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MapReduce >> mail # user >> updates in hdfs


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Re: updates in hdfs
I was under the impression that file-append was deprecated in HDFS.
On Tue, Oct 30, 2012 at 10:13 PM, Harsh J <[EMAIL PROTECTED]> wrote:

> Shiv,
>
> HDFS does have file-append support (i.e. add data at end of a
> previously closed file). HDFS does not have random-write support (i.e.
> writing data at a selected offset in the file).
>
> What is your use-case though, that you seek to do updates over files
> on HDFS? Perhaps you are instead looking for HBase, which has a
> slightly different way of storing things but provides updates+versions
> in a way over HDFS.
>
> On Wed, Oct 31, 2012 at 10:28 AM, Siva Gudavalli
> <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > Is there any mechanism on how to do updates to a files on hdfs?
> >
> > Regards
> > shiv
>
>
>
> --
> Harsh J
>
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB