hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-10052) use HDFS advisory caching to avoid caching HFiles that are not going to be read again (because they are being compacted)
Date Thu, 05 Dec 2013 06:30:44 GMT

     [ https://issues.apache.org/jira/browse/HBASE-10052?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell updated HBASE-10052:
-----------------------------------

    Fix Version/s:     (was: 0.98.0)
                   0.99.0
                   0.98.1

Hmm, ok, moving out until we have something with a quantified benefit.

> use HDFS advisory caching to avoid caching HFiles that are not going to be read again
(because they are being compacted)
> ------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-10052
>                 URL: https://issues.apache.org/jira/browse/HBASE-10052
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Colin Patrick McCabe
>            Assignee: Andrew Purtell
>            Priority: Minor
>             Fix For: 0.98.1, 0.99.0
>
>
> HBase can benefit from doing dropbehind during compaction since compacted files are not
read again.  HDFS advisory caching, introduced in HDFS-4817, can help here.  The right API
here is {{DataInputStream#setDropBehind}}.



--
This message was sent by Atlassian JIRA
(v6.1#6144)

Mime
View raw message