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From "Dhruba Borthakur" <dhr...@gmail.com>
Subject Re: hdfs appending writes
Date Thu, 19 Jun 2008 07:41:08 GMT
The "append" feature is being worked on. It will probably get into the
0.19 release. details here
http://issues.apache.org/jira/browse/HADOOP-1700

thanks,
dhruba

On Thu, Jun 19, 2008 at 12:31 AM, Tzury Bar Yochay <tzury.by@gmail.com> wrote:
> Hi,
>
> quoting from the documentation at
> http://hadoop.apache.org/core/docs/current/hdfs_design.html
>
> Simple Coherency Model
>
> HDFS applications need a write-once-read-many access model for files. A file
> once created, written, and closed need not be changed. This assumption
> simplifies data coherency issues and enables high throughput data access. A
> MapReduce application or a web crawler application fits perfectly with this
> model. There is a plan to support appending-writes to files in the future.
>
>
> I was wondering whether this plan ever implemented.
>
> appending-writes are must in my application. and reliable,searchable and
> mapreduable distributed system is a must as well.
> thus I looked at hadoop thinking it might be the right platform for the
> project.
>
> --
> Tzury Bar Yochay
>

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