The article mentioned NFS metrics, a hot button issue of mine. Having worked on systems with intermittent bad nfs performance, the client side logging for NFS

The article mentioned NFS metrics, a hot button issue of mine. Having worked on systems with intermittent bad nfs performance, the client side logging for NFS in Linux seems very poor since it’s handled in the kernel, client side reboots clear inode caches, and it’s not hard to wedge up clients with a recursive find (or worse recursive grep) commands when directories have tens of thousands of log files or hundreds of GB of files. The raw NFS rpc metrics are tricky to interpret but I am not at all surprised you see huge spikes. If you find a way to correlate those NFS metrics with what’s happening with the actual issuing commands or processes, you’re doing better than I and let me know!!