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From "Jayush Luniya (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-10023) Ambari framework to support adding any new hadoop compatible file system at ease
Date Tue, 31 Mar 2015 07:48:53 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-10023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14388195#comment-14388195
] 

Jayush Luniya commented on AMBARI-10023:
----------------------------------------

[~vijikarthi]
Thanks for taking this initiative.

I just wanted to comment on point 2.a in the design document
{noformat}
All file system service implementation should extend from common/HCFS service layer.
a) HDFS service implementation should extend from common services/HCFS service.
(Note, here the common/hdfs service is extending from common/hcfs service. This is a new
capability that is not implemented in current Ambari design.)
{noformat}

The stack inheritence actually does support  a service in common-services to inherit from
another service in common services. So you can have common-services/HDFS/1.0 inherit from
common-services/HCFS/1.0. In common-services/HDFS/1.0/metainfo.xml you need to add 
{noformat}
<extends>common-services/HCFS/1.0</extends>
{noformat}




> Ambari framework to support adding any new hadoop compatible file system at ease
> --------------------------------------------------------------------------------
>
>                 Key: AMBARI-10023
>                 URL: https://issues.apache.org/jira/browse/AMBARI-10023
>             Project: Ambari
>          Issue Type: Epic
>          Components: ambari-server, ambari-web
>            Reporter: Vijay Srinivasaraghavan
>         Attachments: HCFS-Integration-Design Draft 1.pdf, Service Type-Reference Implementation-Patch.txt
>
>
> 1) Align Ambari’s design with Hadoop’s design, supporting pluggable filesystems.
> 2) Eliminate GlusterFS as a special case.



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