5.3.1.1. Apache Cassandra Setup¶

Note

In this setup, Apache Cassandra is set up on the same machine with intra-mart Accel Platform.

• Obtain Apache Cassandra.

  Apache Cassandra can be downloaded from the URL below.

  http://archive.apache.org/dist/cassandra/1.1.12/apache-cassandra-1.1.12-bin.tar.gz

• After downloading, <apache-cassandra-1.1.12-bin.tar.gz> file is expanded to the arbitrary path.

  [*] Please use unzip tool that can expand zip file in TAR-GZ format for file expansion.

  Note

  Following directory is specified as an example in this document.

  [C:/apache-cassandra-1.1.12]

• Open <C:/apache-cassandra-1.1.12/bin/cassandra.bat> file by the editor.

  • Memory value suitable for the installation environment is specified.

    Specify the minimum heap size to [Xms] property and the maximum heap size for [Xmx] property.

    Note

    set JAVA_OPTS=-ea^

    -javaagent:”%CASSANDRA_HOME%libjamm-0.2.5.jar”^

    -Xms512M^

    -Xmx512M^

    Warning

    The value to be set should be [512M] or larger.

    As Cassandra, it is recommended to set it to 1GB or above.

    If you set the value which is smaller than [512M], it may not work properly.

• Add the home directory where JDK7 is installed to the Windows environment variable.

  Please set as follows according to the Windows OS manual.

  Variable	JAVA_HOME
  Value	Home directory where JDK is installed.

5.3.1.2. Editing Configuration File¶

• Environment setting is to be made.

  *Open <C:/apache-cassandra-1.1.12/conf/cassandra.yaml> file by editor.

  Warning

  This file has read-only attribute immediately after file expansion, so please remove it in advance.

  • Specify save location of the data.

    If there is no specified directory, it would be automatically created at startup time.

    Specify the arbitrary path to [data_file_directories] property.

    Note

    Following contents should be specified as an example in this document.

    data_file_directories:

    - C:/apache-cassandra-1.1.12/data_file

  • Specify save location of CommitLog.

    If there is no specified directory, it would be automatically created at startup time.

    Specify arbitrary path to [commitlog_directory] property.

    Note

    Following contents are specified as an example in this document.

    # commit log

    commitlog_directory: C:/apache-cassandra-1.1.12/commit_log

  • Specify save location of cache data.

    If there is no specified directory, it would be automatically created at startup time.

    Specify arbitrary path to [saved_caches_directory] property.

    Note

    Following contents are specified as an example in this document.

    # saved caches

    saved_caches_directory: C:/apache-cassandra-1.1.12/saved_caches

  • Open <C:/apache-cassandra-1.1.12/conf/log4j-server.properties> file by editor.

    Warning

    This file has read-only attribute immediately after file expansion, so please remove it in advance.

    • Specify save location of system log.

      Specify arbitrary path to [log4j.appender.R.File] property.

      Note

      Following contens are specified as an example in this document.

      log4j.appender.R.File=C:/apache-cassandra-1.1.12/system.log

5.3.1.3. Apache Cassandra Startup¶

• Start up Apache Cassandra.

  Double click <C:/apache-cassandra-1.1.12/bin/cassandra.bat>.

  Startup would be completed if the message below is displayed on the command prompt.

  INFO 12:55:11,319 Using synchronous/threadpool thrift server on localhost/127.0.0.1 : 9160
  INFO 12:55:11,320 Listening for thrift clients...
  

  Note

  When you start up Apache Cassandra, please change the port number setting if the following error occurs.

  Error : Agent throws the exception : java.rmi.server.ExportException: Port already in use: 7199;
  nested exception is: java.net.BindException: Address already in use: JVM_Bind
  

  Open <C:/apache-cassandra-1.1.12/bin/cassandra.bat> file by the editor.

  Please change [7199] that is set to Dcom.sun.management.jmxremote.port property

  to the port number which has not been used such as [7198].

  -Dcom.sun.management.jmxremote.port=7198^
  

  If the change was successful, please start up Apache Cassandra again.

  Note

  If the startup from the second and subsequent time does not work properly,

  Delete <C:/apache-cassandra-1.1.12/commit_log> directory and start up Apache Cassandra.

  Note

  How to stop Apache Cassandra

  Execute [Ctrl] + [C] command on the command prompt that appeared at startup time, and stop the process.

Please refer to [Cassandra Administrator Guide ] for more detailed settings.

Then, please proceed to [ Apache Solr ].