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1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  package org.apache.hadoop.hbase.master.procedure;
20  
21  import org.apache.hadoop.hbase.classification.InterfaceAudience;
22  
23  @InterfaceAudience.Private
24  public final class MasterProcedureConstants {
25    private MasterProcedureConstants() {}
26  
27    /** Used to construct the name of the log directory for master procedures */
28    public static final String MASTER_PROCEDURE_LOGDIR = "MasterProcWALs";
29  
30    /** Number of threads used by the procedure executor */
31    public static final String MASTER_PROCEDURE_THREADS = "hbase.master.procedure.threads";
32    public static final int DEFAULT_MIN_MASTER_PROCEDURE_THREADS = 4;
33  
34    /**
35     * Procedure replay sanity check. In case a WAL is missing or unreadable we
36     * may lose information about pending/running procedures.
37     * Set this to true in case you want the Master failing on load if a corrupted
38     * procedure is encountred.
39     * (Default is off, because we prefer having the Master up and running and
40     * fix the "in transition" state "by hand")
41     */
42    public static final String EXECUTOR_ABORT_ON_CORRUPTION = "hbase.procedure.abort.on.corruption";
43    public static final boolean DEFAULT_EXECUTOR_ABORT_ON_CORRUPTION = false;
44  }