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Posted to issues@ozone.apache.org by GitBox <gi...@apache.org> on 2022/06/30 11:02:03 UTC
[GitHub] [ozone] JacksonYao287 opened a new pull request, #3572: HDDS-6960. EC: Implement the Over-replication Handler
JacksonYao287 opened a new pull request, #3572:
URL: https://github.com/apache/ozone/pull/3572
## What changes were proposed in this pull request?
Implement the Over-replication Handler
## What is the link to the Apache JIRA
https://issues.apache.org/jira/browse/HDDS-6960
## How was this patch tested?
unit test
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[GitHub] [ozone] umamaheswararao commented on a diff in pull request #3572: HDDS-6960. EC: Implement the Over-replication Handler
Posted by GitBox <gi...@apache.org>.
umamaheswararao commented on code in PR #3572:
URL: https://github.com/apache/ozone/pull/3572#discussion_r912686443
##########
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/AbstractOverReplicationHandler.java:
##########
@@ -0,0 +1,109 @@
+/*
+ * 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;
+
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.scm.ContainerPlacementStatus;
+import org.apache.hadoop.hdds.scm.PlacementPolicy;
+import org.apache.hadoop.hdds.scm.container.ContainerReplica;
+import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+/**
+ * this class holds some common methods that will be shared among
+ * different kinds of Implementation of OverReplicationHandler.
+ * */
+public abstract class AbstractOverReplicationHandler
+ implements UnhealthyReplicationHandler {
+ private final PlacementPolicy placementPolicy;
+
+ protected AbstractOverReplicationHandler(PlacementPolicy placementPolicy) {
+ this.placementPolicy = placementPolicy;
+ }
+ /**
+ * Identify a new set of datanode(s) to replicate/reconstruct the container
+ * and form the SCM commands to send it to DN.
Review Comment:
Missed to update doc?
##########
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/AbstractOverReplicationHandler.java:
##########
@@ -0,0 +1,109 @@
+/*
+ * 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;
+
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.scm.ContainerPlacementStatus;
+import org.apache.hadoop.hdds.scm.PlacementPolicy;
+import org.apache.hadoop.hdds.scm.container.ContainerReplica;
+import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+/**
+ * this class holds some common methods that will be shared among
Review Comment:
Typos: this --> This
Implementation -> implementation
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[GitHub] [ozone] JacksonYao287 commented on pull request #3572: HDDS-6960. EC: Implement the Over-replication Handler
Posted by GitBox <gi...@apache.org>.
JacksonYao287 commented on PR #3572:
URL: https://github.com/apache/ozone/pull/3572#issuecomment-1174508568
thanks @umamaheswararao for the review! i have committed this patch to master branch
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[GitHub] [ozone] umamaheswararao commented on a diff in pull request #3572: HDDS-6960. EC: Implement the Over-replication Handler
Posted by GitBox <gi...@apache.org>.
umamaheswararao commented on code in PR #3572:
URL: https://github.com/apache/ozone/pull/3572#discussion_r912550235
##########
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/ECOverReplicationHandler.java:
##########
@@ -0,0 +1,173 @@
+/**
+ * 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;
+
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos;
+import org.apache.hadoop.hdds.scm.PlacementPolicy;
+import org.apache.hadoop.hdds.scm.container.ContainerInfo;
+import org.apache.hadoop.hdds.scm.container.ContainerReplica;
+import org.apache.hadoop.hdds.scm.node.NodeManager;
+import org.apache.hadoop.hdds.scm.node.states.NodeNotFoundException;
+import org.apache.hadoop.ozone.protocol.commands.DeleteContainerCommand;
+import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import static java.util.Collections.emptyMap;
+
+/**
+ * Handles the EC Over replication processing and forming the respective SCM
+ * commands.
+ */
+public class ECOverReplicationHandler extends AbstractOverReplicationHandler {
+ public static final Logger LOG =
+ LoggerFactory.getLogger(ECOverReplicationHandler.class);
+
+ private final ECContainerHealthCheck ecContainerHealthCheck =
+ new ECContainerHealthCheck();
+ private final NodeManager nodeManager;
+
+ public ECOverReplicationHandler(PlacementPolicy placementPolicy,
+ NodeManager nodeManager) {
+ super(placementPolicy);
+ this.nodeManager = nodeManager;
+ }
+
+ /**
+ * Identify a new set of datanode(s) to delete the container
+ * and form the SCM commands to send it to DN.
+ *
+ * @param replicas - Set of available container replicas.
+ * @param pendingOps - Inflight replications and deletion ops.
+ * @param result - Health check result.
+ * @param remainingMaintenanceRedundancy - represents that how many nodes go
+ * into maintenance.
+ * @return Returns the key value pair of destination dn where the command gets
+ * executed and the command itself.
+ */
+ @Override
+ public Map<DatanodeDetails, SCMCommand<?>> processAndCreateCommands(
+ Set<ContainerReplica> replicas, List<ContainerReplicaOp> pendingOps,
+ ContainerHealthResult result, int remainingMaintenanceRedundancy) {
+ ContainerInfo container = result.getContainerInfo();
+ ContainerHealthResult currentUnderRepRes = ecContainerHealthCheck
+ .checkHealth(container, replicas, pendingOps,
+ remainingMaintenanceRedundancy);
+ LOG.debug("Handling over-replicated EC container: {}", container);
+
+ //sanity check
+ if (currentUnderRepRes.getHealthState() !=
+ ContainerHealthResult.HealthState.OVER_REPLICATED) {
+ LOG.info("The container {} state changed and it's not in over"
+ + " replication any more. Current state is: {}",
+ container.getContainerID(), currentUnderRepRes);
+ return emptyMap();
+ }
+
+ ContainerHealthResult.OverReplicatedHealthResult containerHealthResult =
+ ((ContainerHealthResult.OverReplicatedHealthResult)
+ currentUnderRepRes);
+ if (containerHealthResult.isSufficientlyReplicatedAfterPending()) {
+ LOG.info("The container {} with replicas {} will be corrected " +
+ "by the pending delete", container.getContainerID(), replicas);
+ return emptyMap();
+ }
+
+ // we don`t support hybrid state(both under and over replicated) for
+ // EC container and we always handle under-replicated first now. it
+ // means when reaching here, we have all the replica indexes and some
+ // of them are more than 1.
