Horizon Storage I/O output not aligned with io output from ceph -s in terms of content

[Wendy Mitchell]

Brief Description
-----------------
Horizon Storage I/O output not aligned with io output from ceph -s in terms of content
(and operations/second value does not appear to be updating in Horizon)

Severity
--------
Standard

Steps to Reproduce
------------------
1. Login to Horizon as admin user and navigate to Platform - Storage Overview
2. From the cli, run ceph -s command
Perform operation that cause the following io values to update in ceph -s output in the cli

  io:
    client: KiB/s rd, KiB/s wr, op/s rd, op/s wr

3. Refresh in Horizon to compare and confirm the same info is provided in terms of rd, wr and op/s (rd and wr)

Expected Behaviour
------------------
The intent is to provide all the same information from ceph -s in terms of operations and rw/sec

Actual Behaviour
----------------
1. Horizon reports only the following values (not aligning with ceph -s io output)

Storage I/O
    <value> kiB/s write, <value> operations/second

2. The operations/sec value remains at 0 in Horizon (even though it has a positive value in the cli output from ceph -s)

Reproducibility
---------------
yes

System Configuration
--------------------
Platform - Storage Overview (eg. storage system)

Branch/Pull Time/Commit
-----------------------
BUILD_ID="20190715T233000Z"

Timestamp/Logs
--------------

[Ghada Khalil (gkhalil)]

As per input from Brent Rowsell and Frank Miller, this is not urgent, but should be fixed in the next release. Marking as stx.3.0

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/672260

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/672260
Committed: https://git.openstack.org/cgit/starlingx/gui/commit/?id=cc30e1101db0a7df89759a0c0560833dc1274b77
Submitter: Zuul
Branch: master

commit cc30e1101db0a7df89759a0c0560833dc1274b77
Author: Martin, Chen <email address hidden>
Date: Tue Jul 23 23:32:43 2019 +0800

    Correct storage I/O data stats in starlingx dashboard

    Test case
    $ rados create local -p cinder-volumes
    $ rados put local testfile -p cinder-volumes
    check in dashboard "Storage Overview", section"io"
    there is write IO stats info

    $ rados get local outputfile -p cinder-volumes
    check in dashboard "Storage Overview", section"io"
    there is read IO stats info

    Closes-Bug: 1837226

    Change-Id: Ifd9b84dc897aa3096caaaa0944d54dba83ab5817
    Signed-off-by: Martin, Chen <email address hidden>