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Revert "HDDS-194. Remove NodePoolManager and node pool handling from SCM. Contributed by Elek Marton" 

This reverts commit aaf03cc459.
This commit is contained in:
Xiaoyu Yao 2018-06-27 13:25:45 -07:00
parent aaf03cc459
commit 0d6fe5f36b
23 changed files with 1596 additions and 368 deletions
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26
hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/scm/ScmConfigKeys.java
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@ -243,6 +243,32 @@ public final class ScmConfigKeys {
public static final String
OZONE_SCM_CONTAINER_CREATION_LEASE_TIMEOUT_DEFAULT = "60s";
/**
* Don't start processing a pool if we have not had a minimum number of
* seconds from the last processing.
*/
public static final String OZONE_SCM_CONTAINER_REPORT_PROCESSING_INTERVAL =
"ozone.scm.container.report.processing.interval";
public static final String
OZONE_SCM_CONTAINER_REPORT_PROCESSING_INTERVAL_DEFAULT = "60s";
/**
* This determines the total number of pools to be processed in parallel.
*/
public static final String OZONE_SCM_MAX_NODEPOOL_PROCESSING_THREADS =
"ozone.scm.max.nodepool.processing.threads";
public static final int OZONE_SCM_MAX_NODEPOOL_PROCESSING_THREADS_DEFAULT = 1;
/**
* These 2 settings control the number of threads in executor pool and time
* outs for thw container reports from all nodes.
*/
public static final String OZONE_SCM_MAX_CONTAINER_REPORT_THREADS =
"ozone.scm.max.container.report.threads";
public static final int OZONE_SCM_MAX_CONTAINER_REPORT_THREADS_DEFAULT = 100;
public static final String OZONE_SCM_CONTAINER_REPORTS_WAIT_TIMEOUT =
"ozone.scm.container.reports.wait.timeout";
public static final String OZONE_SCM_CONTAINER_REPORTS_WAIT_TIMEOUT_DEFAULT =
"5m";
public static final String OZONE_SCM_BLOCK_DELETION_MAX_RETRY =
"ozone.scm.block.deletion.max.retry";

1
hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/OzoneConsts.java
View File

@ -91,6 +91,7 @@ public final class OzoneConsts {
public static final String SCM_CONTAINER_DB = "scm-" + CONTAINER_DB_SUFFIX;
public static final String DN_CONTAINER_DB = "-dn-"+ CONTAINER_DB_SUFFIX;
public static final String BLOCK_DB = "block.db";
public static final String NODEPOOL_DB = "nodepool.db";
public static final String OPEN_CONTAINERS_DB = "openContainers.db";
public static final String DELETED_BLOCK_DB = "deletedBlock.db";
public static final String KSM_DB_NAME = "ksm.db";

47
hadoop-hdds/common/src/main/resources/ozone-default.xml
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@ -571,6 +571,25 @@
allocation.
</description>
</property>
<property>
<name>ozone.scm.container.report.processing.interval</name>
<value>60s</value>
<tag>OZONE, PERFORMANCE</tag>
<description>Time interval for scm to process container reports
for a node pool. Scm handles node pool reports in a cyclic clock
manner, it fetches pools periodically with this time interval.
</description>
</property>
<property>
<name>ozone.scm.container.reports.wait.timeout</name>
<value>300s</value>
<tag>OZONE, PERFORMANCE, MANAGEMENT</tag>
<description>Maximum time to wait in seconds for processing all container
reports from
a node pool. It determines the timeout for a
node pool report.
</description>
</property>
<property>
<name>ozone.scm.container.size.gb</name>
<value>5</value>
@ -773,6 +792,17 @@
The keytab file for Kerberos authentication in SCM.
</description>
</property>
<property>
<name>ozone.scm.max.container.report.threads</name>
<value>100</value>
<tag>OZONE, PERFORMANCE</tag>
<description>
Maximum number of threads to process container reports in scm.
Each container report from a data node is processed by scm in a worker
thread, fetched from a thread pool. This property is used to control the
maximum size of the thread pool.
</description>
</property>
<property>
<name>ozone.scm.max.hb.count.to.process</name>
<value>5000</value>
@ -784,6 +814,14 @@
for more info.
</description>
</property>
<property>
<name>ozone.scm.max.nodepool.processing.threads</name>
<value>1</value>
<tag>OZONE, MANAGEMENT, PERFORMANCE</tag>
<description>
Number of node pools to process in parallel.
</description>
</property>
<property>
<name>ozone.scm.names</name>
<value/>
@ -805,6 +843,15 @@
see ozone.scm.heartbeat.thread.interval before changing this value.
</description>
</property>
<property>
<name>ozone.scm.max.nodepool.processing.threads</name>
<value>1</value>
<tag>OZONE, SCM</tag>
<description>
Controls the number of node pools that can be processed in parallel by
Container Supervisor.
</description>
</property>
<property>
<name>ozone.trace.enabled</name>
<value>false</value>

78
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/replication/ReplicationQueue.java
View File

@ -1,78 +0,0 @@
/*
* 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.container.replication;
import java.util.List;
import java.util.PriorityQueue;
import java.util.Queue;
/**
* Priority queue to handle under-replicated and over replicated containers
* in ozone. ReplicationManager will consume these messages and decide
* accordingly.
*/
public class ReplicationQueue {
private final Queue<ReplicationReqMsg> queue;
ReplicationQueue() {
queue = new PriorityQueue<>();
}
public synchronized boolean add(ReplicationReqMsg repObj) {
if (this.queue.contains(repObj)) {
// Remove the earlier message and insert this one
this.queue.remove(repObj);
return this.queue.add(repObj);
} else {
return this.queue.add(repObj);
}
}
public synchronized boolean remove(ReplicationReqMsg repObj) {
return queue.remove(repObj);
}
/**
* Retrieves, but does not remove, the head of this queue,
* or returns {@code null} if this queue is empty.
*
* @return the head of this queue, or {@code null} if this queue is empty
*/
public synchronized ReplicationReqMsg peek() {
return queue.peek();
}
/**
* Retrieves and removes the head of this queue,
* or returns {@code null} if this queue is empty.
*
* @return the head of this queue, or {@code null} if this queue is empty
*/
public synchronized ReplicationReqMsg poll() {
return queue.poll();
}
public synchronized boolean removeAll(List<ReplicationReqMsg> repObjs) {
return queue.removeAll(repObjs);
}
public int size() {
return queue.size();
}
}

107
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/replication/ReplicationReqMsg.java
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@ -1,107 +0,0 @@
/*
* 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.container.replication;
import java.io.Serializable;
import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.math.NumberUtils;
/**
* Wrapper class for hdds replication queue. Implements its natural
* ordering for priority queue.
*/
public class ReplicationReqMsg implements Comparable<ReplicationReqMsg>,
Serializable {
private final long containerId;
private final short replicationCount;
private final short expecReplicationCount;
private final long timestamp;
public ReplicationReqMsg(long containerId, short replicationCount,
long timestamp, short expecReplicationCount) {
this.containerId = containerId;
this.replicationCount = replicationCount;
this.timestamp = timestamp;
this.expecReplicationCount = expecReplicationCount;
}
/**
* Compares this object with the specified object for order. Returns a
* negative integer, zero, or a positive integer as this object is less
* than, equal to, or greater than the specified object.
* @param o the object to be compared.
* @return a negative integer, zero, or a positive integer as this object
* is less than, equal to, or greater than the specified object.
* @throws NullPointerException if the specified object is null
* @throws ClassCastException if the specified object's type prevents it
* from being compared to this object.
*/
@Override
public int compareTo(ReplicationReqMsg o) {
if (this == o) {
return 0;
}
if (o == null) {
return 1;
}
int retVal = NumberUtils
.compare(getReplicationCount() - getExpecReplicationCount(),
o.getReplicationCount() - o.getExpecReplicationCount());
if (retVal != 0) {
return retVal;
}
return NumberUtils.compare(getTimestamp(), o.getTimestamp());
}
@Override
public int hashCode() {
return new HashCodeBuilder(91, 1011)
.append(getContainerId())
.toHashCode();
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
ReplicationReqMsg that = (ReplicationReqMsg) o;
return new EqualsBuilder().append(getContainerId(), that.getContainerId())
.isEquals();
}
public long getContainerId() {
return containerId;
}
public short getReplicationCount() {
return replicationCount;
}
public long getTimestamp() {
return timestamp;
}
public short getExpecReplicationCount() {
return expecReplicationCount;
}
}

