/**
* 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.
*/
package org.apache.hadoop.hbase.client.backoff;
import org.apache.hadoop.hbase.ServerName;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
/**
* Configurable policy for the amount of time a client should wait for a new request to the
* server when given the server load statistics.
* <p>
* Must have a single-argument constructor that takes a {@link org.apache.hadoop.conf.Configuration}
* </p>
*/
@InterfaceAudience.Public
public interface ClientBackoffPolicy {
public static final String BACKOFF_POLICY_CLASS =
"hbase.client.statistics.backoff-policy";
/**
* @return the number of ms to wait on the client based on the
*/
public long getBackoffTime(ServerName serverName, byte[] region, ServerStatistics stats);
}