It might be, not sure. I assume this is new node? and what are you ingest rate for messages?
It took a minute , I see now. You gave Graylog 4 Gb of heap and it look like its using 7 and perhaps 2 left for the system.
Out of curiosity , if you add let’s say 4 more GB of RAM does it still increase past 7 GB mark?
I noticed a pattern that when I turn off the old mongo cluster (which I combined with the new one), lags begin. If there are less than 3 mongo servers, then it starts to slow down.
Hello. Nothing new. After making graylog with mongo separately. it seems that the RAM has stopped filling up and is kept around 60 ± 10% of 10 GB. So basically I think we won.