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Synchronization after link failure in pair 1+1

Solved871 views8th February 20231+1 failure synchronization
1
Piotr Borowski [DevOps Member]550 23rd December 2022 0 Comments

when we have a geolocation and one agent from the 1+1 pair is in the first and the other in the second location, is it possible that after a link failure between the locations, two agents from the 1+1 pair become active? If so, then when changing the configuration of elements on these agents or after restoring the network connection - will proper synchronization take place? which agent will become offline?

Piotr Borowski [DevOps Member] Selected answer as best 8th February 2023

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Jan Vanhove [SLC] [DevOps Member]1.16K Posted 27th January 2023 0 Comments

Hi Piotr,

In order to prevent 2 DMAs to become online it is advised to configure the heartbeats as described here (note the inverted heartbeats):
https://docs.dataminer.services/user-guide/Advanced_Functionality/Failover/Configuring_Failover/Advanced_Failover_options.html#heartbeats

If there would be a problem with the heartbeat config and that detection mechanism, the normal synchronization will kick in and the last-modified config will be applied.

Regards

Piotr Borowski [DevOps Member] Selected answer as best 8th February 2023
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