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HDDS-488. Handle chill mode exception from SCM in OzoneManager. Contributed by Ajay Kumar.

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This commit is contained in:
Xiaoyu Yao 2018-09-18 19:58:09 -07:00
parent 17f5651a51
commit 3929653707
6 changed files with 367 additions and 8 deletions
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2
hadoop-ozone/common/src/main/java/org/apache/hadoop/ozone/om/helpers/OmBucketInfo.java
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@ -167,7 +167,7 @@ public static class Builder {
private StorageType storageType;
private long creationTime;
Builder() {
public Builder() {
//Default values
this.acls = new LinkedList<>();
this.isVersionEnabled = false;

2
hadoop-ozone/common/src/main/java/org/apache/hadoop/ozone/om/helpers/OmVolumeArgs.java
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@ -151,7 +151,7 @@ public static class Builder {
/**
* Constructs a builder.
*/
Builder() {
public Builder() {
keyValueMap = new HashMap<>();
aclMap = new OmOzoneAclMap();
}

171
hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestScmChillMode.java Normal file
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@ -0,0 +1,171 @@
/*
* 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.ozone.om;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicReference;
import org.apache.commons.lang3.RandomStringUtils;
import org.apache.hadoop.hdds.conf.OzoneConfiguration;
import org.apache.hadoop.hdds.scm.container.common.helpers.ContainerInfo;
import org.apache.hadoop.hdds.scm.server.StorageContainerManager;
import org.apache.hadoop.ozone.MiniOzoneCluster;
import org.apache.hadoop.ozone.TestStorageContainerManagerHelper;
import org.apache.hadoop.ozone.om.exceptions.OMException;
import org.apache.hadoop.ozone.om.helpers.OmBucketInfo;
import org.apache.hadoop.ozone.om.helpers.OmKeyArgs;
import org.apache.hadoop.ozone.om.helpers.OmKeyInfo;
import org.apache.hadoop.ozone.om.helpers.OmVolumeArgs;
import org.apache.hadoop.test.GenericTestUtils;
import org.apache.hadoop.test.LambdaTestUtils;
import org.apache.hadoop.util.Time;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.Timeout;
import static org.junit.Assert.fail;
/**
* Test Ozone Manager operation in distributed handler scenario.
*/
public class TestScmChillMode {
private static MiniOzoneCluster cluster = null;
private static MiniOzoneCluster.Builder builder = null;
private static OzoneConfiguration conf;
private static OzoneManager om;
@Rule
public Timeout timeout = new Timeout(1000 * 200);
/**
* Create a MiniDFSCluster for testing.
* <p>
* Ozone is made active by setting OZONE_ENABLED = true and
* OZONE_HANDLER_TYPE_KEY = "distributed"
*
* @throws IOException
*/
@Before
public void init() throws Exception {
conf = new OzoneConfiguration();
builder = MiniOzoneCluster.newBuilder(conf)
.setHbInterval(1000)
.setHbProcessorInterval(500)
.setStartDataNodes(false);
cluster = builder.build();
cluster.startHddsDatanodes();
cluster.waitForClusterToBeReady();
om = cluster.getOzoneManager();
}
/**
* Shutdown MiniDFSCluster.
*/
@After
public void shutdown() {
if (cluster != null) {
cluster.shutdown();
}
}
@Test
public void testChillModeOperations() throws Exception {
final AtomicReference<MiniOzoneCluster> miniCluster =
new AtomicReference<>();
try {
// Create {numKeys} random names keys.
TestStorageContainerManagerHelper helper =
new TestStorageContainerManagerHelper(cluster, conf);
Map<String, OmKeyInfo> keyLocations = helper.createKeys(100, 4096);
final List<ContainerInfo> containers = cluster
.getStorageContainerManager()
.getScmContainerManager().getStateManager().getAllContainers();
GenericTestUtils.waitFor(() -> {
return containers.size() > 10;
}, 100, 1000);
String volumeName = "volume" + RandomStringUtils.randomNumeric(5);
String bucketName = "bucket" + RandomStringUtils.randomNumeric(5);
String keyName = "key" + RandomStringUtils.randomNumeric(5);
String userName = "user" + RandomStringUtils.randomNumeric(5);
String adminName = "admin" + RandomStringUtils.randomNumeric(5);
OmKeyArgs keyArgs = new OmKeyArgs.Builder()
.setVolumeName(volumeName)
.setBucketName(bucketName)
.setKeyName(keyName)
.setDataSize(1000)
.build();
OmVolumeArgs volArgs = new OmVolumeArgs.Builder()
.setAdminName(adminName)
.setCreationTime(Time.monotonicNow())
.setQuotaInBytes(10000)
.setVolume(volumeName)
.setOwnerName(userName)
.build();
OmBucketInfo bucketInfo = new OmBucketInfo.Builder()
.setBucketName(bucketName)
.setIsVersionEnabled(false)
.setVolumeName(volumeName)
.build();
om.createVolume(volArgs);
om.createBucket(bucketInfo);
om.openKey(keyArgs);
//om.commitKey(keyArgs, 1);
cluster.stop();
new Thread(() -> {
try {
miniCluster.set(builder.build());
} catch (IOException e) {
fail("failed");
}
}).start();
StorageContainerManager scm;
GenericTestUtils.waitFor(() -> {
return miniCluster.get() != null;
}, 100, 1000 * 3);
scm = miniCluster.get().getStorageContainerManager();
Assert.assertTrue(scm.isInChillMode());
om = miniCluster.get().getOzoneManager();
LambdaTestUtils.intercept(OMException.class,
"ChillModePrecheck failed for allocateBlock",
() -> om.openKey(keyArgs));
} finally {
if (miniCluster.get() != null) {
try {
miniCluster.get().shutdown();
} catch (Exception e) {
// do nothing.
}
}
}
}
}