23
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/replication/package-info.java
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@ -1,23 +0,0 @@
/**
* 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.container.replication;
/**
* Ozone Container replicaton related classes.
*/

134
hadoop-hdds/container-service/src/test/java/org/apache/hadoop/ozone/container/replication/TestReplicationQueue.java
View File

@ -1,134 +0,0 @@
/*
* 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.container.replication;
import java.util.Random;
import java.util.UUID;
import org.apache.hadoop.util.Time;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
/**
* Test class for ReplicationQueue.
*/
public class TestReplicationQueue {
private ReplicationQueue replicationQueue;
private Random random;
@Before
public void setUp() {
replicationQueue = new ReplicationQueue();
random = new Random();
}
@Test
public void testDuplicateAddOp() {
long contId = random.nextLong();
String nodeId = UUID.randomUUID().toString();
ReplicationReqMsg obj1, obj2, obj3;
long time = Time.monotonicNow();
obj1 = new ReplicationReqMsg(contId, (short) 2, time, (short) 3);
obj2 = new ReplicationReqMsg(contId, (short) 2, time + 1, (short) 3);
obj3 = new ReplicationReqMsg(contId, (short) 1, time+2, (short) 3);
replicationQueue.add(obj1);
replicationQueue.add(obj2);
replicationQueue.add(obj3);
Assert.assertEquals("Should add only 1 msg as second one is duplicate",
1, replicationQueue.size());
ReplicationReqMsg temp = replicationQueue.poll();
Assert.assertEquals(temp, obj3);
}
@Test
public void testPollOp() {
long contId = random.nextLong();
String nodeId = UUID.randomUUID().toString();
ReplicationReqMsg msg1, msg2, msg3, msg4, msg5;
msg1 = new ReplicationReqMsg(contId, (short) 1, Time.monotonicNow(),
(short) 3);
long time = Time.monotonicNow();
msg2 = new ReplicationReqMsg(contId + 1, (short) 4, time, (short) 3);
msg3 = new ReplicationReqMsg(contId + 2, (short) 0, time, (short) 3);
msg4 = new ReplicationReqMsg(contId, (short) 2, time, (short) 3);
// Replication message for same container but different nodeId
msg5 = new ReplicationReqMsg(contId + 1, (short) 2, time, (short) 3);
replicationQueue.add(msg1);
replicationQueue.add(msg2);
replicationQueue.add(msg3);
replicationQueue.add(msg4);
replicationQueue.add(msg5);
Assert.assertEquals("Should have 3 objects",
3, replicationQueue.size());
// Since Priority queue orders messages according to replication count,
// message with lowest replication should be first
ReplicationReqMsg temp;
temp = replicationQueue.poll();
Assert.assertEquals("Should have 2 objects",
2, replicationQueue.size());
Assert.assertEquals(temp, msg3);
temp = replicationQueue.poll();
Assert.assertEquals("Should have 1 objects",
1, replicationQueue.size());
Assert.assertEquals(temp, msg5);
// Message 2 should be ordered before message 5 as both have same replication
// number but message 2 has earlier timestamp.
temp = replicationQueue.poll();
Assert.assertEquals("Should have 0 objects",
replicationQueue.size(), 0);
Assert.assertEquals(temp, msg4);
}
@Test
public void testRemoveOp() {
long contId = random.nextLong();
String nodeId = UUID.randomUUID().toString();
ReplicationReqMsg obj1, obj2, obj3;
obj1 = new ReplicationReqMsg(contId, (short) 1, Time.monotonicNow(),
(short) 3);
obj2 = new ReplicationReqMsg(contId + 1, (short) 2, Time.monotonicNow(),
(short) 3);
obj3 = new ReplicationReqMsg(contId + 2, (short) 3, Time.monotonicNow(),
(short) 3);
replicationQueue.add(obj1);
replicationQueue.add(obj2);
replicationQueue.add(obj3);
Assert.assertEquals("Should have 3 objects",
3, replicationQueue.size());
replicationQueue.remove(obj3);
Assert.assertEquals("Should have 2 objects",
2, replicationQueue.size());
replicationQueue.remove(obj2);
Assert.assertEquals("Should have 1 objects",
1, replicationQueue.size());
replicationQueue.remove(obj1);
Assert.assertEquals("Should have 0 objects",
0, replicationQueue.size());
}
}

23
hadoop-hdds/container-service/src/test/java/org/apache/hadoop/ozone/container/replication/package-info.java
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@ -1,23 +0,0 @@
/*
* 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.
*
*/
/**
* SCM Testing and Mocking Utils.
*/
package org.apache.hadoop.ozone.container.replication;
// Test classes for Replication functionality.

8
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/ContainerMapping.java
View File

@ -24,6 +24,7 @@ import org.apache.hadoop.hdds.protocol.DatanodeDetails;
import org.apache.hadoop.hdds.scm.ScmConfigKeys;
import org.apache.hadoop.hdds.scm.container.closer.ContainerCloser;
import org.apache.hadoop.hdds.scm.container.common.helpers.ContainerInfo;
import org.apache.hadoop.hdds.scm.container.replication.ContainerSupervisor;
import org.apache.hadoop.hdds.scm.exceptions.SCMException;
import org.apache.hadoop.hdds.scm.node.NodeManager;
import org.apache.hadoop.hdds.scm.pipelines.PipelineSelector;
@ -79,6 +80,7 @@ public class ContainerMapping implements Mapping {
private final PipelineSelector pipelineSelector;
private final ContainerStateManager containerStateManager;
private final LeaseManager<ContainerInfo> containerLeaseManager;
private final ContainerSupervisor containerSupervisor;
private final float containerCloseThreshold;
private final ContainerCloser closer;
private final long size;
@ -125,7 +127,9 @@ public class ContainerMapping implements Mapping {
OZONE_SCM_CONTAINER_SIZE_DEFAULT) * 1024 * 1024 * 1024;
this.containerStateManager =
new ContainerStateManager(conf, this);
this.containerSupervisor =
new ContainerSupervisor(conf, nodeManager,
nodeManager.getNodePoolManager());
this.containerCloseThreshold = conf.getFloat(
ScmConfigKeys.OZONE_SCM_CONTAINER_CLOSE_THRESHOLD,
ScmConfigKeys.OZONE_SCM_CONTAINER_CLOSE_THRESHOLD_DEFAULT);
@ -403,7 +407,7 @@ public class ContainerMapping implements Mapping {
throws IOException {
List<StorageContainerDatanodeProtocolProtos.ContainerInfo>
containerInfos = reports.getReportsList();
containerSupervisor.handleContainerReport(datanodeDetails, reports);
for (StorageContainerDatanodeProtocolProtos.ContainerInfo datanodeState :
containerInfos) {
byte[] dbKey = Longs.toByteArray(datanodeState.getContainerID());

