Daniel,
Thanks for the guidance about logging. I haven't done packet captures yet
but this is what I'm seeing logged around the time of the error condition:
11/03/2020 21:51:34 : epoch 5e6994c3 : nfs-server-hostname :
ganesha.nfsd-168948[svc_18] rpc :TIRPC :F_DBG :svc_dg_reply:
0x7f35640008c0 fd 13 sendmsg failed (will set dead)
11/03/2020 21:51:34 : epoch 5e6994c3 : nfs-server-hostname :
ganesha.nfsd-168948[svc_18] complete_request :DISP :DEBUG :NFS
DISPATCHER: FAILURE: Error while calling svc_sendreply on a new request.
rpcxid=3984287200 socket=13 function:nfs3_read
client:::ffff:10.1.2.3 program:100003 nfs version:3 proc:6 errno: 11
and from the client's perspective nothing can be done with the nfs mount
until the nfs-ganesha server is restarted.
Do you have any suggestions for a recommended tcpdump command line to
capture all useful traffic?
Thanks,
Todd