+ // TODO: support hybrid state if needed.
+ final ECContainerReplicaCount replicaCount =
+ new ECContainerReplicaCount(container, replicas, pendingOps,
+ remainingMaintenanceRedundancy);
+
+ List<Integer> overReplicatedIndexes =
+ replicaCount.overReplicatedIndexes(true);
+ //sanity check
+ if (overReplicatedIndexes.size() == 0) {
+ LOG.warn("The container {} with replicas {} is found over replicated " +
+ "by ContainerHealthCheck, but found not over replicated by " +
+ "ECContainerReplicaCount",
+ container.getContainerID(), replicas);
+ return emptyMap();
+ }
+
+ final List<DatanodeDetails> deletionInFlight = new ArrayList<>();
+ for (ContainerReplicaOp op : pendingOps) {
+ if (op.getOpType() == ContainerReplicaOp.PendingOpType.DELETE) {
+ deletionInFlight.add(op.getTarget());
+ }
+ }
+ Map<Integer, List<ContainerReplica>> index2replicas = new HashMap<>();
+ replicas.stream()
+ .filter(r -> overReplicatedIndexes.contains(r.getReplicaIndex()))
+ .filter(r -> r
+ .getState() == StorageContainerDatanodeProtocolProtos
+ .ContainerReplicaProto.State.CLOSED)
+ .filter(r -> {
+ DatanodeDetails dd = r.getDatanodeDetails();
+ try {
Review Comment:
ReplicationManager has a static method to check the status. Let's use that?
ReplicationManager
.getNodeStatus(r.getDatanodeDetails(), nodeManager).isHealthy())
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[GitHub] [ozone] JacksonYao287 commented on a diff in pull request #3572: HDDS-6960. EC: Implement the Over-replication Handler
Posted by GitBox <gi...@apache.org>.
JacksonYao287 commented on code in PR #3572:
URL: https://github.com/apache/ozone/pull/3572#discussion_r912428114
##########
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/ECUnderReplicationHandler.java:
##########
@@ -51,7 +50,7 @@
* Handles the EC Under replication processing and forming the respective SCM
* commands.
*/
-public class ECUnderReplicationHandler implements UnderReplicationHandler {
+public class ECUnderReplicationHandler implements UnhealthyReplicationHandler {
Review Comment:
`ReplicationHandler` seems a little confusing, it might be considered as the handler to handle replication command.
so i suggest we use `unhealthy` just for now and change it to an appropriate name after we find a proper one. what about "nonOptimalReplicationHandler"
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[GitHub] [ozone] JacksonYao287 commented on pull request #3572: HDDS-6960. EC: Implement the Over-replication Handler
Posted by GitBox <gi...@apache.org>.
JacksonYao287 commented on PR #3572:
URL: https://github.com/apache/ozone/pull/3572#issuecomment-1173275872
Thanks @umamaheswararao for the review , i have update this patch according to your comments, pleas take a look
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[GitHub] [ozone] JacksonYao287 commented on pull request #3572: HDDS-6960. EC: Implement the Over-replication Handler
Posted by GitBox <gi...@apache.org>.
JacksonYao287 commented on PR #3572:
URL: https://github.com/apache/ozone/pull/3572#issuecomment-1172988635
@umamaheswararao thanks for the review, will fix the comments later
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[GitHub] [ozone] JacksonYao287 merged pull request #3572: HDDS-6960. EC: Implement the Over-replication Handler
Posted by GitBox <gi...@apache.org>.
JacksonYao287 merged PR #3572:
URL: https://github.com/apache/ozone/pull/3572
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[GitHub] [ozone] umamaheswararao commented on a diff in pull request #3572: HDDS-6960. EC: Implement the Over-replication Handler
Posted by GitBox <gi...@apache.org>.
umamaheswararao commented on code in PR #3572:
URL: https://github.com/apache/ozone/pull/3572#discussion_r912403332
##########
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/ECOverReplicationHandler.java:
##########
@@ -0,0 +1,178 @@
+/**
+ * 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;
+
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos;
+import org.apache.hadoop.hdds.scm.PlacementPolicy;
+import org.apache.hadoop.hdds.scm.container.ContainerInfo;
+import org.apache.hadoop.hdds.scm.container.ContainerReplica;
+import org.apache.hadoop.hdds.scm.node.NodeManager;
+import org.apache.hadoop.hdds.scm.node.NodeStatus;
+import org.apache.hadoop.hdds.scm.node.states.NodeNotFoundException;
+import org.apache.hadoop.ozone.protocol.commands.DeleteContainerCommand;
+import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import static java.util.Collections.emptyMap;
+
+/**
+ * Handles the EC Over replication processing and forming the respective SCM
+ * commands.
+ */
+public class ECOverReplicationHandler extends AbstractOverReplicationHandler {
+ public static final Logger LOG =
+ LoggerFactory.getLogger(ECOverReplicationHandler.class);
+
+ private final ECContainerHealthCheck ecContainerHealthCheck =
+ new ECContainerHealthCheck();
+ private final NodeManager nodeManager;
+
+ public ECOverReplicationHandler(PlacementPolicy placementPolicy,
+ NodeManager nodeManager) {
+ super(placementPolicy);
+ this.nodeManager = nodeManager;
+ }
+
+ /**
+ * Identify a new set of datanode(s) to replicate/reconstruct the container
+ * and form the SCM commands to send it to DN.
+ *
+ * @param replicas - Set of available container replicas.
