Table of Contents

  1. Preface
  2. Introduction to Informatica Edge Data Streaming
  3. Licenses
  4. Using Informatica Administrator
  5. Creating and Managing the Edge Data Streaming Service
  6. Edge Data Streaming Entity Types
  7. Edge Data Streaming Nodes
  8. Data Connections
  9. Working With Data Flows
  10. Managing the Edge Data Streaming Components
  11. Security
  12. High Availability
  13. Disaster Recovery
  14. Monitoring Edge Data Streaming Entities
  15. Troubleshooting
  16. Frequently Asked Questions
  17. Regular Expressions
  18. Command Line Program
  19. Configuring Edge Data Streaming to Work With a ZooKeeper Observer
  20. Glossary

User Guide

User Guide

Built-in Source Service Types

You can use the built-in source service types to consume data from data streams and common data file formats. EDS includes the client libraries that a built-in source service type requires to consume data from a data source.
Source services read data in events. An event consists of one or more complete records. Specify the event size for a source service when you configure the source service. Event size defines the maximum length of data that a source service can read or receive at a time, and it determines the performance of a source service. The greater the event size, the more the messages that a source service can include in an event. The default event size is 8192 bytes. The length of the message includes the delimiter.
If a read operation that a source service performs returns an event that is equal to or less than the specified event size, the source publishes the event only if the records in the event contain a delimiter.
Source services optionally use an internal store to store events before sending them to the target services. This store is located on the machine on which the EDS Node that is associated with the source service is running. If there are network connectivity issues or the target services that the source service publish data to go down, the source services store the events in the internal store. When the network connectivity is restored or the target services come up, the source services retrieve data from the store and publish them again.
When you add a source service to data flow, you can configure the internal store options.
If you select the Streaming messaging mode, the internal store of the source service is not supported.
EDS includes the following built-in source services:
  • File
  • HTTP(S)
  • JMS
  • MQTT
  • OPC DA
  • Static File
  • Syslog TCP
  • Syslog UDP
  • Syslog UDS
  • TCP
  • UDP
  • Ultra Messaging
  • WebSocket(S)

Updated March 19, 2019

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