Examples of org.nasutekds.server.replication.protocol.AckMsg

Package org.nasutekds.server.replication.protocol

Examples of org.nasutekds.server.replication.protocol.AckMsg

org.nasutekds.server.replication.protocol.AckMsg
AckMsg messages are used for acknowledging an update that has been sent requesting an ack: update sent in Assured Mode, either safe data or safe read sub mode. The change number refers to the update change number that was requested to be acknowledged. If some errors occurred during attempt to acknowledge the update in the path to final servers, errors are marked with the following fields: - hasTimeout: Some servers went in timeout when the matching update was sent. - hasWrongStatus: Some servers were in a status where we cannot ask for an ack when the matching update was sent. - hasReplayError: Some servers made an error replaying the sent matching update. - failedServers: The list of server ids that had errors for the sent matching update. Each server id of the list had one of the 3 possible errors (timeout/wrong status /replay error) AckMsg messages are sent all along the reverse path of the path followed an update message.

        addMsg.setAssuredMode(assuredMode);
        addMsg.setSafeDataLevel(safeDataLevel);
        session.publish(addMsg);


        // Read and return matching ack
        AckMsg ackMsg = (AckMsg)session.receive();
        return ackMsg;


      } catch(SocketTimeoutException e)
      {
        throw e;

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        // Sleep before sending back the ack
        sleep(NO_TIMEOUT_RS_SLEEP_TIME);


        // Send the ack without errors
        AckMsg ackMsg = new AckMsg(updateMsg.getChangeNumber());
        session.publish(ackMsg);


        scenarioExecuted = true;


      } catch (Exception e)

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        // - replay error
        // - server 10 error, server 20 error
        List<Integer> serversInError = new ArrayList<Integer>();
        serversInError.add(10);
        serversInError.add(20);
        AckMsg ackMsg = new AckMsg(updateMsg.getChangeNumber(), false, false, true, serversInError);
        session.publish(ackMsg);


        // Read second update
        updateMsg = (UpdateMsg) session.receive();
        checkUpdateAssuredParameters(updateMsg);


        // Sleep before sending back the ack
        sleep(NO_TIMEOUT_RS_SLEEP_TIME);


        // Send an ack with errors:
        // - timeout error
        // - wrong status error
        // - replay error
        // - server 10 error, server 20 error, server 30 error
        serversInError = new ArrayList<Integer>();
        serversInError.add(10);
        serversInError.add(20);
        serversInError.add(30);
        ackMsg = new AckMsg(updateMsg.getChangeNumber(), true, true, true, serversInError);
        session.publish(ackMsg);


        // Read third update
        updateMsg = (UpdateMsg) session.receive();
        checkUpdateAssuredParameters(updateMsg);

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        // Send an ack with errors:
        // - timeout error
        // - server 10 error
        List<Integer> serversInError = new ArrayList<Integer>();
        serversInError.add(10);
        AckMsg ackMsg = new AckMsg(updateMsg.getChangeNumber(), true, false, false, serversInError);
        session.publish(ackMsg);


        // Read second update
        updateMsg = (UpdateMsg) session.receive();
        checkUpdateAssuredParameters(updateMsg);


        // Sleep before sending back the ack
        sleep(NO_TIMEOUT_RS_SLEEP_TIME);


        // Send an ack with errors:
        // - timeout error
        // - server 10 error, server 20 error
        serversInError = new ArrayList<Integer>();
        serversInError.add(10);
        serversInError.add(20);
        ackMsg = new AckMsg(updateMsg.getChangeNumber(), true, false, false, serversInError);
        session.publish(ackMsg);


        // Read third update
        updateMsg = (UpdateMsg) session.receive();
        checkUpdateAssuredParameters(updateMsg);

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      /*
       * Send an assured update using configured assured parameters
       */


      long startTime = System.currentTimeMillis();
      AckMsg ackMsg = null;
      boolean timeout = false;
      try
      {
        ackMsg = fakeRs1.sendNewFakeUpdate();
      } catch (SocketTimeoutException e)
      {
        debugInfo("testSafeDataFromRS: timeout waiting for update ack");
        timeout = true;
      }
      long sendUpdateTime = System.currentTimeMillis() - startTime;
      debugInfo("testSafeDataFromRS: send update call time: " + sendUpdateTime);


      /*
       * Now check timeout or not according to test configuration parameters
       */
      if ( (sdLevel == 1) || (fakeRsGid != DEFAULT_GID) ||
        (fakeRsGenId != DEFAULT_GENID) || (!sendInAssured) )
      {
        // Should have timed out (no ack)
        assertTrue(timeout);
        assertNull(ackMsg);
      } else
      {
        // Ack should have been received
        assertFalse(timeout);
        assertTrue(sendUpdateTime < MAX_SEND_UPDATE_TIME);
        assertNotNull(ackMsg);
        assertFalse(ackMsg.hasTimeout());
        assertFalse(ackMsg.hasReplayError());
        assertFalse(ackMsg.hasWrongStatus());
        assertEquals(ackMsg.getFailedServers().size(), 0);
      }


   } finally
    {
      endTest();

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        delMsg.setAssuredMode(assuredMode);
        delMsg.setSafeDataLevel(safeDataLevel);
        session.publish(delMsg);


        // Read and return matching ack
        AckMsg ackMsg = null;
        ReplicationMsg replMsg = session.receive();
        if (replMsg instanceof ErrorMsg)
        {
        // Support for connection done with bad gen id : we receive an error
          // message that we must throw away before reading our ack.