+ * @param pendingOps - Inflight replications and deletion ops.
+ * @param result - Health check result.
+ * @param remainingMaintenanceRedundancy - represents that how many nodes go
+ * into maintenance.
+ * @return Returns the key value pair of destination dn where the command gets
+ * executed and the command itself.
+ */
+ @Override
+ public Map<DatanodeDetails, SCMCommand<?>> processAndCreateCommands(
+ Set<ContainerReplica> replicas, List<ContainerReplicaOp> pendingOps,
+ ContainerHealthResult result, int remainingMaintenanceRedundancy) {
+ ContainerInfo container = result.getContainerInfo();
+ ContainerHealthResult currentUnderRepRes = ecContainerHealthCheck
+ .checkHealth(container, replicas, pendingOps,
+ remainingMaintenanceRedundancy);
+ LOG.debug("Handling over-replicated EC container: {}", container);
+
+ //sanity check
+ if (currentUnderRepRes.getHealthState() !=
+ ContainerHealthResult.HealthState.OVER_REPLICATED) {
+ LOG.info("The container {} state changed and it's not in over"
+ + " replication any more. Current state is: {}",
+ container.getContainerID(), currentUnderRepRes);
+ return emptyMap();
+ }
+
+ ContainerHealthResult.OverReplicatedHealthResult containerHealthResult =
+ ((ContainerHealthResult.OverReplicatedHealthResult)
+ currentUnderRepRes);
+ if (containerHealthResult.isSufficientlyReplicatedAfterPending()) {
+ LOG.info("The container {} with replicas {} will be corrected " +
+ "by the pending delete", container.getContainerID(), replicas);
+ return emptyMap();
+ }
+
+ // we don`t support hybrid state(both under and over replicated) for
+ // EC container , and we always handle under-replicated first now. it
+ // means when reaching here, we have all the replica indexes and some
+ // of them are more than 1.
+ // TODO: support hybrid state if needed.
Review Comment:
remove this empty line
##########
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/ECOverReplicationHandler.java:
##########
@@ -0,0 +1,178 @@
+/**
+ * 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;
+
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos;
+import org.apache.hadoop.hdds.scm.PlacementPolicy;
+import org.apache.hadoop.hdds.scm.container.ContainerInfo;
+import org.apache.hadoop.hdds.scm.container.ContainerReplica;
+import org.apache.hadoop.hdds.scm.node.NodeManager;
+import org.apache.hadoop.hdds.scm.node.NodeStatus;
+import org.apache.hadoop.hdds.scm.node.states.NodeNotFoundException;
+import org.apache.hadoop.ozone.protocol.commands.DeleteContainerCommand;
+import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import static java.util.Collections.emptyMap;
+
+/**
+ * Handles the EC Over replication processing and forming the respective SCM
+ * commands.
+ */
+public class ECOverReplicationHandler extends AbstractOverReplicationHandler {
+ public static final Logger LOG =
+ LoggerFactory.getLogger(ECOverReplicationHandler.class);
+
+ private final ECContainerHealthCheck ecContainerHealthCheck =
+ new ECContainerHealthCheck();
+ private final NodeManager nodeManager;
+
+ public ECOverReplicationHandler(PlacementPolicy placementPolicy,
+ NodeManager nodeManager) {
+ super(placementPolicy);
+ this.nodeManager = nodeManager;
+ }
+
+ /**
+ * Identify a new set of datanode(s) to replicate/reconstruct the container
+ * and form the SCM commands to send it to DN.
+ *
+ * @param replicas - Set of available container replicas.
+ * @param pendingOps - Inflight replications and deletion ops.
+ * @param result - Health check result.
+ * @param remainingMaintenanceRedundancy - represents that how many nodes go
+ * into maintenance.
+ * @return Returns the key value pair of destination dn where the command gets
+ * executed and the command itself.
+ */
+ @Override
+ public Map<DatanodeDetails, SCMCommand<?>> processAndCreateCommands(
+ Set<ContainerReplica> replicas, List<ContainerReplicaOp> pendingOps,
+ ContainerHealthResult result, int remainingMaintenanceRedundancy) {
+ ContainerInfo container = result.getContainerInfo();
+ ContainerHealthResult currentUnderRepRes = ecContainerHealthCheck
+ .checkHealth(container, replicas, pendingOps,
+ remainingMaintenanceRedundancy);
+ LOG.debug("Handling over-replicated EC container: {}", container);
+
+ //sanity check
+ if (currentUnderRepRes.getHealthState() !=
+ ContainerHealthResult.HealthState.OVER_REPLICATED) {
+ LOG.info("The container {} state changed and it's not in over"
+ + " replication any more. Current state is: {}",
+ container.getContainerID(), currentUnderRepRes);
+ return emptyMap();
+ }
+
+ ContainerHealthResult.OverReplicatedHealthResult containerHealthResult =
+ ((ContainerHealthResult.OverReplicatedHealthResult)
+ currentUnderRepRes);
+ if (containerHealthResult.isSufficientlyReplicatedAfterPending()) {
+ LOG.info("The container {} with replicas {} will be corrected " +
+ "by the pending delete", container.getContainerID(), replicas);
+ return emptyMap();
+ }
+
+ // we don`t support hybrid state(both under and over replicated) for
Review Comment:
typo: EC container , --> EC container,
##########
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/ECOverReplicationHandler.java:
##########
@@ -0,0 +1,178 @@
+/**
+ * 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;
+
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos;
+import org.apache.hadoop.hdds.scm.PlacementPolicy;
+import org.apache.hadoop.hdds.scm.container.ContainerInfo;
+import org.apache.hadoop.hdds.scm.container.ContainerReplica;
+import org.apache.hadoop.hdds.scm.node.NodeManager;
+import org.apache.hadoop.hdds.scm.node.NodeStatus;
+import org.apache.hadoop.hdds.scm.node.states.NodeNotFoundException;
+import org.apache.hadoop.ozone.protocol.commands.DeleteContainerCommand;
+import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import static java.util.Collections.emptyMap;
+
+/**
+ * Handles the EC Over replication processing and forming the respective SCM
+ * commands.
