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MQSeries.net Forum IndexGeneral DiscussionRabbitmq active/passive HA over WAN

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sivaprasadpadhy
PostPosted: Sun Dec 02, 2018 7:54 am Post subject: Rabbitmq active/passive HA over WAN Reply with quote

Newbie

Joined: 02 Dec 2018
Posts: 1
Hi I'm trying to provide disaster recovery between two data centers for a RabbitMQ. The secondary datacenter is passive until the primary DC goes down.
Federation of queues is inappropriate because it wouldn't move messages until the consumers in the secondary DC go active. That shouldn’t happen unless the primary DC is unavailable at which point those messages are inaccessible. I’ve considered creating an extra queue in the primary DC that would receive a copy of each message and then use Federation or Shovel to copy those messages to the secondary. The issue then becomes removing the duplicate message from the secondary DC when the “original” in the primary DC is processed.
Mirroring the queue to a node in the secondary DC would be work, except that RabbitMQ won’t cluster over a WAN due to latency. Has anyone else faced this scenario?

Any help here is appreciated..

Thanks
Siva Prasad Padhy
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exerk
PostPosted: Sun Dec 02, 2018 8:42 am Post subject: Reply with quote

Jedi Council

Joined: 02 Nov 2006
Posts: 6339
What's the advice given in Rabbit MQ fora, as opposed to IBM MQ fora?

IBM MQ is a different animal to Rabbit MQ.
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It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys.
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gbaddeley
PostPosted: Sun Dec 02, 2018 2:50 pm Post subject: Reply with quote

Jedi Knight

Joined: 25 Mar 2003
Posts: 2538
Location: Melbourne, Australia
In a DR scenario, messaging infrastructure is usually recovered / restored without any additional message moving or forwarding. Queues are handed over to the applications in a clean and empty state. It is the responsibility of applications to determine when and what messages they need to regenerate.
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Glenn
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