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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12848) Utilize Flash storage for WAL
Date Tue, 13 Jan 2015 19:22:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14275736#comment-14275736
] 

Andrew Purtell commented on HBASE-12848:
----------------------------------------

Maybe we can combine this with HBASE-6572? If that one is just renamed to "Tiered storage"
then this could be a subtask of that, and figuring out what would be useful to do with the
SSD storage policy for HFiles would be the next.

> Utilize Flash storage for WAL
> -----------------------------
>
>                 Key: HBASE-12848
>                 URL: https://issues.apache.org/jira/browse/HBASE-12848
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>         Attachments: 12848-v1.patch
>
>
> One way to improve data ingestion rate is to make use of Flash storage.
> HDFS is doing the heavy lifting - see HDFS-7228.
> We assume an environment where:
> 1. Some servers have a mix of flash, e.g. 2 flash drives and 4 traditional drives.
> 2. Some servers have all traditional storage.
> 3. RegionServers are deployed on both profiles within one HBase cluster.
> This JIRA allows WAL to be managed on flash in a mixed-profile environment.



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