340
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/ContainerSupervisor.java Normal file
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@ -0,0 +1,340 @@
/*
* 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.hdds.scm.container.replication;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Preconditions;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdds.scm.exceptions.SCMException;
import org.apache.hadoop.hdds.scm.node.NodeManager;
import org.apache.hadoop.hdds.scm.node.NodePoolManager;
import org.apache.hadoop.hdds.protocol.DatanodeDetails;
import org.apache.hadoop.hdds.protocol.proto
.StorageContainerDatanodeProtocolProtos.ContainerReportsProto;
import org.apache.hadoop.util.Time;
import org.apache.hadoop.util.concurrent.HadoopExecutors;
import org.apache.hadoop.util.concurrent.HadoopThreadPoolExecutor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.Closeable;
import java.io.IOException;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.PriorityQueue;
import java.util.Set;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import static com.google.common.util.concurrent.Uninterruptibles
.sleepUninterruptibly;
import static org.apache.hadoop.hdds.scm.ScmConfigKeys
.OZONE_SCM_CONTAINER_REPORTS_WAIT_TIMEOUT;
import static org.apache.hadoop.hdds.scm.ScmConfigKeys
.OZONE_SCM_CONTAINER_REPORTS_WAIT_TIMEOUT_DEFAULT;
import static org.apache.hadoop.hdds.scm.ScmConfigKeys
.OZONE_SCM_CONTAINER_REPORT_PROCESSING_INTERVAL;
import static org.apache.hadoop.hdds.scm.ScmConfigKeys
.OZONE_SCM_CONTAINER_REPORT_PROCESSING_INTERVAL_DEFAULT;
import static org.apache.hadoop.hdds.scm.ScmConfigKeys
.OZONE_SCM_MAX_CONTAINER_REPORT_THREADS;
import static org.apache.hadoop.hdds.scm.ScmConfigKeys
.OZONE_SCM_MAX_CONTAINER_REPORT_THREADS_DEFAULT;
import static org.apache.hadoop.hdds.scm.ScmConfigKeys
.OZONE_SCM_MAX_NODEPOOL_PROCESSING_THREADS;
import static org.apache.hadoop.hdds.scm.ScmConfigKeys
.OZONE_SCM_MAX_NODEPOOL_PROCESSING_THREADS_DEFAULT;
/**
* This class takes a set of container reports that belong to a pool and then
* computes the replication levels for each container.
*/
public class ContainerSupervisor implements Closeable {
public static final Logger LOG =
LoggerFactory.getLogger(ContainerSupervisor.class);
private final NodePoolManager poolManager;
private final HashSet<String> poolNames;
private final PriorityQueue<PeriodicPool> poolQueue;
private final NodeManager nodeManager;
private final long containerProcessingLag;
private final AtomicBoolean runnable;
private final ExecutorService executorService;
private final long maxPoolWait;
private long poolProcessCount;
private final List<InProgressPool> inProgressPoolList;
private final AtomicInteger threadFaultCount;
private final int inProgressPoolMaxCount;
private final ReadWriteLock inProgressPoolListLock;
/**
* Returns the number of times we have processed pools.
* @return long
*/
public long getPoolProcessCount() {
return poolProcessCount;
}
/**
* Constructs a class that computes Replication Levels.
*
* @param conf - OzoneConfiguration
* @param nodeManager - Node Manager
* @param poolManager - Pool Manager
*/
public ContainerSupervisor(Configuration conf, NodeManager nodeManager,
NodePoolManager poolManager) {
Preconditions.checkNotNull(poolManager);
Preconditions.checkNotNull(nodeManager);
this.containerProcessingLag =
conf.getTimeDuration(OZONE_SCM_CONTAINER_REPORT_PROCESSING_INTERVAL,
OZONE_SCM_CONTAINER_REPORT_PROCESSING_INTERVAL_DEFAULT,
TimeUnit.SECONDS
) * 1000;
int maxContainerReportThreads =
conf.getInt(OZONE_SCM_MAX_CONTAINER_REPORT_THREADS,
OZONE_SCM_MAX_CONTAINER_REPORT_THREADS_DEFAULT
);
this.maxPoolWait =
conf.getTimeDuration(OZONE_SCM_CONTAINER_REPORTS_WAIT_TIMEOUT,
OZONE_SCM_CONTAINER_REPORTS_WAIT_TIMEOUT_DEFAULT,
TimeUnit.MILLISECONDS);
this.inProgressPoolMaxCount = conf.getInt(
OZONE_SCM_MAX_NODEPOOL_PROCESSING_THREADS,
OZONE_SCM_MAX_NODEPOOL_PROCESSING_THREADS_DEFAULT);
this.poolManager = poolManager;
this.nodeManager = nodeManager;
this.poolNames = new HashSet<>();
this.poolQueue = new PriorityQueue<>();
this.runnable = new AtomicBoolean(true);
this.threadFaultCount = new AtomicInteger(0);
this.executorService = newCachedThreadPool(
new ThreadFactoryBuilder().setDaemon(true)
.setNameFormat("Container Reports Processing Thread - %d")
.build(), maxContainerReportThreads);
this.inProgressPoolList = new LinkedList<>();
this.inProgressPoolListLock = new ReentrantReadWriteLock();
initPoolProcessThread();
}
private ExecutorService newCachedThreadPool(ThreadFactory threadFactory,
int maxThreads) {
return new HadoopThreadPoolExecutor(0, maxThreads, 60L, TimeUnit.SECONDS,
new LinkedBlockingQueue<>(), threadFactory);
}
/**
* Returns the number of pools that are under process right now.
* @return int - Number of pools that are in process.
*/
public int getInProgressPoolCount() {
return inProgressPoolList.size();
}
/**
* Exits the background thread.
*/
public void setExit() {
this.runnable.set(false);
}
/**
* Adds or removes pools from names that we need to process.
*
* There are two different cases that we need to process.
* The case where some pools are being added and some times we have to
* handle cases where pools are removed.
*/
private void refreshPools() {
List<String> pools = this.poolManager.getNodePools();
if (pools != null) {
HashSet<String> removedPools =
computePoolDifference(this.poolNames, new HashSet<>(pools));
HashSet<String> addedPools =
computePoolDifference(new HashSet<>(pools), this.poolNames);
// TODO: Support remove pool API in pool manager so that this code
// path can be tested. This never happens in the current code base.
for (String poolName : removedPools) {
for (PeriodicPool periodicPool : poolQueue) {
if (periodicPool.getPoolName().compareTo(poolName) == 0) {
poolQueue.remove(periodicPool);
}
}
}
// Remove the pool names that we have in the list.
this.poolNames.removeAll(removedPools);
for (String poolName : addedPools) {
poolQueue.add(new PeriodicPool(poolName));
}
// Add to the pool names we are tracking.
poolNames.addAll(addedPools);
}
}
/**
* Handle the case where pools are added.
*
* @param newPools - New Pools list
* @param oldPool - oldPool List.
*/
private HashSet<String> computePoolDifference(HashSet<String> newPools,
Set<String> oldPool) {
Preconditions.checkNotNull(newPools);
Preconditions.checkNotNull(oldPool);
HashSet<String> newSet = new HashSet<>(newPools);
newSet.removeAll(oldPool);
return newSet;
}
private void initPoolProcessThread() {
/*
* Task that runs to check if we need to start a pool processing job.
* if so we create a pool reconciliation job and find out of all the
* expected containers are on the nodes.
*/
Runnable processPools = () -> {
while (runnable.get()) {
// Make sure that we don't have any new pools.
refreshPools();
while (inProgressPoolList.size() < inProgressPoolMaxCount) {
PeriodicPool pool = poolQueue.poll();
if (pool != null) {
if (pool.getLastProcessedTime() + this.containerProcessingLag >
Time.monotonicNow()) {
LOG.debug("Not within the time window for processing: {}",
pool.getPoolName());
// we might over sleep here, not a big deal.
sleepUninterruptibly(this.containerProcessingLag,
TimeUnit.MILLISECONDS);
}
LOG.debug("Adding pool {} to container processing queue",
pool.getPoolName());
InProgressPool inProgressPool = new InProgressPool(maxPoolWait,
pool, this.nodeManager, this.poolManager, this.executorService);
inProgressPool.startReconciliation();
inProgressPoolListLock.writeLock().lock();
try {
inProgressPoolList.add(inProgressPool);
} finally {
inProgressPoolListLock.writeLock().unlock();
}
poolProcessCount++;
} else {
break;
}
}
sleepUninterruptibly(this.maxPoolWait, TimeUnit.MILLISECONDS);
inProgressPoolListLock.readLock().lock();
try {
for (InProgressPool inProgressPool : inProgressPoolList) {
inProgressPool.finalizeReconciliation();
poolQueue.add(inProgressPool.getPool());
}
} finally {
inProgressPoolListLock.readLock().unlock();
}
inProgressPoolListLock.writeLock().lock();
try {
inProgressPoolList.clear();
} finally {
inProgressPoolListLock.writeLock().unlock();
}
}
};
// We will have only one thread for pool processing.
Thread poolProcessThread = new Thread(processPools);
poolProcessThread.setDaemon(true);
poolProcessThread.setName("Pool replica thread");
poolProcessThread.setUncaughtExceptionHandler((Thread t, Throwable e) -> {
// Let us just restart this thread after logging a critical error.
// if this thread is not running we cannot handle commands from SCM.
LOG.error("Critical Error : Pool replica thread encountered an " +
"error. Thread: {} Error Count : {}", t.toString(), e,
threadFaultCount.incrementAndGet());
poolProcessThread.start();
// TODO : Add a config to restrict how many times we will restart this
// thread in a single session.
});
poolProcessThread.start();
}
/**
* Adds a container report to appropriate inProgress Pool.
* @param containerReport -- Container report for a specific container from
* a datanode.
*/
public void handleContainerReport(DatanodeDetails datanodeDetails,
ContainerReportsProto containerReport) {
inProgressPoolListLock.readLock().lock();
try {
String poolName = poolManager.getNodePool(datanodeDetails);
for (InProgressPool ppool : inProgressPoolList) {
if (ppool.getPoolName().equalsIgnoreCase(poolName)) {
ppool.handleContainerReport(datanodeDetails, containerReport);
return;
}
}
// TODO: Decide if we can do anything else with this report.
LOG.debug("Discarding the container report for pool {}. " +
"That pool is not currently in the pool reconciliation process." +
" Container Name: {}", poolName, datanodeDetails);
} catch (SCMException e) {
LOG.warn("Skipping processing container report from datanode {}, "
+ "cause: failed to get the corresponding node pool",
datanodeDetails.toString(), e);
} finally {
inProgressPoolListLock.readLock().unlock();
}
}
/**
* Get in process pool list, used for testing.
* @return List of InProgressPool
*/
@VisibleForTesting
public List<InProgressPool> getInProcessPoolList() {
return inProgressPoolList;
}
/**
* Shutdown the Container Replication Manager.
* @throws IOException if an I/O error occurs
*/
@Override
public void close() throws IOException {
setExit();
HadoopExecutors.shutdown(executorService, LOG, 5, TimeUnit.SECONDS);
}
}

