Examples of com.alibaba.wasp.ServerName

com.alibaba.wasp.ServerName
Instance of an Wasp ServerName. A server name is used uniquely identifying a server instance and is made of the combination of hostname, port, and startcode. The startcode distingushes restarted servers on same hostname and port (startcode is usually timestamp of server startup). The {@link #toString()} format of ServerName is safe to use in the filesystem andas znode name up in ZooKeeper. Its format is: <hostname> ' {@link #SERVERNAME_SEPARATOR}' <port> ' {@link #SERVERNAME_SEPARATOR}' <startcode> . For example, if hostname is example.org, port is 1234, and the startcode for the fserver is 1212121212, then the {@link #toString()} would beexample.org,1234,1212121212.
You can obtain a versioned serialized form of this class by calling {@link #getVersionedBytes()}. To deserialize, call {@link #parseVersionedServerName(byte[])}
Immutable.

   * Update a entityGroup state. If it is not splitting, it will be put in
   * transition if not already there.
   */
  public synchronized EntityGroupState updateEntityGroupState(
      final EntityGroupInfo egi, final EntityGroupState.State state, final ServerName serverName) {
    ServerName newServerName = serverName;
    if (serverName != null &&
        (state == EntityGroupState.State.CLOSED || state == EntityGroupState.State.OFFLINE)) {
      LOG.warn("Closed entityGroup " + egi + " still on "
        + serverName + "? Ignored, reset it to null");
      newServerName = null;

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    EntityGroupState oldState = entityGroupStates.get(entityGroupName);
    if (oldState == null) {
      LOG.warn("Online a entityGroup not in EntityGroupStates: " + egi);
    } else {
      EntityGroupState.State state = oldState.getState();
      ServerName sn = oldState.getServerName();
      if (state != EntityGroupState.State.OPEN || sn == null || !sn.equals(serverName)) {
        LOG.debug("Online a entityGroup with current state=" + state
            + ", expected state=OPEN"
          + ", assigned to server: " + sn + " expected " + serverName);
      }
    }
    updateEntityGroupState(egi, EntityGroupState.State.OPEN, serverName);
    entityGroupsInTransition.remove(entityGroupName);


    ServerName oldServerName = entityGroupAssignments.put(egi, serverName);
    if (!serverName.equals(oldServerName)) {
      LOG.info("Onlined entityGroup " + egi + " on " + serverName);
      Set<EntityGroupInfo> entityGroups = serverHoldings.get(serverName);
      if (entityGroups == null) {
        entityGroups = new HashSet<EntityGroupInfo>();

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    EntityGroupState oldState = entityGroupStates.get(entityGroupName);
    if (oldState == null) {
      LOG.warn("Offline a entityGroup not in EntityGroupStates: " + egi);
    } else {
      EntityGroupState.State state = oldState.getState();
      ServerName sn = oldState.getServerName();
      if (state != EntityGroupState.State.OFFLINE || sn != null) {
        LOG.debug("Offline a entityGroup with current state=" + state
            + ", expected state=OFFLINE"
          + ", assigned to server: " + sn + ", expected null");
      }
    }
    updateEntityGroupState(egi, EntityGroupState.State.OFFLINE);
    entityGroupsInTransition.remove(entityGroupName);


    ServerName oldServerName = entityGroupAssignments.remove(egi);
    if (oldServerName != null) {
      LOG.info("Offlined entityGroup " + egi + " from " + oldServerName);
      serverHoldings.get(oldServerName).remove(egi);
    }
  }

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  protected synchronized double getAverageLoad() {
    int numServers = 0, totalLoad = 0;
    for (Map.Entry<ServerName, Set<EntityGroupInfo>> e : serverHoldings
        .entrySet()) {
      Set<EntityGroupInfo> entityGroups = e.getValue();
      ServerName serverName = e.getKey();
      int entityGroupCount = entityGroups.size();
      if (entityGroupCount > 0 || fserverManager.isServerOnline(serverName)) {
        totalLoad += entityGroupCount;
        numServers++;
      }

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    // if actions > 1. will commit by 2pc
    if (updateActions.size() == 1) {
      UpdateAction action = updateActions.get(0);
      EntityGroupInfo entityGroupInfo = action.getEntityGroupLocation()
          .getEntityGroupInfo();
      ServerName serverName = new ServerName(action.getEntityGroupLocation()
          .getHostname(), action.getEntityGroupLocation().getPort(),
          ServerName.NON_STARTCODE);
      try {
        if (workingOnLocalServer(server, serverName)) {
          ClientProtos.UpdateResponse response = server.update(
              entityGroupInfo.getEntityGroupName(), action);
          writeResultProtos.add(response.getResult());
        } else {
          ClientProtocol clientProtocol = connection.getClient(
              serverName.getHostname(), serverName.getPort());
          ClientProtos.UpdateResponse response = clientProtocol.update(null,
              RequestConverter.buildUpdateRequest(action));
          writeResultProtos.add(response.getResult());
        }
      } catch (ServiceException e) {
        if (e.getCause() != null && e.getCause() instanceof IOException) {
          connection.clearCaches(serverName.getHostAndPort());
        }
        throw e;
      } catch (Exception e) {
        if (e instanceof IOException) {
          connection.clearCaches(serverName.getHostAndPort());
        }
        throw new ServiceException(e);
      }
    } else if (updateActions.size() > 1) {
      Map<EntityGroupInfo, List<Action>> actionMap = getActionMap(plan

