001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019package org.apache.hadoop.hbase.master.procedure;
020
021import org.apache.yetus.audience.InterfaceAudience;
022
023@InterfaceAudience.Private
024public final class MasterProcedureConstants {
025  private MasterProcedureConstants() {}
026
027  /** Number of threads used by the procedure executor */
028  public static final String MASTER_PROCEDURE_THREADS = "hbase.master.procedure.threads";
029  public static final int DEFAULT_MIN_MASTER_PROCEDURE_THREADS = 16;
030
031  /** Number of threads used by the procedure executor for urgent proceudres
032   *  For now, only meta table procedure is urgent
033   */
034  public static final String MASTER_URGENT_PROCEDURE_THREADS =
035      "hbase.master.urgent.procedure.threads";
036  public static final int DEFAULT_MASTER_URGENT_PROCEDURE_THREADS = 1;
037
038  /**
039   * Procedure replay sanity check. In case a WAL is missing or unreadable we
040   * may lose information about pending/running procedures.
041   * Set this to true in case you want the Master failing on load if a corrupted
042   * procedure is encountred.
043   * (Default is off, because we prefer having the Master up and running and
044   * fix the "in transition" state "by hand")
045   */
046  public static final String EXECUTOR_ABORT_ON_CORRUPTION = "hbase.procedure.abort.on.corruption";
047  public static final boolean DEFAULT_EXECUTOR_ABORT_ON_CORRUPTION = false;
048}