Hadoop Distributed Caching Technology

2014-10-20 Thread Maity, Debashish
Hi,

Is there a way to use some other cache technology instead of memcache which is 
out of box in Hadoop Map-Reduce jobs.

Cheers,
Deb



Re: Hadoop Distributed Caching Technology

2014-10-20 Thread Andrew Wang
Hi Deb,

We added support for centralized cache management to HDFS, which is out of
the box and works with MR jobs.

See the docs here:

http://hadoop.apache.org/docs/r2.5.0/hadoop-project-dist/hadoop-hdfs/CentralizedCacheManagement.html

Best,
Andrew

On Mon, Oct 20, 2014 at 8:07 AM, Maity, Debashish 
debashish.ma...@softwareag.com wrote:

 Hi,

 Is there a way to use some other cache technology instead of memcache
 which is out of box in Hadoop Map-Reduce jobs.

 Cheers,
 Deb




RE: Hadoop Distributed Caching Technology

2014-10-20 Thread Maity, Debashish
So how I am going to change to other cache technology like Hazelcast or ehcache 
etc.



-Original Message-
From: Andrew Wang [mailto:andrew.w...@cloudera.com] 
Sent: Monday, October 20, 2014 8:52 PM
To: common-dev@hadoop.apache.org
Subject: Re: Hadoop Distributed Caching Technology

Hi Deb,

We added support for centralized cache management to HDFS, which is out of the 
box and works with MR jobs.

See the docs here:

http://hadoop.apache.org/docs/r2.5.0/hadoop-project-dist/hadoop-hdfs/CentralizedCacheManagement.html

Best,
Andrew

On Mon, Oct 20, 2014 at 8:07 AM, Maity, Debashish  
debashish.ma...@softwareag.com wrote:

 Hi,

 Is there a way to use some other cache technology instead of memcache 
 which is out of box in Hadoop Map-Reduce jobs.

 Cheers,
 Deb




Re: Hadoop Distributed Caching Technology

2014-10-20 Thread Sandy Ryza
Hi Debashish,

Do you mind describing in a little more detail the benefits you're
interested in with different caching technology?  The Hadoop distributed
cache, HDFS caching, memcached, and Hazelcast are all related to caching,
but aim to solve very different problems.

-Sandy

On Mon, Oct 20, 2014 at 12:01 PM, Maity, Debashish 
debashish.ma...@softwareag.com wrote:

 So how I am going to change to other cache technology like Hazelcast or
 ehcache etc.



 -Original Message-
 From: Andrew Wang [mailto:andrew.w...@cloudera.com]
 Sent: Monday, October 20, 2014 8:52 PM
 To: common-dev@hadoop.apache.org
 Subject: Re: Hadoop Distributed Caching Technology

 Hi Deb,

 We added support for centralized cache management to HDFS, which is out of
 the box and works with MR jobs.

 See the docs here:


 http://hadoop.apache.org/docs/r2.5.0/hadoop-project-dist/hadoop-hdfs/CentralizedCacheManagement.html

 Best,
 Andrew

 On Mon, Oct 20, 2014 at 8:07 AM, Maity, Debashish 
 debashish.ma...@softwareag.com wrote:

  Hi,
 
  Is there a way to use some other cache technology instead of memcache
  which is out of box in Hadoop Map-Reduce jobs.
 
  Cheers,
  Deb