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{excerpt} How to set up and configure Pentaho (Kettle, Pentaho Data Integration, Pentaho Business Analytics Suite) for your specific Hadoop distribution.{excerpt}

h2. {color:red}This page applies to Pentaho Suite version 5.1.{color}   {color:red}For 5.2 or later, go{color} {color:red}[here|http://wiki.pentaho.com/display/BAD/Configuring+Pentaho+for+your+Hadoop+Distro+and+Version]{color}{color:red}.  {color}{color:red}For 5.0 or earlier, go{color} {color:red}[here|BAD:5.0 Configuring Pentaho for your Hadoop Distro and Version]{color}{color:red}.{color}

Pentaho  supports different versions of Hadoop distributions from several vendors such as Cloudera, Hortonworks and MapR. To support this many versions, Pentaho uses an abstraction layer, called a _shim_, that connects  to the different Hadoop distributions. A shim is a small library that intercepts API calls and either redirects or handles them, or changes the calling parameters. Periodically, Pentaho develops new shims as vendors develop  new Hadoop distributions and versions. These big data shims are tested  and certified by Pentaho engineers.  The following steps will help you get Pentaho set up to work with your Hadoop cluster.

{info:title=New Shims }
Pentaho provides Enterprise Edition support for distributions by Cloudera, Hortonworks and MapR. It is Pentaho's intention to support new distro's and versions by these vendors as soon as we can after general availability.  Sometimes this may take a long time.  Newly supported shims are made available via monthly service packs.


Due to the rapid pace of development and frequency of releases on the part of the distro vendors, Pentaho can only test and fully support the last two major releases for each vendor.  There is no reason that previous shims would stop working as new ones are released but we have to draw the line at 2.


This page, and the version matrix on it, reference both supported and unsupported distributions.  References to un-supported versions is for community users and does not imply support.
{info}

{anchor:GetShim}

h1. Determine the proper shim for your Hadoop Distro and version

_Pentaho is pre-configured for Apache Hadoop 0.20.2. If you are using  this distribution and version, no further configuration is required._

In the following table,  click the tab of the Hadoop distribution that you are interested in,  then locate the version of the distribution you want to use. Note the  name of the corresponding shim and the minimum version of the Pentaho  software that supports it.

For example,  if you want to use the Cloudera's CDH 4.2.1, click the Cloudera tab,  then look in the Hadoop version column. CDH4.2.x is supported with shim  cdh42. You need to have Pentaho Business Analytics (or Pentaho Data  Integration) version 5.0 or later installed to use this shim.

----
*Pentaho Shim Support Matrix*
{composition-setup}{composition-setup}
{deck:id=MyDeck|class=tan}


{card:label=Apache}
|| Version || Shim || Pentaho Suite Ver\+ || Download || Notes ||
| 0.20.x | hadoop-20 | 5.0 | included in 5.0, 5.1 | |
| 1.0.x | NS\* | | | No Support planned |
| 1.1.x | NS\* | | | No Support planned \\ |
| 1.2.x | NS\* | | | No Support planned \\ |
| 2.x.x | NS\* | | | No Support planned \\ |
_Go to_ _[Apache releases|http://hadoop.apache.org/releases.html]_
{card}

{card:label=Cloudera}
|| Version || Shim || Pentaho Suite Ver\+ || Download || Notes ||
| CDH4.0, 4.0.1, 4.1, 4.1.1 | cdh4 | 5.0 | [download|https://pentaho.box.com/50-cdh4] | The cdh42 shim also supports this configuration |
| CDH4.1.2 | cdh412 | 5.0 | [download|https://pentaho.box.com/50-cdh412] | The cdh42 shim also supports this configuration |
| CDH4.1.3 | cdh413 | 5.0 | [download|https://pentaho.box.com/50-cdh413] | The cdh42 shim also supports this configuration |
| CDH4.2.x | cdh42 | 5.0 | included in 5.0, 5.1 | Backward compatible with all earlier cdh4.x distributions |
| CDH4.3 - CDH4.6 | cdh42 | 5.0 | included in 5.0, 5.1 \\ | |
| CDH4.7 | \++cdh42 | NS | included in 5.0, 5.1 \\ | {color:#000000}\++Not yet QA tested but minor releases rarely have issues{color} [PDI-12313|http://jira.pentaho.com/browse/PDI-12313] |
| CDH5 | cdh50 | \**5.0.4 | [included with 5.0.6|https://pentaho.box.com/506-cdh50], 5.1 | |
| CDH5.1 | cdh51 | 5.2 | included with 5.2 | |

