hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Apekshit Sharma (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-11927) Use Native Hadoop Library for HFile checksum
Date Mon, 11 May 2015 23:36:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-11927?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Apekshit Sharma updated HBASE-11927:
------------------------------------
    Summary: Use Native Hadoop Library for HFile checksum  (was: If java7, use zip crc)

> Use Native Hadoop Library for HFile checksum
> --------------------------------------------
>
>                 Key: HBASE-11927
>                 URL: https://issues.apache.org/jira/browse/HBASE-11927
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: stack
>         Attachments: c2021.crc2.svg, c2021.write.2.svg, c2021.zip.svg, crc32ct.svg
>
>
> Up in hadoop they have this change. Let me publish some graphs to show that it makes
a difference (CRC is a massive amount of our CPU usage in my profiling of an upload because
of compacting, flushing, etc.).  We should also make use of native CRCings -- especially the
2.6 HDFS-6865 and ilk -- in hbase but that is another issue for now.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message