| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.ozone.client.rpc; |
| |
| import java.io.IOException; |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| import java.time.Duration; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.UUID; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.hadoop.hdds.HddsUtils; |
| import org.apache.hadoop.hdds.client.BlockID; |
| import org.apache.hadoop.hdds.client.ReplicationType; |
| import org.apache.hadoop.hdds.conf.DatanodeRatisServerConfig; |
| import org.apache.hadoop.hdds.conf.OzoneConfiguration; |
| import org.apache.hadoop.hdds.protocol.DatanodeDetails; |
| import org.apache.hadoop.hdds.protocol.proto.HddsProtos; |
| import org.apache.hadoop.hdds.ratis.conf.RatisClientConfig; |
| import org.apache.hadoop.hdds.scm.OzoneClientConfig; |
| import org.apache.hadoop.hdds.scm.ScmConfigKeys; |
| import org.apache.hadoop.hdds.scm.container.ContainerID; |
| import org.apache.hadoop.hdds.scm.container.ContainerInfo; |
| import org.apache.hadoop.hdds.scm.pipeline.Pipeline; |
| import org.apache.hadoop.net.DNSToSwitchMapping; |
| import org.apache.hadoop.net.NetUtils; |
| import org.apache.hadoop.net.StaticMapping; |
| import org.apache.hadoop.ozone.MiniOzoneCluster; |
| import org.apache.hadoop.ozone.OzoneConfigKeys; |
| import org.apache.hadoop.ozone.OzoneConsts; |
| import org.apache.hadoop.ozone.client.ObjectStore; |
| import org.apache.hadoop.ozone.client.OzoneClient; |
| import org.apache.hadoop.ozone.client.OzoneClientFactory; |
| import org.apache.hadoop.ozone.client.io.BlockOutputStreamEntry; |
| import org.apache.hadoop.ozone.client.io.KeyOutputStream; |
| import org.apache.hadoop.ozone.client.io.OzoneOutputStream; |
| import org.apache.hadoop.ozone.container.ContainerTestHelper; |
| import org.apache.hadoop.ozone.container.TestHelper; |
| import org.apache.hadoop.ozone.om.helpers.OmKeyArgs; |
| import org.apache.hadoop.ozone.om.helpers.OmKeyInfo; |
| import org.apache.hadoop.ozone.om.helpers.OmKeyLocationInfo; |
| |
| import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.NET_TOPOLOGY_NODE_SWITCH_MAPPING_IMPL_KEY; |
| import static org.apache.hadoop.hdds.scm.ScmConfigKeys.OZONE_SCM_STALENODE_INTERVAL; |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Ignore; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.Timeout; |
| |
| /** |
| * Tests Exception handling by Ozone Client. |
| */ |
| public class TestFailureHandlingByClient { |
| |
| /** |
| * Set a timeout for each test. |
| */ |
| @Rule |
| public Timeout timeout = Timeout.seconds(300); |
| |
| private MiniOzoneCluster cluster; |
| private OzoneConfiguration conf; |
| private OzoneClient client; |
| private ObjectStore objectStore; |
| private int chunkSize; |
| private int blockSize; |
| private String volumeName; |
| private String bucketName; |
| private String keyString; |
| |
| /** |
| * Create a MiniDFSCluster for testing. |
| * <p> |
| * Ozone is made active by setting OZONE_ENABLED = true |
| * |
| * @throws IOException |
| */ |
| private void init() throws Exception { |
| conf = new OzoneConfiguration(); |
| chunkSize = (int) OzoneConsts.MB; |
| blockSize = 4 * chunkSize; |
| conf.setTimeDuration(OZONE_SCM_STALENODE_INTERVAL, 100, TimeUnit.SECONDS); |
| |
| RatisClientConfig ratisClientConfig = |
| conf.getObject(RatisClientConfig.class); |
| ratisClientConfig.setWriteRequestTimeout(Duration.ofSeconds(30)); |
| ratisClientConfig.setWatchRequestTimeout(Duration.ofSeconds(30)); |
