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Follow the instructions below to set up WSO2 BAM and the API Manager.

Prerequisites

Ensure that you have the following in your environment,

• JDK 1.6.* or 1.7
• Cygwin ( http://www.cygwin.com ) : Required only if you use Windows. WSO2 BAM analytics framework depends on Apache Hadoop, which requires Cygwin in order to run on Windows. Install at least the basic net (OpenSSH,tcp_wrapper packages) and security related Cygwin packages. After Cygwin installation, update the PATH variable with C:\cygwin\bin and restart BAM.

Configuring WSO2 API Manager

1. Enable API tracking option by setting the <APIUsageTracking> element to true in <APIM_HOME>/repository/conf/api-manager.xml. Also specify the data source used for getting BAM statistics in <DataSourceName> element. For example,

   Code Block
   language html/xml
   <APIUsageTracking> <!-- Enable/Disable the API usage tracker. --> <Enabled>true</Enabled> <PublisherClass>org.wso2.carbon.apimgt.usage.publisher.APIMgtUsageDataBridgeDataPublisher</PublisherClass> <ThriftPort>7612</ThriftPort> <BAMServerURL>tcp://localhost:7612/</BAMServerURL> <BAMUsername>admin</BAMUsername> <BAMPassword>admin</BAMPassword> <!-- JNDI name of the data source to be used for getting BAM statistics. This data source should be defined in the master-datasources.xml file in conf/datasources directory. -->   <DataSourceName>jdbc/WSO2AM_STATS_DB</DataSourceName> </APIUsageTracking>

2. Specify the data source definition in <APIM_HOME>/repository/conf/datasources/master-datasources.xml file as follows.  WSO2AM_STATS_DB is the datasource used to fetch analytical data. Note that the JNDI config names must match the ones defined earlier in BAM.
   

   Code Block
   language html/xml
   <datasource> <name>WSO2AM_STATS_DB</name> <description>The datasource used for getting statistics to API Manager</description> <jndiConfig> <name>jdbc/WSO2AM_STATS_DB</name> </jndiConfig> <definition type="RDBMS"> <configuration> <!-- JDBC URL to query the database --> <url>jdbc:h2:<BAM_HOME>/repository/database/APIMGTSTATS_DB;AUTO_SERVER=TRUE</url> <username>wso2carbon</username> <password>wso2carbon</password> <driverClassName>org.h2.Driver</driverClassName> <maxActive>50</maxActive> <maxWait>60000</maxWait> <testOnBorrow>true</testOnBorrow> <validationQuery>SELECT 1</validationQuery> <validationInterval>30000</validationInterval> </configuration> </definition> </datasource>

   Note
   In the above configuration, Replace <BAM_HOME> with the absolute path of BAM installation directory. The JNDI config name must match with configurations of api-manager.xml file defined later in this guide.

   
   Next, prepare BAM to collect and analyze statistics from API manager.

Configuring WSO2 BAM

1. Download WSO2 BAM 2.3.0 or later from location: http://wso2.com/products/business-activity-monitor.

2. Change port offset of BAM to 1 by editing the file <BAM_HOME>/repository/conf/carbon.xml file (search for the offset node).

   Code Block
   language html/xml
   <!-- Ports offset. This entry will set the value of the ports defined below to the define value + Offset. e.g. Offset=2 and HTTPS port=9443 will set the effective HTTPS port to 9445 --> <Offset>1</Offset>

   This increments all ports used by the server by 1, which means the BAM server will run on port 9444. Port offset is used to increment the default port by a given value. It avoids possible port conflicts when multiple WSO2 products are run in same host.

3. Copy the file <APIM_HOME>/statistics/API_Manager_Analytics.tbox to directory, <BAM_HOME>/repository/deployment/server/bam-toolbox. If you use Oracle DB to store statistical data, copy API_Manager_Analytics_Oracle.tbox instead.
   
   If this folder is not in the BAM installation home by default, create it and copy the file.
   

