| /* |
| * 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; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNull; |
| import java.io.IOException; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.regionserver.HRegionServer; |
| import org.apache.hadoop.hbase.testclassification.ClientTests; |
| import org.apache.hadoop.hbase.testclassification.MediumTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.junit.AfterClass; |
| import org.junit.Before; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.junit.rules.TestName; |
| |
| @Category({ MediumTests.class, ClientTests.class }) |
| public class TestMvccConsistentScanner { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestMvccConsistentScanner.class); |
| |
| private static final HBaseTestingUtility UTIL = new HBaseTestingUtility(); |
| |
| private static Connection CONN; |
| |
| private static final byte[] CF = Bytes.toBytes("cf"); |
| |
| private static final byte[] CQ1 = Bytes.toBytes("cq1"); |
| |
| private static final byte[] CQ2 = Bytes.toBytes("cq2"); |
| |
| private static final byte[] CQ3 = Bytes.toBytes("cq3"); |
| @Rule |
| public TestName testName = new TestName(); |
| |
| private TableName tableName; |
| |
| @BeforeClass |
| public static void setUpBeforeClass() throws Exception { |
| UTIL.startMiniCluster(2); |
| CONN = ConnectionFactory.createConnection(UTIL.getConfiguration()); |
| } |
| |
| @AfterClass |
| public static void tearDownAfterClass() throws Exception { |
| CONN.close(); |
| UTIL.shutdownMiniCluster(); |
| } |
| |
| @Before |
| public void setUp() throws IOException, InterruptedException { |
| tableName = TableName.valueOf(testName.getMethodName().replaceAll("[^0-9a-zA-Z]", "_")); |
| UTIL.createTable(tableName, CF); |
| UTIL.waitTableAvailable(tableName); |
| } |
| |
| private void put(byte[] row, byte[] cq, byte[] value) throws IOException { |
| try (Table table = CONN.getTable(tableName)) { |
| table.put(new Put(row).addColumn(CF, cq, value)); |
| } |
| } |
| |
| private void move() throws IOException, InterruptedException { |
| RegionInfo region = |
| UTIL.getHBaseCluster().getRegions(tableName).stream().findAny().get().getRegionInfo(); |
| HRegionServer rs = |
| UTIL.getHBaseCluster().getRegionServerThreads().stream().map(t -> t.getRegionServer()) |
| .filter(r -> !r.getOnlineTables().contains(tableName)).findAny().get(); |
| UTIL.getAdmin().move(region.getEncodedNameAsBytes(), rs.getServerName()); |
| while (UTIL.getRSForFirstRegionInTable(tableName) != rs) { |
| Thread.sleep(100); |
| } |
| } |
| |
| @Test |
| public void testRowAtomic() throws IOException, InterruptedException { |
| byte[] row = Bytes.toBytes("row"); |
| put(row, CQ1, Bytes.toBytes(1)); |
| put(row, CQ2, Bytes.toBytes(2)); |
| try (Table table = CONN.getTable(tableName); |
| ResultScanner scanner = table.getScanner(new Scan().setBatch(1).setCaching(1))) { |
| Result result = scanner.next(); |
| assertEquals(1, result.rawCells().length); |
| assertEquals(1, Bytes.toInt(result.getValue(CF, CQ1))); |
| move(); |
| put(row, CQ3, Bytes.toBytes(3)); |
| result = scanner.next(); |
| assertEquals(1, result.rawCells().length); |
| assertEquals(2, Bytes.toInt(result.getValue(CF, CQ2))); |
| assertNull(scanner.next()); |
| } |
| } |
| |
| @Test |
| public void testCrossRowAtomicInRegion() throws IOException, InterruptedException { |
| put(Bytes.toBytes("row1"), CQ1, Bytes.toBytes(1)); |
| put(Bytes.toBytes("row2"), CQ1, Bytes.toBytes(2)); |
| try (Table table = CONN.getTable(tableName); |
| ResultScanner scanner = table.getScanner(new Scan().setCaching(1))) { |
| Result result = scanner.next(); |
| assertArrayEquals(Bytes.toBytes("row1"), result.getRow()); |
| assertEquals(1, Bytes.toInt(result.getValue(CF, CQ1))); |
| move(); |
| put(Bytes.toBytes("row3"), CQ1, Bytes.toBytes(3)); |
| result = scanner.next(); |
| assertArrayEquals(Bytes.toBytes("row2"), result.getRow()); |
| assertEquals(2, Bytes.toInt(result.getValue(CF, CQ1))); |
| assertNull(scanner.next()); |
| } |
| } |
| } |