Process hung trying to lock a file on Azure NFS file share

Issue

• Process hung awaiting lock on an NFS file

• Process strace shows

  fcntl(4</var/kerberos/krb5kdc/principal.ok>, F_SETLKW, {l_type=F_WRLCK, l_whence=SEEK_SET, l_start=0, l_len=0}