glance-cache-manage image_cache_max_size doc is ambiguous

[Curtis Penner]

The description in the documentation is ambiguous. There is not the certainty that the image_max_size parameter is about the sum of all the images or just one image.

http://docs.openstack.org/developer/glance/cache.html

In the file: /etc/glance/glance-cache.conf, it just says:
# Max cache size in bytes
which implies the whole size of the cache (sum of all image sizes).

But the doc somewhat implies image (?).

[Louis Taylor (kragniz)]

I'm guessing you mean the image_cache_max_size option?

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/152523
Committed: https://git.openstack.org/cgit/openstack/glance/commit/?id=4f64c005476a7aa3fb59e983c86b5d155abbd44f
Submitter: Jenkins
Branch: master

commit 4f64c005476a7aa3fb59e983c86b5d155abbd44f
Author: Yusuke Ide <email address hidden>
Date: Tue Feb 3 23:07:25 2015 +0900

    Add detail description of image_cache_max_size

    The description of 'image_cache_max_size' was ambiguous. There was not
    the certainty that the 'image_cache_max_size' parameter was about the
    aggregate size of the cache or a per image limit.
    The 'image_cache_max_size' is an upper limit beyond which pruner,
    if running, starts cleaning the images cache.
    Hence added detail description of 'image_cache_max_size' in document
    and configuration file.

    Bug: #1411813
    Change-Id: Ide8e087db544aeea1990bac92c97cb9ca9f0b522