Convert data instances into decision parameter rules
Valid from Pega Version 7.1.8
The Convert groups wizard is available in the Hierarchy landing page when the list of your propositions include decision data records.
Click Convert groups at the top of the landing page to use the wizard and to convert data instances into decision parameter rules. This conversion is necessary to make the existing proposition data instances available for revision management.
Update to the Data Flows rule
Valid from Pega Version 7.1.8
It is now possible to collect statistics for each active data flow. These include the number of processed records, records that caused errors and last processed records per shape, as well as historical throughput measured for the entire data flow.
There are two new patterns in the Data Flow rule:
- Event Strategy - define this pattern to use an event strategy in a data flow and to connect a data stream and static data sources to an event strategy.
- Filter - specify filter conditions and apply them to each element of the input flow
Apart from this, the Merge pattern was updated to execute the flow when there is no data on the secondary branches and the Strategy pattern allows you to specify the class where you want to store your strategy results.
New Dynamic System Setting for proposition management
Valid from Pega Version 7.1.8
A new Dynamic System Setting affects the process of creating new groups on the Proposition Management landing page.
When the PropositionManagement/isOnlyVersionedProposition parameter is set to true, users can only create the versioned propositions.
When the PropositionManagement/isOnlyVersionedProposition parameter is set to false, the Create Group dialog allows users to create either the versioned or unversioned propositions (the Create versioned proposition data check box and the Decision data rule section are both displayed).
New form of the HBase rule
Valid from Pega Version 7.1.8
There is a new form of the HBase rule. While you cannot create any new instances of the Pega 7.1.7 HBase rule, legacy instances in your application remain functional. You can still use the Pega 7.1.7 instances of the HBase rule, but you cannot make changes to them.
New data sets
Valid from Pega Version 7.1.8
There are three new types of data sets:
- HDFS Data Set, which reads and saves data from external, distributed Apache Hadoop file systems.
- HBase Data Set, which supports HBase storage.
- Stream Data Set, which processes the continuous data stream of events.
Real-time processing of data flows
Valid from Pega Version 7.1.8
It is possible to run, manage, and monitor data flows that use stream as their data source. You can create a new run from the Real-time processing landing page.
Decision Data Store data sets can be used only on DNodes
Valid from Pega Version 7.1.8
Data flows that contain Decision Data Store data sets as the primary or secondary source must be created and executed only on DNodes.
Data flows are not restarted automatically after application server restart
Valid from Pega Version 7.1.8
When you restart the application server or the Pega 7 server, you stop the execution of your data flows. The interrupted batch and real-time runs are marked as Failed.
Recommendation:
- Go to the > > > > tab and start the failed batch runs.
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Go to the > > > > tab and activate the failed real-time runs.
Value list and value group properties are not supported inside data flows
Valid from Pega Version 7.1.8
Value list and value group properties are not supported inside data flows, and you need to instead use other property types.
See the Pega 7 developer help to check all available property types.
Data flow preview size is fixed to 10
Valid from Pega Version 7.1.8
The Preview option for each shape in data flows returns the first 10 records. This value is fixed and currently cannot be changed.