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Hi,
It's hard to say without additional information.
- What the error message you have in app when trying to connect? Is it timeout or other type of error?
- If application is not closing DB connections and initiating new it could be that you reached max connections limit
- You need to check if anything suspicious in the DB logs or monitoring metrics
- Check if you have latest minor version installed
- Turn on Performance insights and check if anything suspicious there
- Turn on GuardDuty for DB
It must give you a starting point for troubleshooting, if not helped feel free to provide more details.
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thank you for providing some insight, I will check on last 5th & 6th point GuardDuty for DB & Performance insights for suspicious. But to answer your question,
point#1 => unable to accquire db connection (attached screenshot as well.) point#2 => I saw the connections as well it was not going beyond 50, so I don't think its issue with connection limits. point#3 => checked db monitoring as well, I saw there EBSByteBalance% & EBSIOBalance% showing almost 99%+. point#4 => recently launched db, so nothing upgraded till now. If you need more details then please let me know and help me.
Could you please show the settings of Security Group(s) attached to the RDS DB?
Hi Sirant, Sorry for late response, following are my observations -
my security group allows all traffic to the vpc cidr address i.e (10.0.0.0/16) and application is deployed in the same vpc.