Very low Active Docs Rsident

On my 4 node cluster we have 23GB of memory assigned to each node. I have 145M docs. I see that ‘Active Docs Resident’ dropped to 0.352% and miss cache ratio went up to 12%. Docs Data Size is 378GB. 73GB of memory is used.

I think it is strange that only 50k docs are only in RAM, considering our resources.

I think I found the solution…
I realised that I had ‘Memory used’ more less equal to high water mark. I even had OOM errors. I restarted XDCR, memory used dropped by 20GB and active docs resident started to rise.
However I don’t know what had happened to XDCR process. I use CB 4.1. This week I will upgrade to 4.5.