| conf.setFromObject(ratisClientConfig); |
| |
| conf.setTimeDuration( |
| OzoneConfigKeys.DFS_RATIS_LEADER_ELECTION_MINIMUM_TIMEOUT_DURATION_KEY, |
| 1, TimeUnit.SECONDS); |
| conf.setBoolean( |
| OzoneConfigKeys.OZONE_NETWORK_TOPOLOGY_AWARE_READ_KEY, true); |
| conf.setInt(ScmConfigKeys.OZONE_DATANODE_PIPELINE_LIMIT, 2); |
| DatanodeRatisServerConfig ratisServerConfig = |
| conf.getObject(DatanodeRatisServerConfig.class); |
| ratisServerConfig.setRequestTimeOut(Duration.ofSeconds(3)); |
| ratisServerConfig.setWatchTimeOut(Duration.ofSeconds(3)); |
| conf.setFromObject(ratisServerConfig); |
| |
| RatisClientConfig.RaftConfig raftClientConfig = |
| conf.getObject(RatisClientConfig.RaftConfig.class); |
| raftClientConfig.setRpcRequestTimeout(Duration.ofSeconds(3)); |
| raftClientConfig.setRpcWatchRequestTimeout(Duration.ofSeconds(3)); |
| conf.setFromObject(raftClientConfig); |
| |
| OzoneClientConfig clientConfig = conf.getObject(OzoneClientConfig.class); |
| clientConfig.setStreamBufferFlushDelay(false); |
| conf.setFromObject(clientConfig); |
| |
| conf.setQuietMode(false); |
| conf.setClass(NET_TOPOLOGY_NODE_SWITCH_MAPPING_IMPL_KEY, |
| StaticMapping.class, DNSToSwitchMapping.class); |
| StaticMapping.addNodeToRack(NetUtils.normalizeHostNames( |
| Collections.singleton(HddsUtils.getHostName(conf))).get(0), |
| "/rack1"); |
| cluster = MiniOzoneCluster.newBuilder(conf) |
| .setNumDatanodes(10).setTotalPipelineNumLimit(15).build(); |
| cluster.waitForClusterToBeReady(); |
| //the easiest way to create an open container is creating a key |
| client = OzoneClientFactory.getRpcClient(conf); |
| objectStore = client.getObjectStore(); |
| keyString = UUID.randomUUID().toString(); |
| volumeName = "datanodefailurehandlingtest"; |
| bucketName = volumeName; |
| objectStore.createVolume(volumeName); |
| objectStore.getVolume(volumeName).createBucket(bucketName); |
| } |
| |
| private void startCluster() throws Exception { |
| init(); |
| } |
| |
| /** |
| * Shutdown MiniDFSCluster. |
| */ |
| @After |
| public void shutdown() { |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| } |
| |
| @Test |
| public void testBlockWritesWithDnFailures() throws Exception { |
| startCluster(); |
| String keyName = UUID.randomUUID().toString(); |
| OzoneOutputStream key = createKey(keyName, ReplicationType.RATIS, 0); |
| byte[] data = |
| ContainerTestHelper |
| .getFixedLengthString(keyString, chunkSize + chunkSize / 2).getBytes( |
| UTF_8); |
| key.write(data); |
| |
| // get the name of a valid container |
| Assert.assertTrue(key.getOutputStream() instanceof KeyOutputStream); |
| KeyOutputStream groupOutputStream = |
| (KeyOutputStream) key.getOutputStream(); |
| List<OmKeyLocationInfo> locationInfoList = |
| groupOutputStream.getLocationInfoList(); |
| Assert.assertTrue(locationInfoList.size() == 1); |
| long containerId = locationInfoList.get(0).getContainerID(); |
| ContainerInfo container = cluster.getStorageContainerManager() |
| .getContainerManager() |
| .getContainer(ContainerID.valueof(containerId)); |
| Pipeline pipeline = |
| cluster.getStorageContainerManager().getPipelineManager() |
| .getPipeline(container.getPipelineID()); |
| List<DatanodeDetails> datanodes = pipeline.getNodes(); |
| cluster.shutdownHddsDatanode(datanodes.get(0)); |
| cluster.shutdownHddsDatanode(datanodes.get(1)); |
| // The write will fail but exception will be handled and length will be |
| // updated correctly in OzoneManager once the steam is closed |
