From 8fdd19e78a2053285569cda05cdc4875b716190c Mon Sep 17 00:00:00 2001
From: gord chung <gord@live.ca>
Date: Tue, 13 Feb 2018 21:19:59 +0000
Subject: [PATCH] add disk.device.*.latency meters

it's missing from docs and gnocchi

see: I0235087af459278b9ad0a66f95c4e4c4ac72e112

Change-Id: If2bad05c52c636c728c95ab6e9520cb6467a99e1
---
 ceilometer/publisher/data/gnocchi_resources.yaml       |  2 ++
 doc/source/admin/telemetry-measurements.rst            | 10 ++++++++++
 .../add-disk-latency-metrics-9e5c05108a78c3d9.yaml     |  5 +++++
 3 files changed, 17 insertions(+)
 create mode 100644 releasenotes/notes/add-disk-latency-metrics-9e5c05108a78c3d9.yaml

diff --git a/ceilometer/publisher/data/gnocchi_resources.yaml b/ceilometer/publisher/data/gnocchi_resources.yaml
index 364292d825..6056aca888 100644
--- a/ceilometer/publisher/data/gnocchi_resources.yaml
+++ b/ceilometer/publisher/data/gnocchi_resources.yaml
@@ -109,6 +109,8 @@ resources:
       - 'disk.device.write.bytes'
       - 'disk.device.write.bytes.rate'
       - 'disk.device.latency'
+      - 'disk.device.read.latency'
+      - 'disk.device.write.latency'
       - 'disk.device.iops'
       - 'disk.device.capacity'
       - 'disk.device.allocation'
diff --git a/doc/source/admin/telemetry-measurements.rst b/doc/source/admin/telemetry-measurements.rst
index 53d8478100..762af89134 100644
--- a/doc/source/admin/telemetry-measurements.rst
+++ b/doc/source/admin/telemetry-measurements.rst
@@ -331,6 +331,16 @@ The following meters are collected for OpenStack Compute.
 |           | ative | MB   | instance | Pollster | Libvirt | Memory swap out  |
 | swap.out  |       |      | ID       |          |         |                  |
 +-----------+-------+------+----------+----------+---------+------------------+
+| **Meters added in the Queens release**                                      |
++-----------+-------+------+----------+----------+---------+------------------+
+| disk.devi\| Cumul\|      |          |          |         | Total time read  |
+| ce.read.l\| ative | ns   | Disk ID  | Pollster | Libvirt | operations have  |
+| atency    |       |      |          |          |         | taken            |
++-----------+-------+------+----------+----------+---------+------------------+
+| disk.devi\| Cumul\|      |          |          |         | Total time write |
+| ce.write.\| ative | ns   | Disk ID  | Pollster | Libvirt | operations have  |
+| latency   |       |      |          |          |         | taken            |
++-----------+-------+------+----------+----------+---------+------------------+
 
 .. note::
 
diff --git a/releasenotes/notes/add-disk-latency-metrics-9e5c05108a78c3d9.yaml b/releasenotes/notes/add-disk-latency-metrics-9e5c05108a78c3d9.yaml
new file mode 100644
index 0000000000..9bc76c650f
--- /dev/null
+++ b/releasenotes/notes/add-disk-latency-metrics-9e5c05108a78c3d9.yaml
@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Add `disk.device.read.latency` and `disk.device.write.latency` meters to
+    capture total time used by read or write operations.