Default haproxy config Inter 1s (The “inter” parameter sets the interval between two consecutive health checks to milliseconds.)
Fall 2 (The “fall” parameter states that a server will be considered as dead after consecutive unsuccessful health checks.)
Rise 3 (The “rise” parameter states that a server will be considered as operational after consecutive successful health checks.)
HttpCheck GET /readyz HTTP/1.0
global stats socket /var/lib/haproxy/run/haproxy.sock mode 600 level admin expose-fd listeners defaults maxconn 20000 mode tcp log /var/run/haproxy/haproxy-log.
Default versions Kernel versions 4.18 and above default to nfs 4.2. The client will try in order 4.2 then 4.1 then 4.0.
https://access.redhat.com/articles/6907891
https://access.redhat.com/articles/3626571
Default mount options rw,relatime,vers=4.2,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,local_lock=none,addr=<nfs_server>
Customize mount options https://access.redhat.com/solutions/6065961
apiVersion: v1 kind: PersistentVolume spec: [...] mountOptions: - nfsvers=4.1 [...]You can make a RPC call to the NFS server to get supported versions :
$ rpcinfo -p 192.168.0.10 | grep nfs 100003 3 tcp 2049 nfs 100003 4 tcp 2049 nfsAnd adapt mount options according to your nfs server.
