LiveView Metadata Store

The LiveView client API import and export methods can be used to import resources from one node to the other:

Shared resources between LiveView servers include:

The following describes options for sharing resources between nodes when all nodes in the cluster contain the same metadata store type, and all servers are the same version.

You must configure each server with the same storeType type in a LiveView Engine configuration file.

The example below defines the storeType property with a value of JDBC and uses the jdbcDataSource property to define a source called myJDBCSource. If you define a JDBC data source in the engine configuration file, you must use the same JDBC data source value in a JDBC configuration file (see below).

Setting the storeType to TRANSACTIONAL_MEMORY or H2 does not require additional metadata store configuration.

name = "myldmengine"
version = "1.0.0"
type = "com.tibco.ep.ldm.configuration.ldmengine"
configuration = {
  LDMEngine = {
    ldm = {
      metadataStore = {
        storeType = "JDBC" 
        jdbcDataSource = "myJDBCSource"        
        jdbcMetadataTableNamePrefix = "LV_CLUSTER1_"       
      }
    }
  }
}

name = "myldmengine"
version = "1.0.0"
type = "com.tibco.ep.ldm.configuration.ldmengine"
configuration = {
  LDMEngine = {
    ldm = {
    ...
    systemProperties = { 
      "liveview.metadata.resource.file.name" = "myconfiguration.json" }
    ...

Configure an EventFlow JDBC Data Source Group configuration file when the LiveView engine configuration file specifies a JDBC storeType (see above).

A JDBC configuration file can define multiple JDBC data sources. To enable resource sharing between LiveView servers, your JDBC configuration file must contain at least one data source, and the value must match the value defined in the engine configuration file. This example defines one JDBC source called myJDBCSource.

name = "mydatasource"
version = "1.0.0"
type = "com.tibco.ep.streambase.configuration.jdbcdatasource"
configuration = {
  JDBCDataSourceGroup = {
    associatedWithEngines = [ "javaengine", "otherengine[0-9]" ]
    jdbcDataSources = {    
      myJDBCSource = {    
        ...
      }
    }
  }
}

If authentication is enabled, and only if you want to import and export data, the Role to Privileges Mappings configuration file is required to allow importing and exporting resources between LiveView nodes. Your configuration file must define a user that includes the following or higher-level privileges:

In practice you often define users with multiple LiveView privileges, depending on user role. The following example defines a user with all LiveView privileges, which includes both privileges described above.

name = "my-role-mappings"
version = "1.0.0"
type = "com.tibco.ep.dtm.configuration.security"
configuration = {
  RoleToPrivilegeMappings = {
    privileges = {
      admin = [
        {
          privilege = "LiveViewAll"
        }
      ]
    }
  }
}