Examples of com.alibaba.wasp.master.FServerManager

com.alibaba.wasp.master.FServerManager
The FServerManager class manages info about fservers.
Maintains lists of online and dead servers. Processes the startups, shutdowns, and deaths of fservers.
Servers are distinguished in two different ways. A given server has a location, specified by hostname and port, and of which there can only be one online at any given time. A server instance is specified by the location (hostname and port) as well as the startcode (timestamp from when the server was started). This is used to differentiate a restarted instance of a given server from the original instance.

    LOG.debug("Deleting table" + tableNameStr + " from fmeta");
    // Delete table from FMETA
    FMetaEditor.dropTable(server.getConfiguration(), tableNameStr);


    // notify server to clean the table's meta cache.
    FServerManager serverManager = ((FMasterServices) server)
        .getFServerManager();
    for (ServerName serverName : serverManager.getOnlineServersList()) {
      serverManager.sendDisableTable(serverName, tableNameStr);
    }


    LOG.debug("Setting table" + tableNameStr + " deleted on ZK");
    // If entry for this table in zk, and up in AssignmentManager, remove it.
    assignmentManager.getZKTable().setDeletedTable(Bytes.toString(tableName));

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        Thread.currentThread().interrupt();
      }
    }


    // notify server to refresh the table's meta cache.
    FServerManager serverManager = ((FMasterServices) server)
        .getFServerManager();
    for (ServerName serverName : serverManager.getOnlineServersList()) {
      serverManager.sendEnableTable(serverName, Bytes.toString(tableName));
    }


    if (done) {
      // Flip the table to enabled.
      this.assignmentManager.getZKTable().setEnabledTable(this.tableNameStr);

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   * @throws java.io.IOException
   */
  private List<EntityGroupInfo> entityGroupsToAssignWithServerName(
      final List<Pair<EntityGroupInfo, ServerName>> entityGroupsInMeta)
      throws IOException {
    FServerManager serverManager = ((FMaster) this.server).getFServerManager();
    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(),
              new EntityGroupPlan(egi, null, sn));
        }
        entityGroups.add(egi);
      } else {

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    }


    // 4. Set table enabled flag up in zk.
    try {
      // notify server to refresh the table's meta cache.
      FServerManager serverManager = ((FMasterServices) server)
          .getFServerManager();
      for (ServerName serverName : serverManager.getOnlineServersList()) {
        serverManager.sendEnableTable(serverName, tableName);
      }
      assignmentManager.getZKTable().setEnabledTable(this.table.getTableName());
    } catch (KeeperException e) {
      throw new IOException("Unable to ensure that the table will be"
          + " enabled because of a ZooKeeper issue", e);

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        break;
      }
    }


    // notify server to clean the table's meta cache.
    FServerManager serverManager = ((FMasterServices) server)
        .getFServerManager();
    for (ServerName serverName : serverManager.getOnlineServersList()) {
      serverManager.sendDisableTable(serverName, Bytes.toString(tableName));
    }
    // Flip the table to disabled if success.
    if (done) {
      this.assignmentManager.getZKTable().setDisabledTable(this.tableNameStr);
    } else {

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Related Classes of com.alibaba.wasp.master.FServerManager

com.alibaba.wasp.fserver.AdminProtocol

com.alibaba.wasp.master.handler.CreateTableHandler

com.alibaba.wasp.master.handler.DeleteTableHandler

com.alibaba.wasp.master.handler.DisableTableHandler

com.alibaba.wasp.master.handler.EnableTableHandler

com.alibaba.wasp.master.handler.ServerShutdownHandler

com.alibaba.wasp.protobuf.generated.FServerAdminProtos.OpenEntityGroupRequest

com.alibaba.wasp.protobuf.generated.FServerAdminProtos.OpenEntityGroupResponse

com.alibaba.wasp.ServerName

org.apache.hadoop.conf.Configuration

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