| /** |
| * 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; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hbase.client.Admin; |
| import org.apache.hadoop.hbase.client.Put; |
| import org.apache.hadoop.hbase.client.RegionInfo; |
| import org.apache.hadoop.hbase.client.RegionLocator; |
| import org.apache.hadoop.hbase.client.Table; |
| import org.apache.hadoop.hbase.regionserver.HRegion; |
| import org.apache.hadoop.hbase.regionserver.HRegionServer; |
| import org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL; |
| import org.apache.hadoop.hbase.testclassification.LargeTests; |
| import org.apache.hadoop.hbase.testclassification.RegionServerTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.hadoop.hbase.wal.WAL; |
| import org.apache.hadoop.hbase.wal.WALFactory; |
| import org.junit.After; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| /** |
| * Testcase for HBASE-20066 |
| */ |
| @Category({ RegionServerTests.class, LargeTests.class }) |
| public class TestSequenceIdMonotonicallyIncreasing { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestSequenceIdMonotonicallyIncreasing.class); |
| |
| private static final HBaseTestingUtility UTIL = new HBaseTestingUtility(); |
| |
| private static final TableName NAME = TableName.valueOf("test"); |
| |
| private static final byte[] CF = Bytes.toBytes("cf"); |
| |
| private static final byte[] CQ = Bytes.toBytes("cq"); |
| |
| @BeforeClass |
| public static void setUpBeforeClass() throws Exception { |
| UTIL.startMiniCluster(2); |
| } |
| |
| @AfterClass |
| public static void tearDownAfterClass() throws Exception { |
| UTIL.shutdownMiniCluster(); |
| } |
| |
| @After |
| public void tearDown() throws IOException { |
| Admin admin = UTIL.getAdmin(); |
| if (admin.tableExists(NAME)) { |
| admin.disableTable(NAME); |
| admin.deleteTable(NAME); |
| } |
| } |
| |
| private Table createTable(boolean multiRegions) throws IOException { |
| if (multiRegions) { |
| return UTIL.createTable(NAME, CF, new byte[][] { Bytes.toBytes(1) }); |
| } else { |
| return UTIL.createTable(NAME, CF); |
| } |
| } |
| |
| private long getMaxSeqId(HRegionServer rs, RegionInfo region) throws IOException { |
| Path walFile = ((AbstractFSWAL<?>) rs.getWAL(null)).getCurrentFileName(); |
| long maxSeqId = -1L; |
| try (WAL.Reader reader = |
| WALFactory.createReader(UTIL.getTestFileSystem(), walFile, UTIL.getConfiguration())) { |
| for (;;) { |
| WAL.Entry entry = reader.next(); |
| if (entry == null) { |
| break; |
| } |
| if (Bytes.equals(region.getEncodedNameAsBytes(), entry.getKey().getEncodedRegionName())) { |
| maxSeqId = Math.max(maxSeqId, entry.getKey().getSequenceId()); |
| } |
| } |
| } |
| return maxSeqId; |
| } |
| |
| @Test |
| public void testSplit() |
| throws IOException, InterruptedException, ExecutionException, TimeoutException { |
| try (Table table = createTable(false)) { |
| table.put(new Put(Bytes.toBytes(0)).addColumn(CF, CQ, Bytes.toBytes(0))); |
| table.put(new Put(Bytes.toBytes(1)).addColumn(CF, CQ, Bytes.toBytes(0))); |
| } |
| UTIL.flush(NAME); |
| HRegionServer rs = UTIL.getRSForFirstRegionInTable(NAME); |
| RegionInfo region = UTIL.getMiniHBaseCluster().getRegions(NAME).get(0).getRegionInfo(); |
| UTIL.getAdmin().splitRegionAsync(region.getRegionName(), Bytes.toBytes(1)).get(1, |
| TimeUnit.MINUTES); |
| long maxSeqId = getMaxSeqId(rs, region); |
| RegionLocator locator = UTIL.getConnection().getRegionLocator(NAME); |
| HRegionLocation locA = locator.getRegionLocation(Bytes.toBytes(0), true); |
| HRegionLocation locB = locator.getRegionLocation(Bytes.toBytes(1), true); |
| assertEquals(maxSeqId + 1, locA.getSeqNum()); |
| assertEquals(maxSeqId + 1, locB.getSeqNum()); |
| } |
| |
| @Test |
| public void testMerge() |
| throws IOException, InterruptedException, ExecutionException, TimeoutException { |
| try (Table table = createTable(true)) { |
| table.put(new Put(Bytes.toBytes(0)).addColumn(CF, CQ, Bytes.toBytes(0))); |
| table.put(new Put(Bytes.toBytes(1)).addColumn(CF, CQ, Bytes.toBytes(0))); |
| table.put(new Put(Bytes.toBytes(2)).addColumn(CF, CQ, Bytes.toBytes(0))); |
| } |
| UTIL.flush(NAME); |
| MiniHBaseCluster cluster = UTIL.getMiniHBaseCluster(); |
| List<HRegion> regions = cluster.getRegions(NAME); |
| HRegion regionA = regions.get(0); |
| HRegion regionB = regions.get(1); |
| HRegionServer rsA = |
| cluster.getRegionServer(cluster.getServerWith(regionA.getRegionInfo().getRegionName())); |
| HRegionServer rsB = |
| cluster.getRegionServer(cluster.getServerWith(regionB.getRegionInfo().getRegionName())); |
| UTIL.getAdmin().mergeRegionsAsync(regionA.getRegionInfo().getRegionName(), |
| regionB.getRegionInfo().getRegionName(), false).get(1, TimeUnit.MINUTES); |
| long maxSeqIdA = getMaxSeqId(rsA, regionA.getRegionInfo()); |
| long maxSeqIdB = getMaxSeqId(rsB, regionB.getRegionInfo()); |
| HRegionLocation loc = |
| UTIL.getConnection().getRegionLocator(NAME).getRegionLocation(Bytes.toBytes(0), true); |
| assertEquals(Math.max(maxSeqIdA, maxSeqIdB) + 1, loc.getSeqNum()); |
| } |
| } |