255
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/InProgressPool.java Normal file
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@ -0,0 +1,255 @@
/*
* 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.hdds.scm.container.replication;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Preconditions;
import org.apache.hadoop.hdds.scm.node.NodeManager;
import org.apache.hadoop.hdds.scm.node.NodePoolManager;
import org.apache.hadoop.hdds.protocol.DatanodeDetails;
import org.apache.hadoop.hdds.protocol.proto
.StorageContainerDatanodeProtocolProtos.ContainerInfo;
import org.apache.hadoop.hdds.protocol.proto
.StorageContainerDatanodeProtocolProtos.ContainerReportsProto;
import org.apache.hadoop.util.Time;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Predicate;
import java.util.stream.Collectors;
/**
* These are pools that are actively checking for replication status of the
* containers.
*/
public final class InProgressPool {
public static final Logger LOG =
LoggerFactory.getLogger(InProgressPool.class);
private final PeriodicPool pool;
private final NodeManager nodeManager;
private final NodePoolManager poolManager;
private final ExecutorService executorService;
private final Map<Long, Integer> containerCountMap;
private final Map<UUID, Boolean> processedNodeSet;
private final long startTime;
private ProgressStatus status;
private AtomicInteger nodeCount;
private AtomicInteger nodeProcessed;
private AtomicInteger containerProcessedCount;
private long maxWaitTime;
/**
* Constructs an pool that is being processed.
* @param maxWaitTime - Maximum wait time in milliseconds.
* @param pool - Pool that we are working against
* @param nodeManager - Nodemanager
* @param poolManager - pool manager
* @param executorService - Shared Executor service.
*/
InProgressPool(long maxWaitTime, PeriodicPool pool,
NodeManager nodeManager, NodePoolManager poolManager,
ExecutorService executorService) {
Preconditions.checkNotNull(pool);
Preconditions.checkNotNull(nodeManager);
Preconditions.checkNotNull(poolManager);
Preconditions.checkNotNull(executorService);
Preconditions.checkArgument(maxWaitTime > 0);
this.pool = pool;
this.nodeManager = nodeManager;
this.poolManager = poolManager;
this.executorService = executorService;
this.containerCountMap = new ConcurrentHashMap<>();
this.processedNodeSet = new ConcurrentHashMap<>();
this.maxWaitTime = maxWaitTime;
startTime = Time.monotonicNow();
}
/**
* Returns periodic pool.
*
* @return PeriodicPool
*/
public PeriodicPool getPool() {
return pool;
}
/**
* We are done if we have got reports from all nodes or we have
* done waiting for the specified time.
*
* @return true if we are done, false otherwise.
*/
public boolean isDone() {
return (nodeCount.get() == nodeProcessed.get()) ||
(this.startTime + this.maxWaitTime) > Time.monotonicNow();
}
/**
* Gets the number of containers processed.
*
* @return int
*/
public int getContainerProcessedCount() {
return containerProcessedCount.get();
}
/**
* Returns the start time in milliseconds.
*
* @return - Start Time.
*/
public long getStartTime() {
return startTime;
}
/**
* Get the number of nodes in this pool.
*
* @return - node count
*/
public int getNodeCount() {
return nodeCount.get();
}
/**
* Get the number of nodes that we have already processed container reports
* from.
*
* @return - Processed count.
*/
public int getNodeProcessed() {
return nodeProcessed.get();
}
/**
* Returns the current status.
*
* @return Status
*/
public ProgressStatus getStatus() {
return status;
}
/**
* Starts the reconciliation process for all the nodes in the pool.
*/
public void startReconciliation() {
List<DatanodeDetails> datanodeDetailsList =
this.poolManager.getNodes(pool.getPoolName());
if (datanodeDetailsList.size() == 0) {
LOG.error("Datanode list for {} is Empty. Pool with no nodes ? ",
pool.getPoolName());
this.status = ProgressStatus.Error;
return;
}
nodeProcessed = new AtomicInteger(0);
containerProcessedCount = new AtomicInteger(0);
nodeCount = new AtomicInteger(0);
this.status = ProgressStatus.InProgress;
this.getPool().setLastProcessedTime(Time.monotonicNow());
}
/**
* Queues a container Report for handling. This is done in a worker thread
* since decoding a container report might be compute intensive . We don't
* want to block since we have asked for bunch of container reports
* from a set of datanodes.
*
* @param containerReport - ContainerReport
*/
public void handleContainerReport(DatanodeDetails datanodeDetails,
ContainerReportsProto containerReport) {
if (status == ProgressStatus.InProgress) {
executorService.submit(processContainerReport(datanodeDetails,
containerReport));
} else {
LOG.debug("Cannot handle container report when the pool is in {} status.",
status);
}
}
private Runnable processContainerReport(DatanodeDetails datanodeDetails,
ContainerReportsProto reports) {
return () -> {
if (processedNodeSet.computeIfAbsent(datanodeDetails.getUuid(),
(k) -> true)) {
nodeProcessed.incrementAndGet();
LOG.debug("Total Nodes processed : {} Node Name: {} ", nodeProcessed,
datanodeDetails.getUuid());
for (ContainerInfo info : reports.getReportsList()) {
containerProcessedCount.incrementAndGet();
LOG.debug("Total Containers processed: {} Container Name: {}",
containerProcessedCount.get(), info.getContainerID());
// Update the container map with count + 1 if the key exists or
// update the map with 1. Since this is a concurrentMap the
// computation and update is atomic.
containerCountMap.merge(info.getContainerID(), 1, Integer::sum);
}
}
};
}
/**
* Filter the containers based on specific rules.
*
* @param predicate -- Predicate to filter by
* @return A list of map entries.
*/
public List<Map.Entry<Long, Integer>> filterContainer(
Predicate<Map.Entry<Long, Integer>> predicate) {
return containerCountMap.entrySet().stream()
.filter(predicate).collect(Collectors.toList());
}
/**
* Used only for testing, calling this will abort container report
* processing. This is very dangerous call and should not be made by any users
*/
@VisibleForTesting
public void setDoneProcessing() {
nodeProcessed.set(nodeCount.get());
}
/**
* Returns the pool name.
*
* @return Name of the pool.
*/
String getPoolName() {
return pool.getPoolName();
}
public void finalizeReconciliation() {
status = ProgressStatus.Done;
//TODO: Add finalizing logic. This is where actual reconciliation happens.
}
/**
* Current status of the computing replication status.
*/
public enum ProgressStatus {
InProgress, Done, Error
}
}