| key.close(); |
| //get the name of a valid container |
| OmKeyArgs keyArgs = new OmKeyArgs.Builder().setVolumeName(volumeName) |
| .setBucketName(bucketName).setType(HddsProtos.ReplicationType.RATIS) |
| .setFactor(HddsProtos.ReplicationFactor.THREE).setKeyName(keyName) |
| .setRefreshPipeline(true) |
| .build(); |
| OmKeyInfo keyInfo = cluster.getOzoneManager().lookupKey(keyArgs); |
| Assert.assertEquals(data.length, keyInfo.getDataSize()); |
| validateData(keyName, data); |
| } |
| |
| @Test |
| public void testWriteSmallFile() throws Exception { |
| startCluster(); |
| String keyName = UUID.randomUUID().toString(); |
| OzoneOutputStream key = |
| createKey(keyName, ReplicationType.RATIS, 0); |
| String data = ContainerTestHelper |
| .getFixedLengthString(keyString, chunkSize/2); |
| key.write(data.getBytes(UTF_8)); |
| // get the name of a valid container |
| Assert.assertTrue(key.getOutputStream() instanceof KeyOutputStream); |
| KeyOutputStream keyOutputStream = |
| (KeyOutputStream) key.getOutputStream(); |
| List<OmKeyLocationInfo> locationInfoList = |
| keyOutputStream.getLocationInfoList(); |
| long containerId = locationInfoList.get(0).getContainerID(); |
| BlockID blockId = locationInfoList.get(0).getBlockID(); |
| ContainerInfo container = |
| cluster.getStorageContainerManager().getContainerManager() |
| .getContainer(ContainerID.valueof(containerId)); |
| Pipeline pipeline = |
| cluster.getStorageContainerManager().getPipelineManager() |
| .getPipeline(container.getPipelineID()); |
| List<DatanodeDetails> datanodes = pipeline.getNodes(); |
| |
| cluster.shutdownHddsDatanode(datanodes.get(0)); |
| cluster.shutdownHddsDatanode(datanodes.get(1)); |
| key.close(); |
| // this will throw AlreadyClosedException and and current stream |
| // will be discarded and write a new block |
| OmKeyArgs keyArgs = new OmKeyArgs.Builder().setVolumeName(volumeName) |
| .setBucketName(bucketName).setType(HddsProtos.ReplicationType.RATIS) |
| .setFactor(HddsProtos.ReplicationFactor.THREE).setKeyName(keyName) |
| .setRefreshPipeline(true) |
| .build(); |
| OmKeyInfo keyInfo = cluster.getOzoneManager().lookupKey(keyArgs); |
| |
| // Make sure a new block is written |
| Assert.assertNotEquals( |
| keyInfo.getLatestVersionLocations().getBlocksLatestVersionOnly().get(0) |
| .getBlockID(), blockId); |
| Assert.assertEquals(data.getBytes(UTF_8).length, |
| keyInfo.getDataSize()); |
| validateData(keyName, data.getBytes(UTF_8)); |
| } |
| |
| |
| @Test |
| public void testContainerExclusionWithClosedContainerException() |
| throws Exception { |
| startCluster(); |
| String keyName = UUID.randomUUID().toString(); |
| OzoneOutputStream key = |
| createKey(keyName, ReplicationType.RATIS, blockSize); |
| String data = ContainerTestHelper |
| .getFixedLengthString(keyString, chunkSize); |
| |
| // get the name of a valid container |
| Assert.assertTrue(key.getOutputStream() instanceof KeyOutputStream); |
| KeyOutputStream keyOutputStream = |
| (KeyOutputStream) key.getOutputStream(); |
| List<BlockOutputStreamEntry> streamEntryList = |
| keyOutputStream.getStreamEntries(); |
| |
| // Assert that 1 block will be preallocated |
| Assert.assertEquals(1, streamEntryList.size()); |
| key.write(data.getBytes(UTF_8)); |
| key.flush(); |
| long containerId = streamEntryList.get(0).getBlockID().getContainerID(); |
| BlockID blockId = streamEntryList.get(0).getBlockID(); |
| List<Long> containerIdList = new ArrayList<>(); |
