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https://issues.apache.org/jira/browse/HBASE-4056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Purtell resolved HBASE-4056.
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Resolution: Incomplete
Incomplete here, superseded by other issues
> Support for using faster storage for write-ahead log
> ----------------------------------------------------
>
> Key: HBASE-4056
> URL: https://issues.apache.org/jira/browse/HBASE-4056
> Project: HBase
> Issue Type: New Feature
> Reporter: Praveen Kumar
> Priority: Minor
> Labels: features
>
> On clusters with heterogeneous storage components like hard drives and flash
> memory, it could be beneficial to use flash memory for write-ahead log. This
> can be accomplished by using client side mount table support (HADOOP-7257)
> that is offered by HDFS federation (HDFS-1052) feature. One can define two
> HDFS namespaces (faster and slower), and configure HBase to use faster
> storage namespace for storing WAL.
> This is an abstract task that captures the idea. More brainstorming and
> subtasks identification to follow.
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