ase.hbase-protocol-shaded.2.6.0.source-code.ZooKeeper.proto Maven / Gradle / Ivy

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Shaded protobuf protocol classes used by HBase internally.
There is a newer version: 3.0.0-beta-1
/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
syntax = "proto2";

// ZNode data in hbase are serialized protobufs with a four byte
// 'magic' 'PBUF' prefix.
package hbase.pb;

option java_package = "org.apache.hadoop.hbase.shaded.protobuf.generated";
option java_outer_classname = "ZooKeeperProtos";
option java_generic_services = true;
option java_generate_equals_and_hash = true;
option optimize_for = SPEED;

import "HBase.proto";
import "ClusterStatus.proto";

/**
 * Content of the meta-region-server znode.
 */
message MetaRegionServer {
  // The ServerName hosting the meta region currently, or destination server,
  // if meta region is in transition.
  required ServerName server = 1;
  // The major version of the rpc the server speaks.  This is used so that
  // clients connecting to the cluster can have prior knowledge of what version
  // to send to a RegionServer.  AsyncHBase will use this to detect versions.
  optional uint32 rpc_version = 2;

  // State of the region transition. OPEN means fully operational 'hbase:meta'
  optional RegionState.State state = 3;
}

/**
 * Content of the master znode.
 */
message Master {
  // The ServerName of the current Master
  required ServerName master = 1;
  // Major RPC version so that clients can know what version the master can accept.
  optional uint32 rpc_version = 2;
  optional uint32 info_port = 3;
}

/**
 * Content of the '/hbase/running', cluster state, znode.
 */
message ClusterUp {
  // If this znode is present, cluster is up.  Currently
  // the data is cluster start_date.
  required string start_date = 1;
}

/**
 * WAL SplitLog directory znodes have this for content.  Used doing distributed
 * WAL splitting.  Holds current state and name of server that originated split.
 */
message SplitLogTask {
  enum State {
    UNASSIGNED = 0;
    OWNED = 1;
    RESIGNED = 2;
    DONE = 3;
    ERR = 4;
  }
  required State state = 1;
  required ServerName server_name = 2;
  // optional RecoveryMode DEPRECATED_mode = 3 [default = UNKNOWN];
}

/**
 * The znode that holds state of table.
 * Deprected, table state is stored in hbase:meta since 2.0.0.
 */
message DeprecatedTableState {
  // Table's current state
  enum State {
    ENABLED = 0;
    DISABLED = 1;
    DISABLING = 2;
    ENABLING = 3;
  }
  // This is the table's state.  If no znode for a table,
  // its state is presumed enabled.  See o.a.h.h.zookeeper.ZKTable class
  // for more.
  required State state = 1 [default = ENABLED];
}

/**
 * State of the switch.
 */
message SwitchState {
  optional bool enabled = 1;
}