VNX Cinder Driver failed to create snapshot or extend volume due to 0x712d8e0e error

[Jeegn Chen]

VNX Cinder Driver failed to create snapshot or extend volume due to 0x712d8e0e error

EMCVnxCLICmdError: Bad or unexpected response from the storage volume backend API: EMCVnxCLICmdError : ('snap', '-create', '-res', 7, '-name', u'snapshot-f42051da-cf7e-4f99-9304-e218503674c3', '-allowReadWrite', 'yes', '-allowAutoDelete', 'no') (Return Code: 14) (Output: [u"The operation cannot be performed because the LUN is 'Preparing'. Wait for the LUN's Current Operation to complete 'Preparing' and retry the operation. (0x712d8e0e)\\n\\n"])

EMCVnxCLICmdError : ('lun', '-expand', '-name', u'volume-265a65d5-3466-4ff6-a94f-3a539295b7c5', '-capacity', 200, '-sq', 'gb', '-o', '-ignoreThresholds') (Return Code: 14) (Output: [u"SP A: The operation cannot be performed because the LUN is 'Preparing'. Wait for the LUN's Current Operation to complete 'Preparing' and retry the operation. (0x712d8e0e)\\n"])

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/181789

[Peter Wang (peter.wang)]

Update tags for tracking

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/181789
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=a73646d777a77c4820792b7d59ac5330643f9ad0
Submitter: Jenkins
Branch: master

commit a73646d777a77c4820792b7d59ac5330643f9ad0
Author: Jeegn Chen <email address hidden>
Date: Fri May 8 15:41:23 2015 +0800

    Address 0x712d8e0e error in VNX Cinder Driver

    In original implementation, 0x712d8e0e error is not considered.
    Thus, some snapshot creation and volume extending operations may fail
    when the system is in a transition state.

    This patch is to add some waiting and retry logic when 0x712d8e0e error
    comes out so that the system is more error-tolerant.

    Change-Id: I615e49693ada7cf25fd2d2fa224f76c6f20cf630
    Closes-Bug: #1443338