hadoop-mapreduce-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From ling cao <ling.c...@gmail.com>
Subject Re: how to parse a sequence file in my local filesystem
Date Tue, 28 Jun 2011 03:52:12 GMT
Maybe i didn't describe my question clearly, i know the hadoop fs command
can do it
but i need to parse it without hdfs environment,
the file is on my disk(for example: D://test.seq),
and how to  write a java class to parse it?


2011/6/27 Joey Echeverria <joey@cloudera.com>

> If the data is text you can always print out the sequence file using
> this command:
>
> hadoop fs -text file:///my/directory/file.seq
>
> This will parse the sequence file, convert each key and value to a
> string and print it to stdout. Notice the file:// in the path, that
> will cause hadoop to access the local file system.
>
> -Joey
>
> On Mon, Jun 27, 2011 at 5:04 AM, ling cao <ling.caol@gmail.com> wrote:
> > hi
> > i have a small sequence file (about 1k) which is produced by a hive job,
> and
> > i need to parse it in my local filesystem,not in hdfs
> > is there any easy way to do it ?
> > Thanks
> >
> >
>
>
>
> --
> Joseph Echeverria
> Cloudera, Inc.
> 443.305.9434
>

Mime
View raw message