| containerIdList.add(containerId); |
| |
| // below check will assert if the container does not get closed |
| TestHelper |
| .waitForContainerClose(cluster, containerIdList.toArray(new Long[0])); |
| |
| // This write will hit ClosedContainerException and this container should |
| // will be added in the excludelist |
| key.write(data.getBytes(UTF_8)); |
| key.flush(); |
| |
| Assert.assertTrue(keyOutputStream.getExcludeList().getContainerIds() |
| .contains(ContainerID.valueof(containerId))); |
| Assert.assertTrue( |
| keyOutputStream.getExcludeList().getDatanodes().isEmpty()); |
| Assert.assertTrue( |
| keyOutputStream.getExcludeList().getPipelineIds().isEmpty()); |
| |
| // The close will just write to the buffer |
| key.close(); |
| OmKeyArgs keyArgs = new OmKeyArgs.Builder().setVolumeName(volumeName) |
| .setBucketName(bucketName).setType(HddsProtos.ReplicationType.RATIS) |
| .setFactor(HddsProtos.ReplicationFactor.THREE).setKeyName(keyName) |
| .setRefreshPipeline(true) |
| .build(); |
| OmKeyInfo keyInfo = cluster.getOzoneManager().lookupKey(keyArgs); |
| |
| // Make sure a new block is written |
| Assert.assertNotEquals( |
| keyInfo.getLatestVersionLocations().getBlocksLatestVersionOnly().get(0) |
| .getBlockID(), blockId); |
| Assert.assertEquals(2 * data.getBytes(UTF_8).length, |
| keyInfo.getDataSize()); |
| validateData(keyName, data.concat(data).getBytes(UTF_8)); |
| } |
| |
| @Test |
| @Ignore("HDDS-3298") |
| public void testDatanodeExclusionWithMajorityCommit() throws Exception { |
| startCluster(); |
| String keyName = UUID.randomUUID().toString(); |
| OzoneOutputStream key = |
| createKey(keyName, ReplicationType.RATIS, blockSize); |
| String data = ContainerTestHelper |
| .getFixedLengthString(keyString, chunkSize); |
| |
| // get the name of a valid container |
| Assert.assertTrue(key.getOutputStream() instanceof KeyOutputStream); |
| KeyOutputStream keyOutputStream = |
| (KeyOutputStream) key.getOutputStream(); |
| List<BlockOutputStreamEntry> streamEntryList = |
| keyOutputStream.getStreamEntries(); |
| |
| // Assert that 1 block will be preallocated |
| Assert.assertEquals(1, streamEntryList.size()); |
| key.write(data.getBytes(UTF_8)); |
| key.flush(); |
| long containerId = streamEntryList.get(0).getBlockID().getContainerID(); |
| BlockID blockId = streamEntryList.get(0).getBlockID(); |
| ContainerInfo container = |
| cluster.getStorageContainerManager().getContainerManager() |
| .getContainer(ContainerID.valueof(containerId)); |
| Pipeline pipeline = |
| cluster.getStorageContainerManager().getPipelineManager() |
| .getPipeline(container.getPipelineID()); |
| List<DatanodeDetails> datanodes = pipeline.getNodes(); |
| |
| // shutdown 1 datanode. This will make sure the 2 way commit happens for |
| // next write ops. |
| cluster.shutdownHddsDatanode(datanodes.get(0)); |
| |
| key.write(data.getBytes(UTF_8)); |
| key.write(data.getBytes(UTF_8)); |
| key.flush(); |
| |
| Assert.assertTrue(keyOutputStream.getExcludeList().getDatanodes() |
| .contains(datanodes.get(0))); |
| Assert.assertTrue( |
| keyOutputStream.getExcludeList().getContainerIds().isEmpty()); |
| Assert.assertTrue( |
| keyOutputStream.getExcludeList().getPipelineIds().isEmpty()); |
| // The close will just write to the buffer |
| key.close(); |
| |
| OmKeyArgs keyArgs = new OmKeyArgs.Builder().setVolumeName(volumeName) |
| .setBucketName(bucketName).setType(HddsProtos.ReplicationType.RATIS) |
| .setFactor(HddsProtos.ReplicationFactor.THREE).setKeyName(keyName) |
