| copyright | lastupdated | ||
|---|---|---|---|
|
2017-02-07 |
{:new_window: target="_blank"} {:shortdesc: .shortdesc} {:screen: .screen} {:codeblock: .codeblock} {:pre: .pre}
{: #about}
{{site.data.keyword.messagehub_full}} is a scalable, distributed, high throughput messaging service that enables applications and services to communicate easily and reliably. {:shortdesc}
In {{site.data.keyword.messagehub}}, applications send data by creating a message and sending it to a topic. To receive messages, applications subscribe to a topic and choose to either receive all the topic's messages or to share the messages between them. {{site.data.keyword.messagehub}} hosts and maintains the messages in an ordered sequence. In contrast to traditional messaging systems, {{site.data.keyword.messagehub}} provides topics but not queues. However, {{site.data.keyword.messagehub}} offers ways to share messages between receiving applications, which results in behavior similar to queues.
You can use {{site.data.keyword.messagehub}} to complete the following tasks:
- Wire microservices together.
- Offload work to back-end worker processes.
- Connect stream data to analytics to realize powerful insights.
- Publish event data to multiple applications to react in real time.
- Transfer data into another service. For example, to long-term storage.