KijiSchema is a layout and schema management layer on top of Apache HBase. KijiSchema supports complex, compound data types using Avro serialization, as well as cell-level evolving schemas that dynamically encode version information.
KijiSchema includes both commandline tools and a simple Java API to manipulate tables, layouts, and data. It also provide native MapReduce Input/Output formats for Kiji tables.
For more information about KijiSchema, see the Kiji project homepage.
KijiSchema requires Apache Maven 3 to build. It may be built with the command
mvn clean package
or by executing bin/kiji from the root of a checkout. This will create a release in the
target directory.
KijiSchema requires an HBase and Hadoop cluster to run. Confirm that $HADOOP_HOME and
$HBASE_HOME are set appropriately. Then issue the following command from your KijiSchema
root directory:
bin/kiji install
This will install a Kiji instance on the hbase cluster named 'default'.
For commandline tool usage, issue the command:
bin/kiji
Further documentation is available at the Kiji project Documentation Portal
Below are some known issues with the CDH5 port, incompatibilities, etc. Remove this section when this is done.
- Code depends on HConnectionManager.createConnection() which doesn't exist HBase < 0.94.11
- Needs an implementation of table pool. Code is commented out.
- Security is disabled. Code is commented out.