kerneltime commented on code in PR #6297: URL: https://github.com/apache/ozone/pull/6297#discussion_r1533269800
########## hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/freon/DNRPCLoadGenerator.java: ########## @@ -0,0 +1,155 @@ +/* + * 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.codahale.metrics.Timer; +import com.google.common.annotations.VisibleForTesting; +import com.google.common.base.Preconditions; +import org.apache.ratis.thirdparty.com.google.protobuf.ByteString; +import org.apache.hadoop.hdds.cli.HddsVersionProvider; +import org.apache.hadoop.hdds.conf.OzoneConfiguration; +import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos; +import org.apache.hadoop.hdds.scm.XceiverClientFactory; +import org.apache.hadoop.hdds.scm.XceiverClientManager; +import org.apache.hadoop.hdds.scm.XceiverClientSpi; +import org.apache.hadoop.hdds.scm.cli.ContainerOperationClient; +import org.apache.hadoop.hdds.scm.client.ScmClient; +import org.apache.hadoop.hdds.scm.container.ContainerInfo; +import org.apache.hadoop.hdds.scm.pipeline.Pipeline; +import org.apache.hadoop.hdds.scm.storage.ContainerProtocolCalls; +import org.apache.ratis.thirdparty.com.google.protobuf.UnsafeByteOperations; +import picocli.CommandLine; +import picocli.CommandLine.Command; +import picocli.CommandLine.Option; + +import java.util.List; +import java.util.concurrent.Callable; + +import static org.apache.hadoop.ozone.common.PayloadUtils.generatePayloadBytes; + +/** + * Utility to generate RPC request to DN. + */ +@Command(name = "dn-echo", + aliases = "dne", + description = + "Generate echo RPC request to DataNode", + versionProvider = HddsVersionProvider.class, + mixinStandardHelpOptions = true, + showDefaultValues = true) +public class DNRPCLoadGenerator extends BaseFreonGenerator + implements Callable<Void> { + + private static final int RPC_PAYLOAD_MULTIPLICATION_FACTOR = 1024; + private static final int MAX_SIZE_KB = 2097151; + private Timer timer; + private OzoneConfiguration configuration; + private ByteString payloadReqBytes; + private int payloadRespSize; + private XceiverClientSpi client; + @Option(names = {"--payload-req"}, + description = + "Specifies the size of payload in KB in RPC request. " + + "Max size is 2097151 KB", + defaultValue = "0") + private int payloadReqSizeKB = 0; + + @Option(names = {"--payload-resp"}, + description = + "Specifies the size of payload in KB in RPC response. " + + "Max size is 2097151 KB", + defaultValue = "0") + private int payloadRespSizeKB = 0; + + @Option(names = {"--container-id"}, + description = "Send echo to DataNodes associated with this container") + private long containerID; + + @Option(names = {"--sleep-time-ms"}, + description = "Let DataNode to pause for a duration (in milliseconds) for each request", + defaultValue = "0") + private int sleepTimeMs = 0; + + @CommandLine.ParentCommand + private Freon freon; + + // empy constructor for picocli + DNRPCLoadGenerator() { + } + + @VisibleForTesting + DNRPCLoadGenerator(OzoneConfiguration ozoneConfiguration) { + this.configuration = ozoneConfiguration; + } + + @Override + public Void call() throws Exception { + Preconditions.checkArgument(payloadReqSizeKB >= 0, + "OM echo request payload size should be positive value or zero."); + Preconditions.checkArgument(payloadRespSizeKB >= 0, + "OM echo response payload size should be positive value or zero."); + + if (configuration == null) { + configuration = freon.createOzoneConfiguration(); + } + ScmClient scmClient = new ContainerOperationClient(configuration); + ContainerInfo containerInfo = scmClient.getContainer(containerID); + + List<Pipeline> pipelineList = scmClient.listPipelines(); + Pipeline pipeline = pipelineList.stream() + .filter(p -> p.getId().equals(containerInfo.getPipelineID())) + .findFirst() + .orElse(null); + XceiverClientFactory xceiverClientManager = + new XceiverClientManager(configuration); + client = xceiverClientManager.acquireClient(pipeline); Review Comment: 11k is an interesting number, we should support an option `--clients`, this would enable multiple clients via multiple threads, to max out the Datanode and or the client as well. -- This is an automated message from the Apache Git Service. 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