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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-11462) TestSocketIOTimeout needs change for PowerPC platform
Date Wed, 07 Jan 2015 00:50:35 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-11462?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Nauroth updated HADOOP-11462:
-----------------------------------
    Assignee: Ayappan  (was: Chris Nauroth)

> TestSocketIOTimeout needs change for PowerPC platform
> -----------------------------------------------------
>
>                 Key: HADOOP-11462
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11462
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 2.5.2
>         Environment: PowerPC
>            Reporter: Ayappan
>            Assignee: Ayappan
>         Attachments: HADOOP-9627-v1.patch
>
>
> TestSocketIOWithTimeout uses a block size of 4192 bytes to simulate a partial write.
This seems to be a valid in x86 architecture where the default minimum blocksize is 4096.

> This testcase fails in PowerPC where the default minimum block size is 65536 bytes (64KB).
So for PowerPC, using a blocksize little more than 64K , say 65555(65536 + 19) holds good
for this scenario.
> I attached a patch here where i made it very general by introducing NativeIO.POSIX.getCacheManipulator().getOperatingSystemPageSize()
to get the page size.
> I tested my patch in both ppc64 and x86 linux machines.



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