+ */
+public class ECOverReplicationHandler extends AbstractOverReplicationHandler {
+ public static final Logger LOG =
+ LoggerFactory.getLogger(ECOverReplicationHandler.class);
+
+ private final ECContainerHealthCheck ecContainerHealthCheck =
+ new ECContainerHealthCheck();
+ private final NodeManager nodeManager;
+
+ public ECOverReplicationHandler(PlacementPolicy placementPolicy,
+ NodeManager nodeManager) {
+ super(placementPolicy);
+ this.nodeManager = nodeManager;
+ }
+
+ /**
+ * Identify a new set of datanode(s) to replicate/reconstruct the container
+ * and form the SCM commands to send it to DN.
+ *
+ * @param replicas - Set of available container replicas.
+ * @param pendingOps - Inflight replications and deletion ops.
+ * @param result - Health check result.
+ * @param remainingMaintenanceRedundancy - represents that how many nodes go
+ * into maintenance.
+ * @return Returns the key value pair of destination dn where the command gets
+ * executed and the command itself.
+ */
+ @Override
+ public Map<DatanodeDetails, SCMCommand<?>> processAndCreateCommands(
+ Set<ContainerReplica> replicas, List<ContainerReplicaOp> pendingOps,
+ ContainerHealthResult result, int remainingMaintenanceRedundancy) {
+ ContainerInfo container = result.getContainerInfo();
+ ContainerHealthResult currentUnderRepRes = ecContainerHealthCheck
+ .checkHealth(container, replicas, pendingOps,
+ remainingMaintenanceRedundancy);
+ LOG.debug("Handling over-replicated EC container: {}", container);
+
+ //sanity check
+ if (currentUnderRepRes.getHealthState() !=
+ ContainerHealthResult.HealthState.OVER_REPLICATED) {
+ LOG.info("The container {} state changed and it's not in over"
+ + " replication any more. Current state is: {}",
+ container.getContainerID(), currentUnderRepRes);
+ return emptyMap();
+ }
+
+ ContainerHealthResult.OverReplicatedHealthResult containerHealthResult =
+ ((ContainerHealthResult.OverReplicatedHealthResult)
+ currentUnderRepRes);
+ if (containerHealthResult.isSufficientlyReplicatedAfterPending()) {
+ LOG.info("The container {} with replicas {} will be corrected " +
+ "by the pending delete", container.getContainerID(), replicas);
+ return emptyMap();
+ }
+
+ // we don`t support hybrid state(both under and over replicated) for
+ // EC container , and we always handle under-replicated first now. it
+ // means when reaching here, we have all the replica indexes and some
+ // of them are more than 1.
+ // TODO: support hybrid state if needed.
+
+ final ECContainerReplicaCount replicaCount =
+ new ECContainerReplicaCount(container, replicas, pendingOps,
+ remainingMaintenanceRedundancy);
+
+ List<Integer> overReplicatedIndexes =
+ replicaCount.overReplicatedIndexes(true);
+ //sanity check
+ if (overReplicatedIndexes.size() == 0) {
+ LOG.warn("The container {} with replicas {} is found over replicated " +
+ "by ContainerHealthCheck, but found not over replicated by " +
+ "ECContainerReplicaCount",
+ container.getContainerID(), replicas);
+ return emptyMap();
+ }
+
+ final List<DatanodeDetails> deletionInFlight = new ArrayList<>();
+ for (ContainerReplicaOp op : pendingOps) {
+ if (op.getOpType() == ContainerReplicaOp.PendingOpType.DELETE) {
+ deletionInFlight.add(op.getTarget());
+ }
+ }
+ Map<Integer, List<ContainerReplica>> index2replicas = new HashMap<>();
+ replicas.stream()
+ .filter(r -> overReplicatedIndexes.contains(r.getReplicaIndex()))
+ .filter(r -> r
+ .getState() == StorageContainerDatanodeProtocolProtos
+ .ContainerReplicaProto.State.CLOSED)
+ .filter(r -> {
+ DatanodeDetails dd = r.getDatanodeDetails();
+ try {
+ //the command target node should be in-service and healthy
+ return nodeManager.getNodeStatus(dd)
+ .equals(NodeStatus.inServiceHealthy());
+ } catch (NodeNotFoundException nnfe) {
+ //nothing to do, just skip;
+ LOG.warn("can not find node when getting NodeStatus, {}", dd);
+ return false;
+ }
+ }).filter(r -> !deletionInFlight.contains(r.getDatanodeDetails()))
+ .forEach(r -> {
+ int index = r.getReplicaIndex();
+ index2replicas.computeIfAbsent(index, k -> new LinkedList<>());
+ index2replicas.get(index).add(r);
+ });
+
+ if (index2replicas.size() > 0) {
+ final Map<DatanodeDetails, SCMCommand<?>> commands = new HashMap<>();
+ final int replicationFactor =
+ container.getReplicationConfig().getRequiredNodes();
+ index2replicas.values().forEach(l -> {
+ Iterator<ContainerReplica> it = l.iterator();
+ Set<ContainerReplica> tempReplicaSet = new HashSet<>();
Review Comment:
we can pass replicas into ctor ot HashSet ?
##########
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/ECOverReplicationHandler.java:
##########
@@ -0,0 +1,178 @@
+/**
+ * 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;
+
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos;
+import org.apache.hadoop.hdds.scm.PlacementPolicy;
+import org.apache.hadoop.hdds.scm.container.ContainerInfo;
+import org.apache.hadoop.hdds.scm.container.ContainerReplica;
+import org.apache.hadoop.hdds.scm.node.NodeManager;
+import org.apache.hadoop.hdds.scm.node.NodeStatus;
+import org.apache.hadoop.hdds.scm.node.states.NodeNotFoundException;
+import org.apache.hadoop.ozone.protocol.commands.DeleteContainerCommand;
+import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import static java.util.Collections.emptyMap;
+
+/**
+ * Handles the EC Over replication processing and forming the respective SCM
+ * commands.