32
hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/KeyManagerImpl.java
View File

@ -21,6 +21,7 @@
import org.apache.hadoop.hdds.protocol.proto.HddsProtos.ReplicationFactor;
import org.apache.hadoop.hdds.protocol.proto.HddsProtos.ReplicationType;
import org.apache.hadoop.hdds.scm.container.common.helpers.AllocatedBlock;
import org.apache.hadoop.hdds.scm.exceptions.SCMException;
import org.apache.hadoop.hdds.scm.protocol.ScmBlockLocationProtocol;
import org.apache.hadoop.hdfs.DFSUtil;
import org.apache.hadoop.ozone.OzoneConsts;
@ -155,9 +156,18 @@ public OmKeyLocationInfo allocateBlock(OmKeyArgs args, long clientID)
}
OmKeyInfo keyInfo =
OmKeyInfo.getFromProtobuf(KeyInfo.parseFrom(keyData));
AllocatedBlock allocatedBlock =
scmBlockClient.allocateBlock(scmBlockSize, keyInfo.getType(),
keyInfo.getFactor(), omId);
AllocatedBlock allocatedBlock;
try {
allocatedBlock =
scmBlockClient.allocateBlock(scmBlockSize, keyInfo.getType(),
keyInfo.getFactor(), omId);
} catch (SCMException ex) {
if (ex.getResult()
.equals(SCMException.ResultCodes.CHILL_MODE_EXCEPTION)) {
throw new OMException(ex.getMessage(), ResultCodes.SCM_IN_CHILL_MODE);
}
throw ex;
}
OmKeyLocationInfo info = new OmKeyLocationInfo.Builder()
.setBlockID(allocatedBlock.getBlockID())
.setShouldCreateContainer(allocatedBlock.getCreateContainer())
@ -208,8 +218,20 @@ public OpenKeySession openKey(OmKeyArgs args) throws IOException {
// some blocks and piggyback to client, to save RPC calls.
while (requestedSize > 0) {
long allocateSize = Math.min(scmBlockSize, requestedSize);
AllocatedBlock allocatedBlock =
scmBlockClient.allocateBlock(allocateSize, type, factor, omId);
AllocatedBlock allocatedBlock;
try {
allocatedBlock = scmBlockClient
.allocateBlock(allocateSize, type, factor, omId);
} catch (IOException ex) {
if (ex instanceof SCMException) {
if (((SCMException) ex).getResult()
.equals(SCMException.ResultCodes.CHILL_MODE_EXCEPTION)) {
throw new OMException(ex.getMessage(),
ResultCodes.SCM_IN_CHILL_MODE);
}
}
throw ex;
}
OmKeyLocationInfo subKeyInfo = new OmKeyLocationInfo.Builder()
.setBlockID(allocatedBlock.getBlockID())
.setShouldCreateContainer(allocatedBlock.getCreateContainer())

