Hi,
I didn't look in detail at the attached logs, but they smell like bugs
to me, or at least worth investigating. Please do file on the JIRA.
Thanks
-Todd
On Tue, Mar 13, 2012 at 2:31 PM, hadoop <had...@wangzw.org> wrote:
> Hi,
>
> I am testing on the hadoop 0.23.1 and find two issues. I think that they are
> bugs and need someone to confirm.
>
> Issue 1:
>
> STEP：
> 1, deploy a single node hdfs 0.23.1 cluster and configure hdfs as:
> A) enable webhdfs
> B) enable append
> C) disable permissions
> 2, start hdfs
> 3, run the test script as attached
> RESULT:
> expected: a file named testFile should be created and populated with 32K *
> 5000 zeros, HDFS should be OK.
> I got: script cannot be finished, file has been created but not be populated
> as expected, actually append operation failed.
>
> Datanode log shows that, blockscaner report a bad replica and nanenode decide
> to delete it. Since it is a single node cluster, append fail. It makes no
> sense that the script fail every time.
> Datanode and Namenode logs are attached.
>
> Issue 2:
>
> STEP:
> 1, create a new EMPTY file
> 2, read it using webhdfs.
>
> RESULT:
> expected: get a empty file
> I got:
> {"RemoteException":{"exception":"IOException","javaClassName":"java.io.IOException","message":"Offset=0
> out of the range [0, 0); OPEN, path=/testFile"}}
>
> First of all, [0, 0) is not a valid range, and I thing read a empty file
> should be OK.
>
> Are these two issues bugs? If they are, I will report them on the jira.
>
>
> Thanks
>
>
> Zhanwei Wang
--
Todd Lipcon
Software Engineer, Cloudera