_Go to_ _[Cloudera releases|https://ccp.cloudera.com/display/SUPPORT/CDH+Downloads]_

{color:navy}\*NOTE: the cdh42 shim supports all versions of CDH from 4.0 through 4.6.x{color}



{card}
{card:label=Hortonworks}
|| Version || Shim || Pentaho Suite Ver\+ || Download || Notes ||
| HDP 1.2.x | hdp12 | 4.8 + BD Plugin 1.3.2\+ | [download|https://pentaho.box.com/50-hdp12] | |
| HDP 1.3.x | hdp13 | 4.8 + BD Plugin 1.3.2\+ | [download|https://pentaho.box.com/50-hdp13] | |
| HDP 1.3 for Win | \*NS | | | Testing and support is waiting for customer demand. Vote here: [PDI-10266|http://jira.pentaho.com/browse/PDI-10266] |
| HDP 2.0 | hdp20 | \**5.0.4 | included in 5.0.4 and 5.1 | |
| HDP 2.1 | hdp21 | 5.2 | included in 5.2 | |
_Go to_ _[Hortonworks releases|http://hortonworks.com/download/]_
{card}

{card:label=Intel}
|| Version || Shim || Pentaho Suite Ver\+ || Download || Notes ||
| IDH 2.3 | idh23 | 4.8 + BD Plugin 1.3.2\+ | [download|https://pentaho.box.com/50-idh23] | |
_Go to_ _[Intel releases|http://hadoop.intel.com/]_
{card}

{card:label=MapR}
|| Version || Shim || Pentaho Suite Ver\+ || Download || Notes ||
| 1.1.3, 1.2.0 | mapr | 4.8\+ | [download|https://pentaho.box.com/50-mapr] | |
| 2.0.x | NS\* | | | No Support planned [PDI-9648|http://jira.pentaho.com/browse/PDI-9648] |
| 2.1.x | mapr21 | 4.8 + BD Plugin 1.3.2\+ | included | |
| 3.0.x | mapr30 | \**5.0.4 | included with 5.0.4 | |
| 3.1.x | mapr31 | \**5.0.4 | included with 5.0.6, 5.1, 5.2 | This shim is available with the Enterprise Edition of Pentaho products and must be downloaded from [Pentaho Support|http://support.pentaho.com] |
| 4.0.x | \*NS | | | Support planned [PDI-12091|http://jira.pentaho.com/browse/PDI-12091] |
_Go to_ _[MapR releases|http://www.mapr.com/doc/display/MapR/MapR+Release+Notes]_
{card}
{deck}
*_\* NS - Not supported._* _See_ _[Hadoop Configurations]_ _for information on how to create or modify a shim to support your configuration_

*_+ Pentaho Suite Ver{_}* _is the earliest version of the Pentaho suite that supports this shim.  Subsequent Pentaho versions will also support this shim unless otherwise noted._

*_\*\* 5.0.4 - Only supported with Big Data Plugin 5.0.4 or later._* EE Customers can upgrade to 5.0.4 by going to [support.pentaho.com|http://support.pentaho.com] CE Users can upgrade by following the [Upgrade Hadoop in Community Edition to 5.0.4] instructions.
----
h1. If the Hadoop distribution you want is supported but not installed by default

You need to download the shim from our support site, click the *Download* link for the shim in the above table. For a list of all available shims, go to [5.0.0 shims|https://pentaho.app.box.com/50Shims] for version 5.0.0 to 5.0.3 and [5.0.4 shims|https://pentaho.box.com/s/kgs6rkvjr2l5kg5egifm]. _We recommend that you upgrade to 5.0.4 if possible_

Go to [BAD:Install Hadoop Distribution Shim] for instructions on how to install the shim.

h1. If the Hadoop distribution you want *is not* listed as supported in the table.

* Look at the table of Jira cases below. The shim you want might be scheduled for development, but not yet released.
* You can request that Pentaho develop one, [fill out a Jira ticket|http://pedroalves-bi.blogspot.com/2013/12/on-continuous-effort-to-try-to-improve.html].
* It is possible to develop it yourself, check out the [Hadoop Configuration page|Hadoop Configurations] for more information.

