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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2018/03/02 01:24:00 UTC
[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)
[ https://issues.apache.org/jira/browse/HBASE-10052?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack updated HBASE-10052:
--------------------------
Fix Version/s: (was: 2.0.0)
> 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 P. McCabe
> Priority: Minor
>
> 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}}.
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