[
https://issues.apache.org/jira/browse/HDFS-6584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jing Zhao updated HDFS-6584:
----------------------------
Attachment: h6584_20140908b.patch
> Support Archival Storage
> ------------------------
>
> Key: HDFS-6584
> URL: https://issues.apache.org/jira/browse/HDFS-6584
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: balancer, namenode
> Reporter: Tsz Wo Nicholas Sze
> Assignee: Tsz Wo Nicholas Sze
> Attachments: HDFS-6584.000.patch,
> HDFSArchivalStorageDesign20140623.pdf, HDFSArchivalStorageDesign20140715.pdf,
> archival-storage-testplan.pdf, h6584_20140907.patch, h6584_20140908.patch,
> h6584_20140908b.patch
>
>
> In most of the Hadoop clusters, as more and more data is stored for longer
> time, the demand for storage is outstripping the compute. Hadoop needs a cost
> effective and easy to manage solution to meet this demand for storage.
> Current solution is:
> - Delete the old unused data. This comes at operational cost of identifying
> unnecessary data and deleting them manually.
> - Add more nodes to the clusters. This adds along with storage capacity
> unnecessary compute capacity to the cluster.
> Hadoop needs a solution to decouple growing storage capacity from compute
> capacity. Nodes with higher density and less expensive storage with low
> compute power are becoming available and can be used as cold storage in the
> clusters. Based on policy the data from hot storage can be moved to cold
> storage. Adding more nodes to the cold storage can grow the storage
> independent of the compute capacity in the cluster.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
