HBASE-3522 Unbundle our RPC versioning; rather than a global for all 4 Interfaces -- region, master, region to master, and coprocesssors -- instead version each individually
git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1069552 13f79535-47bb-0310-9956-ffa450edef68
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Michael Stack
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/**
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* Copyright 2010 The Apache Software Foundation
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*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.hbase.ipc;
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import org.apache.hadoop.ipc.VersionedProtocol;
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/**
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* There is one version id for all the RPC interfaces. If any interface
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* is changed, the versionID must be changed here.
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*/
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public interface HBaseRPCProtocolVersion extends VersionedProtocol {
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/**
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* Interface version.
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*
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* HMasterInterface version history:
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* <ul>
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* <li>Version was incremented to 2 when we brought the hadoop RPC local to
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* hbase HADOOP-2495</li>
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* <li>Version was incremented to 3 when we changed the RPC to send codes
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* instead of actual class names (HADOOP-2519).</li>
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* <li>Version 4 when we moved to all byte arrays (HBASE-42).</li>
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* <li>Version 5 HBASE-576.</li>
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* <li>Version 6 modifyTable.</li>
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* </ul>
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* <p>HMasterRegionInterface version history:
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* <ul>
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* <li>Version 2 was when the regionServerStartup was changed to return a
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* MapWritable instead of a HbaseMapWritable as part of HBASE-82 changes.</li>
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* <li>Version 3 was when HMsg was refactored so it could carry optional
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* messages (HBASE-504).</li>
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* <li>HBASE-576 we moved this to 4.</li>
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* </ul>
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* <p>HRegionInterface version history:
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* <ul>
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* <li>Upped to 5 when we added scanner caching</li>
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* <li>HBASE-576, we moved this to 6.</li>
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* </ul>
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* <p>TransactionalRegionInterface version history:
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* <ul>
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* <li>Moved to 2 for hbase-576.</li>
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* </ul>
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* <p>Unified RPC version number history:
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* <ul>
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* <li>Version 10: initial version (had to be > all other RPC versions</li>
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* <li>Version 11: Changed getClosestRowBefore signature.</li>
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* <li>Version 12: HServerLoad extensions (HBASE-1018).</li>
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* <li>Version 13: HBASE-847</li>
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* <li>Version 14: HBASE-900</li>
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* <li>Version 15: HRegionInterface.exists</li>
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* <li>Version 16: Removed HMasterRegionInterface.getRootRegionLocation and
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* HMasterInterface.findRootRegion. We use ZooKeeper to store root region
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* location instead.</li>
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* <li>Version 17: Added incrementColumnValue.</li>
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* <li>Version 18: HBASE-1302.</li>
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* <li>Version 19: Added getClusterStatus().</li>
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* <li>Version 20: Backed Transaction HBase out of HBase core.</li>
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* <li>Version 21: HBASE-1665.</li>
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* <li>Version 22: HBASE-2209. Added List support to RPC</li>
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* <li>Version 23: HBASE-2066, multi-put.</li>
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* <li>Version 24: HBASE-2473, create table with regions.</li>
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* <li>Version 25: Added openRegion and Stoppable/Abortable to API.</li>
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* <li>Version 26: New master and Increment, 0.90 version bump.</li>
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* <li>Version 27: HBASE-3168, Added serverCurrentTime to regionServerStartup
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* in HMasterRegionInterface.</li>
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* <li>Version 28: HBASE-2321, add protocol class name to connection setup
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* for verification and future authorization</li>
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* </ul>
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*/
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public static final long versionID = 28L;
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}
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