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From Todd Lipcon <t...@cloudera.com>
Subject Re: CDH3B4 "fixes" permissions
Date Fri, 18 Mar 2011 00:03:27 GMT
Aw, thanks JD :)

Geoff, we'd be happy to help you over on the cdh-user list. Don't
hesitate to email - there's a good reason it's fixing permissions like
this.

Also, putting your tmp dir inside your data dir is not a good idea.
Would definitely discourage that.

-Todd

On Thu, Mar 17, 2011 at 4:56 PM, Jean-Daniel Cryans <jdcryans@apache.org> wrote:
> Yes at the moment it's easier to use the Hadoop version shipped with
> CDH3 in order to have durability (the other option being compiling the
> 0.20-append hadoop branch, which isn't so hard but then again I'm a
> committer so my opinion is biased).
>
> At StumbleUpon we use CDH3b2 that we patched a bit, and it serves us
> very well. I have only good things to say about the people at
> Cloudera.
>
> J-D
>
> On Thu, Mar 17, 2011 at 4:47 PM, Geoff Hendrey <ghendrey@decarta.com> wrote:
>> Yep. I appreciate the info. Thanks. I wish I didn't have to use CDH, but
>> I was basically advised on this list that upgrading to CDH3 was a good
>> option (if not my best bet) to prevent the "data loss" that the HBase
>> admin page warns about.
>>
>> -geoff
>>
>> -----Original Message-----
>> From: jdcryans@gmail.com [mailto:jdcryans@gmail.com] On Behalf Of
>> Jean-Daniel Cryans
>> Sent: Thursday, March 17, 2011 4:14 PM
>> To: user@hbase.apache.org
>> Subject: Re: CDH3B4 "fixes" permissions
>>
>> We tolerate some level of discussion regarding CDH when the issues
>> look more generic to HBase, like "I use CDH3b4 and the master has this
>> issue". The HBase version they ship isn't patched a lot, so an HBase
>> issue in CDH is mostly likely a real issue.
>>
>> In your case the question is at the HDFS level and concerns security
>> which isn't in any apache release yet, so it's "special" to cloudera.
>>
>> Also you have better chances to get answers from cloudera people on
>> their own lists :)
>>
>> Hope that helps,
>>
>> J-D
>>
>> On Thu, Mar 17, 2011 at 4:08 PM, Geoff Hendrey <ghendrey@decarta.com>
>> wrote:
>>> Fair. I've seen discussion of CDH3 on this list which is why I pinged.
>>> Is it bad form to discuss CDH3 here?
>>>
>>> -geoff
>>>
>>> -----Original Message-----
>>> From: jdcryans@gmail.com [mailto:jdcryans@gmail.com] On Behalf Of
>>> Jean-Daniel Cryans
>>> Sent: Thursday, March 17, 2011 4:05 PM
>>> To: user@hbase.apache.org
>>> Subject: Re: CDH3B4 "fixes" permissions
>>>
>>> Good question, you might want to ask that to cloudera.
>>>
>>> J-D
>>>
>>> On Thu, Mar 17, 2011 at 4:00 PM, Geoff Hendrey <ghendrey@decarta.com>
>>> wrote:
>>>> Hi -
>>>>
>>>>
>>>>
>>>> I just upgraded to CDH3B4. I noticed when I ran 'hadoop dfsadmin
>>>> -upgrade' that the logs on the datanodes showed that hadoop was
>>> "fixing"
>>>> the permissions of my dfs storage disks to "rwx------". I am just
>>>> wondering why it does this? I had been using a subdirectory of one of
>>>> the disks for hadoop.tmp.dir, and of course now the hadoop.tmp.dir
>>>> cannot be written.
>>>>
>>>>
>>>>
>>>> -geoff
>>>>
>>>>
>>>
>>
>



-- 
Todd Lipcon
Software Engineer, Cloudera

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