[openstack-dev] [sahara] Sahara + Cinder use cases?

Daniele Venzano daniele.venzano at eurecom.fr
Wed Apr 8 08:51:42 UTC 2015


Hello,

Did you have any success in finding Sahara and Cinder use cases?

Using Cinder one loses the data locality property around which hadoop and hdfs are built, so I am curious of what benefits there are in such a configuration.

Thanks,
Daniele

-----Original Message-----
From: Jacob Liberman [mailto:jliberma at redhat.com] 
Sent: Tuesday 24 March 2015 19:34
To: openstack-dev at lists.openstack.org
Subject: [openstack-dev] [sahara] Sahara + Cinder use cases?

Hi,

I am working on a Sahara doc bug:
         https://bugs.launchpad.net/sahara/+bug/1371360
         [DOC] Features overview suggests Cinders to increase reliability

I am doing some research for this update.  What are the use cases for Sahara + Cinder?

     1. Cinder-backed Sahara for persistent data
     2. Booting Sahara instances from Cinder volumes

Can option #1 be used in conjunction with existing plugin images?

Are there any docs on using Cinder volumes in place of ephemeral?

(similar to the docs describing how to use Swift-backed EDP)

The Cinder integration test mounts a few volumes to instances but does not use them.

Thanks,

Jacob

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