+ */
+public class ECOverReplicationHandler extends AbstractOverReplicationHandler {
+ public static final Logger LOG =
+ LoggerFactory.getLogger(ECOverReplicationHandler.class);
+
+ private final ECContainerHealthCheck ecContainerHealthCheck =
+ new ECContainerHealthCheck();
+ private final NodeManager nodeManager;
+
+ public ECOverReplicationHandler(PlacementPolicy placementPolicy,
+ NodeManager nodeManager) {
+ super(placementPolicy);
+ this.nodeManager = nodeManager;
+ }
+
+ /**
+ * Identify a new set of datanode(s) to replicate/reconstruct the container
+ * and form the SCM commands to send it to DN.
+ *
+ * @param replicas - Set of available container replicas.
+ * @param pendingOps - Inflight replications and deletion ops.
+ * @param result - Health check result.
+ * @param remainingMaintenanceRedundancy - represents that how many nodes go
+ * into maintenance.
+ * @return Returns the key value pair of destination dn where the command gets
+ * executed and the command itself.
+ */
+ @Override
+ public Map<DatanodeDetails, SCMCommand<?>> processAndCreateCommands(
+ Set<ContainerReplica> replicas, List<ContainerReplicaOp> pendingOps,
+ ContainerHealthResult result, int remainingMaintenanceRedundancy) {
+ ContainerInfo container = result.getContainerInfo();
+ ContainerHealthResult currentUnderRepRes = ecContainerHealthCheck
+ .checkHealth(container, replicas, pendingOps,
+ remainingMaintenanceRedundancy);
+ LOG.debug("Handling over-replicated EC container: {}", container);
+
+ //sanity check
+ if (currentUnderRepRes.getHealthState() !=
+ ContainerHealthResult.HealthState.OVER_REPLICATED) {
+ LOG.info("The container {} state changed and it's not in over"
+ + " replication any more. Current state is: {}",
+ container.getContainerID(), currentUnderRepRes);
+ return emptyMap();
+ }
+
+ ContainerHealthResult.OverReplicatedHealthResult containerHealthResult =
+ ((ContainerHealthResult.OverReplicatedHealthResult)
+ currentUnderRepRes);
+ if (containerHealthResult.isSufficientlyReplicatedAfterPending()) {
+ LOG.info("The container {} with replicas {} will be corrected " +
+ "by the pending delete", container.getContainerID(), replicas);
+ return emptyMap();
+ }
+
+ // we don`t support hybrid state(both under and over replicated) for
+ // EC container , and we always handle under-replicated first now. it
+ // means when reaching here, we have all the replica indexes and some
+ // of them are more than 1.
+ // TODO: support hybrid state if needed.
+
+ final ECContainerReplicaCount replicaCount =
+ new ECContainerReplicaCount(container, replicas, pendingOps,
+ remainingMaintenanceRedundancy);
+
+ List<Integer> overReplicatedIndexes =
+ replicaCount.overReplicatedIndexes(true);
+ //sanity check
+ if (overReplicatedIndexes.size() == 0) {
+ LOG.warn("The container {} with replicas {} is found over replicated " +
+ "by ContainerHealthCheck, but found not over replicated by " +
+ "ECContainerReplicaCount",
+ container.getContainerID(), replicas);
+ return emptyMap();
+ }
+
+ final List<DatanodeDetails> deletionInFlight = new ArrayList<>();
+ for (ContainerReplicaOp op : pendingOps) {
+ if (op.getOpType() == ContainerReplicaOp.PendingOpType.DELETE) {
+ deletionInFlight.add(op.getTarget());
+ }
+ }
+ Map<Integer, List<ContainerReplica>> index2replicas = new HashMap<>();
+ replicas.stream()
+ .filter(r -> overReplicatedIndexes.contains(r.getReplicaIndex()))
+ .filter(r -> r
+ .getState() == StorageContainerDatanodeProtocolProtos
+ .ContainerReplicaProto.State.CLOSED)
+ .filter(r -> {
+ DatanodeDetails dd = r.getDatanodeDetails();
+ try {
+ //the command target node should be in-service and healthy
+ return nodeManager.getNodeStatus(dd)
+ .equals(NodeStatus.inServiceHealthy());
+ } catch (NodeNotFoundException nnfe) {
+ //nothing to do, just skip;
+ LOG.warn("can not find node when getting NodeStatus, {}", dd);
+ return false;
+ }
+ }).filter(r -> !deletionInFlight.contains(r.getDatanodeDetails()))
+ .forEach(r -> {
+ int index = r.getReplicaIndex();
+ index2replicas.computeIfAbsent(index, k -> new LinkedList<>());
+ index2replicas.get(index).add(r);
+ });
+
+ if (index2replicas.size() > 0) {
+ final Map<DatanodeDetails, SCMCommand<?>> commands = new HashMap<>();
+ final int replicationFactor =
+ container.getReplicationConfig().getRequiredNodes();
+ index2replicas.values().forEach(l -> {
+ Iterator<ContainerReplica> it = l.iterator();
+ Set<ContainerReplica> tempReplicaSet = new HashSet<>();
+ tempReplicaSet.addAll(replicas);
+ for (; it.hasNext() && l.size() > 1;) {
Review Comment:
This could be while?
