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RELEASE NOTES: Hortonworks Data Platform powered by Apache Hadoop

Product Version: HDP-1.0.0 PREVIEW 2
=======================================
This release of Hortonworks Data Platform (HDP) deploys the following Hadoop-related components:  
* Apache Hadoop 0.20.205.0
* Apache Pig 0.9.0
* Apache HBase 0.90.4
* Apache HCatalog 0.2 
* Apache Hive 0.7.1*
* Apache Zookeeper 3.3.2

* The included version of Hive incorporates few patches over and above the Hive 0.8  release in order to achieve compatibility with HCatalog; we expect these patches or equivalent to be included in future Apache releases of Hive. 

Known issues with HDP-1.0.0-Preview-2 
========================================
* Installation must be performed as the root user.  The cluster must be configured to allow the root user to do password-less ssh between any two servers in the cluster.
*  This version is certified for use on RHEL 5 only.  RHEL 6 and CentOS 5 and 6 are in process of being certified. 
*  This version does not yet support debs for Debian and Ubuntu installation. 
*  This version of gsInstaller.sh does not yet support cluster upgrades.
*  In this version, all servers in the cluster must be on the Internet, to access the repositories, and all servers independently download the Apache artifacts. In future versions, only the primary install server will access the repositories, once, then copy the artifacts over the LAN to the other servers in the cluster.
* If JDK installation is requested, it may fail on some servers due to problems downloading from the provider. If you encounter this problem, install the JDK on all cluster servers before running gsInstaller.
* This version of the installer does not push in parallel, so large clusters may take a while to deploy (approximately 30 sec per server).  Also, communications problems during install may result in very long timeouts.
* Apache Hadoop is installed with the basic set of configuration which is part of the Apache Hadoop rpm. Configuration may be changed after installation, but this version of the installer does not assist in doing so. 
* Apache HBase is not configured for HA, as zookeeper is configured only on the hbase master node.
* The installer installs Datanodes, Tasktrackers and HBase regionservers on the same nodes, as standard practice.
* User must provide a mysql instance accessible from the cluster, while installing HCatalog.  
Secure deploys:  
* It is recommended that the user creates keytabs and principals for secure deploys.
* The provided script setupKerberos can be used as a reference.	User should install the security policy jars if java home is set by the user during secure deployment.  

Patches
========
* HBase rpm is patched to include HBASE-3606, HBASE-4415, HBASE-4498 and HBASE-4523. 
* Hive rpm is built from svn revision 1148878 on Hive trunk in the Apache svn repository.  This version of Hive is a superset of version 0.7.1, and is required for compatibility with HCatalog 0.2.  
* The next version of HCatalog is expected to use a standard release version of Hive.     
* Pig RPM is patched to include PIG-2356 to be able to build RPM package.

About Hortonworks
=====================
Hortonworks offers technical support subscriptions for Hortonworks Data Platform. For more information, please visit http://hortonworks.com/support/ or contact us directly at info@hortonworks.com.