Hi there, This might be long to explain. We have a single mongodb instance that we use for production. but last night during off hours around 2 dec 11:09 pm the process stopped itself. I’m able to confirm this with my Grafana dashboard as around 2.3 GB of RAM was released. Now this continued till 3 dec 5:30 am next morning and it came back up again. Now this is confusing because exactly at that time we run a CRON job to create the backup of this DB. and as I can see that the process ran successfully and i have the backup file in my storage.
Now I’m unable to track what could be the reason behind it. as I see no OOM messages in my logs. So i was wondering if you have tracked any such thing before? or any way I can track this issue down?
So far I have checked the messages log in EC2 instance and the mongodb logs itself. The instance has 8GB of RAM and normally its overall consumption is 3 GB of RAM on average daily.
Let me know if you need anymore details. I want to go down to the bottom of this issue. I dont want this issue to come back in our working hours.