119
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/PeriodicPool.java Normal file
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@ -0,0 +1,119 @@
/*
* 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.hdds.scm.container.replication;
import java.util.concurrent.atomic.AtomicLong;
/**
* Periodic pool is a pool with a time stamp, this allows us to process pools
* based on a cyclic clock.
*/
public class PeriodicPool implements Comparable<PeriodicPool> {
private final String poolName;
private long lastProcessedTime;
private AtomicLong totalProcessedCount;
/**
* Constructs a periodic pool.
*
* @param poolName - Name of the pool
*/
public PeriodicPool(String poolName) {
this.poolName = poolName;
lastProcessedTime = 0;
totalProcessedCount = new AtomicLong(0);
}
/**
* Get pool Name.
* @return PoolName
*/
public String getPoolName() {
return poolName;
}
/**
* Compares this object with the specified object for order. Returns a
* negative integer, zero, or a positive integer as this object is less
* than, equal to, or greater than the specified object.
*
* @param o the object to be compared.
* @return a negative integer, zero, or a positive integer as this object is
* less than, equal to, or greater than the specified object.
* @throws NullPointerException if the specified object is null
* @throws ClassCastException if the specified object's type prevents it
* from being compared to this object.
*/
@Override
public int compareTo(PeriodicPool o) {
return Long.compare(this.lastProcessedTime, o.lastProcessedTime);
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
PeriodicPool that = (PeriodicPool) o;
return poolName.equals(that.poolName);
}
@Override
public int hashCode() {
return poolName.hashCode();
}
/**
* Returns the Total Times we have processed this pool.
*
* @return processed count.
*/
public long getTotalProcessedCount() {
return totalProcessedCount.get();
}
/**
* Gets the last time we processed this pool.
* @return time in milliseconds
*/
public long getLastProcessedTime() {
return this.lastProcessedTime;
}
/**
* Sets the last processed time.
*
* @param lastProcessedTime - Long in milliseconds.
*/
public void setLastProcessedTime(long lastProcessedTime) {
this.lastProcessedTime = lastProcessedTime;
}
/*
* Increments the total processed count.
*/
public void incTotalProcessedCount() {
this.totalProcessedCount.incrementAndGet();
}
}

23
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/package-info.java Normal file
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@ -0,0 +1,23 @@
/**
* 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.hdds.scm.container.replication;
/*
This package contains routines that manage replication of a container. This
relies on container reports to understand the replication level of a
container - UnderReplicated, Replicated, OverReplicated -- and manages the
replication level based on that.
*/

6
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/node/NodeManager.java
View File

@ -123,6 +123,12 @@ public interface NodeManager extends StorageContainerNodeProtocol,
*/
SCMNodeMetric getNodeStat(DatanodeDetails datanodeDetails);
/**
* Returns the NodePoolManager associated with the NodeManager.
* @return NodePoolManager
*/
NodePoolManager getNodePoolManager();
/**
* Wait for the heartbeat is processed by NodeManager.
* @return true if heartbeat has been processed.

71
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/node/NodePoolManager.java Normal file
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@ -0,0 +1,71 @@
/**
* 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.hdds.scm.node;
import org.apache.hadoop.hdds.scm.exceptions.SCMException;
import org.apache.hadoop.hdds.protocol.DatanodeDetails;
import java.io.Closeable;
import java.io.IOException;
import java.util.List;
/**
* Interface that defines SCM NodePoolManager.
*/
public interface NodePoolManager extends Closeable {
/**
* Add a node to a node pool.
* @param pool - name of the node pool.
* @param node - data node.
*/
void addNode(String pool, DatanodeDetails node) throws IOException;
/**
* Remove a node from a node pool.
* @param pool - name of the node pool.
* @param node - data node.
* @throws SCMException
*/
void removeNode(String pool, DatanodeDetails node)
throws SCMException;
/**
* Get a list of known node pools.
* @return a list of known node pool names or an empty list if not node pool
* is defined.
*/
List<String> getNodePools();
/**
* Get all nodes of a node pool given the name of the node pool.
* @param pool - name of the node pool.
* @return a list of datanode ids or an empty list if the node pool was not
* found.
*/
List<DatanodeDetails> getNodes(String pool);
/**
* Get the node pool name if the node has been added to a node pool.
* @param datanodeDetails - datanode ID.
* @return node pool name if it has been assigned.
* null if the node has not been assigned to any node pool yet.
*/
String getNodePool(DatanodeDetails datanodeDetails) throws SCMException;
}

23
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/node/SCMNodeManager.java
View File

@ -53,6 +53,7 @@ import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
import org.apache.hadoop.util.Time;
import org.apache.hadoop.util.concurrent.HadoopExecutors;
import com.google.protobuf.GeneratedMessage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -158,6 +159,7 @@ public class SCMNodeManager
private ObjectName nmInfoBean;
// Node pool manager.
private final SCMNodePoolManager nodePoolManager;
private final StorageContainerManager scmManager;
public static final Event<CommandForDatanode> DATANODE_COMMAND =
@ -208,6 +210,7 @@ public class SCMNodeManager
registerMXBean();
this.nodePoolManager = new SCMNodePoolManager(conf);
this.scmManager = scmManager;
}
@ -679,6 +682,7 @@ public class SCMNodeManager
@Override
public void close() throws IOException {
unregisterMXBean();
nodePoolManager.close();
executorService.shutdown();
try {
if (!executorService.awaitTermination(5, TimeUnit.SECONDS)) {
@ -756,6 +760,20 @@ public class SCMNodeManager
LOG.info("Leaving startup chill mode.");
}
// TODO: define node pool policy for non-default node pool.
// For now, all nodes are added to the "DefaultNodePool" upon registration
// if it has not been added to any node pool yet.
try {
if (nodePoolManager.getNodePool(datanodeDetails) == null) {
nodePoolManager.addNode(SCMNodePoolManager.DEFAULT_NODEPOOL,
datanodeDetails);
}
} catch (IOException e) {
// TODO: make sure registration failure is handled correctly.
return RegisteredCommand.newBuilder()
.setErrorCode(ErrorCode.errorNodeNotPermitted)
.build();
}
// Updating Node Report, as registration is successful
updateNodeStat(datanodeDetails.getUuid(), nodeReport);
LOG.info("Data node with ID: {} Registered.",
@ -841,6 +859,11 @@ public class SCMNodeManager
return new SCMNodeMetric(nodeStats.get(datanodeDetails.getUuid()));
}
@Override
public NodePoolManager getNodePoolManager() {
return nodePoolManager;
}
@Override
public Map<String, Integer> getNodeCount() {
Map<String, Integer> nodeCountMap = new HashMap<String, Integer>();

