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HAZELCAST CLUSTER TOPIC - DATA SOURCE

Description

The HAZELCAST CLUSTER TOPIC data source is designed to retrieve data from a Hazelcast distributed topic. Hazelcast is an in-memory data grid that provides distributed data structures, including topics, which allow for publish-subscribe messaging patterns. This method is particularly useful for accessing and processing data that is distributed across a cluster of nodes, allowing for high availability and scalability. The HAZELCAST CLUSTER TOPIC data source supports various configuration options to customize the data retrieval process, including specifying the name of the topic from which data will be retrieved.

Config

REQUIRED

Config Parameters

Name Description
topicName The name of the Hazelcast distributed topic from which data will be retrieved. This is a required parameter.

Config Example

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<?xml version="1.0" encoding="UTF-8"?>
<apiroConf version="1" xmlns="http://apiro.com/apiro/v1/root">
    <loadOrder>10</loadOrder>
    <dataSources>
        <dataSource definition="HAZELCAST_CLUSTER_TOPIC" execPriority="10" name="TEST_CLUSTER_TOPIC_SOURCE">
            <config>
                <![CDATA[
                    {
                        "topicName" : "TEST_PUSH"
                    }
                ]]>
            </config>
        </dataSource>
    </dataSources>
</apiroConf>

Common Mistakes

  • Incorrect Topic Name: Ensure that the topicName parameter matches the name of an existing Hazelcast distributed topic within the cluster.
  • Cluster Configuration: Verify that the Hazelcast cluster is correctly configured and that the application has the necessary permissions to access the specified topic.
  • Network Issues: If you encounter connectivity issues, check the network configuration and ensure that the Hazelcast cluster is accessible from the machine running the data source.