   The API Manager Analytic Toolbox

   A toolbox is an installable archive, with a .tbox extension. It contains necessary artifacts that models a complete usecase, from collecting data, analyzing through defined Hive scripts to summarizing data through gadgets, Jaggery scripts and other dashboard components.

4. Configure a database to which BAM can write analyzed information to. This information is retrieved by the API Publisher before displaying on the corresponding statistical dashboards.

5. Specify the data source definition in <BAM_HOME>/repository/conf/datasources/master-datasources.xml file as follows. 
   
   WSO2AM_STATS_DB is the datasource used to fetch analytical data. This example uses an H2 database. If you want to use a different database, see Changing the statistics database.
   

   Code Block
   language html/xml
   <datasource> <name>WSO2AM_STATS_DB</name> <description>The datasource used for getting statistics to API Manager</description> <jndiConfig> <name>jdbc/WSO2AM_STATS_DB</name> </jndiConfig> <definition type="RDBMS"> <configuration> <!-- JDBC URL to query the database --> <url>jdbc:h2:<BAM_HOME>/repository/database/APIMGTSTATS_DB;AUTO_SERVER=TRUE</url> <username>wso2carbon</username> <password>wso2carbon</password> <driverClassName>org.h2.Driver</driverClassName> <maxActive>50</maxActive> <maxWait>60000</maxWait> <testOnBorrow>true</testOnBorrow> <validationQuery>SELECT 1</validationQuery> <validationInterval>30000</validationInterval> </configuration> </definition> </datasource>

6. Because you changed the default BAM port in step 2 above, you must change the Cassandra port given in JDBC connection url in the following datasource configuration found in master-datasources.xml file. Since the port offset is 1, the Cassandra port must be 9161.

   Code Block
   language html/xml
   <datasource> <name>WSO2BAM_CASSANDRA_DATASOURCE</name> <description>The datasource used for Cassandra data</description> <definition type="RDBMS"> <configuration> <url>jdbc:cassandra://localhost:9161/EVENT_KS</url> <username>admin</username> <password>admin</password> </configuration> </definition> </datasource>

   Note
   If you run the Hive scripts before changing the default Cassandra port according to the BAM port offset, you keep getting an exception. To overcome this, add the following line at the beginning of the Hive script and rerun. drop table <hive_cassandra_table_name>;

7. Restart BAM server by running <BAM_HOME>/bin/wso2server.[sh/bat].

8. If you want to host the BAM server on a different machine or change the running port, you must edit the <APIUsageTracking> node in <APIM_HOME>/repository/conf/api-manager.xml file as follows:

   Code Block
   language html/xml
   <!--API usage tracker configuration used by the BAM data publisher in API gateway.--> <APIUsageTracking> <!-- Enable/Disable the API usage tracker.--> <Enabled>true</Enabled> <!-- API Usage Data Publisher.--> <PublisherClass>org.wso2.carbon.apimgt.usage.publisher.APIMgtUsageDataBridgeDataPublisher</PublisherClass> <!--Thrift port of the remote BAM server.--> <ThriftPort>7612</ThriftPort> <!-- Server URL of the remote BAM server used to collect statistics. Must be specified in protocol://hostname:port/ format.--> <BAMServerURL>tcp://localhost:7612</BAMServerURL> <!--Administrator username to login to the remote BAM server.--> <BAMUsername>admin</BAMUsername> <!--Administrator password to login to the remote BAM server.--> <BAMPassword>admin</BAMPassword> <!--JNDI name of the data source to be used for getting BAM statistics.This data source should be defined in the master datasources.xml file in conf/datasources directory.--> <DataSourceName>jdbc/WSO2AM_STATS_DB</DataSourceName> </APIUsageTracking>

Changing the statistics database

To use a different database than the default H2 for statistical publishing, you must change the properties of the datasource element, and additionally delete some metadata tables created by previous executions of the Hive script, if there are any.

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