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DMA Failover

Solved1.74K views7th June 2021corrupt database Failover resilience
3
Benjamin Cook 4th June 2021 0 Comments

Hello,

I've read that when DMA failover is configured, the passive DMA is continuously updated. Does this happen at a database or application level?

I want to understand if my Cassandra database for my primary DMA becomes corrupted, will the passive DMA also become corrupted?

Regards

Benjamin Cook Selected answer as best 7th June 2021

2 Answers

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Jeroen Geldhof [SLC] [DevOps Enabler]5.07K Posted 4th June 2021 0 Comments

Files are being synced from main to backup DMA on DataMiner level.

For the database a Cassandra cluster is set up and Cassandra itself is responsible for keeping the data in sync. Using 'nodetool status' the details of that Cassandra cluster can be looked at, but also in the Failover status in Cube you'll see if the Cassandra nodes are up or not.

Jeroen Geldhof [SLC] [DevOps Enabler] Edited answer 4th June 2021
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