High or fluctuating latency after turning on NetApp ONTAP File System Analytics
Applies to
- ONTAP 9
- File System Analytics (FSA)
Issue
- Applications report hung threads for processing IOs along with Host OS reporting nfs server not responding events :
Mar 24 01:33:32 xxxxxxfn kernel: nfs: server xxx.xxxxxxx.com not responding, still trying
Mar 24 01:59:11 xxxxxxfn kernel: nfs: server xxx.xxxxxxx.com not responding, still trying
Mar 24 02:04:55 xxxxxxfn kernel: nfs: server xxx.xxxxxxx.com not responding, still trying
Mar 24 02:42:55 xxxxxxfn kernel: nfs: server xxx.xxxxxxx.com not responding, still trying
Mar 24 02:51:49 xxxxxxfn kernel: nfs: server xxx.xxxxxxx.com not responding, still trying
Mar 24 05:17:47 xxxxxxfn kernel: nfs: server xxx.xxxxxxx.com OK
- After turning on NetApp ONTAP File System Analytics (FSA) there is a noticeable increase in latency
