hadoop-hdfs-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Tsz Wo Sze <szets...@yahoo.com>
Subject Re: hsync in hadoop 2.0?
Date Mon, 04 Jun 2012 17:33:47 GMT
+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
Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message