[Ceilometer] ES driver incompatible with ES version >=2

[Nadya Privalova]

Detailed bug description:

Elasticsearch driver will be our primary backend for events in MOS 9.*.
Currently we have issues with elasticsearch storage driver because ElasticSearch >= 2.0 has a different mapping scheme for service variable _timestamp. Also, version changing affects string queries by nested fields.

Steps to reproduce:
use ES as a backend foe events with ES version >=2

Expected results:
ceilometer event-list return the list of events

Actual results:
root@node-13:~# ceilometer event-list
TransportError(400, u'search_phase_execution_exception', u'[nested] nested object under path [traits] is not of nested type') (HTTP 500) (Request-ID: req-96e870f8-3544-4be1-a408-58a02b5d3e4e)

Impact:
Ceilometer Event API is not supported with ES driver

[Nadya Privalova (nprivalova)]

Fix is on review https://review.fuel-infra.org/#/c/26308/

[Timur Nurlygayanov (tnurlygayanov)]

The status changed to Won't Fix because in the default deployments with Ceilometer we don't use Elastic Search. The proposed fix partially fixed the initial issue, but it is not a final fix.

We don't want to fix it in MOS 9.1 because for Elastic Search and StackLight we have a workaround inside the plugin for this issue.

[Fuel Devops McRobotson (fuel-devops-robot)]

Fix proposed to branch: mcp/newton
Change author: Ilya Tyaptin <email address hidden>
Review: https://review.fuel-infra.org/33186

[Fuel Devops McRobotson (fuel-devops-robot)]

Fix proposed to branch: 11.0/ocata
Change author: Ilya Tyaptin <email address hidden>
Review: https://review.fuel-infra.org/33737

[Fuel Devops McRobotson (fuel-devops-robot)]

Fix proposed to branch: mcp/ocata
Change author: Ilya Tyaptin <email address hidden>
Review: https://review.fuel-infra.org/34473

[Fuel Devops McRobotson (fuel-devops-robot)]

Change abandoned by Ilya Tyaptin <email address hidden> on branch: mcp/ocata
Review: https://review.fuel-infra.org/34473

[Fuel Devops McRobotson (fuel-devops-robot)]

Change abandoned by Roman Podoliaka <email address hidden> on branch: 11.0/ocata
Review: https://review.fuel-infra.org/33737
Reason: we don't use 11.0/ocata anymore - mcp/ocata is the correct branch name

[Fuel Devops McRobotson (fuel-devops-robot)]

Change abandoned by Ilya Tyaptin <email address hidden> on branch: mcp/newton
Review: https://review.fuel-infra.org/33186

[Fuel Devops McRobotson (fuel-devops-robot)]

Change restored by Ildar Svetlov <email address hidden> on branch: mcp/newton
Review: https://review.fuel-infra.org/33186

[Fuel Devops McRobotson (fuel-devops-robot)]

Change restored by Ildar Svetlov <email address hidden> on branch: mcp/ocata
Review: https://review.fuel-infra.org/34473

[Fuel Devops McRobotson (fuel-devops-robot)]

Change abandoned by Ildar Svetlov <email address hidden> on branch: mcp/ocata
Review: https://review.fuel-infra.org/34473

[Fuel Devops McRobotson (fuel-devops-robot)]

Reviewed: https://review.fuel-infra.org/33186
Submitter: Pkgs Jenkins <email address hidden>
Branch: mcp/newton

Commit: 511c0ffab8dd887dbb235b386856a20d64b54546
Author: Ilya Tyaptin <email address hidden>
Date: Tue Oct 10 08:16:16 2017

Fix elasticsearch-dsl for ElasticSearch 2 support

Currently we have issues with elasticsearch storage driver because
ElasticSearch >= 2.0 has a different mapping scheme for service
variable _timestamp. Also, version changing affects string queries
by nested fields.

Closes-bug: #1623015
Change-Id: I433e1d026328a677ee1d1df86e033f1a8c10af1c

[Fuel Devops McRobotson (fuel-devops-robot)]

Change restored by Ildar Svetlov <email address hidden> on branch: mcp/ocata
Review: https://review.fuel-infra.org/34473

[Fuel Devops McRobotson (fuel-devops-robot)]

Reviewed: https://review.fuel-infra.org/34473
Submitter: Pkgs Jenkins <email address hidden>
Branch: mcp/ocata

Commit: 3f831fda82ed670da8bf2676b98ad31dd4cfc1c4
Author: Ilya Tyaptin <email address hidden>
Date: Wed Oct 11 12:34:15 2017

Fix elasticsearch-dsl for ElasticSearch 2 support

Currently we have issues with elasticsearch storage driver because
ElasticSearch >= 2.0 has a different mapping scheme for service
variable _timestamp. Also, version changing affects string queries
by nested fields.

Closes-bug: #1623015
Change-Id: I433e1d026328a677ee1d1df86e033f1a8c10af1c