How should the "priority" of messages be used ?

[IsaacSee]

I noticed a "Priority" column on messages table but it seems that it is not really used. What should be the way to use it in order to process higher priorities first ?

[mookid8000]

It's an undocumented feature that the SQL transport can choose to use 😄

Prioritizing messages is not really supported by any other transports, so the feature has no API in Rebus – but you can see here that the SQL transport does in fact select its next message based on the priority in ascending order.

Only thing you need to do is to set the rbs2-message-priority header to a number when you send the message, e.g. like this:

var headers = new Dictionary<string, string> {
    {"rbs2-message-priority", "100"}
};

await bus.Send(work, headers);

to assign the priority 100 to the message.

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sorry for not replying sooner, btw – I saw your message while I was on the move, and then I completely forgot about it!