adjust nfs backup unit test memory usage

[Tom Barron]

https://review.openstack.org/#/c/149726/, which added NFS backup support, ported a number of unit tests from the
Swift backup service. Likely because the NFS backup service uses a different "chunk" size by default, the NFS backup unit
tests consume an inappropriate amount of memory and cause test failures due to "memory error" when tox is run in a 1GB
VM.

The tests should be modified to consume less memory and run successfully in a 1GB VM.

[Tom Barron (tpb)]

Thank you!

On 3/16/15 12:43 PM, Andrew Kerr wrote:
> ** Description changed:
>
> - https://review.openstack.netapp.com/#/c/203/, which added NFS backup support, ported a number of unit tests from the
> + https://review.openstack.org/#/c/149726/, which added NFS backup support, ported a number of unit tests from the
> Swift backup service. Likely because the NFS backup service uses a different "chunk" size by default, the NFS backup unit
> tests consume an inappropriate amount of memory and cause test failures due to "memory error" when tox is run in a 1GB
> VM.
>
> The tests should be modified to consume less memory and run successfully
> in a 1GB VM.
>

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/165394

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/165394
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=7cdcb7ac63ede192af4639675bf21e80c2a3a752
Submitter: Jenkins
Branch: master

commit 7cdcb7ac63ede192af4639675bf21e80c2a3a752
Author: Tom Barron <email address hidden>
Date: Mon Mar 16 03:43:18 2015 -0400

    Reduce configured file size for nfs backup unit tests

    Unit tests that were ported from the Swift backup
    service for NFS backup trigger memory errors when
    run in tox on a 1GB VM. This commit configures
    NFS backup 'backup_file_size' to match the default
    Swift 'chunk_size' so that the NFS backup unit test
    memory consumption is dialed down to match the Swift
    unit tests.

    Closes-Bug: 1432687

    Change-Id: I4b71d47190179b97baefe9bc390276f720670919