| /** |
| * 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.regionserver; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.client.RegionInfo; |
| import org.apache.hadoop.hbase.client.TableDescriptor; |
| import org.apache.hadoop.hbase.testclassification.MediumTests; |
| import org.apache.hadoop.hbase.testclassification.RegionServerTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.hadoop.hbase.wal.WAL; |
| 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-20242 |
| */ |
| @Category({ RegionServerTests.class, MediumTests.class }) |
| public class TestOpenSeqNumUnexpectedIncrease { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestOpenSeqNumUnexpectedIncrease.class); |
| |
| private static final HBaseTestingUtility UTIL = new HBaseTestingUtility(); |
| |
| private static AtomicInteger FAILED_OPEN = new AtomicInteger(0); |
| |
| private static TableName TABLE_NAME = TableName.valueOf("test"); |
| |
| private static byte[] CF = Bytes.toBytes("CF"); |
| |
| public static final class MockHRegion extends HRegion { |
| |
| @SuppressWarnings("deprecation") |
| public MockHRegion(Path tableDir, WAL wal, FileSystem fs, Configuration confParam, |
| RegionInfo regionInfo, TableDescriptor htd, RegionServerServices rsServices) { |
| super(tableDir, wal, fs, confParam, regionInfo, htd, rsServices); |
| } |
| |
| @Override |
| protected void writeRegionOpenMarker(WAL wal, long openSeqId) throws IOException { |
| if (getRegionInfo().getTable().equals(TABLE_NAME) && FAILED_OPEN.get() > 0) { |
| FAILED_OPEN.decrementAndGet(); |
| rsServices.abort("for testing", new Exception("Inject error for testing")); |
| throw new IOException("Inject error for testing"); |
| } |
| } |
| |
| public Map<byte[], List<HStoreFile>> close() throws IOException { |
| //skip close |
| return null; |
| } |
| } |
| |
| @BeforeClass |
| public static void setUp() throws Exception { |
| UTIL.getConfiguration().setInt(HConstants.HBASE_RPC_TIMEOUT_KEY, 600000); |
| UTIL.getConfiguration().setClass(HConstants.REGION_IMPL, MockHRegion.class, HRegion.class); |
| UTIL.startMiniCluster(3); |
| UTIL.createTable(TABLE_NAME, CF); |
| UTIL.getAdmin().balancerSwitch(false, true); |
| } |
| |
| @AfterClass |
| public static void tearDown() throws Exception { |
| UTIL.shutdownMiniCluster(); |
| } |
| |
| @Test |
| public void test() throws IOException, InterruptedException { |
| HRegion region = UTIL.getMiniHBaseCluster().getRegions(TABLE_NAME).get(0); |
| long openSeqNum = region.getOpenSeqNum(); |
| HRegionServer src = UTIL.getRSForFirstRegionInTable(TABLE_NAME); |
| HRegionServer dst = UTIL.getOtherRegionServer(src); |
| |
| // will fail two times, and then verify that the open sequence number is still openSeqNum + 2 |
| FAILED_OPEN.set(2); |
| UTIL.getAdmin().move(region.getRegionInfo().getEncodedNameAsBytes(), dst.getServerName()); |
| UTIL.waitTableAvailable(TABLE_NAME); |
| |
| HRegion region1 = UTIL.getMiniHBaseCluster().getRegions(TABLE_NAME).get(0); |
| long openSeqNum1 = region1.getOpenSeqNum(); |
| |
| assertEquals(openSeqNum + 2, openSeqNum1); |
| } |
| } |