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    List<ClientProtos.WriteResultProto> writeResultProtos = new ArrayList<ClientProtos.WriteResultProto>();
    List<InsertAction> actions = plan.getActions();
    InsertAction action = actions.get(0);
    EntityGroupInfo entityGroupInfo = action.getEntityGroupLocation()
        .getEntityGroupInfo();
    ServerName serverName = new ServerName(action.getEntityGroupLocation()
        .getHostname(), action.getEntityGroupLocation().getPort(),
        ServerName.NON_STARTCODE);
    // if actions > 1. will commit by 2pc
    if (actions.size() == 1) {
      try {


        if (workingOnLocalServer(server, serverName)) {
          ClientProtos.InsertResponse response = server.insert(
              entityGroupInfo.getEntityGroupName(), action);
          writeResultProtos.add(response.getResult());
        } else {
          ClientProtocol clientProtocol = connection.getClient(
              serverName.getHostname(), serverName.getPort());
          ClientProtos.InsertResponse response = clientProtocol.insert(null,
              RequestConverter.buildInsertRequest(action));
          writeResultProtos.add(response.getResult());
        }
      } catch (ServiceException e) {
        if (e.getCause() != null && e.getCause() instanceof IOException) {
          connection.clearCaches(serverName.getHostAndPort());
        }
        throw e;
      } catch (Exception e) {
        if (e instanceof IOException) {
          connection.clearCaches(serverName.getHostAndPort());
        }
        throw new ServiceException(e);
      }
    } else if (actions.size() > 1) {
      Map<EntityGroupInfo, List<Action>> actionMap = getActionMap(plan

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    List<EntityGroupInfo> entityGroups = new ArrayList<EntityGroupInfo>();
    EntityGroupStates entityGroupStates = this.assignmentManager
        .getEntityGroupStates();
    for (Pair<EntityGroupInfo, ServerName> entityGroupLocation : entityGroupsInMeta) {
      EntityGroupInfo egi = entityGroupLocation.getFirst();
      ServerName sn = entityGroupLocation.getSecond();
      if (!entityGroupStates.isEntityGroupInTransition(egi)
          && !entityGroupStates.isEntityGroupAssigned(egi)) {
        if (this.retainAssignment && sn != null
            && serverManager.isServerOnline(sn)) {
          this.assignmentManager.addPlan(egi.getEncodedName(),

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    // if actions > 1. will commit by 2pc
    if (actions.size() == 1) {
      DeleteAction action = actions.get(0);
      EntityGroupInfo entityGroupInfo = action.getEntityGroupLocation()
          .getEntityGroupInfo();
      ServerName serverName = new ServerName(action.getEntityGroupLocation()
          .getHostname(), action.getEntityGroupLocation().getPort(),
          ServerName.NON_STARTCODE);
      try {
        if (workingOnLocalServer(server, serverName)) {
          ClientProtos.DeleteResponse response = server.delete(
              entityGroupInfo.getEntityGroupName(), action);
          writeResultProtos.add(response.getResult());
        } else {
          ClientProtocol clientProtocol = connection.getClient(
              serverName.getHostname(), serverName.getPort());
          ClientProtos.DeleteResponse response = clientProtocol.delete(null,
              RequestConverter.buildDeleteRequest(action));
          writeResultProtos.add(response.getResult());
        }
      } catch (ServiceException e) {
        if (e.getCause() != null && e.getCause() instanceof IOException) {
          connection.clearCaches(serverName.getHostAndPort());
        }
        throw e;
      } catch (Exception e) {
        if (e instanceof IOException) {
          connection.clearCaches(serverName.getHostAndPort());
        }
        throw new ServiceException(e);
      }
    } else if (actions.size() > 1) {
      Map<EntityGroupInfo, List<Action>> actionMap = getActionMap(plan

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    List<TransactionAction> actions = plan.getActions();
    if (actions.size() == 1) {
      TransactionAction action = actions.get(0);
      EntityGroupInfo entityGroupInfo = action.getEntityGroupLocation()
          .getEntityGroupInfo();
      ServerName serverName = new ServerName(action.getEntityGroupLocation()
          .getHostname(), action.getEntityGroupLocation().getPort(),
          ServerName.NON_STARTCODE);
      try {
        if (workingOnLocalServer(server, serverName)) {
          ClientProtos.TransactionResponse response = server.transaction(
              entityGroupInfo.getEntityGroupName(), action);
          writeResultProtos.add(response.getResult());
        } else {
          ClientProtocol clientProtocol = connection.getClient(
              serverName.getHostname(), serverName.getPort());
          ClientProtos.TransactionResponse response = clientProtocol
              .transaction(null,
                  RequestConverter.buildTransactionRequest(action));
          writeResultProtos.add(response.getResult());
        }
      } catch (ServiceException e) {
        if (e.getCause() != null && e.getCause() instanceof IOException) {
          connection.clearCaches(serverName.getHostAndPort());
        }
        throw e;
      } catch (Exception e) {
        if (e instanceof IOException) {
          connection.clearCaches(serverName.getHostAndPort());
        }
        throw new ServiceException(e);
      }
    } else {
      // TODO

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    NavigableMap<EntityGroupInfo, ServerName> egiHserverMapping = FMetaScanner
        .allTableEntityGroups(server.getConfiguration(), tableName, false);


    List<EntityGroupInfo> reEntityGroups = new ArrayList<EntityGroupInfo>();
    for (EntityGroupInfo egi : entityGroups) {
      ServerName egLocation = egiHserverMapping.get(egi);


      // Skip the offlined split parent EntityGroup
      if (null == egLocation) {
        LOG.info("Skip " + egi);
        continue;

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