269
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/node/SCMNodePoolManager.java Normal file
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@ -0,0 +1,269 @@
/**
* 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.hdds.scm.node;
import com.google.common.base.Preconditions;
import org.apache.hadoop.hdds.scm.exceptions.SCMException;
import org.apache.hadoop.hdfs.DFSUtil;
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.ozone.OzoneConsts;
import org.apache.hadoop.utils.MetadataStore;
import org.apache.hadoop.utils.MetadataStoreBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import java.util.stream.Collectors;
import static org.apache.hadoop.hdds.scm.ScmConfigKeys
.OZONE_SCM_DB_CACHE_SIZE_DEFAULT;
import static org.apache.hadoop.hdds.scm.ScmConfigKeys
.OZONE_SCM_DB_CACHE_SIZE_MB;
import static org.apache.hadoop.hdds.scm.exceptions.SCMException.ResultCodes
.FAILED_TO_FIND_NODE_IN_POOL;
import static org.apache.hadoop.hdds.scm.exceptions.SCMException.ResultCodes
.FAILED_TO_LOAD_NODEPOOL;
import static org.apache.hadoop.hdds.server.ServerUtils.getOzoneMetaDirPath;
import static org.apache.hadoop.ozone.OzoneConsts.NODEPOOL_DB;
/**
* SCM node pool manager that manges node pools.
*/
public final class SCMNodePoolManager implements NodePoolManager {
private static final Logger LOG =
LoggerFactory.getLogger(SCMNodePoolManager.class);
private static final List<DatanodeDetails> EMPTY_NODE_LIST =
new ArrayList<>();
private static final List<String> EMPTY_NODEPOOL_LIST = new ArrayList<>();
public static final String DEFAULT_NODEPOOL = "DefaultNodePool";
// DB that saves the node to node pool mapping.
private MetadataStore nodePoolStore;
// In-memory node pool to nodes mapping
private HashMap<String, Set<DatanodeDetails>> nodePools;
// Read-write lock for nodepool operations
private ReadWriteLock lock;
/**
* Construct SCMNodePoolManager class that manages node to node pool mapping.
* @param conf - configuration.
* @throws IOException
*/
public SCMNodePoolManager(final OzoneConfiguration conf)
throws IOException {
final int cacheSize = conf.getInt(OZONE_SCM_DB_CACHE_SIZE_MB,
OZONE_SCM_DB_CACHE_SIZE_DEFAULT);
File metaDir = getOzoneMetaDirPath(conf);
String scmMetaDataDir = metaDir.getPath();
File nodePoolDBPath = new File(scmMetaDataDir, NODEPOOL_DB);
nodePoolStore = MetadataStoreBuilder.newBuilder()
.setConf(conf)
.setDbFile(nodePoolDBPath)
.setCacheSize(cacheSize * OzoneConsts.MB)
.build();
nodePools = new HashMap<>();
lock = new ReentrantReadWriteLock();
init();
}
/**
* Initialize the in-memory store based on persist store from level db.
* No lock is needed as init() is only invoked by constructor.
* @throws SCMException
*/
private void init() throws SCMException {
try {
nodePoolStore.iterate(null, (key, value) -> {
try {
DatanodeDetails nodeId = DatanodeDetails.getFromProtoBuf(
HddsProtos.DatanodeDetailsProto.PARSER.parseFrom(key));
String poolName = DFSUtil.bytes2String(value);
Set<DatanodeDetails> nodePool = null;
if (nodePools.containsKey(poolName)) {
nodePool = nodePools.get(poolName);
} else {
nodePool = new HashSet<>();
nodePools.put(poolName, nodePool);
}
nodePool.add(nodeId);
if (LOG.isDebugEnabled()) {
LOG.debug("Adding node: {} to node pool: {}",
nodeId, poolName);
}
} catch (IOException e) {
LOG.warn("Can't add a datanode to node pool, continue next...");
}
return true;
});
} catch (IOException e) {
LOG.error("Loading node pool error " + e);
throw new SCMException("Failed to load node pool",
FAILED_TO_LOAD_NODEPOOL);
}
}
/**
* Add a datanode to a node pool.
* @param pool - name of the node pool.
* @param node - name of the datanode.
*/
@Override
public void addNode(final String pool, final DatanodeDetails node)
throws IOException {
Preconditions.checkNotNull(pool, "pool name is null");
Preconditions.checkNotNull(node, "node is null");
lock.writeLock().lock();
try {
// add to the persistent store
nodePoolStore.put(node.getProtoBufMessage().toByteArray(),
DFSUtil.string2Bytes(pool));
// add to the in-memory store
Set<DatanodeDetails> nodePool = null;
if (nodePools.containsKey(pool)) {
nodePool = nodePools.get(pool);
} else {
nodePool = new HashSet<DatanodeDetails>();
nodePools.put(pool, nodePool);
}
nodePool.add(node);
} finally {
lock.writeLock().unlock();
}
}
/**
* Remove a datanode from a node pool.
* @param pool - name of the node pool.
* @param node - datanode id.
* @throws SCMException
*/
@Override
public void removeNode(final String pool, final DatanodeDetails node)
throws SCMException {
Preconditions.checkNotNull(pool, "pool name is null");
Preconditions.checkNotNull(node, "node is null");
lock.writeLock().lock();
try {
// Remove from the persistent store
byte[] kName = node.getProtoBufMessage().toByteArray();
byte[] kData = nodePoolStore.get(kName);
if (kData == null) {
throw new SCMException(String.format("Unable to find node %s from" +
" pool %s in DB.", DFSUtil.bytes2String(kName), pool),
FAILED_TO_FIND_NODE_IN_POOL);
}
nodePoolStore.delete(kName);
// Remove from the in-memory store
if (nodePools.containsKey(pool)) {
Set<DatanodeDetails> nodePool = nodePools.get(pool);
nodePool.remove(node);
} else {
throw new SCMException(String.format("Unable to find node %s from" +
" pool %s in MAP.", DFSUtil.bytes2String(kName), pool),
FAILED_TO_FIND_NODE_IN_POOL);
}
} catch (IOException e) {
throw new SCMException("Failed to remove node " + node.toString()
+ " from node pool " + pool, e,
SCMException.ResultCodes.IO_EXCEPTION);
} finally {
lock.writeLock().unlock();
}
}
/**
* Get all the node pools.
* @return all the node pools.
*/
@Override
public List<String> getNodePools() {
lock.readLock().lock();
try {
if (!nodePools.isEmpty()) {
return nodePools.keySet().stream().collect(Collectors.toList());
} else {
return EMPTY_NODEPOOL_LIST;
}
} finally {
lock.readLock().unlock();
}
}
/**
* Get all datanodes of a specific node pool.
* @param pool - name of the node pool.
* @return all datanodes of the specified node pool.
*/
@Override
public List<DatanodeDetails> getNodes(final String pool) {
Preconditions.checkNotNull(pool, "pool name is null");
if (nodePools.containsKey(pool)) {
return nodePools.get(pool).stream().collect(Collectors.toList());
} else {
return EMPTY_NODE_LIST;
}
}
/**
* Get the node pool name if the node has been added to a node pool.
* @param datanodeDetails - datanode ID.
* @return node pool name if it has been assigned.
* null if the node has not been assigned to any node pool yet.
* TODO: Put this in a in-memory map if performance is an issue.
*/
@Override
public String getNodePool(final DatanodeDetails datanodeDetails)
throws SCMException {
Preconditions.checkNotNull(datanodeDetails, "node is null");
try {
byte[] result = nodePoolStore.get(
datanodeDetails.getProtoBufMessage().toByteArray());
return result == null ? null : DFSUtil.bytes2String(result);
} catch (IOException e) {
throw new SCMException("Failed to get node pool for node "
+ datanodeDetails.toString(), e,
SCMException.ResultCodes.IO_EXCEPTION);
}
}
/**
* Close node pool level db store.
* @throws IOException
*/
@Override
public void close() throws IOException {
nodePoolStore.close();
}
}

6
hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/container/MockNodeManager.java
View File

@ -19,6 +19,7 @@ package org.apache.hadoop.hdds.scm.container;
import org.apache.hadoop.hdds.scm.container.placement.metrics.SCMNodeMetric;
import org.apache.hadoop.hdds.scm.container.placement.metrics.SCMNodeStat;
import org.apache.hadoop.hdds.scm.node.NodeManager;
import org.apache.hadoop.hdds.scm.node.NodePoolManager;
import org.apache.hadoop.hdfs.protocol.UnregisteredNodeException;
import org.apache.hadoop.hdds.protocol.DatanodeDetails;
import org.apache.hadoop.hdds.protocol.proto.HddsProtos;
@ -272,6 +273,11 @@ public class MockNodeManager implements NodeManager {
return new SCMNodeMetric(nodeMetricMap.get(datanodeDetails.getUuid()));
}
@Override
public NodePoolManager getNodePoolManager() {
return Mockito.mock(NodePoolManager.class);
}
/**
* Used for testing.
*

