add release notes for mitaka-2

Change-Id: I2cbf0adc7e93cb668dd1a4922605000029704f02

releasenotes/notes/aggregator-transformer-timeout-e0f42b6c96aa7ada.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - >
+    [`bug 1531626 <https://bugs.launchpad.net/ceilometer/+bug/1531626>`_]
+    Ensure aggregator transformer timeout is honoured if size is not provided.

releasenotes/notes/fix-network-lb-bytes-sample-5dec2c6f3a8ae174.yaml

@@ -0,0 +1,6 @@
+---
+fixes:
+  - >
+    [`bug 1530793 <https://bugs.launchpad.net/ceilometer/+bug/1530793>`_]
+    network.services.lb.incoming.bytes meter was previous set to incorrect
+    type. It should be a gauge meter.

releasenotes/notes/gnocchi-cache-b9ad4d85a1da8d3f.yaml

@@ -0,0 +1,6 @@
+---
+fixes:
+  - >
+    [`bug 255569 <https://bugs.launchpad.net/ceilometer/+bug/255569>`_]
+    Fix caching support in Gnocchi dispatcher. Added better locking support
+    to enable smoother cache access.

releasenotes/notes/gnocchi-client-42cd992075ee53ab.yaml

@@ -0,0 +1,7 @@
+---
+features:
+  - >
+    Gnocchi dispatcher now uses client rather than direct http requests
+upgrade:
+  - >
+    gnocchiclient library is now a requirement if using ceilometer+gnocchi.

releasenotes/notes/gnocchi-orchestration-3497c689268df0d1.yaml

@@ -0,0 +1,7 @@
+---
+upgrade:
+  - >
+    gnocchi_resources.yaml in Ceilometer should be updated.
+fixes:
+  - >
+    Fix samples from Heat to map to correct Gnocchi resource type

releasenotes/notes/gnocchi-udp-collector-00415e6674b5cc0f.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - >
+    [`bug 1523124 <https://bugs.launchpad.net/ceilometer/+bug/1523124>`_]
+    Fix gnocchi dispatcher to support UDP collector

releasenotes/notes/index-events-mongodb-63cb04200b03a093.yaml

@@ -0,0 +1,8 @@
+---
+upgrade:
+  - >
+    Run db-sync to add new indices.
+fixes:
+  - >
+    [`bug 1526793 <https://bugs.launchpad.net/ceilometer/+bug/1526793>`_]
+    Additional indices were added to better support querying of event data.

releasenotes/notes/keystone-v3-fab1e257c5672965.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - >
+    Add support for Keystone v3 authentication

releasenotes/notes/remove-cadf-http-f8449ced3d2a29d4.yaml

@@ -0,0 +1,9 @@
+---
+features:
+  - >
+    Support for CADF-only payload in HTTP dispatcher is dropped as
+    audit middleware in pyCADF was dropped in Kilo cycle.
+upgrade:
+  - >
+    audit middleware in keystonemiddleware library should be used for
+    similar support.

releasenotes/notes/remove-rpc-collector-d0d0a354140fd107.yaml

@@ -0,0 +1,9 @@
+---
+features:
+  - >
+    RPC collector support is dropped. The queue-based notifier publisher and
+    collector was added as the recommended alternative as of Icehouse cycle.
+upgrade:
+  - >
+    Pipeline.yaml files for agents should be updated to notifier:// or udp://
+    publishers. The rpc:// publisher is no longer supported.