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            {
              case REPLY_OK_RS_SCENARIO:
                if (updateMsg.isAssured())
                {
                  // Send the ack without errors
                  AckMsg ackMsg = new AckMsg(updateMsg.getChangeNumber());
                  session.publish(ackMsg);
                  ackReplied = true;
                }
                break;
              case TIMEOUT_RS_SCENARIO:
                // Let timeout occur
                break;
              case DS_TIMEOUT_RS_SCENARIO_SAFE_READ:
                if (updateMsg.isAssured())
                {
                  // Emulate RS waiting for virtual DS ack
                  sleep(MAX_SEND_UPDATE_TIME);
                  // Send the ack with timeout error from a virtual DS with id (ours + 10)
                  AckMsg ackMsg = new AckMsg(updateMsg.getChangeNumber());
                  ackMsg.setHasTimeout(true);
                  List<Integer> failedServers = new ArrayList<Integer>();
                  failedServers.add(serverId + 10);
                  ackMsg.setFailedServers(failedServers);
                  session.publish(ackMsg);
                  ackReplied = true;
                }
                break;
              case DS_WRONG_STATUS_RS_SCENARIO_SAFE_READ:
                if (updateMsg.isAssured())
                {
                  // Send the ack with wrong status error from a virtual DS with id (ours + 10)
                  AckMsg ackMsg = new AckMsg(updateMsg.getChangeNumber());
                  ackMsg.setHasWrongStatus(true);
                  List<Integer> failedServers = new ArrayList<Integer>();
                  failedServers.add((serverId + 10));
                  ackMsg.setFailedServers(failedServers);
                  session.publish(ackMsg);
                  ackReplied = true;
                }
                break;
              case DS_REPLAY_ERROR_RS_SCENARIO_SAFE_READ:
                if (updateMsg.isAssured())
                {
                  // Send the ack with replay error from a virtual DS with id (ours + 10)
                  AckMsg ackMsg = new AckMsg(updateMsg.getChangeNumber());
                  ackMsg.setHasReplayError(true);
                  List<Integer> failedServers = new ArrayList<Integer>();
                  failedServers.add((serverId + 10));
                  ackMsg.setFailedServers(failedServers);
                  session.publish(ackMsg);
                  ackReplied = true;
                }
                break;
              default:

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      String entryStr = "dn: ou=assured-sr-reply-entry," + SAFE_READ_DN + "\n" +
        "objectClass: top\n" +
        "objectClass: organizationalUnit\n";
      Entry entry = TestCaseUtils.entryFromLdifString(entryStr);
      String parentUid = getEntryUUID(DN.decode(SAFE_READ_DN));
      AckMsg ackMsg = null;


      try {
        ackMsg = replicationServer.sendAssuredAddMsg(entry, parentUid);


         if (rsGroupId == (byte)2)
           fail("Should only go here for RS with same group id as DS");


        // Ack received, replay has occurred
        assertNotNull(DirectoryServer.getEntry(entry.getDN()));


        // Check that DS replied an ack without errors anyway
        assertFalse(ackMsg.hasTimeout());
        assertFalse(ackMsg.hasReplayError());
        assertFalse(ackMsg.hasWrongStatus());
        assertEquals(ackMsg.getFailedServers().size(), 0);


        // Check for monitoring data
        DN baseDn = DN.decode(SAFE_READ_DN);
        assertEquals(getMonitorAttrValue(baseDn, "assured-sr-sent-updates"), 0);
        assertEquals(getMonitorAttrValue(baseDn, "assured-sr-acknowledged-updates"), 0);

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        "objectClass: top\n" +
        "objectClass: organizationalUnit\n";
      Entry entry = TestCaseUtils.entryFromLdifString(entryStr);
      String parentUid = getEntryUUID(DN.decode(SAFE_DATA_DN));


      AckMsg ackMsg = null;
      try
      {
        ackMsg = replicationServer.sendAssuredAddMsg(entry, parentUid);
      } catch (SocketTimeoutException e)
      {

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          }
          // Remove the object from the map as no more needed
          waitingAcks.remove(cn);
          // Create the timeout ack and send him to the server the assured
          // update message came from
          AckMsg finalAck = expectedAcksInfo.createAck(true);
          ServerHandler origServer = expectedAcksInfo.getRequesterServer();
          if (debugEnabled())
            TRACER.debugInfo(
              "In RS " + Integer.toString(replicationServer.getServerId()) +
              " for " + baseDn +

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org.nasutekds.server.replication.common.ChangeNumber

org.nasutekds.server.replication.plugin.AssuredReplicationPluginTest

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org.nasutekds.server.replication.server.AssuredReplicationServerTest

org.nasutekds.server.replication.server.AssuredReplicationServerTest$FakeReplicationServer

org.nasutekds.server.replication.server.ReplicationServerDomain

org.nasutekds.server.replication.server.ReplicationServerDomain$AssuredTimeoutTask

org.nasutekds.server.replication.server.SafeDataExpectedAcksInfo

org.nasutekds.server.replication.server.SafeReadExpectedAcksInfo

org.nasutekds.server.replication.service.ReplicationDomain

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