![]() Problem 1: As mentioned above, the most obvious appearance of these problem is database's CPU stuck at 100% for a vary long time, then suddenly back to normal without intervention, as we can see from the two screenshot below(the second image is a screenshot from the database's Performance Insight panel): ![]() Thus I post this problem in the forum, any advice is very much welcome. We are using AWS's business support plan, in the past few month, we worked closely with the support team to diagnose the issue, but still haven't found what caused the problem. These situation happened 3 times in the past 4 months. ![]() ![]() One of our Aurora PostgreSQL database's(48 cores) CPU usage stuck at 100% for nearly 8 hours.
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