ST: crashing due to resource exhaustion

[amit surana]

if max configured BGPaaS is 'n', and admin creates and attaches 'n+1' BGPaaS objects to a VMI each, then schema is crashing while attempting to allocate a port for the n+1 bgp-client router. This exception should be handled gracefully.

 /usr/lib/python2.7/dist-packages/schema_transformer/to_bgp.py in __init__(self=<schema_transformer.to_bgp.SchemaTransformer object>, args=Namespace(admin_password='***', admin_te...0.8:2181', zk_server_port='2181', zk_timeout=400))
  241 # the RMQ constructs created earlier and then give up.
  242 self._vnc_kombu.shutdown()
  243 raise e
  244 # end __init__
  245
e = ResourceExhaustionError('Cannot get zk index from bit 2001',)
<class 'cfgm_common.exceptions.ResourceExhaustionError'>: Cannot get zk index from bit 2001
    __class__ = <class 'cfgm_common.exceptions.ResourceExhaustionError'>
    __delattr__ = <method-wrapper '__delattr__' of ResourceExhaustionError object>
    __dict__ = {}
    __doc__ = None
    __format__ = <built-in method __format__ of ResourceExhaustionError object>
    __getattribute__ = <method-wrapper '__getattribute__' of ResourceExhaustionError object>
    __getitem__ = <method-wrapper '__getitem__' of ResourceExhaustionError object>
    __getslice__ = <method-wrapper '__getslice__' of ResourceExhaustionError object>
    __hash__ = <method-wrapper '__hash__' of ResourceExhaustionError object>
    __init__ = <method-wrapper '__init__' of ResourceExhaustionError object>
    __module__ = 'cfgm_common.exceptions'
    __new__ = <built-in method __new__ of type object>
    __reduce__ = <built-in method __reduce__ of ResourceExhaustionError object>
    __reduce_ex__ = <built-in method __reduce_ex__ of ResourceExhaustionError object>
    __repr__ = <method-wrapper '__repr__' of ResourceExhaustionError object>
    __setattr__ = <method-wrapper '__setattr__' of ResourceExhaustionError object>
    __setstate__ = <built-in method __setstate__ of ResourceExhaustionError object>
    __sizeof__ = <built-in method __sizeof__ of ResourceExhaustionError object>
    __str__ = <method-wrapper '__str__' of ResourceExhaustionError object>
    __subclasshook__ = <built-in method __subclasshook__ of type object>
    __unicode__ = <built-in method __unicode__ of ResourceExhaustionError object>
    __weakref__ = None
    args = ('Cannot get zk index from bit 2001',)
    message = 'Cannot get zk index from bit 2001'

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/28576
Submitter: Sachin Bansal (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/28621
Submitter: Sachin Bansal (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/28576
Committed: http://github.org/Juniper/contrail-controller/commit/630bcd8b55c79a6ae95b4f031c1f58c59c0e56f0
Submitter: Zuul (<email address hidden>)
Branch: master

commit 630bcd8b55c79a6ae95b4f031c1f58c59c0e56f0
Author: Sachin Bansal <email address hidden>
Date: Wed Feb 8 17:27:15 2017 -0800

Catch ResourceExhaustionError and log

Catch ResourceExhaustionError and log the failure instead of
generating a traceback.

Change-Id: I914132f2e5a77b43fc0a212152dd631393f2ba1b
Closes-Bug: 1662674

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/28621
Submitter: Sachin Bansal (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/28643
Submitter: Sachin Bansal (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/28644
Submitter: Sachin Bansal (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/28621
Committed: http://github.org/Juniper/contrail-controller/commit/7988017040c3545d0093bbcd8c3c27ffa3ce83c7
Submitter: Zuul (<email address hidden>)
Branch: R3.2

commit 7988017040c3545d0093bbcd8c3c27ffa3ce83c7
Author: Sachin Bansal <email address hidden>
Date: Wed Feb 8 17:27:15 2017 -0800

Catch ResourceExhaustionError and log

Catch ResourceExhaustionError and log the failure instead of
generating a traceback.

Change-Id: I914132f2e5a77b43fc0a212152dd631393f2ba1b
Closes-Bug: 1662674
(cherry picked from commit 630bcd8b55c79a6ae95b4f031c1f58c59c0e56f0)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/28643
Committed: http://github.org/Juniper/contrail-controller/commit/38ec59836d89ecaaf8905943aae17b9e77a5ae23
Submitter: Zuul (<email address hidden>)
Branch: R3.1

commit 38ec59836d89ecaaf8905943aae17b9e77a5ae23
Author: Sachin Bansal <email address hidden>
Date: Wed Feb 8 17:27:15 2017 -0800

Catch ResourceExhaustionError and log

Catch ResourceExhaustionError and log the failure instead of
generating a traceback.

Change-Id: I914132f2e5a77b43fc0a212152dd631393f2ba1b
Closes-Bug: 1662674
(cherry picked from commit 630bcd8b55c79a6ae95b4f031c1f58c59c0e56f0)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/28644
Committed: http://github.org/Juniper/contrail-controller/commit/a4949b150f460aaed14682a776d29c068d1cf186
Submitter: Zuul (<email address hidden>)
Branch: R3.0

commit a4949b150f460aaed14682a776d29c068d1cf186
Author: Sachin Bansal <email address hidden>
Date: Wed Feb 8 17:27:15 2017 -0800

Catch ResourceExhaustionError and log

Catch ResourceExhaustionError and log the failure instead of
generating a traceback.

Change-Id: I914132f2e5a77b43fc0a212152dd631393f2ba1b
Closes-Bug: 1662674
(cherry picked from commit 630bcd8b55c79a6ae95b4f031c1f58c59c0e56f0)