356417ffa1
Change-Id: Ie1b88fc2a5f2548a1d47ff1cfc07e2c1e57af637
57 lines
2.0 KiB
ReStructuredText
57 lines
2.0 KiB
ReStructuredText
Vanilla Plugin
|
|
==============
|
|
|
|
The vanilla plugin is a reference implementation which allows users to operate
|
|
a cluster with Apache Hadoop.
|
|
|
|
Since the Newton release Spark is integrated into the Vanilla plugin so you
|
|
can launch Spark jobs on a Vanilla cluster.
|
|
|
|
For cluster provisioning prepared images should be used. They already have
|
|
Apache Hadoop 2.7.1 installed.
|
|
|
|
You may build images by yourself using :doc:`vanilla_imagebuilder` or you could
|
|
download prepared images from http://sahara-files.mirantis.com/images/upstream
|
|
|
|
Vanilla plugin requires an image to be tagged in Sahara Image Registry with
|
|
two tags: 'vanilla' and '<hadoop version>' (e.g. '2.7.1').
|
|
|
|
The default username specified for these images is different
|
|
for each distribution:
|
|
|
|
+--------------+------------+
|
|
| OS | username |
|
|
+==============+============+
|
|
| Ubuntu 14 | ubuntu |
|
|
+--------------+------------+
|
|
| Fedora 20 | fedora |
|
|
+--------------+------------+
|
|
| CentOS 6 | cloud-user |
|
|
+--------------+------------+
|
|
| CentOS 7 | centos |
|
|
+--------------+------------+
|
|
|
|
Cluster Validation
|
|
------------------
|
|
|
|
When user creates or scales a Hadoop cluster using a Vanilla plugin,
|
|
the cluster topology requested by user is verified for consistency.
|
|
|
|
Currently there are the following limitations in cluster topology for Vanilla
|
|
plugin:
|
|
|
|
For Vanilla Hadoop version 2.x.x:
|
|
|
|
+ Cluster must contain exactly one namenode
|
|
+ Cluster can contain at most one resourcemanager
|
|
+ Cluster can contain at most one secondary namenode
|
|
+ Cluster can contain at most one historyserver
|
|
+ Cluster can contain at most one oozie and this process is also required
|
|
for EDP
|
|
+ Cluster can't contain oozie without resourcemanager and without
|
|
historyserver
|
|
+ Cluster can't have nodemanager nodes if it doesn't have resourcemanager
|
|
+ Cluster can have at most one hiveserver node.
|
|
+ Cluster can have at most one spark history server and this process is also
|
|
required for Spark EDP (Spark is available since the Newton release).
|