160
hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/node/TestSCMNodePoolManager.java Normal file
View File

@ -0,0 +1,160 @@
/**
* 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.hdds.scm.node;
import org.apache.commons.collections.ListUtils;
import org.apache.hadoop.fs.FileUtil;
import org.apache.hadoop.hdds.scm.ScmConfigKeys;
import org.apache.hadoop.hdds.scm.TestUtils;
import org.apache.hadoop.hdds.scm.container.placement.algorithms
.ContainerPlacementPolicy;
import org.apache.hadoop.hdds.scm.container.placement.algorithms
.SCMContainerPlacementCapacity;
import org.apache.hadoop.hdds.conf.OzoneConfiguration;
import org.apache.hadoop.hdds.protocol.DatanodeDetails;
import org.apache.hadoop.ozone.OzoneConfigKeys;
import org.apache.hadoop.test.PathUtils;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* Test for SCM node pool manager.
*/
public class TestSCMNodePoolManager {
private static final Logger LOG =
LoggerFactory.getLogger(TestSCMNodePoolManager.class);
@Rule
public ExpectedException thrown = ExpectedException.none();
private final File testDir = PathUtils.getTestDir(
TestSCMNodePoolManager.class);
SCMNodePoolManager createNodePoolManager(OzoneConfiguration conf)
throws IOException {
conf.set(OzoneConfigKeys.OZONE_METADATA_DIRS,
testDir.getAbsolutePath());
conf.setClass(ScmConfigKeys.OZONE_SCM_CONTAINER_PLACEMENT_IMPL_KEY,
SCMContainerPlacementCapacity.class, ContainerPlacementPolicy.class);
return new SCMNodePoolManager(conf);
}
/**
* Test default node pool.
*
* @throws IOException
*/
@Test
public void testDefaultNodePool() throws IOException {
OzoneConfiguration conf = new OzoneConfiguration();
try {
final String defaultPool = "DefaultPool";
NodePoolManager npMgr = createNodePoolManager(conf);
final int nodeCount = 4;
final List<DatanodeDetails> nodes = TestUtils
.getListOfDatanodeDetails(nodeCount);
assertEquals(0, npMgr.getNodePools().size());
for (DatanodeDetails node: nodes) {
npMgr.addNode(defaultPool, node);
}
List<DatanodeDetails> nodesRetrieved = npMgr.getNodes(defaultPool);
assertEquals(nodeCount, nodesRetrieved.size());
assertTwoDatanodeListsEqual(nodes, nodesRetrieved);
DatanodeDetails nodeRemoved = nodes.remove(2);
npMgr.removeNode(defaultPool, nodeRemoved);
List<DatanodeDetails> nodesAfterRemove = npMgr.getNodes(defaultPool);
assertTwoDatanodeListsEqual(nodes, nodesAfterRemove);
List<DatanodeDetails> nonExistSet = npMgr.getNodes("NonExistSet");
assertEquals(0, nonExistSet.size());
} finally {
FileUtil.fullyDelete(testDir);
}
}
/**
* Test default node pool reload.
*
* @throws IOException
*/
@Test
public void testDefaultNodePoolReload() throws IOException {
OzoneConfiguration conf = new OzoneConfiguration();
final String defaultPool = "DefaultPool";
final int nodeCount = 4;
final List<DatanodeDetails> nodes = TestUtils
.getListOfDatanodeDetails(nodeCount);
try {
try {
SCMNodePoolManager npMgr = createNodePoolManager(conf);
assertEquals(0, npMgr.getNodePools().size());
for (DatanodeDetails node : nodes) {
npMgr.addNode(defaultPool, node);
}
List<DatanodeDetails> nodesRetrieved = npMgr.getNodes(defaultPool);
assertEquals(nodeCount, nodesRetrieved.size());
assertTwoDatanodeListsEqual(nodes, nodesRetrieved);
npMgr.close();
} finally {
LOG.info("testDefaultNodePoolReload: Finish adding nodes to pool" +
" and close.");
}
// try reload with a new NodePoolManager instance
try {
SCMNodePoolManager npMgr = createNodePoolManager(conf);
List<DatanodeDetails> nodesRetrieved = npMgr.getNodes(defaultPool);
assertEquals(nodeCount, nodesRetrieved.size());
assertTwoDatanodeListsEqual(nodes, nodesRetrieved);
} finally {
LOG.info("testDefaultNodePoolReload: Finish reloading node pool.");
}
} finally {
FileUtil.fullyDelete(testDir);
}
}
/**
* Compare and verify that two datanode lists are equal.
* @param list1 - datanode list 1.
* @param list2 - datanode list 2.
*/
private void assertTwoDatanodeListsEqual(List<DatanodeDetails> list1,
List<DatanodeDetails> list2) {
assertEquals(list1.size(), list2.size());
Collections.sort(list1);
Collections.sort(list2);
assertTrue(ListUtils.isEqualList(list1, list2));
}
}

5
hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/ozone/container/testutils/ReplicationNodeManagerMock.java
View File

@ -21,6 +21,7 @@ import org.apache.hadoop.hdds.scm.container.placement.metrics.SCMNodeMetric;
import org.apache.hadoop.hdds.scm.container.placement.metrics.SCMNodeStat;
import org.apache.hadoop.hdds.scm.node.CommandQueue;
import org.apache.hadoop.hdds.scm.node.NodeManager;
import org.apache.hadoop.hdds.scm.node.NodePoolManager;
import org.apache.hadoop.hdfs.protocol.UnregisteredNodeException;
import org.apache.hadoop.hdds.protocol.DatanodeDetails;
import org.apache.hadoop.hdds.protocol.proto.HddsProtos.NodeState;
@ -200,6 +201,10 @@ public class ReplicationNodeManagerMock implements NodeManager {
return null;
}
@Override
public NodePoolManager getNodePoolManager() {
return Mockito.mock(NodePoolManager.class);
}
/**
* Wait for the heartbeat is processed by NodeManager.

133
hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/ozone/container/testutils/ReplicationNodePoolManagerMock.java Normal file
View File

@ -0,0 +1,133 @@
/**
* 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.container.testutils;
import org.apache.hadoop.hdds.scm.exceptions.SCMException;
import org.apache.hadoop.hdds.scm.node.NodePoolManager;
import org.apache.hadoop.hdds.protocol.DatanodeDetails;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Pool Manager replication mock.
*/
public class ReplicationNodePoolManagerMock implements NodePoolManager {
private final Map<DatanodeDetails, String> nodeMemberShip;
/**
* A node pool manager for testing.
*/
public ReplicationNodePoolManagerMock() {
nodeMemberShip = new HashMap<>();
}
/**
* Add a node to a node pool.
*
* @param pool - name of the node pool.
* @param node - data node.
*/
@Override
public void addNode(String pool, DatanodeDetails node) {
nodeMemberShip.put(node, pool);
}
/**
* Remove a node from a node pool.
*
* @param pool - name of the node pool.
* @param node - data node.
* @throws SCMException
*/
@Override
public void removeNode(String pool, DatanodeDetails node)
throws SCMException {
nodeMemberShip.remove(node);
}
/**
* Get a list of known node pools.
*
* @return a list of known node pool names or an empty list if not node pool
* is defined.
*/
@Override
public List<String> getNodePools() {
Set<String> poolSet = new HashSet<>();
for (Map.Entry<DatanodeDetails, String> entry : nodeMemberShip.entrySet()) {
poolSet.add(entry.getValue());
}
return new ArrayList<>(poolSet);
}
/**
* Get all nodes of a node pool given the name of the node pool.
*
* @param pool - name of the node pool.
* @return a list of datanode ids or an empty list if the node pool was not
* found.
*/
@Override
public List<DatanodeDetails> getNodes(String pool) {
Set<DatanodeDetails> datanodeSet = new HashSet<>();
for (Map.Entry<DatanodeDetails, String> entry : nodeMemberShip.entrySet()) {
if (entry.getValue().equals(pool)) {
datanodeSet.add(entry.getKey());
}
}
return new ArrayList<>(datanodeSet);
}
/**
* Get the node pool name if the node has been added to a node pool.
*
* @param datanodeDetails DatanodeDetails.
* @return node pool name if it has been assigned. null if the node has not
* been assigned to any node pool yet.
*/
@Override
public String getNodePool(DatanodeDetails datanodeDetails) {
return nodeMemberShip.get(datanodeDetails);
}
/**
* Closes this stream and releases any system resources associated
* with it. If the stream is already closed then invoking this
* method has no effect.
* <p>
* <p> As noted in {@link AutoCloseable#close()}, cases where the
* close may fail require careful attention. It is strongly advised
* to relinquish the underlying resources and to internally
* <em>mark</em> the {@code Closeable} as closed, prior to throwing
* the {@code IOException}.
*
* @throws IOException if an I/O error occurs
*/
@Override
public void close() throws IOException {
}
}

