priyeshkaratha commented on code in PR #8325: URL: https://github.com/apache/ozone/pull/8325#discussion_r2060353147
########## hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/hdds/scm/pipeline/TestPipelineCloseLogsFlood.java: ########## @@ -0,0 +1,103 @@ +/* + * 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.pipeline; + +import static org.assertj.core.api.Assertions.assertThat; + +import java.io.IOException; +import java.io.OutputStream; +import java.util.HashMap; +import java.util.concurrent.TimeUnit; +import org.apache.commons.lang3.StringUtils; +import org.apache.hadoop.hdds.client.ReplicationConfig; +import org.apache.hadoop.hdds.client.ReplicationFactor; +import org.apache.hadoop.hdds.client.ReplicationType; +import org.apache.hadoop.hdds.conf.OzoneConfiguration; +import org.apache.hadoop.ozone.MiniOzoneCluster; +import org.apache.hadoop.ozone.client.OzoneBucket; +import org.apache.hadoop.ozone.client.OzoneClient; +import org.apache.hadoop.ozone.client.OzoneClientFactory; +import org.apache.hadoop.ozone.container.common.transport.server.ratis.XceiverServerRatis; +import org.apache.ozone.test.GenericTestUtils; +import org.junit.jupiter.api.AfterEach; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.Test; +import org.junit.jupiter.api.Timeout; +import org.slf4j.event.Level; + +/** + * Tests pipeline close logs. + */ +@Timeout(300) +public class TestPipelineCloseLogsFlood { + private static final String FLOOD_TOKEN = "pipeline Action CLOSE"; + private static final String DATANODE_SLOWNESS_TIMEOUT = "hdds.ratis.raft.server.rpc.slowness.timeout"; + private static final String NO_LEADER_TIMEOUT = "hdds.ratis.raft.server.notification.no-leader.timeout"; + private static final String VOLUME_NAME = "vol1"; + private static final String BUCKET_NAME = "bucket1"; + + private MiniOzoneCluster cluster; + private OzoneClient client; + private OzoneConfiguration conf; + + @BeforeEach + public void setUp() throws Exception { + conf = new OzoneConfiguration(); + // Make follower‑slowness detection fire quickly so that the log floods + conf.setTimeDuration(DATANODE_SLOWNESS_TIMEOUT, 10, TimeUnit.SECONDS); + conf.setTimeDuration(NO_LEADER_TIMEOUT, 10, TimeUnit.SECONDS); + + MiniOzoneCluster.Builder builder = MiniOzoneCluster.newBuilder(conf) + .setNumDatanodes(3); + cluster = builder.build(); + cluster.waitForClusterToBeReady(); + client = OzoneClientFactory.getRpcClient(conf); + } + + @AfterEach + public void tearDown() throws IOException { + if (cluster != null) { + cluster.shutdown(); + } + client.close(); + } + + @Test + public void testPipelineCloseLogFloodDoesntOccur() throws Exception { + GenericTestUtils.LogCapturer logCapturer = GenericTestUtils.LogCapturer.captureLogs(XceiverServerRatis.class); + GenericTestUtils.setLogLevel(XceiverServerRatis.class, Level.ERROR); + + client.getObjectStore().createVolume(VOLUME_NAME); + client.getObjectStore().getVolume(VOLUME_NAME).createBucket(BUCKET_NAME); + OzoneBucket ozoneBucket = client.getObjectStore().getVolume(VOLUME_NAME).getBucket(BUCKET_NAME); + ReplicationConfig config = ReplicationConfig.fromTypeAndFactor(ReplicationType.RATIS, ReplicationFactor.THREE); + + try (OutputStream out = ozoneBucket.createKey("key", 1024, config, new HashMap<>())) { + out.write(new byte[1024]); + } + // Kill one follower DN so that the pipeline becomes unhealthy + cluster.shutdownHddsDatanode(1); + // Wait (30 sec > a few heartbeat cycles) for multiple slowness callbacks + Thread.sleep(30_000L); + logCapturer.stopCapturing(); + int occurrences = StringUtils.countMatches(logCapturer.getOutput(), FLOOD_TOKEN); + // We expect many duplicates when the bug is present. A threshold of 5 is safe. + assertThat(occurrences).isGreaterThan(0); Review Comment: @ChenSammi No, It can be one or 2 based on the condition `activePipelines.get(groupId).isPendingClose()` since Follower slowness will happen for 2 pipelines since we are shutting down one node -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
