DaveTeng0 commented on code in PR #4126: URL: https://github.com/apache/ozone/pull/4126#discussion_r1097007012
########## hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/freon/DatanodeSimulationState.java: ########## @@ -0,0 +1,375 @@ +/** + * 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.freon; + +import com.fasterxml.jackson.core.JsonGenerator; +import com.fasterxml.jackson.core.JsonParser; +import com.fasterxml.jackson.databind.DeserializationContext; +import com.fasterxml.jackson.databind.SerializerProvider; +import com.fasterxml.jackson.databind.annotation.JsonDeserialize; +import com.fasterxml.jackson.databind.annotation.JsonSerialize; +import com.fasterxml.jackson.databind.deser.std.StdDeserializer; +import com.fasterxml.jackson.databind.ser.std.StdSerializer; +import org.apache.commons.lang3.RandomUtils; +import org.apache.hadoop.fs.StorageType; +import org.apache.hadoop.hdds.conf.StorageUnit; +import org.apache.hadoop.hdds.protocol.DatanodeDetails; +import org.apache.hadoop.hdds.protocol.proto.HddsProtos; +import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos; +import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos.ContainerReplicaProto; +import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos.ContainerReportsProto; +import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos.IncrementalContainerReportProto; +import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos.LayoutVersionProto; +import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos.PipelineReportsProto; +import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos.SCMCommandProto; +import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos.SCMHeartbeatRequestProto; +import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos.SCMHeartbeatResponseProto; +import org.apache.hadoop.ozone.container.common.impl.StorageLocationReport; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.net.InetSocketAddress; +import java.time.Instant; +import java.util.HashMap; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Set; + +/** + * Encapsulates states of a simulated datanode instance. + */ +class DatanodeSimulationState { + private static final Logger LOGGER = LoggerFactory.getLogger( + DatanodeSimulationState.class); + public static final long CONTAINER_SIZE = (long) StorageUnit.GB.toBytes(5); + private int targetContainersCount; + + private DatanodeDetails datanodeDetails; + private boolean isRegistered = false; + private long fullContainerReportDurationMs; + private Map<InetSocketAddress, EndpointState> endpointStates = + new HashMap<>(); + + private Set<String> pipelines = new HashSet<>(); + private Map<Long, ContainerReplicaProto.State> containers = + new HashMap<>(); + + + // indicate if this node is in read-only mode, no pipeline should be created. + private volatile boolean readOnly = false; + + DatanodeSimulationState(DatanodeDetails datanodeDetails, + long fullContainerReportDurationMs, + List<InetSocketAddress> allEndpoints, + int targetContainersCount) { + this(); + this.datanodeDetails = datanodeDetails; + this.fullContainerReportDurationMs = fullContainerReportDurationMs; + initEndpointsState(allEndpoints); + this.targetContainersCount = targetContainersCount; + } + + DatanodeSimulationState() { + } + + void initEndpointsState(List<InetSocketAddress> allEndpoints) { + for (InetSocketAddress endpoint : allEndpoints) { + endpointStates.put(endpoint, new EndpointState()); + } + } + + public synchronized void ackHeartbeatResponse( + SCMHeartbeatResponseProto response) { + for (SCMCommandProto command : response.getCommandsList()) { + switch (command.getCommandType()) { + case createPipelineCommand: + StorageContainerDatanodeProtocolProtos.CreatePipelineCommandProto + pipelineCmd = + command.getCreatePipelineCommandProto(); + if (!readOnly) { + pipelines.add(pipelineCmd.getPipelineID().getId()); + } else { + LOGGER.info("Ignored pipeline creation for {}-{}", + pipelineCmd.getType(), pipelineCmd.getFactor()); + } + break; + case closePipelineCommand: + pipelines.remove( + command.getClosePipelineCommandProto() + .getPipelineID().getId()); + break; + case closeContainerCommand: + StorageContainerDatanodeProtocolProtos.CloseContainerCommandProto + closeContainerCmd = command.getCloseContainerCommandProto(); + closeContainer(closeContainerCmd.getContainerID()); + break; + default: + LOGGER.debug("Ignored command: {}", + command.getCommandType()); + } + } + } + + public synchronized SCMHeartbeatRequestProto heartbeatRequest( + InetSocketAddress endpoint, LayoutVersionProto layoutInfo) + throws IOException { + SCMHeartbeatRequestProto.Builder builder = + SCMHeartbeatRequestProto.newBuilder() + .setDatanodeDetails(datanodeDetails.getProtoBufMessage()) + .setDataNodeLayoutVersion(layoutInfo) + .setNodeReport(createNodeReport()) + .setPipelineReports(createPipelineReport()); + + addContainerReport(endpoint, builder); + + return builder.build(); + } + + private void addContainerReport(InetSocketAddress endpoint, + SCMHeartbeatRequestProto.Builder builder) { + EndpointState state = endpointStates.get(endpoint); + if (state.nextFullContainerReport.compareTo(Instant.now()) <= 0) { + builder.setContainerReport(createFullContainerReport()); + + // Every datanode will start with a full report, then the next full + // repport should be schedule randomly between 0 and the next true cycle + // to avoid peaks. + if (state.nextFullContainerReport == Instant.MIN) { + state.nextFullContainerReport = Instant.now().plusMillis( + RandomUtils.nextLong(1, fullContainerReportDurationMs)); + } else { + state.nextFullContainerReport = Instant.now() + .plusMillis(fullContainerReportDurationMs); + } + state.icr.clear(); + } else { + if (state.icr.getReportCount() > 0) { + builder.addIncrementalContainerReport(state.icr.build()); + state.icr.clear(); + } + } + } + + ContainerReportsProto createFullContainerReport() { + ContainerReportsProto.Builder builder = ContainerReportsProto.newBuilder(); + for (Map.Entry<Long, ContainerReplicaProto.State> entry : + containers.entrySet()) { + ContainerReplicaProto container = + ContainerReplicaProto.newBuilder() + .setContainerID(entry.getKey()) + .setReadCount(10_000) + .setWriteCount(10_000) + .setReadBytes(10_000_000L) + .setWriteBytes(5_000_000_000L) + .setKeyCount(10_000) + .setUsed(5_000_000_000L) + .setState(entry.getValue()) + .setBlockCommitSequenceId(1000) + .setOriginNodeId(datanodeDetails.getUuidString()) + .setReplicaIndex(0) + .build(); + builder.addReports(container); + } + return builder.build(); + } + + PipelineReportsProto createPipelineReport() { + PipelineReportsProto.Builder builder = PipelineReportsProto.newBuilder(); + for (String pipelineId : pipelines) { + builder.addPipelineReport( + StorageContainerDatanodeProtocolProtos.PipelineReport.newBuilder() + .setPipelineID(HddsProtos.PipelineID + .newBuilder().setId(pipelineId).build()) + .setIsLeader(true).build()); + } + return builder.build(); + } + + StorageContainerDatanodeProtocolProtos.NodeReportProto createNodeReport() + throws IOException { + long capacity = targetContainersCount * CONTAINER_SIZE; + long used = readOnly ? capacity : + CONTAINER_SIZE * containers.size(); + + StorageLocationReport storageLocationReport = StorageLocationReport + .newBuilder() + .setStorageLocation("/tmp/unreal_storage") + .setId("simulated-storage-volume") + .setCapacity(capacity) + .setScmUsed(used) + .setRemaining(capacity - used) + .setStorageType(StorageType.DEFAULT) + .build(); + + StorageLocationReport metaLocationReport = StorageLocationReport + .newBuilder() + .setStorageLocation("/tmp/unreal_metadata") + .setId("simulated-storage-volume") + .setCapacity((long) StorageUnit.GB.toBytes(100)) + .setScmUsed((long) StorageUnit.GB.toBytes(50)) + .setRemaining((long) StorageUnit.GB.toBytes(50)) + .setStorageType(StorageType.DEFAULT) + .build(); + + return StorageContainerDatanodeProtocolProtos.NodeReportProto.newBuilder() + .addStorageReport(storageLocationReport.getProtoBufMessage()) + .addMetadataStorageReport( + metaLocationReport.getMetadataProtoBufMessage()) + .build(); + } + + public synchronized void newContainer(long containerId) { + containers.put(containerId, ContainerReplicaProto.State.OPEN); + for (EndpointState state : endpointStates.values()) { + state.icr.addReport( + ContainerReplicaProto.newBuilder() + .setContainerID(containerId) + .setReadCount(10_000) + .setWriteCount(10_000) + .setReadBytes(10_000_000L) + .setWriteBytes(5_000_000_000L) + .setKeyCount(10_000) + .setUsed(CONTAINER_SIZE) + .setState(ContainerReplicaProto.State.OPEN) + .setBlockCommitSequenceId(1000) + .setOriginNodeId(datanodeDetails.getUuidString()) + .setReplicaIndex(0) + .build() + ); + } + } + + public synchronized void closeContainer(Long containerID) { + if (containers.containsKey(containerID)) { + containers.put(containerID, ContainerReplicaProto.State.CLOSED); + for (EndpointState state : endpointStates.values()) { + state.icr.addReport( + ContainerReplicaProto.newBuilder() + .setContainerID(containerID) + .setReadCount(10_000) + .setWriteCount(10_000) + .setReadBytes(10_000_000L) + .setWriteBytes(5_000_000_000L) + .setKeyCount(10_000) + .setUsed(5_000_000_000L) + .setState(ContainerReplicaProto.State.CLOSED) + .setBlockCommitSequenceId(1000) + .setOriginNodeId(datanodeDetails.getUuidString()) + .setReplicaIndex(0) + .build() + ); + } + } else { + LOGGER.error("Unrecognized closeContainerCommand"); + } + } + + @JsonSerialize(using = DatanodeDetailsSerializer.class) + @JsonDeserialize(using = DatanodeDeserializer.class) + public synchronized DatanodeDetails getDatanodeDetails() { + return datanodeDetails; + } + + public synchronized void setDatanodeDetails( + DatanodeDetails datanodeDetails) { + this.datanodeDetails = datanodeDetails; + } + + public synchronized Set<String> getPipelines() { + return pipelines; + } + + public synchronized void setPipelines(Set<String> pipelines) { + this.pipelines = pipelines; + } + + public synchronized boolean isRegistered() { + return isRegistered; + } + + public synchronized void setRegistered(boolean registered) { + isRegistered = registered; + } + + public synchronized Map<Long, ContainerReplicaProto.State> getContainers() { + return containers; + } + + public synchronized void setContainers( + Map<Long, ContainerReplicaProto.State> containers) { + this.containers = containers; + } + + public void setReadOnly(boolean readOnly) { + this.readOnly = readOnly; + } + + public long getFullContainerReportDurationMs() { + return fullContainerReportDurationMs; + } + + public void setFullContainerReportDurationMs( + long fullContainerReportDurationMs) { + this.fullContainerReportDurationMs = fullContainerReportDurationMs; + } + + public int getTargetContainersCount() { + return targetContainersCount; + } + + public void setTargetContainersCount(int targetContainersCount) { + this.targetContainersCount = targetContainersCount; + } + + private static class DatanodeDetailsSerializer + extends StdSerializer<DatanodeDetails> { + protected DatanodeDetailsSerializer() { Review Comment: Hey @duongkame ~ just curious, does the protected constructor mean it'll be restricted to be called by some subclass of DatanodeDetailsSerializer? -- This is an automated message from the Apache Git Service. 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