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Mention ping message in JMS docs

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ssadedin committed Oct 1, 2018
1 parent 320fc5d commit 178a120ad7a9d559363adcf2008f27116fba146d
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@@ -88,3 +88,13 @@ Note that the message payload is still expected to be JSON and is pre-parsed int
a Java object structure (Map, List, etc). The transform needs to produce a
Map / List structure identical to the JSON format of the standard message,
however it is defined using Groovy code.
## Monitoring Status - Ping Message
The Bpipe agent recognises a special message where the body is composed only of the word `ping`. When this message
is received, it will respond by sending a message to the queue specified in the `JMSReplyTo` or `reply-to` header.
This message will have a JSON body containing information about the agent, and receiving it can be used to confirm
that the agent is alive and processing messages.

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