3
hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/exceptions/OMException.java
View File

@ -113,6 +113,7 @@ public enum ResultCodes {
FAILED_METADATA_ERROR,
FAILED_INTERNAL_ERROR,
OM_NOT_INITIALIZED,
SCM_VERSION_MISMATCH_ERROR
SCM_VERSION_MISMATCH_ERROR,
SCM_IN_CHILL_MODE
}
}

165
hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestKeyManagerImpl.java Normal file
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@ -0,0 +1,165 @@
/*
* 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.ozone.om;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import org.apache.commons.lang3.RandomStringUtils;
import org.apache.hadoop.hdds.conf.OzoneConfiguration;
import org.apache.hadoop.hdds.protocol.proto.HddsProtos.ReplicationFactor;
import org.apache.hadoop.hdds.protocol.proto.HddsProtos.ReplicationType;
import org.apache.hadoop.hdds.scm.exceptions.SCMException;
import org.apache.hadoop.hdds.scm.exceptions.SCMException.ResultCodes;
import org.apache.hadoop.hdds.scm.protocol.ScmBlockLocationProtocol;
import org.apache.hadoop.hdfs.DFSUtil;
import org.apache.hadoop.ozone.om.exceptions.OMException;
import org.apache.hadoop.ozone.om.helpers.OmKeyArgs;
import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.KeyInfo;
import org.apache.hadoop.test.LambdaTestUtils;
import org.apache.hadoop.util.Time;
import org.apache.hadoop.utils.db.RDBStore;
import org.apache.hadoop.utils.db.Table;
import org.apache.hadoop.utils.db.TableConfig;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.mockito.Mockito;
import org.rocksdb.ColumnFamilyOptions;
import org.rocksdb.DBOptions;
import org.rocksdb.RocksDB;
import org.rocksdb.Statistics;
import org.rocksdb.StatsLevel;
/**
* Test class for @{@link KeyManagerImpl}.
* */
public class TestKeyManagerImpl {
private static KeyManagerImpl keyManager;
private static ScmBlockLocationProtocol scmBlockLocationProtocol;
private static OzoneConfiguration conf;
private static OMMetadataManager metadataManager;
private static long blockSize = 1000;
private static final String KEY_NAME = "key1";
private static final String BUCKET_NAME = "bucket1";
private static final String VOLUME_NAME = "vol1";
private static RDBStore rdbStore = null;
private static Table rdbTable = null;
private static DBOptions options = null;
private KeyInfo keyData;
@Rule
public TemporaryFolder folder = new TemporaryFolder();
@Before
public void setUp() throws Exception {
conf = new OzoneConfiguration();
scmBlockLocationProtocol = Mockito.mock(ScmBlockLocationProtocol.class);
metadataManager = Mockito.mock(OMMetadataManager.class);
keyManager = new KeyManagerImpl(scmBlockLocationProtocol, metadataManager,
conf, "om1");
setupMocks();
}
private void setupMocks() throws Exception {
Mockito.when(scmBlockLocationProtocol
.allocateBlock(Mockito.anyLong(), Mockito.any(ReplicationType.class),
