DFS_NAMENODE_SECONDARY_HTTPS_PORT_KEY,
DFS_SECONDARY_NAMENODE_KEYTAB_FILE_KEY,
DFS_NAMENODE_BACKUP_ADDRESS_KEY,
DFS_NAMENODE_BACKUP_HTTP_ADDRESS_KEY,
DFS_NAMENODE_BACKUP_SERVICE_RPC_ADDRESS_KEY,
<BUG>DFS_HA_FENCE_METHODS_KEY

};</BUG>
public long getProtocolVersion(String protocol,
long clientVersion) throws IOException {

DFS_NAMENODE_SECONDARY_HTTPS_PORT_KEY,
DFS_SECONDARY_NAMENODE_KEYTAB_FILE_KEY,
DFS_NAMENODE_BACKUP_ADDRESS_KEY,
DFS_NAMENODE_BACKUP_HTTP_ADDRESS_KEY,
DFS_NAMENODE_BACKUP_SERVICE_RPC_ADDRESS_KEY,
DFS_HA_FENCE_METHODS_KEY,
DFS_NAMENODE_USER_NAME_KEY
};
public long getProtocolVersion(String protocol,
long clientVersion) throws IOException {
