter arithmetic transformer: https://review.openstack.org/#/c/106302/
https://specs.openstack.org/openstack/ceilometer-specs/specs/juno/arithmetic-transformer.html, and

and we get an "RuntimeError: dictionary changed size during iteration" for the RuntimeError: dictionary changed size during iteration.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/478352

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/478352
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=91d11e7c7915fe8806af3e19064af0cd71b8fe76
Submitter: Jenkins
Branch: master

commit 91d11e7c7915fe8806af3e19064af0cd71b8fe76
Author: xianbin <email address hidden>
Date: Wed Jun 28 11:13:02 2017 +0800

    Fixed ceilometer arithmetic transformer bug

    For the arithmetic transformer, when some thread use method _update_cache()
    to update self.cache, and the same time the flush() method may be invoke
    self.cache.pop(res_id) and raise "RuntimeError: dictionary changed size
    during iteration"

    Change-Id: I3ea89c7d3bfbdb661770b5d478188f8723c17716
    Closes-bug: #1700875

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/ocata
Review: https://review.openstack.org/489075

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/newton
Review: https://review.openstack.org/489076

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/489076
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=00d2f6faf28645258f89b6858e243d6432a23887
Submitter: Jenkins
Branch: stable/newton

commit 00d2f6faf28645258f89b6858e243d6432a23887
Author: xianbin <email address hidden>
Date: Wed Jun 28 11:13:02 2017 +0800

    Fixed ceilometer arithmetic transformer bug

    For the arithmetic transformer, when some thread use method _update_cache()
    to update self.cache, and the same time the flush() method may be invoke
    self.cache.pop(res_id) and raise "RuntimeError: dictionary changed size
    during iteration"

    Change-Id: I3ea89c7d3bfbdb661770b5d478188f8723c17716
    Closes-bug: #1700875
    (cherry picked from commit 91d11e7c7915fe8806af3e19064af0cd71b8fe76)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/489075
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=40b36e0e2e075ff796603fd1f89a36524e8f616f
Submitter: Jenkins
Branch: stable/ocata

commit 40b36e0e2e075ff796603fd1f89a36524e8f616f
Author: xianbin <email address hidden>
Date: Wed Jun 28 11:13:02 2017 +0800

    Fixed ceilometer arithmetic transformer bug

    For the arithmetic transformer, when some thread use method _update_cache()
    to update self.cache, and the same time the flush() method may be invoke
    self.cache.pop(res_id) and raise "RuntimeError: dictionary changed size
    during iteration"

    Change-Id: I3ea89c7d3bfbdb661770b5d478188f8723c17716
    Closes-bug: #1700875
    (cherry picked from commit 91d11e7c7915fe8806af3e19064af0cd71b8fe76)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/ceilometer 9.0.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/ceilometer 7.1.1 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/ceilometer 8.1.1 release.