sahara ci test has too small ram size

[Ken Chen]

Now the default RAM size to run ci test is 2GB, which is too small for adding services or packages requiring higher memory size. 4GB will be suggested at this stage.

[Sergey Lukjanov (slukjanov)]

I don't think that we'd like to test additional services in sahara-ci if it's not possible to do with current flavor

[Ken Chen (ken-chen-i)]

Sergey, it seems as long as we want to add the packages supporting other services, the flavor will be too small. I am not sure whether we need to modify the ci test process to let each test has its own defined flavor.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/143650
Committed: https://git.openstack.org/cgit/openstack/sahara/commit/?id=2c7bd5ec9a5f86f158323358e0bf53a046411292
Submitter: Jenkins
Branch: master

commit 2c7bd5ec9a5f86f158323358e0bf53a046411292
Author: Sergey Reshetnyak <email address hidden>
Date: Tue Dec 23 14:16:26 2014 +0300

    Increase RAM for CDH master processes in CDH IT

    Closes-bug: #1405956

    Change-Id: Ib035069a9862cf1e5f293a0e23e6a99d545b48c7