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I am unable to launch an existing snapshot(300GB, having around 1000 schemas) into an MySql MultiAZ Cluster v8.0.36.

Please find stats for the same Image:

SingleAZ (1 node) 8GB Launching Successfully MultiAZ (2 nodes) 8GB Launching Successfully Cluster (3 nodes) 8GB Unable to launch Cluster (3 nodes) 16GB Unable to launch Cluster (3 nodes) 32GB Launching Successfully. Cluster (3 nodes) 32GB Unable to launch on upgrading to v8.0.39 Cluster (3 nodes) 8GB Unable to launch if RAM is lowered back to 8GB]

Further, AWS support is not able to give any useful insights since long.

We wanted to utilize the Master & ReaderEndpoints of a MySql Cluster to optimize the frequent reads. However, this often fails if going in the Cluster (3) nodes and takes much more time as compared to 1/2 nodes.

  1. Is there some known issue with MySql Cluster on AWS RDS?
  2. How can I debug more.

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