##########
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/ECOverReplicationHandler.java:
##########
@@ -0,0 +1,178 @@
+/**
+ * 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;
+
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos;
+import org.apache.hadoop.hdds.scm.PlacementPolicy;
+import org.apache.hadoop.hdds.scm.container.ContainerInfo;
+import org.apache.hadoop.hdds.scm.container.ContainerReplica;
+import org.apache.hadoop.hdds.scm.node.NodeManager;
+import org.apache.hadoop.hdds.scm.node.NodeStatus;
+import org.apache.hadoop.hdds.scm.node.states.NodeNotFoundException;
+import org.apache.hadoop.ozone.protocol.commands.DeleteContainerCommand;
+import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import static java.util.Collections.emptyMap;
+
+/**
+ * Handles the EC Over replication processing and forming the respective SCM
+ * commands.
+ */
+public class ECOverReplicationHandler extends AbstractOverReplicationHandler {
+ public static final Logger LOG =
+ LoggerFactory.getLogger(ECOverReplicationHandler.class);
+
+ private final ECContainerHealthCheck ecContainerHealthCheck =
+ new ECContainerHealthCheck();
+ private final NodeManager nodeManager;
+
+ public ECOverReplicationHandler(PlacementPolicy placementPolicy,
+ NodeManager nodeManager) {
+ super(placementPolicy);
+ this.nodeManager = nodeManager;
+ }
+
+ /**
+ * Identify a new set of datanode(s) to replicate/reconstruct the container
+ * and form the SCM commands to send it to DN.
Review Comment:
Please fix this. This will generate only delete command, but not replicate/reconstruct commands.
##########
hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/container/replication/TestECOverReplicationHandler.java:
##########
@@ -0,0 +1,183 @@
+/**
+ * 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.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import org.apache.commons.lang3.tuple.Pair;
+import org.apache.hadoop.hdds.client.ECReplicationConfig;
+import org.apache.hadoop.hdds.conf.OzoneConfiguration;
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.protocol.MockDatanodeDetails;
+import org.apache.hadoop.hdds.protocol.proto.HddsProtos;
+import org.apache.hadoop.hdds.scm.PlacementPolicy;
+import org.apache.hadoop.hdds.scm.SCMCommonPlacementPolicy;
+import org.apache.hadoop.hdds.scm.container.ContainerInfo;
+import org.apache.hadoop.hdds.scm.container.ContainerReplica;
+import org.apache.hadoop.hdds.scm.container.MockNodeManager;
+import org.apache.hadoop.hdds.scm.exceptions.SCMException;
+import org.apache.hadoop.hdds.scm.net.NodeSchema;
+import org.apache.hadoop.hdds.scm.net.NodeSchemaManager;
+import org.apache.hadoop.hdds.scm.node.NodeManager;
+import org.apache.hadoop.hdds.scm.node.NodeStatus;
+import org.apache.hadoop.hdds.scm.node.states.NodeNotFoundException;
+import org.apache.hadoop.ozone.container.common.SCMTestUtils;
+import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
+import org.junit.Assert;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import static org.apache.hadoop.hdds.protocol.proto.HddsProtos.NodeOperationalState.IN_SERVICE;
+import static org.apache.hadoop.hdds.scm.net.NetConstants.LEAF_SCHEMA;
+import static org.apache.hadoop.hdds.scm.net.NetConstants.RACK_SCHEMA;
+import static org.apache.hadoop.hdds.scm.net.NetConstants.ROOT_SCHEMA;
+
+/**
+ * Tests the ECOverReplicationHandling functionality.
+ */
+public class TestECOverReplicationHandler {
+ private ECReplicationConfig repConfig;
+ private ContainerInfo container;
+ private NodeManager nodeManager;
+ private OzoneConfiguration conf;
+ private PlacementPolicy policy;
+
+ @BeforeEach
+ public void setup() {
+ nodeManager = new MockNodeManager(true, 10) {
+ @Override
+ public NodeStatus getNodeStatus(DatanodeDetails dd)
+ throws NodeNotFoundException {
+ return NodeStatus.inServiceHealthy();
+ }
+ };
+ conf = SCMTestUtils.getConf();
+ repConfig = new ECReplicationConfig(3, 2);
+ container = ReplicationTestUtil
+ .createContainer(HddsProtos.LifeCycleState.CLOSED, repConfig);
+ policy = new SCMCommonPlacementPolicy(nodeManager, conf) {
+ @Override
+ public List<DatanodeDetails> chooseDatanodes(
+ List<DatanodeDetails> excludedNodes,
+ List<DatanodeDetails> favoredNodes, int nodesRequiredToChoose,
+ long metadataSizeRequired, long dataSizeRequired)
+ throws SCMException {
+ List<DatanodeDetails> dns = new ArrayList<>();
+ for (int i = 0; i < nodesRequiredToChoose; i++) {
+ dns.add(MockDatanodeDetails.randomDatanodeDetails());
+ }
+ return dns;
+ }
+
+ @Override
+ public DatanodeDetails chooseNode(List<DatanodeDetails> healthyNodes) {
+ return null;
+ }
+ };
+ NodeSchema[] schemas =
+ new NodeSchema[] {ROOT_SCHEMA, RACK_SCHEMA, LEAF_SCHEMA};
+ NodeSchemaManager.getInstance().init(schemas, true);
+ }
+
+ @Test
Review Comment:
May be we can use parameterized tests for the following tests? I think we can do parameterized for TestUnderRplicationHandler also, but we can do that later as that was already committed.
##########
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/ECOverReplicationHandler.java:
##########
@@ -0,0 +1,178 @@
+/**
+ * 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;
+
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos;
+import org.apache.hadoop.hdds.scm.PlacementPolicy;
+import org.apache.hadoop.hdds.scm.container.ContainerInfo;
+import org.apache.hadoop.hdds.scm.container.ContainerReplica;
+import org.apache.hadoop.hdds.scm.node.NodeManager;
+import org.apache.hadoop.hdds.scm.node.NodeStatus;
+import org.apache.hadoop.hdds.scm.node.states.NodeNotFoundException;
+import org.apache.hadoop.ozone.protocol.commands.DeleteContainerCommand;
+import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import static java.util.Collections.emptyMap;
+
+/**
+ * Handles the EC Over replication processing and forming the respective SCM
+ * commands.
