org.apache.hudi.org.apache.hadoop.hbase.client.ConnectionRegistry 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
* distributed under the License is distributed on an "AS IS" BASIS,
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* See the License for the specific language governing permissions and
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*/
package org.apache.hadoop.hbase.client;
import java.io.Closeable;
import java.util.concurrent.CompletableFuture;
import org.apache.hadoop.hbase.RegionLocations;
import org.apache.hadoop.hbase.ServerName;
import org.apache.yetus.audience.InterfaceAudience;
/**
* Registry for meta information needed for connection setup to a HBase cluster. Implementations
* hold cluster information such as this cluster's id, location of hbase:meta, etc..
* Internal use only.
*/
@InterfaceAudience.Private
interface ConnectionRegistry extends Closeable {
/**
* Get the location of meta region(s).
*/
CompletableFuture getMetaRegionLocations();
/**
* Should only be called once.
*
* The upper layer should store this value somewhere as it will not be change any more.
*/
CompletableFuture getClusterId();
/**
* Get the address of active HMaster.
*/
CompletableFuture getActiveMaster();
/**
* Closes this instance and releases any system resources associated with it
*/
@Override
void close();
}