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From Eli Collins <...@cloudera.com>
Subject Re: hsync in hadoop 2.0?
Date Mon, 04 Jun 2012 17:50:43 GMT
+1

IMO we should hold off on branch-1 unless people really need it.

On Mon, Jun 4, 2012 at 10:33 AM, Tsz Wo Sze <szetszwo@yahoo.com> wrote:
> +1
>
> Since no one is objecting, I will merge HDFS-744 to 2.0.
>
> For 1.x, it needs more thoughts because it is likely to be an incompatible change.
>
>
> Tsz-Wo
>
>
>
>
> ________________________________
>  From: Todd Lipcon <todd@cloudera.com>
> To: hdfs-dev@hadoop.apache.org
> Cc: lars hofhansl <lhofhansl@yahoo.com>
> Sent: Friday, June 1, 2012 10:04 AM
> Subject: Re: hsync in hadoop 2.0?
>
> +1, it's protocol-compatible, I don't see any reason not to put it in 2.0.x.
>
> On Fri, Jun 1, 2012 at 5:02 AM, Andrew Purtell <apurtell@apache.org> wrote:
>> +1 for 2.0
>>
>> For those trying to stabilize that for deployment early next year, commit
>> of this only to trunk won't help as much, though a private backport could
>> happen in that case.
>>
>>    - Andy
>>
>> On Friday, June 1, 2012, lars hofhansl wrote:
>>
>>> HDFS-744 adds support for true durable sync for DFSOutputStream.hsync().
>>> This is useful for HBase (among others) and I created a matching patch in
>>> HBASE-5954.
>>>
>>> I would like to port this back into Hadoop 2.0 and maybe even 1.0.
>>> A 2.0 patch is already attached to HDFS-744. (The 1.0 patch would be quite
>>> different, but the underlying implementation would be the same)
>>>
>>>
>>> If I understand correctly Hadoop 2.0 is not out of alpha, yet.
>>>
>>> Thoughts?
>>>
>>> -- Lars
>>>
>>
>>
>> --
>> Best regards,
>>
>>   - Andy
>>
>> Problems worthy of attack prove their worth by hitting back. - Piet Hein
>> (via Tom White)
>
>
>
> --
> Todd Lipcon
> Software Engineer, Cloudera

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