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.

   *           e
   */
  public void connect(final boolean reload) throws IOException {
    if (server == null || reload) {
      List<ServerName> sns = fserverTracker.getOnlineServers();
      ServerName sn = sns.get(rand.nextInt(sns.size()));
      this.server = connection.getClient(sn.getHostname(), sn.getPort());
    }
  }

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      final EntityGroupTransaction egTransition,
      final EntityGroupInfo entityGroupInfo, int expectedVersion)
      throws KeeperException {
    EventType et = egTransition.getEventType();
    // Get ServerName. Could not be null.
    ServerName sn = egTransition.getServerName();
    String encodedEntityGroupName = entityGroupInfo.getEncodedName();
    LOG.info("Processing entityGroup "
        + entityGroupInfo.getEntityGroupNameAsString() + " in state " + et);


    if (entityGroupStates.isEntityGroupInTransition(encodedEntityGroupName)) {

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      int expectedVersion) {
    if (egTransition == null) {
      LOG.warn("Unexpected NULL input " + egTransition);
      return;
    }
    final ServerName sn = egTransition.getServerName();
    // Check if this is a special HBCK transition
    if (sn.equals(HBCK_CODE_SERVERNAME)) {
      handleHBCK(egTransition);
      return;
    }
    final long createTime = egTransition.getCreateTime();
    final byte[] entityGroupName = egTransition.getEntityGroupName();

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            } else {
              LOG.debug("The znode of entityGroup "
                  + entityGroupInfo.getEntityGroupNameAsString()
                  + " has been deleted.");
              if (egState.isOpened()) {
                ServerName serverName = egState.getServerName();
                entityGroupOnline(entityGroupInfo, serverName);
                LOG.info("The master has opened the entityGroup "
                    + entityGroupInfo.getEntityGroupNameAsString()
                    + " that was online on " + serverName);
                if (getZKTable().isDisablingOrDisabledTable(

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   */
  private void unassign(final EntityGroupInfo entityGroup,
      final EntityGroupState state, final int versionOfClosingNode,
      final ServerName dest, final boolean transitionInZK) {
    // Send CLOSE RPC
    ServerName server = state.getServerName();
    // ClosedEntityGrouphandler can remove the server from this.entityGroups
    if (!serverManager.isServerOnline(server)) {
      // delete the node. if no node exists need not bother.
      deleteClosingOrClosedNode(entityGroup);
      entityGroupOffline(entityGroup);

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        Pair<EntityGroupInfo, ServerName> entityGroup = EntityGroupInfo
            .getEntityGroupInfoAndServerName(result);
        if (entityGroup == null)
          continue;
        EntityGroupInfo entityGroupInfo = entityGroup.getFirst();
        ServerName entityGroupLocation = entityGroup.getSecond();
        if (entityGroupInfo == null)
          continue;
        entityGroupStates.createEntityGroupState(entityGroupInfo);
        String tableName = entityGroupInfo.getTableNameAsString();
        if (entityGroupLocation == null) {

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      Map<ServerName, List<EntityGroupInfo>> deadServers, List<String> nodes)
      throws IOException, KeeperException {
    if (deadServers != null) {
      for (Map.Entry<ServerName, List<EntityGroupInfo>> server : deadServers
          .entrySet()) {
        ServerName serverName = server.getKey();
        if (!serverManager.isServerDead(serverName)) {
          serverManager.expireServer(serverName); // Let SSH do entityGroup
                                                  // re-assign
        }
      }

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    } catch (DeserializationException e) {
      server.abort("Exception parsing unassigned node for entityGroup="
          + egInfo.getEncodedName(), e);
    }


    ServerName addressFromZK = rt != null ? rt.getServerName() : null;
    if (addressFromZK != null) {
      // if we get something from ZK, we will use the data
      boolean matchZK = (addressFromZK != null && addressFromZK
          .equals(serverName));
      LOG.debug("based on ZK, current entityGroup="
          + egInfo.getEntityGroupNameAsString() + " is on server="
          + addressFromZK + " server being checked=: " + serverName);
      return matchZK;
    }


    ServerName addressFromAM = entityGroupStates
        .getFServerOfEntityGroup(egInfo);
    boolean matchAM = (addressFromAM != null && addressFromAM
        .equals(serverName));
    LOG.debug("based on AM, current entityGroup="
        + egInfo.getEntityGroupNameAsString() + " is on server="
        + (addressFromAM != null ? addressFromAM : "null")
        + " server being checked: " + serverName);

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    // Clean out any existing assignment plans for this server
    synchronized (this.entityGroupPlans) {
      for (Iterator<Map.Entry<String, EntityGroupPlan>> i = this.entityGroupPlans
          .entrySet().iterator(); i.hasNext();) {
        Map.Entry<String, EntityGroupPlan> e = i.next();
        ServerName otherSn = e.getValue().getDestination();
        // The name will be null if the entityGroup is planned for a random
        // assign.
        if (otherSn != null && otherSn.equals(sn)) {
          // Use iterator's remove else we'll get CME
          i.remove();
        }
      }
    }

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        .newBuilder();
    builder.setEntityGroup(buildEntityGroupSpecifier(
        EntityGroupSpecifierType.ENCODED_ENTITYGROUP_NAME,
        encodedEntityGroupName));
    if (destServerName != null) {
      builder.setDestServerName(ProtobufUtil.toServerName(new ServerName(Bytes
          .toString(destServerName))));
    }
    return builder.build();
  }

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com.alibaba.wasp.master.ActiveMasterManager

com.alibaba.wasp.master.AssignmentManager

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