Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
MapReduce >> mail # user >> whether dfs.domain.socket.path is supported in Hadoop 1.1?

Copy link to this message
Re: whether dfs.domain.socket.path is supported in Hadoop 1.1?
HDFS-347 introduced this feature, and it is currently only available
in 2.1.x onwards.

On Wed, Sep 11, 2013 at 12:00 AM, Jun Li <[EMAIL PROTECTED]> wrote:
> Hi,
> In the link,
> http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/hdfs-default.xml,
> the explanation:
> dfs.domain.socket.path
> is that:
> "Optional. This is a path to a UNIX domain socket that will be used for
> communication between the DataNode and local HDFS clients. If the string
> "_PORT" is present in this path, it will be replaced by the TCP port of the
> DataNode."
> I am trying to evaluate the short-circuit read and find that typically this
> dfs.domain.socket.path is used in conjunction to enabling the short circuit
> for HDFS.
> I am using Hadoop 1.1.2. And from the source code of Hadoop 1.1.2, I can not
> find the configuration parameter of this "dfs.domain.socket.path" and I
> wonder whether this parameter setting only gets used by  Hadoop 2.* release?
> Could you provide explanation on this about the Hadoop version support?
> Regards,
> Jun

Harsh J