+ */
+public class ECOverReplicationHandler extends AbstractOverReplicationHandler {
+ public static final Logger LOG =
+ LoggerFactory.getLogger(ECOverReplicationHandler.class);
+
+ private final ECContainerHealthCheck ecContainerHealthCheck =
+ new ECContainerHealthCheck();
+ private final NodeManager nodeManager;
+
+ public ECOverReplicationHandler(PlacementPolicy placementPolicy,
+ NodeManager nodeManager) {
+ super(placementPolicy);
+ this.nodeManager = nodeManager;
+ }
+
+ /**
+ * Identify a new set of datanode(s) to replicate/reconstruct the container
+ * and form the SCM commands to send it to DN.
+ *
+ * @param replicas - Set of available container replicas.
+ * @param pendingOps - Inflight replications and deletion ops.
+ * @param result - Health check result.
+ * @param remainingMaintenanceRedundancy - represents that how many nodes go
+ * into maintenance.
+ * @return Returns the key value pair of destination dn where the command gets
+ * executed and the command itself.
+ */
+ @Override
+ public Map<DatanodeDetails, SCMCommand<?>> processAndCreateCommands(
+ Set<ContainerReplica> replicas, List<ContainerReplicaOp> pendingOps,
+ ContainerHealthResult result, int remainingMaintenanceRedundancy) {
+ ContainerInfo container = result.getContainerInfo();
+ ContainerHealthResult currentUnderRepRes = ecContainerHealthCheck
+ .checkHealth(container, replicas, pendingOps,
+ remainingMaintenanceRedundancy);
+ LOG.debug("Handling over-replicated EC container: {}", container);
+
+ //sanity check
+ if (currentUnderRepRes.getHealthState() !=
+ ContainerHealthResult.HealthState.OVER_REPLICATED) {
+ LOG.info("The container {} state changed and it's not in over"
+ + " replication any more. Current state is: {}",
+ container.getContainerID(), currentUnderRepRes);
+ return emptyMap();
+ }
+
+ ContainerHealthResult.OverReplicatedHealthResult containerHealthResult =
+ ((ContainerHealthResult.OverReplicatedHealthResult)
+ currentUnderRepRes);
+ if (containerHealthResult.isSufficientlyReplicatedAfterPending()) {
+ LOG.info("The container {} with replicas {} will be corrected " +
+ "by the pending delete", container.getContainerID(), replicas);
+ return emptyMap();
+ }
+
+ // we don`t support hybrid state(both under and over replicated) for
+ // EC container , and we always handle under-replicated first now. it
+ // means when reaching here, we have all the replica indexes and some
+ // of them are more than 1.
+ // TODO: support hybrid state if needed.
+
+ final ECContainerReplicaCount replicaCount =
+ new ECContainerReplicaCount(container, replicas, pendingOps,
+ remainingMaintenanceRedundancy);
+
+ List<Integer> overReplicatedIndexes =
+ replicaCount.overReplicatedIndexes(true);
+ //sanity check
+ if (overReplicatedIndexes.size() == 0) {
+ LOG.warn("The container {} with replicas {} is found over replicated " +
+ "by ContainerHealthCheck, but found not over replicated by " +
+ "ECContainerReplicaCount",
+ container.getContainerID(), replicas);
+ return emptyMap();
+ }
+
+ final List<DatanodeDetails> deletionInFlight = new ArrayList<>();
+ for (ContainerReplicaOp op : pendingOps) {
+ if (op.getOpType() == ContainerReplicaOp.PendingOpType.DELETE) {
+ deletionInFlight.add(op.getTarget());
+ }
+ }
+ Map<Integer, List<ContainerReplica>> index2replicas = new HashMap<>();
+ replicas.stream()
+ .filter(r -> overReplicatedIndexes.contains(r.getReplicaIndex()))
+ .filter(r -> r
+ .getState() == StorageContainerDatanodeProtocolProtos
+ .ContainerReplicaProto.State.CLOSED)
+ .filter(r -> {
+ DatanodeDetails dd = r.getDatanodeDetails();
+ try {
+ //the command target node should be in-service and healthy
+ return nodeManager.getNodeStatus(dd)
+ .equals(NodeStatus.inServiceHealthy());
Review Comment:
I think we discussed this. This is not covering healthy_readonly?
##########
hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/container/replication/TestECOverReplicationHandler.java:
##########
@@ -0,0 +1,183 @@
+/**
+ * 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.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import org.apache.commons.lang3.tuple.Pair;
+import org.apache.hadoop.hdds.client.ECReplicationConfig;
+import org.apache.hadoop.hdds.conf.OzoneConfiguration;
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.protocol.MockDatanodeDetails;
+import org.apache.hadoop.hdds.protocol.proto.HddsProtos;
+import org.apache.hadoop.hdds.scm.PlacementPolicy;
+import org.apache.hadoop.hdds.scm.SCMCommonPlacementPolicy;
+import org.apache.hadoop.hdds.scm.container.ContainerInfo;
+import org.apache.hadoop.hdds.scm.container.ContainerReplica;
+import org.apache.hadoop.hdds.scm.container.MockNodeManager;
+import org.apache.hadoop.hdds.scm.exceptions.SCMException;
+import org.apache.hadoop.hdds.scm.net.NodeSchema;
+import org.apache.hadoop.hdds.scm.net.NodeSchemaManager;
+import org.apache.hadoop.hdds.scm.node.NodeManager;
+import org.apache.hadoop.hdds.scm.node.NodeStatus;
+import org.apache.hadoop.hdds.scm.node.states.NodeNotFoundException;
+import org.apache.hadoop.ozone.container.common.SCMTestUtils;
+import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
+import org.junit.Assert;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import static org.apache.hadoop.hdds.protocol.proto.HddsProtos.NodeOperationalState.IN_SERVICE;
+import static org.apache.hadoop.hdds.scm.net.NetConstants.LEAF_SCHEMA;
+import static org.apache.hadoop.hdds.scm.net.NetConstants.RACK_SCHEMA;
+import static org.apache.hadoop.hdds.scm.net.NetConstants.ROOT_SCHEMA;
+
+/**
+ * Tests the ECOverReplicationHandling functionality.
