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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Folks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">A follow-up to Steve's earlier email.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Elasticsearch recommends that the version's major numbers match between Elasticsearch and the Elasticsearch python client [1]. To accomodate this, we have submitted a requirement
patch to update the Elasticsearch client to 2.3.X.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">If this is a concern, please comment on the patch:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"> https://review.openstack.org/#/c/338425<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">[1] https://elasticsearch-py.readthedocs.io/en/master<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">> I'm looking into supporting and testing Elasticsearch 2.x in Searchlight's test jobs. Currently I don't know of any other projects that run tests against Elasticsearch
in the gate (since we had to add it to Jenkins [1]). Several projects install the python elasticsearch client in requirements.txt, and it is currently capped to <2.0 in global-requirements [2], and others consume it directly through HTTP requests. Searchlight
needs to move to support Elasticsearch 2.x in Newton but we are aware that doing so will affect other projects.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">> Elasticsearch 2.x is backwards incompatible [3] with 1.x in some ways. The python client library is similarly backwards-incompatible; it is strongly recommended the client
major version matches the server major version. In testing Searchlight we found only a couple of fairly minor changes were needed (and the 1.x client library seems to continue to work against a 2.x server) , but YMMV. Devstack's default ES version is 1.4.2
[4] (which should be changed to 1.7 in any case) and we obviously cannot change that until all projects support 2.x.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">> A wholesale change to move to Elasticsearch 2.x would require changing global-requirements, but this may obviously break projects not ready for the change. My questions
for the projects affected are:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">> * Have you tested with ES 2.x at all?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">> * Do you have plans to move to ES 2.x?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">> Our likely fallback is testing with the 1.x client until we can move devstack and global-requirements to 2.x; if we discover issues in the meantime we will include a deployer
note that the python library needs to be updated if Elasticsearch 2.x is in use.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">> Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">> Steve<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">--<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Rick Aulino<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">HPCS R&D rick.aulino@hpe.com<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Hewlett Packard Enterprise 970-898-0575<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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