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Posted to issues@hbase.apache.org by "Wei-Chiu Chuang (Jira)" <ji...@apache.org> on 2021/06/29 02:21:00 UTC
[jira] [Updated] (HBASE-21946) Use ByteBuffer pread instead of
byte[] pread in HFileBlock when applicable
[ https://issues.apache.org/jira/browse/HBASE-21946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wei-Chiu Chuang updated HBASE-21946:
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Summary: Use ByteBuffer pread instead of byte[] pread in HFileBlock when applicable (was: Replace the byte[] pread by ByteBuffer pread in HFileBlock reading once HDFS-3246 prepared)
> Use ByteBuffer pread instead of byte[] pread in HFileBlock when applicable
> --------------------------------------------------------------------------
>
> Key: HBASE-21946
> URL: https://issues.apache.org/jira/browse/HBASE-21946
> Project: HBase
> Issue Type: Improvement
> Components: Offheaping
> Reporter: Zheng Hu
> Assignee: Wei-Chiu Chuang
> Priority: Critical
> Fix For: 2.5.0, 3.0.0-alpha-2
>
> Attachments: HBASE-21946.HBASE-21879.v01.patch, HBASE-21946.HBASE-21879.v02.patch, HBASE-21946.HBASE-21879.v03.patch, HBASE-21946.HBASE-21879.v04.patch
>
>
> [~stakiar] is working on HDFS-3246, so now we have to keep the byte[] pread in HFileBlock reading. Once it get resolved, we can upgrade the hadoop version and do the replacement.
> I think it will be a great p999 latency improvement in 100% Get case, anyway file a issue address this firstly.
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