A datasource is a connection set up to a storage of data, such as a database or a data file, from a server. A datasource provides information that a server can use to connect to a a storage of data.
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The default RDBMS type datasources , which that are shipped with WSO2 DAS are defined in the <DAS_HOME>/repository/conf/datsources/ directory can be viewed in the Datasources page as follows.
Master datasources
The WSO2_CARBON_DB master datasource, which is defined in the <DAS_HOME>/repository/conf/master-datasources.xml file is used to store data of registry and user manager of WSO2 DAS in a RDBMS.
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By default, this points to the in-built H2 database of the DAS. Replace the |
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The datasource configuration options are as follows. For more information on these configuration properties, see Apache TomEE Documentation.
Parameter | Description |
|---|---|
<url> | The URL of the database. |
<username> | The name of the database user. |
<password> | The password of the database user. |
<driverClassName> | The class name of the database driver. |
<maxActive> | The maximum number of active connections that can be allocated from this pool at the same time, or enter a negative value for no limit. |
<maxWait> | The maximum number of milliseconds that the pool will wait (when there are no available connections) for a connection to be returned before throwing an exception. You can enter zero or a negative value to wait indefinitely. |
<testOnBorrow> | The indication of whether objects will be validated before being borrowed from the pool. If the object fails to validate, it will be dropped from the pool, and another attempt will be made to borrow another. |
<validationQuery> | The SQL query that will be used to validate connections from this pool before returning them to the caller. |
validationInterval | The indication to avoid excess validation, and only run validation at the most, at this frequency (time in milliseconds). If a connection is due for validation, but has been validated previously within this interval, it will not be validated again. |
<defaultAutoCommit> | The default auto-commit state of new connections. |
Analytics datasources
Following analytics datasources are defined in the <DAS_HOME>/repository/conf/datsources/analytics-datasources.xml file. For more information on the usage and configuration of these datasources, see DAS Data Access Layer.
| Datasource Name | Description | ||
|---|---|---|---|
WSO2_ANALYTICS_ | FS_DBThis datasource is used by default to connect to the Analytics File System. | WSO2_ANALYTICS_EVENT_STORE_DB | This datasource is used by default to connect to the data store of the Analytics Record Store which stores event definitions. |
WSO2_ANALYTICS_PROCESSED_DATA_STORE_DB | This datasource is used by default to connect to the data store of the Analytics Record Store which stores processed data. |
Other datasources
The following are additional datasources shipped with WSO2 DAS by default.
| Datasource Name | Description |
|---|---|
WSO2_METRICS_DB | This datasource is used to store metrics related data of WSO2 DAS. |
WSO2_ML_DB | This datasource is used to store data relating to the Machine Learner component. |
Datasource types
The following sections explain the datasource types, which are used in DAS.
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