31
hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/scm/TestContainerSQLCli.java
View File

@ -51,9 +51,12 @@ import java.util.Collection;
import java.util.HashMap;
import java.util.UUID;
import static org.apache.hadoop.ozone.OzoneConsts.BLOCK_DB;
import static org.apache.hadoop.ozone.OzoneConsts.SCM_CONTAINER_DB;
import static org.apache.hadoop.ozone.OzoneConsts.KB;
import static org.apache.hadoop.ozone.OzoneConsts.NODEPOOL_DB;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* This class tests the CLI that transforms container into SQLite DB files.
@ -173,6 +176,34 @@ public class TestContainerSQLCli {
}
}
@Test
public void testConvertNodepoolDB() throws Exception {
String dbOutPath = GenericTestUtils.getTempPath(
UUID.randomUUID() + "/out_sql.db");
String dbRootPath = conf.get(OzoneConfigKeys.OZONE_METADATA_DIRS);
String dbPath = dbRootPath + "/" + NODEPOOL_DB;
String[] args = {"-p", dbPath, "-o", dbOutPath};
cli.run(args);
// verify the sqlite db
HashMap<String, String> expectedPool = new HashMap<>();
for (DatanodeDetails dnid : nodeManager.getAllNodes()) {
expectedPool.put(dnid.getUuidString(), "DefaultNodePool");
}
Connection conn = connectDB(dbOutPath);
String sql = "SELECT * FROM nodePool";
ResultSet rs = executeQuery(conn, sql);
while(rs.next()) {
String datanodeUUID = rs.getString("datanodeUUID");
String poolName = rs.getString("poolName");
assertTrue(expectedPool.remove(datanodeUUID).equals(poolName));
}
assertEquals(0, expectedPool.size());
Files.delete(Paths.get(dbOutPath));
}
@Test
public void testConvertContainerDB() throws Exception {
String dbOutPath = GenericTestUtils.getTempPath(

74
hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/scm/cli/SQLCLI.java
View File

@ -19,6 +19,7 @@ package org.apache.hadoop.ozone.scm.cli;
import com.google.common.base.Preconditions;
import com.google.common.primitives.Longs;
import com.google.protobuf.ByteString;
import org.apache.commons.cli.BasicParser;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.Option;
@ -59,11 +60,13 @@ import java.sql.Statement;
import java.util.HashSet;
import java.util.Set;
import static org.apache.hadoop.ozone.OzoneConsts.BLOCK_DB;
import static org.apache.hadoop.ozone.OzoneConsts.CONTAINER_DB_SUFFIX;
import static org.apache.hadoop.ozone.OzoneConsts.KSM_DB_NAME;
import static org.apache.hadoop.ozone.OzoneConsts.KSM_USER_PREFIX;
import static org.apache.hadoop.ozone.OzoneConsts.KSM_BUCKET_PREFIX;
import static org.apache.hadoop.ozone.OzoneConsts.KSM_VOLUME_PREFIX;
import static org.apache.hadoop.ozone.OzoneConsts.NODEPOOL_DB;
import static org.apache.hadoop.ozone.OzoneConsts.OPEN_CONTAINERS_DB;
/**
@ -108,6 +111,15 @@ public class SQLCLI extends Configured implements Tool {
private static final String INSERT_CONTAINER_MEMBERS =
"INSERT INTO containerMembers (containerName, datanodeUUID) " +
"VALUES (\"%s\", \"%s\")";
// for nodepool.db
private static final String CREATE_NODE_POOL =
"CREATE TABLE nodePool (" +
"datanodeUUID TEXT NOT NULL," +
"poolName TEXT NOT NULL," +
"PRIMARY KEY(datanodeUUID, poolName))";
private static final String INSERT_NODE_POOL =
"INSERT INTO nodePool (datanodeUUID, poolName) " +
"VALUES (\"%s\", \"%s\")";
// and reuse CREATE_DATANODE_INFO and INSERT_DATANODE_INFO
// for openContainer.db
private static final String CREATE_OPEN_CONTAINER =
@ -273,6 +285,9 @@ public class SQLCLI extends Configured implements Tool {
if (dbName.toString().endsWith(CONTAINER_DB_SUFFIX)) {
LOG.info("Converting container DB");
convertContainerDB(dbPath, outPath);
} else if (dbName.toString().equals(NODEPOOL_DB)) {
LOG.info("Converting node pool DB");
convertNodePoolDB(dbPath, outPath);
} else if (dbName.toString().equals(OPEN_CONTAINERS_DB)) {
LOG.info("Converting open container DB");
convertOpenContainerDB(dbPath, outPath);
@ -528,7 +543,66 @@ public class SQLCLI extends Configured implements Tool {
}
LOG.info("Insertion completed.");
}
/**
* Converts nodePool.db to sqlite. The schema of sql db:
* two tables, nodePool and datanodeInfo (the same datanode Info as for
* container.db).
*
* nodePool
* ---------------------------------------------------------
* datanodeUUID* | poolName*
* ---------------------------------------------------------
*
* datanodeInfo:
* ---------------------------------------------------------
* hostname | datanodeUUid* | xferPort | ipcPort
* ---------------------------------------------------------
*
* --------------------------------
* |containerPort
* --------------------------------
*
* @param dbPath path to container db.
* @param outPath path to output sqlite
* @throws IOException throws exception.
*/
private void convertNodePoolDB(Path dbPath, Path outPath) throws Exception {
LOG.info("Create table for sql node pool db.");
File dbFile = dbPath.toFile();
try (MetadataStore dbStore = MetadataStoreBuilder.newBuilder()
.setConf(conf).setDbFile(dbFile).build();
Connection conn = connectDB(outPath.toString())) {
executeSQL(conn, CREATE_NODE_POOL);
executeSQL(conn, CREATE_DATANODE_INFO);
dbStore.iterate(null, (key, value) -> {
DatanodeDetails nodeId = DatanodeDetails
.getFromProtoBuf(HddsProtos.DatanodeDetailsProto
.PARSER.parseFrom(key));
String blockPool = DFSUtil.bytes2String(value);
try {
insertNodePoolDB(conn, blockPool, nodeId);
return true;
} catch (SQLException e) {
throw new IOException(e);
}
});
}
}
private void insertNodePoolDB(Connection conn, String blockPool,
DatanodeDetails datanodeDetails) throws SQLException {
String insertNodePool = String.format(INSERT_NODE_POOL,
datanodeDetails.getUuidString(), blockPool);
executeSQL(conn, insertNodePool);
String insertDatanodeDetails = String
.format(INSERT_DATANODE_INFO, datanodeDetails.getHostName(),
datanodeDetails.getUuidString(), datanodeDetails.getIpAddress(),
datanodeDetails.getPort(DatanodeDetails.Port.Name.STANDALONE)
.getValue());
executeSQL(conn, insertDatanodeDetails);
}
/**
* Convert openContainer.db to sqlite db file. This is rather simple db,