[
https://issues.apache.org/jira/browse/HDFS-2832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13707430#comment-13707430
]
Suresh Srinivas commented on HDFS-2832:
---------------------------------------
bq. I wonder how these tiers interact with alternative storage services? For
instance, I run my cluster in EC2 and want a replica stored on S3. Where does
this use case fit in?
Currently we are considering the following: local Disk, remote {locak
rack|remote rack} disk, local SSD, remote {local rack|remote rack} SSD, local
RAM, remote {local rack|remote rack} RAM, RAID, tape, remote storage (such as
S3, SAN) etc. We are also considering temporary/permanent replicas etc.
Will post some details next week. We can discuss if it includes all the storage
types we should be considering.
> Enable support for heterogeneous storages in HDFS
> -------------------------------------------------
>
> Key: HDFS-2832
> URL: https://issues.apache.org/jira/browse/HDFS-2832
> Project: Hadoop HDFS
> Issue Type: New Feature
> Affects Versions: 0.24.0
> Reporter: Suresh Srinivas
> Assignee: Suresh Srinivas
>
> HDFS currently supports configuration where storages are a list of
> directories. Typically each of these directories correspond to a volume with
> its own file system. All these directories are homogeneous and therefore
> identified as a single storage at the namenode. I propose, change to the
> current model where Datanode * is a * storage, to Datanode * is a collection
> * of strorages.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
