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https://issues.apache.org/jira/browse/HBASE-12848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14276141#comment-14276141
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Sean Busbey commented on HBASE-12848:
-------------------------------------
DistributedFileSystem is imported in FSHLog and the reflection code is in
FSUtils, so I don't think it's needed in FSHLog.
I think there will be a substantial amount of time where the storage policy for
WALs will be different from the one for HFiles, so it's worth breaking things
out. If you want to keep the Configuration lookup inside of the FSUtils method,
we could take a parameter name and a default to use.
> 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
> Fix For: 2.0.0, 1.1.0
>
> Attachments: 12848-v1.patch, 12848-v2.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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