You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@hbase.apache.org by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org> on 2010/03/22 22:55:27 UTC

[jira] Commented: (HBASE-2362) Improve gets/scans when all columns of a key is requested.

    [ https://issues.apache.org/jira/browse/HBASE-2362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12848379#action_12848379 ] 

Jean-Daniel Cryans commented on HBASE-2362:
-------------------------------------------

+1

> Improve gets/scans when all columns of a key is requested.
> ----------------------------------------------------------
>
>                 Key: HBASE-2362
>                 URL: https://issues.apache.org/jira/browse/HBASE-2362
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Karthik Ranganathan
>
> Right now, we get one KeyValue at a time and run it through the matcher even if the query is to fetch the entire row (or even an entire column family for a key). This causes the blocks to be fetched serially from HDFS. We can optimize this by looking at the block map, and fetching all the blocks spanned by the key in one request to HDFS.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.