{anchor:SetActiveShim}

h1. Set Active Hadoop Distribution

These steps apply to DI and BA Servers as well as the design tools Spoon, Report Designer, and Metadata Editor.

Specify which Hadoop Distribution (shim) you want to make active. You must do this for each Pentaho application that needs access to the Hadoop cluster.  Only one distribution can be active at a time; so each time you change the distributions or version, you will need to reset the active Hadoop distribution.

# *Stop* the application (e.g. Spoon, DI Server, Report Design, BA Server, Metadata Editor) if it is running.
# *Navigate* to the *pentaho-big-data-plugin* folder. This folder is different for each application and located:
#* DI Server - *data-integration-server/pentaho-solutions/system/kettle/plugins/pentaho-big-data-plugin*
#* BA Server - *biserver-ee/pentaho-solutions/system/kettle/plugins/pentaho-big-data-plugin*
#* Spoon - *data-integration/plugins/pentaho-big-data-plugin*
#* Report Designer - *report-designer/plugins/pentaho-big-data-plugin*
#* Metadata Editor - *metadata-editor/plugins/pentaho-big-data-plugin*
# *Edit* the *plugin.properties* file.
# *Set* the *active.hadoop.configuration* property to match the name of  the shim you want to make active. For example, if the name of the shim  is *cdh42*, then the code would look like this: *active.hadoop.configuation=cdh42*.
# *Save* and close the *plugin.properties* file.

*YARN* shims require additional configuration.  See [BAD:Additional Configuration for YARN Shims] for more detail. 

*MapR users* need to do further configuration as described in [Additional Configuration for MapR Shims].

*CDH 5 users* who want to configure CDH 5 to use Map Reduce 1 instead of Map Reduce 2, follow the instructions in [Additional Configuration for using MR1 with CDH5].

h1. Open JIRA Cases for Hadoop Distribution Support
{jiraissues:anonymous=true|columns=key;fixVersion;summary;status;assignee;updated|url=http://jira.pentaho.com/sr/jira.issueviews:searchrequest-xml/temp/SearchRequest.xml?jqlQuery=labels+%3D+BD_Distro+AND+status+in+%28Open%2C+%22Resolved%22%2C+%22In+Progress%22%2C+Reopened%2C+%22Ready+For+Test%22%2C+%22Ready+for+Publishing%22%29&tempMax=1000}


h2. Next Steps

Now that you've configured Pentaho for your Hadoop distribution, there are many things you can do.  Here are a few links to get you started\!


* Check out how to [load data in a Hadoop cluster|http://wiki.pentaho.com/display/BAD/Loading+Data+into+a+Hadoop+Cluster].
* Learn how to [transform data within a cluster|http://wiki.pentaho.com/display/BAD/Transforming+Data+within+a+Hadoop+Cluster].
* Read about how to [extract data from a cluster|http://wiki.pentaho.com/display/BAD/Extracting+Data+from+the+Hadoop+Cluster].
* View information on how to [report data in Hadoop|http://wiki.pentaho.com/display/BAD/Reporting+on+Data+in+Hadoop].
* Learn more about [Pentaho MapReduce|http://wiki.pentaho.com/display/BAD/Advanced+Pentaho+MapReduce].
* [Explore the Pentaho Infocenter|http://infocenter.pentaho.com/help/index.jsp] to learn more about Pentaho software.

Want to switch gears and read something a little different? Check out these articles on the evolution of Hadoop.


* [Part I|http://drcos.boudnik.org/2012/01/what-you-wanted-to-know-about-hadoop.html?showComment=1357367337850#c4727344900010484442] and [Part II|http://drcos.boudnik.org/2013/01/what-you-wanted-to-know-about-hadoop.html] of Genealogy of Elephants
* [A brief history of Apache Hadoop branches and releases|http://blog.cloudera.com/blog/2012/01/an-update-on-apache-hadoop-1-0/]

[!http://2.bp.blogspot.com/-GO6HF0OAFHw/UOfNEH-4sEI/AAAAAAAAAD0/dEWFFYTRgYw/s1600/output-file.png|width=100,height=75!|http://2.bp.blogspot.com/-GO6HF0OAFHw/UOfNEH-4sEI/AAAAAAAAAD0/dEWFFYTRgYw/s1600/output-file.png]


[!http://hortonworks.com/wp-content/uploads/2014/04/asparagus_21.png|width=100,height=75!|http://hortonworks.com/wp-content/uploads/2014/04/asparagus_21.png]