(Glue-2105) Glue Queue

Owned by SNP
May 14, 2021
2 min read

Glue Queue object stores data in a cluster table (same for all Queues) in a byte string form. This enables to save data from the source in the fastest way. Later on, this data can be read using one or multiple Glue Queue Fetcher.

Creation of Glue Queue

  1. Run the transaction /DVD/GL80 to open Object Navigator

  2. In the context menu of the desired package select option Create GLUE Queue

  3. Enter the name of the new Queue in the Queue name

  4. Confirm the popup

Activation of Glue Queue

After creation, the object is in the saved state. For activation, all mandatory inputs need to be filled in.

  • Glue Table structure

    • Queue structure based on Glue Table

    • provided with F4 help

Glue Queue is not supported with meaningful fields setting in the GLUE table.

  • DDIC structure

    • Queue structure based on DDIC structure

    • provided with F4 help

Queue Subscribers

Queue subscriber is active Queue Fetcher pointing on existing Queue. The queue can have an unlimited number of subscribers and each one can push data into different Consumers.

With this approach, it's possible to replicate the same data into multiple destinations.

 

Active Queue subscribers are visible on the main Queue object screen

Queue content preview is available after clicking on Show content in the application toolbar.

Cleanup

The queue is being cleared once all data were successfully transferred to target storage (in case of multiple subscribers, every subscriber must transfer all data from Queue) and at the same time, there are no filling Extraction processes for queue running.