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https://issues.apache.org/jira/browse/HDDS-1753?focusedWorklogId=301835&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-301835
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ASF GitHub Bot logged work on HDDS-1753:
----------------------------------------
Author: ASF GitHub Bot
Created on: 27/Aug/19 09:46
Start Date: 27/Aug/19 09:46
Worklog Time Spent: 10m
Work Description: lokeshj1703 commented on pull request #1318: HDDS-1753.
Datanode unable to find chunk while replication data using ratis.
URL: https://github.com/apache/hadoop/pull/1318#discussion_r317987673
##########
File path:
hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/client/rpc/TestDeleteWithSlowFollower.java
##########
@@ -0,0 +1,288 @@
+/**
+ * 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.client.rpc;
+
+import org.apache.hadoop.hdds.client.BlockID;
+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.hdds.protocol.datanode.proto.ContainerProtos;
+import org.apache.hadoop.hdds.protocol.proto.HddsProtos;
+import org.apache.hadoop.hdds.scm.ScmConfigKeys;
+import org.apache.hadoop.hdds.scm.XceiverClientManager;
+import org.apache.hadoop.hdds.scm.XceiverClientSpi;
+import
org.apache.hadoop.hdds.scm.container.common.helpers.StorageContainerException;
+import org.apache.hadoop.hdds.scm.pipeline.Pipeline;
+import org.apache.hadoop.ozone.HddsDatanodeService;
+import org.apache.hadoop.ozone.MiniOzoneCluster;
+import org.apache.hadoop.ozone.OzoneConfigKeys;
+import org.apache.hadoop.ozone.client.ObjectStore;
+import org.apache.hadoop.ozone.client.OzoneClient;
+import org.apache.hadoop.ozone.client.OzoneClientFactory;
+import org.apache.hadoop.ozone.client.io.KeyOutputStream;
+import org.apache.hadoop.ozone.client.io.OzoneOutputStream;
+import org.apache.hadoop.ozone.container.ContainerTestHelper;
+import org.apache.hadoop.ozone.container.common.helpers.BlockData;
+import org.apache.hadoop.ozone.container.common.helpers.ChunkInfo;
+import org.apache.hadoop.ozone.container.common.interfaces.Container;
+import
org.apache.hadoop.ozone.container.common.statemachine.DatanodeStateMachine;
+import
org.apache.hadoop.ozone.container.common.transport.server.ratis.ContainerStateMachine;
+import org.apache.hadoop.ozone.container.keyvalue.KeyValueContainerData;
+import org.apache.hadoop.ozone.container.keyvalue.KeyValueHandler;
+import org.apache.hadoop.ozone.container.ozoneimpl.OzoneContainer;
+import org.apache.hadoop.ozone.om.helpers.OmKeyArgs;
+import org.apache.hadoop.ozone.om.helpers.OmKeyInfo;
+import org.apache.hadoop.ozone.om.helpers.OmKeyLocationInfo;
+import org.apache.hadoop.test.GenericTestUtils;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+import static
org.apache.hadoop.hdds.HddsConfigKeys.HDDS_COMMAND_STATUS_REPORT_INTERVAL;
+import static
org.apache.hadoop.hdds.HddsConfigKeys.HDDS_CONTAINER_REPORT_INTERVAL;
+import static
org.apache.hadoop.hdds.scm.ScmConfigKeys.HDDS_SCM_WATCHER_TIMEOUT;
+import static
org.apache.hadoop.hdds.scm.ScmConfigKeys.OZONE_SCM_PIPELINE_DESTROY_TIMEOUT;
+import static
org.apache.hadoop.hdds.scm.ScmConfigKeys.OZONE_SCM_STALENODE_INTERVAL;
+
+/**
+ * Tests delete key operation with a slow follower in the datanode
+ * pipeline.
+ */
+public class TestDeleteWithSlowFollower {
+
+ private static MiniOzoneCluster cluster;
+ private static OzoneConfiguration conf;
+ private static OzoneClient client;
+ private static ObjectStore objectStore;
+ private static String volumeName;
+ private static String bucketName;
+ private static String path;
+ private static XceiverClientManager xceiverClientManager;
+
+ /**
+ * Create a MiniDFSCluster for testing.
+ *
+ * @throws IOException
+ */
+ @BeforeClass
+ public static void init() throws Exception {
+ conf = new OzoneConfiguration();
+ path = GenericTestUtils
+ .getTempPath(TestContainerStateMachineFailures.class.getSimpleName());
+ File baseDir = new File(path);
+ baseDir.mkdirs();
+
+ conf.setTimeDuration(HDDS_CONTAINER_REPORT_INTERVAL, 200,
+ TimeUnit.MILLISECONDS);
+ // Make the stale, dead and server failure timeout higher so that a dead
+ // node is not detecte at SCM as well as the pipeline close action
+ // never gets initiated early at Datanode in the test.
