| /** |
| * 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.master.procedure; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.concurrent.atomic.AtomicInteger; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.log.HBaseMarkers; |
| import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility; |
| import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility.TestProcedure; |
| import org.apache.hadoop.hbase.procedure2.store.ProcedureStore; |
| import org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureStore; |
| import org.apache.hadoop.hbase.testclassification.LargeTests; |
| import org.apache.hadoop.hbase.testclassification.MasterTests; |
| import org.apache.hadoop.hbase.util.CommonFSUtils; |
| import org.apache.hadoop.hbase.util.Threads; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.hdfs.server.datanode.DataNode; |
| import org.junit.Before; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @Category({MasterTests.class, LargeTests.class}) |
| public class TestWALProcedureStoreOnHDFS { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestWALProcedureStoreOnHDFS.class); |
| |
| private static final Logger LOG = LoggerFactory.getLogger(TestWALProcedureStoreOnHDFS.class); |
| |
| protected static final HBaseTestingUtility UTIL = new HBaseTestingUtility(); |
| |
| private WALProcedureStore store; |
| |
| private ProcedureStore.ProcedureStoreListener stopProcedureListener = new ProcedureStore.ProcedureStoreListener() { |
| @Override |
| public void postSync() {} |
| |
| @Override |
| public void abortProcess() { |
| LOG.error(HBaseMarkers.FATAL, "Abort the Procedure Store"); |
| store.stop(true); |
| } |
| }; |
| |
| @Before |
| public void initConfig() { |
| Configuration conf = UTIL.getConfiguration(); |
| |
| conf.setInt("dfs.replication", 3); |
| conf.setInt("dfs.namenode.replication.min", 3); |
| |
| // increase the value for slow test-env |
| conf.setInt(WALProcedureStore.WAIT_BEFORE_ROLL_CONF_KEY, 1000); |
| conf.setInt(WALProcedureStore.ROLL_RETRIES_CONF_KEY, 10); |
| conf.setInt(WALProcedureStore.MAX_SYNC_FAILURE_ROLL_CONF_KEY, 10); |
| } |
| |
| // No @Before because some tests need to do additional config first |
| private void setupDFS() throws Exception { |
| Configuration conf = UTIL.getConfiguration(); |
| MiniDFSCluster dfs = UTIL.startMiniDFSCluster(3); |
| CommonFSUtils.setWALRootDir(conf, new Path(conf.get("fs.defaultFS"), "/tmp/wal")); |
| |
| Path logDir = new Path(new Path(dfs.getFileSystem().getUri()), "/test-logs"); |
| store = ProcedureTestingUtility.createWalStore(conf, logDir); |
| store.registerListener(stopProcedureListener); |
| store.start(8); |
| store.recoverLease(); |
| } |
| |
| // No @After |
| @SuppressWarnings("JUnit4TearDownNotRun") |
| public void tearDown() throws Exception { |
| store.stop(false); |
| UTIL.getDFSCluster().getFileSystem().delete(store.getWALDir(), true); |
| |
| try { |
| UTIL.shutdownMiniCluster(); |
| } catch (Exception e) { |
| LOG.warn("failure shutting down cluster", e); |
| } |
| } |
| |
| @Test(expected=RuntimeException.class) |
| public void testWalAbortOnLowReplication() throws Exception { |
| setupDFS(); |
| |
| assertEquals(3, UTIL.getDFSCluster().getDataNodes().size()); |
| |
| LOG.info("Stop DataNode"); |
| UTIL.getDFSCluster().stopDataNode(0); |
| assertEquals(2, UTIL.getDFSCluster().getDataNodes().size()); |
| |
| store.insert(new TestProcedure(1, -1), null); |
| for (long i = 2; store.isRunning(); ++i) { |
| assertEquals(2, UTIL.getDFSCluster().getDataNodes().size()); |
| store.insert(new TestProcedure(i, -1), null); |
| Thread.sleep(100); |
| } |
| assertFalse(store.isRunning()); |
| } |
| |
| @Test |
| public void testWalAbortOnLowReplicationWithQueuedWriters() throws Exception { |
| setupDFS(); |
| |
| assertEquals(3, UTIL.getDFSCluster().getDataNodes().size()); |
| store.registerListener(new ProcedureStore.ProcedureStoreListener() { |
| @Override |
| public void postSync() { Threads.sleepWithoutInterrupt(2000); } |
| |
| @Override |
| public void abortProcess() {} |
| }); |
| |
| final AtomicInteger reCount = new AtomicInteger(0); |
| Thread[] thread = new Thread[store.getNumThreads() * 2 + 1]; |
| for (int i = 0; i < thread.length; ++i) { |
| final long procId = i + 1L; |
| thread[i] = new Thread(() -> { |
| try { |
| LOG.debug("[S] INSERT " + procId); |
| store.insert(new TestProcedure(procId, -1), null); |
| LOG.debug("[E] INSERT " + procId); |
| } catch (RuntimeException e) { |
| reCount.incrementAndGet(); |
| LOG.debug("[F] INSERT " + procId + ": " + e.getMessage()); |
| } |
| }); |
| thread[i].start(); |
| } |
| |
| Thread.sleep(1000); |
| LOG.info("Stop DataNode"); |
| UTIL.getDFSCluster().stopDataNode(0); |
| assertEquals(2, UTIL.getDFSCluster().getDataNodes().size()); |
| |
| for (int i = 0; i < thread.length; ++i) { |
| thread[i].join(); |
| } |
| |
| assertFalse(store.isRunning()); |
| assertTrue(reCount.toString(), reCount.get() >= store.getNumThreads() && |
| reCount.get() < thread.length); |
| } |
| |
| @Test |
| public void testWalRollOnLowReplication() throws Exception { |
| UTIL.getConfiguration().setInt("dfs.namenode.replication.min", 1); |
| setupDFS(); |
| |
| int dnCount = 0; |
| store.insert(new TestProcedure(1, -1), null); |
| UTIL.getDFSCluster().restartDataNode(dnCount); |
| for (long i = 2; i < 100; ++i) { |
| store.insert(new TestProcedure(i, -1), null); |
| waitForNumReplicas(3); |
| Thread.sleep(100); |
| if ((i % 30) == 0) { |
| LOG.info("Restart Data Node"); |
| UTIL.getDFSCluster().restartDataNode(++dnCount % 3); |
| } |
| } |
| assertTrue(store.isRunning()); |
| } |
| |
| public void waitForNumReplicas(int numReplicas) throws Exception { |
| while (UTIL.getDFSCluster().getDataNodes().size() < numReplicas) { |
| Thread.sleep(100); |
| } |
| |
| for (int i = 0; i < numReplicas; ++i) { |
| for (DataNode dn: UTIL.getDFSCluster().getDataNodes()) { |
| while (!dn.isDatanodeFullyStarted()) { |
| Thread.sleep(100); |
| } |
| } |
| } |
| } |
| } |