| These notes are for HCatalog 0.1.0 release. |
| |
| Highlights |
| ========== |
| |
| This is the initial relase of Apache HCatalog. It provides read and write capability for Pig and Hadoop, and read capability for Hive. |
| |
| System Requirements |
| =================== |
| |
| 1. Java 1.6.x or newer, preferably from Sun. Set JAVA_HOME to the root of your |
| Java installation |
| 2. Ant build tool, version 1.8 or higher: http://ant.apache.org - to build |
| source only |
| 3. This release is compatible with Hadoop 0.20.x with security. Currently this |
| is available from Cloudera in their CDH3 release or from the 0.20.203 branch |
| of Apache Hadoop (not yet released). |
| 4. This release is compatible with Pig 0.8.1. |
| 5. This release is compatible with Hive 0.7.0. |
| |
| Trying the Release |
| ================== |
| 1. Download hcatalog-0.1.0.tar.gz |
| 2. Unpack the file: tar -xzvf hcatalog-0.1.0.tar.gz |
| 3. See the installation directions at http://incubator.apache.org/hcatalog/docs/r0.1.0/install.html |
| 4. To use with Hadoop MapReduce jobs, use the HCatInputFormat and |
| HCatOutputFormat classes. |
| 5. To use with Pig, use the HCatLoader and HCatStorer classes. |
| 6. To use the command line interface, set HADOOP_CLASSPATH to the directory |
| that contains the configuration files for your cluster, and use bin/hcat.sh |
| |
| Relevant Documentation |
| ====================== |
| See http://incubator.apache.org/hcatalog/docs/r0.1.0 |
