コード例 #1
0
ファイル: AdminService.java プロジェクト: imace/hops
 /**
  * Check that a request to change this node's HA state is valid. In particular, verifies that, if
  * auto failover is enabled, non-forced requests from the HAAdmin CLI are rejected, and vice
  * versa.
  *
  * @param req the request to check
  * @throws AccessControlException if the request is disallowed
  */
 private void checkHaStateChange(StateChangeRequestInfo req) throws AccessControlException {
   switch (req.getSource()) {
     case REQUEST_BY_USER:
       if (autoFailoverEnabled) {
         throw new AccessControlException(
             "Manual failover for this ResourceManager is disallowed, "
                 + "because automatic failover is enabled.");
       }
       break;
     case REQUEST_BY_USER_FORCED:
       if (autoFailoverEnabled) {
         LOG.warn(
             "Allowing manual failover from "
                 + org.apache.hadoop.ipc.Server.getRemoteAddress()
                 + " even though automatic failover is enabled, because the user "
                 + "specified the force flag");
       }
       break;
     case REQUEST_BY_ZKFC:
       if (!autoFailoverEnabled) {
         throw new AccessControlException(
             "Request from ZK failover controller at "
                 + org.apache.hadoop.ipc.Server.getRemoteAddress()
                 + " denied "
                 + "since automatic failover is not enabled");
       }
       break;
   }
 }
コード例 #2
0
 private static String getClientMachine() {
   String clientMachine = NamenodeWebHdfsMethods.getRemoteAddress();
   if (clientMachine == null) { // not a web client
     clientMachine = Server.getRemoteAddress();
   }
   if (clientMachine == null) { // not a RPC client
     clientMachine = "";
   }
   return clientMachine;
 }