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| Provides an HBase <a href="http://avro.apache.org">Avro</a> service. |
| |
| This directory contains an Avro interface definition file for an HBase RPC |
| service and a Java server implementation. |
| |
| <h2><a name="whatisavro">What is Avro?</a></h2> |
| |
| <p>Avro is a data serialization and RPC system. For more, see the |
| <a href="http://avro.apache.org/docs/current/spec.html">current specification</a>. |
| </p> |
| |
| <h2><a name="description">Description</a></h2> |
| |
| <p>The <a href="generated/HBase.html">HBase API</a> is defined in the |
| file hbase.genavro. A server-side implementation of the API is in |
| <code>org.apache.hadoop.hbase.avro.AvroServer</code>. The generated interfaces, |
| types, and RPC utility files are checked into SVN under the |
| <code>org.apache.hadoop.hbase.avro.generated</code> directory. |
| |
| </p> |
| |
| <p>The files were generated by running the commands: |
| <pre> |
| java -jar avro-tools-1.3.2.jar genavro hbase.genavro hbase.avpr |
| java -jar avro-tools-1.3.2.jar compile protocol hbase.avro $HBASE_HOME/src/java |
| </pre> |
| </p> |
| |
| <p>The 'avro-tools-x.y.z.jar' jarfile is an Avro utility, and it is |
| distributed as a part of the Avro package. Additionally, specific |
| language runtime libraries are apart of the Avro package. A version of the |
| Java runtime is listed as a dendency in Maven. |
| </p> |
| |
| <p>To start AvroServer, use: |
| <pre> |
| ./bin/hbase avro start [--port=PORT] |
| </pre> |
| The default port is 9090. |
| </p> |
| |
| <p>To stop, use: |
| <pre> |
| ./bin/hbase-daemon.sh stop avro |
| </pre> |
| </p> |
| </body> |
| </html> |