| .setRefreshPipeline(true) |
| .build(); |
| OmKeyInfo keyInfo = cluster.getOzoneManager().lookupKey(keyArgs); |
| |
| // Make sure a new block is written |
| Assert.assertNotEquals( |
| keyInfo.getLatestVersionLocations().getBlocksLatestVersionOnly().get(0) |
| .getBlockID(), blockId); |
| Assert.assertEquals(3 * data.getBytes(UTF_8).length, keyInfo.getDataSize()); |
| validateData(keyName, data.concat(data).concat(data).getBytes(UTF_8)); |
| } |
| |
| |
| @Test |
| public void testPipelineExclusionWithPipelineFailure() throws Exception { |
| startCluster(); |
| String keyName = UUID.randomUUID().toString(); |
| OzoneOutputStream key = |
| createKey(keyName, ReplicationType.RATIS, blockSize); |
| String data = ContainerTestHelper |
| .getFixedLengthString(keyString, chunkSize); |
| |
| // get the name of a valid container |
| Assert.assertTrue(key.getOutputStream() instanceof KeyOutputStream); |
| KeyOutputStream keyOutputStream = |
| (KeyOutputStream) key.getOutputStream(); |
| List<BlockOutputStreamEntry> streamEntryList = |
| keyOutputStream.getStreamEntries(); |
| |
| // Assert that 1 block will be preallocated |
| Assert.assertEquals(1, streamEntryList.size()); |
| key.write(data.getBytes(UTF_8)); |
| key.flush(); |
| long containerId = streamEntryList.get(0).getBlockID().getContainerID(); |
| BlockID blockId = streamEntryList.get(0).getBlockID(); |
| ContainerInfo container = |
| cluster.getStorageContainerManager().getContainerManager() |
| .getContainer(ContainerID.valueof(containerId)); |
| Pipeline pipeline = |
| cluster.getStorageContainerManager().getPipelineManager() |
| .getPipeline(container.getPipelineID()); |
| List<DatanodeDetails> datanodes = pipeline.getNodes(); |
| |
| // Two nodes, next write will hit AlreadyClosedException , the pipeline |
| // will be added in the exclude list |
| cluster.shutdownHddsDatanode(datanodes.get(0)); |
| cluster.shutdownHddsDatanode(datanodes.get(1)); |
| |
| key.write(data.getBytes(UTF_8)); |
| key.write(data.getBytes(UTF_8)); |
| key.flush(); |
| Assert.assertTrue(keyOutputStream.getExcludeList().getPipelineIds() |
| .contains(pipeline.getId())); |
| Assert.assertTrue( |
| keyOutputStream.getExcludeList().getContainerIds().isEmpty()); |
| Assert.assertTrue( |
| keyOutputStream.getExcludeList().getDatanodes().isEmpty()); |
| // The close will just write to the buffer |
| key.close(); |
| |
| OmKeyArgs keyArgs = new OmKeyArgs.Builder().setVolumeName(volumeName) |
| .setBucketName(bucketName).setType(HddsProtos.ReplicationType.RATIS) |
| .setFactor(HddsProtos.ReplicationFactor.THREE).setKeyName(keyName) |
| .setRefreshPipeline(true) |
| .build(); |
| OmKeyInfo keyInfo = cluster.getOzoneManager().lookupKey(keyArgs); |
| |
| // Make sure a new block is written |
| Assert.assertNotEquals( |
| keyInfo.getLatestVersionLocations().getBlocksLatestVersionOnly().get(0) |
| .getBlockID(), blockId); |
| Assert.assertEquals(3 * data.getBytes(UTF_8).length, keyInfo.getDataSize()); |
| validateData(keyName, data.concat(data).concat(data).getBytes(UTF_8)); |
| } |
| |
| private OzoneOutputStream createKey(String keyName, ReplicationType type, |
| long size) throws Exception { |
| return TestHelper |
| .createKey(keyName, type, size, objectStore, volumeName, bucketName); |
| } |
| |
| private void validateData(String keyName, byte[] data) throws Exception { |
| TestHelper |
| .validateData(keyName, data, objectStore, volumeName, bucketName); |
| } |
| } |