Mockito.any(ReplicationFactor.class), Mockito.anyString()))
.thenThrow(
new SCMException("ChillModePrecheck failed for allocateBlock",
ResultCodes.CHILL_MODE_EXCEPTION));
setupRocksDb();
Mockito.when(metadataManager.getVolumeTable()).thenReturn(rdbTable);
Mockito.when(metadataManager.getBucketTable()).thenReturn(rdbTable);
Mockito.when(metadataManager.getOpenKeyTable()).thenReturn(rdbTable);
Mockito.when(metadataManager.getLock())
.thenReturn(new OzoneManagerLock(conf));
Mockito.when(metadataManager.getVolumeKey(VOLUME_NAME))
.thenReturn(VOLUME_NAME.getBytes());
Mockito.when(metadataManager.getBucketKey(VOLUME_NAME, BUCKET_NAME))
.thenReturn(BUCKET_NAME.getBytes());
Mockito.when(metadataManager.getOpenKeyBytes(VOLUME_NAME, BUCKET_NAME,
KEY_NAME, 1)).thenReturn(KEY_NAME.getBytes());
}
private void setupRocksDb() throws Exception {
options = new DBOptions();
options.setCreateIfMissing(true);
options.setCreateMissingColumnFamilies(true);
Statistics statistics = new Statistics();
statistics.setStatsLevel(StatsLevel.ALL);
options = options.setStatistics(statistics);
Set<TableConfig> configSet = new HashSet<>();
for (String name : Arrays
.asList(DFSUtil.bytes2String(RocksDB.DEFAULT_COLUMN_FAMILY),
"testTable")) {
TableConfig newConfig = new TableConfig(name, new ColumnFamilyOptions());
configSet.add(newConfig);
}
keyData = KeyInfo.newBuilder()
.setKeyName(KEY_NAME)
.setBucketName(BUCKET_NAME)
.setVolumeName(VOLUME_NAME)
.setDataSize(blockSize)
.setType(ReplicationType.STAND_ALONE)
.setFactor(ReplicationFactor.ONE)
.setCreationTime(Time.now())
.setModificationTime(Time.now())
.build();
rdbStore = new RDBStore(folder.newFolder(), options, configSet);
rdbTable = rdbStore.getTable("testTable");
rdbTable.put(VOLUME_NAME.getBytes(),
RandomStringUtils.random(10).getBytes(StandardCharsets.UTF_8));
rdbTable.put(BUCKET_NAME.getBytes(),
RandomStringUtils.random(10).getBytes(StandardCharsets.UTF_8));
rdbTable.put(KEY_NAME.getBytes(), keyData.toByteArray());
}
@Test
public void allocateBlockFailureInChillMode() throws Exception {
OmKeyArgs keyArgs = new OmKeyArgs.Builder().setKeyName(KEY_NAME)
.setBucketName(BUCKET_NAME)
.setFactor(ReplicationFactor.ONE)
.setType(ReplicationType.STAND_ALONE)
.setVolumeName(VOLUME_NAME).build();
LambdaTestUtils.intercept(OMException.class,
"ChillModePrecheck failed for allocateBlock", () -> {
keyManager.allocateBlock(keyArgs, 1);
});
}
@Test
public void openKeyFailureInChillMode() throws Exception {
OmKeyArgs keyArgs = new OmKeyArgs.Builder().setKeyName(KEY_NAME)
.setBucketName(BUCKET_NAME)
.setFactor(ReplicationFactor.ONE)
.setDataSize(1000)
.setType(ReplicationType.STAND_ALONE)
.setVolumeName(VOLUME_NAME).build();
LambdaTestUtils.intercept(OMException.class,
"ChillModePrecheck failed for allocateBlock", () -> {
keyManager.openKey(keyArgs);
});
}
}