[jira] [Commented] (HBASE-10204) Offheap efforts

["Andrew Purtell (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-10204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13852364#comment-13852364 ] 

Andrew Purtell commented on HBASE-10204:
----------------------------------------

This part sounds like overlap: "or reading from dfsclient into DBBs which are then put into an offheap block cache". And/or getting DBBs wrapped around mlocked regions of HDFS blocks out of the new DataNode caching layer.

> Offheap efforts
> ---------------
>
>                 Key: HBASE-10204
>                 URL: https://issues.apache.org/jira/browse/HBASE-10204
>             Project: HBase
>          Issue Type: Umbrella
>            Reporter: stack
>
> This is an umbrella issue under which we tie all efforts at offheaping whether [~apurtell] and crews' effort at single off-heap allocation arena for blockcache and memstore through @nkeywal reading queries into direct bytebuffers or reading from dfsclient into DBBs which are then put into an offheap block cache.
> This issue should include links to discussion and design.  It also should host targets such as that posited by [~vrodionov] in HBASE-10191 where going end-to-end offheap would imply a new read/write pipeline.



--
This message was sent by Atlassian JIRA
(v6.1.4#6159)