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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8520) Patch for PPC64 block size
Date Thu, 15 Jun 2017 20:47:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16051034#comment-16051034
] 

Andrew Wang commented on HDFS-8520:
-----------------------------------

I think my earlier comments on this topic are pretty clear. We still don't have a PPC64 build
host in our pool or official PPC64 support AFAIK.

> Patch for PPC64 block size
> --------------------------
>
>                 Key: HDFS-8520
>                 URL: https://issues.apache.org/jira/browse/HDFS-8520
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.7.1
>         Environment: RHEL 7.1 /PPC64
>            Reporter: Tony Reix
>            Assignee: Tony Reix
>              Labels: ppc64
>         Attachments: HDFS-8520-2.patch, HDFS-8520.patch
>
>
> The attached patch enables Hadoop to work on PPC64.
> That deals with SystemPageSize and BloclSize , which are not 4096 on PPC64.
> There are changes in 3 files:
> - hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/nativeio/NativeIO.java
> - hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestFsDatasetCache.java
> - hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestCacheDirectives.java
> where 4096 is replaced by getOperatingSystemPageSize() or by using PAGE_SIZE
> The patch has been built on branch-2.7 .



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