+ */
+public class TestECOverReplicationHandler {
+ private ECReplicationConfig repConfig;
+ private ContainerInfo container;
+ private NodeManager nodeManager;
+ private OzoneConfiguration conf;
+ private PlacementPolicy policy;
+
+ @BeforeEach
+ public void setup() {
+ nodeManager = new MockNodeManager(true, 10) {
+ @Override
+ public NodeStatus getNodeStatus(DatanodeDetails dd)
+ throws NodeNotFoundException {
+ return NodeStatus.inServiceHealthy();
+ }
+ };
+ conf = SCMTestUtils.getConf();
+ repConfig = new ECReplicationConfig(3, 2);
+ container = ReplicationTestUtil
+ .createContainer(HddsProtos.LifeCycleState.CLOSED, repConfig);
Review Comment:
May be something like getSimpleTestPlacementPolicy
##########
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/ECUnderReplicationHandler.java:
##########
@@ -51,7 +50,7 @@
* Handles the EC Under replication processing and forming the respective SCM
* commands.
*/
-public class ECUnderReplicationHandler implements UnderReplicationHandler {
+public class ECUnderReplicationHandler implements UnhealthyReplicationHandler {
Review Comment:
Not sure we will call over replication as unhealthy. Don't have better name in my mind but how about simply ReplicationHandler ?
Since it is common class now, javadoc should represent the generic message. Currently it assumed for underReplication handler.
##########
hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/container/replication/TestECOverReplicationHandler.java:
##########
@@ -0,0 +1,183 @@
+/**
+ * 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.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import org.apache.commons.lang3.tuple.Pair;
+import org.apache.hadoop.hdds.client.ECReplicationConfig;
+import org.apache.hadoop.hdds.conf.OzoneConfiguration;
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.protocol.MockDatanodeDetails;
+import org.apache.hadoop.hdds.protocol.proto.HddsProtos;
+import org.apache.hadoop.hdds.scm.PlacementPolicy;
+import org.apache.hadoop.hdds.scm.SCMCommonPlacementPolicy;
+import org.apache.hadoop.hdds.scm.container.ContainerInfo;
+import org.apache.hadoop.hdds.scm.container.ContainerReplica;
+import org.apache.hadoop.hdds.scm.container.MockNodeManager;
+import org.apache.hadoop.hdds.scm.exceptions.SCMException;
+import org.apache.hadoop.hdds.scm.net.NodeSchema;
+import org.apache.hadoop.hdds.scm.net.NodeSchemaManager;
+import org.apache.hadoop.hdds.scm.node.NodeManager;
+import org.apache.hadoop.hdds.scm.node.NodeStatus;
+import org.apache.hadoop.hdds.scm.node.states.NodeNotFoundException;
+import org.apache.hadoop.ozone.container.common.SCMTestUtils;
+import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
+import org.junit.Assert;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import static org.apache.hadoop.hdds.protocol.proto.HddsProtos.NodeOperationalState.IN_SERVICE;
+import static org.apache.hadoop.hdds.scm.net.NetConstants.LEAF_SCHEMA;
+import static org.apache.hadoop.hdds.scm.net.NetConstants.RACK_SCHEMA;
+import static org.apache.hadoop.hdds.scm.net.NetConstants.ROOT_SCHEMA;
+
+/**
+ * Tests the ECOverReplicationHandling functionality.
+ */
+public class TestECOverReplicationHandler {
+ private ECReplicationConfig repConfig;
+ private ContainerInfo container;
+ private NodeManager nodeManager;
+ private OzoneConfiguration conf;
+ private PlacementPolicy policy;
+
+ @BeforeEach
+ public void setup() {
+ nodeManager = new MockNodeManager(true, 10) {
+ @Override
+ public NodeStatus getNodeStatus(DatanodeDetails dd)
+ throws NodeNotFoundException {
+ return NodeStatus.inServiceHealthy();
+ }
+ };
+ conf = SCMTestUtils.getConf();
+ repConfig = new ECReplicationConfig(3, 2);
+ container = ReplicationTestUtil
+ .createContainer(HddsProtos.LifeCycleState.CLOSED, repConfig);
Review Comment:
Probably below code can be moved ReplicationTestUtil and reuse in both TestECUnderReplicationHandler and TestOverReplicationHandler ?
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[GitHub] [ozone] JacksonYao287 commented on a diff in pull request #3572: HDDS-6960. EC: Implement the Over-replication Handler
Posted by GitBox <gi...@apache.org>.
JacksonYao287 commented on code in PR #3572:
URL: https://github.com/apache/ozone/pull/3572#discussion_r912693462
##########
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/replication/AbstractOverReplicationHandler.java:
##########
@@ -0,0 +1,109 @@
+/*
+ * 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;
+
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.scm.ContainerPlacementStatus;
+import org.apache.hadoop.hdds.scm.PlacementPolicy;
+import org.apache.hadoop.hdds.scm.container.ContainerReplica;
+import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+/**
+ * this class holds some common methods that will be shared among
+ * different kinds of Implementation of OverReplicationHandler.
+ * */
+public abstract class AbstractOverReplicationHandler
+ implements UnhealthyReplicationHandler {
+ private final PlacementPolicy placementPolicy;
+
+ protected AbstractOverReplicationHandler(PlacementPolicy placementPolicy) {
+ this.placementPolicy = placementPolicy;
+ }
+ /**
+ * Identify a new set of datanode(s) to replicate/reconstruct the container
+ * and form the SCM commands to send it to DN.
Review Comment:
sorry for missing , fixed now!
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