org.apache.hadoop.hbase.client.NonceGenerator Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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*/
package org.apache.hadoop.hbase.client;
import org.apache.yetus.audience.InterfaceAudience;
/**
* NonceGenerator interface. In general, nonce group is an ID (one per client, or region+client, or
* whatever) that could be used to reduce collision potential, or be used by compatible server nonce
* manager to optimize nonce storage and removal. See HBASE-3787.
*/
@InterfaceAudience.Private
public interface NonceGenerator {
static final String CLIENT_NONCES_ENABLED_KEY = "hbase.client.nonces.enabled";
/** Returns the nonce group (client ID) of this client manager. */
long getNonceGroup();
/** Returns New nonce. */
long newNonce();
}