ok, i spent a little time looking at what the change impacts and it
looks like all the template validations we have currently require
hadoop_version. additionally, the client uses the name and documentation
references it.
due to the large number of changes and the difficulty in providing
backward compatibility, i propose that we leave it as is for the v1 api
& client and we change it for the v2 api & client.
to that end, i've added 'verifying hadoop_version -> version' as a work
item for both the v2-api-impl and v2-client.
https://blueprints.launchpad.net/savanna/+spec/v2-api-impl
and
https://blueprints.launchpad.net/python-savannaclient/+spec/v2-client
best,
matt
On 02/17/2014 04:23 PM, Alexander Ignatov wrote:
Agree to rename this legacy field to ‘version’. Adding to John's words
about HDP, Vanilla plugin is able to run different hadoop versions by
doing some manipulations with DIB scripts :-) So the right name of this
field should be ‘version’ as version of engine of concrete plugin.
Regards,
Alexander Ignatov
On 18 Feb 2014, at 01:01, John Speidel <[email protected]
<mailto:[email protected]>> wrote:
Andrew +1
The HDP plugin also returns the HDP distro version. The version needs
to make sense in the context of the plugin.
Also, many plugins including the HDP plugin will support deployment of
several hadoop versions.
-John
On Mon, Feb 17, 2014 at 2:36 PM, Andrew Lazarev <[email protected]
<mailto:[email protected]>> wrote:
IDH uses version of IDH distro and there is no direct mapping
between distro version and hadoop version. E.g. IDH 2.5.1 works
with apache hadoop 1.0.3.
I suggest to call the field as just 'version' everywhere and
assume this version as plugin specific property.
Andrew.
On Mon, Feb 17, 2014 at 5:06 AM, Matthew Farrellee
<[email protected] <mailto:[email protected]>> wrote:
$ savanna plugins-list
+---------+----------+--------__-------------------+
| name | versions | title |
+---------+----------+--------__-------------------+
| vanilla | 1.2.1 | Vanilla Apache Hadoop |
| hdp | 1.3.2 | Hortonworks Data Platform |
+---------+----------+--------__-------------------+
above is output from the /plugins endpoint -
http://docs.openstack.org/__developer/savanna/userdoc/__rest_api_v1.0.html#plugins
<http://docs.openstack.org/developer/savanna/userdoc/rest_api_v1.0.html#plugins>
the question is, should the version be the version of the
plugin or the version of hadoop the plugin installs?
i ask because it seems like we have version == plugin version
for hdp and version == hadoop version for vanilla.
the documentation is somewhat vague on the subject, mostly
stating "version" without qualification. however, the json
passed to the service references "hadoop_version" and the
arguments in the client are called "hadoop_version"
fyi, this could be complicated by the idh and spark plugins.
best,
matt
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