+ conf.setTimeDuration(HDDS_COMMAND_STATUS_REPORT_INTERVAL, 200,
+ TimeUnit.MILLISECONDS);
+ conf.setTimeDuration(HDDS_SCM_WATCHER_TIMEOUT, 1000,
TimeUnit.MILLISECONDS);
+ conf.setTimeDuration(OZONE_SCM_STALENODE_INTERVAL, 1000, TimeUnit.SECONDS);
+ conf.setTimeDuration(ScmConfigKeys.OZONE_SCM_DEADNODE_INTERVAL, 2000,
+ TimeUnit.SECONDS);
+ conf.setTimeDuration(OZONE_SCM_PIPELINE_DESTROY_TIMEOUT, 1000,
+ TimeUnit.SECONDS);
+ conf.setTimeDuration(OzoneConfigKeys.DFS_RATIS_SERVER_FAILURE_DURATION_KEY,
+ 1000, TimeUnit.SECONDS);
+ conf.setTimeDuration(OzoneConfigKeys.OZONE_BLOCK_DELETING_SERVICE_INTERVAL,
+ 1, TimeUnit.SECONDS);
+
+ conf.setQuietMode(false);
+ cluster =
+ MiniOzoneCluster.newBuilder(conf).setNumDatanodes(3).setHbInterval(100)
+ .build();
+ cluster.waitForClusterToBeReady();
+ //the easiest way to create an open container is creating a key
+ client = OzoneClientFactory.getClient(conf);
+ objectStore = client.getObjectStore();
+ xceiverClientManager = new XceiverClientManager(conf);
+ volumeName = "testcontainerstatemachinefailures";
+ bucketName = volumeName;
+ objectStore.createVolume(volumeName);
+ objectStore.getVolume(volumeName).createBucket(bucketName);
+ }
+
+ /**
+ * Shutdown MiniDFSCluster.
+ */
+ @AfterClass
+ public static void shutdown() {
+ if (cluster != null) {
+ cluster.shutdown();
+ }
+ }
+
+ /**
+ * The test simulates a slow follower by first writing key thereby creating a
+ * a container on 3 dns of the cluster. Then, a dn is shutdown and a close
+ * container cmd gets issued so that in the leader and the alive follower,
+ * container gets closed. And then, key is deleted and
+ * the node is started up again so that it
+ * rejoins the ring and starts applying the transaction from where it left
+ * by fetching the entries from the leader. Until and unless this follower
+ * catches up and its replica gets closed,
+ * the data is not deleted from any of the nodes which have the
+ * closed replica.
+ */
+ @Test
+ public void testDeleteKeyWithSlowFollower() throws Exception {
+
+ OzoneOutputStream key =
+ objectStore.getVolume(volumeName).getBucket(bucketName)
+ .createKey("ratis", 0, ReplicationType.RATIS,
+ ReplicationFactor.THREE, new HashMap<>());
+ byte[] testData = "ratis".getBytes();
+ // First write and flush creates a container in the datanode
+ key.write(testData);
+ key.flush();
+
+ KeyOutputStream groupOutputStream = (KeyOutputStream)
key.getOutputStream();
+ List<OmKeyLocationInfo> locationInfoList =
+ groupOutputStream.getLocationInfoList();
+ Assert.assertEquals(1, locationInfoList.size());
+ OmKeyLocationInfo omKeyLocationInfo = locationInfoList.get(0);
+ long containerID = omKeyLocationInfo.getContainerID();
+ // A container is created on the datanode. Now figure out a follower node
to
+ // kill/slow down.
+ HddsDatanodeService follower = null;
+ HddsDatanodeService leader = null;
+
+ List<Pipeline> pipelineList =
+ cluster.getStorageContainerManager().getPipelineManager()
+ .getPipelines(HddsProtos.ReplicationType.RATIS,
+ HddsProtos.ReplicationFactor.THREE);
+ Assert.assertTrue(pipelineList.size() == 1);
+ Pipeline pipeline = pipelineList.get(0);
+ for (HddsDatanodeService dn : cluster.getHddsDatanodes()) {
+ if (ContainerTestHelper.isRatisFollower(dn, pipeline)) {
+ follower = dn;
+ } else if (ContainerTestHelper.isRatisLeader(dn, pipeline)) {
+ leader = dn;
+ }
+ }
+ Assert.assertNotNull(follower);
+ Assert.assertNotNull(leader);
+ //shutdown the slow follower
+ cluster.shutdownHddsDatanode(follower.getDatanodeDetails());
+ key.write(testData);
+ key.close();
+ XceiverClientSpi xceiverClient =
Review comment:
Can we please add a comment here that the container will be closed?
Similarly a comment regarding deleting the key just so that we can separate the
various sections of the test.
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Issue Time Tracking
-------------------
Worklog Id: (was: 301835)
Time Spent: 4h 10m (was: 4h)
> Datanode unable to find chunk while replication data using ratis.
> -----------------------------------------------------------------
>
> Key: HDDS-1753
> URL: https://issues.apache.org/jira/browse/HDDS-1753
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: Ozone Datanode
> Affects Versions: 0.4.0
> Reporter: Mukul Kumar Singh
> Assignee: Shashikant Banerjee
> Priority: Major
> Labels: MiniOzoneChaosCluster, pull-request-available
> Attachments: HDDS-1753.000.patch
>
> Time Spent: 4h 10m
> Remaining Estimate: 0h
>
> Leader datanode is unable to read chunk from the datanode while replicating
> data from leader to follower.
> Please note that deletion of keys is also happening while the data is being
> replicated.
> {code}
> 2019-07-02 19:39:22,604 INFO impl.RaftServerImpl
> (RaftServerImpl.java:checkInconsistentAppendEntries(972)) -
> 5ac88709-a3a2-4c8f-91de-5e54b617f05e: inconsistency entries.
> Reply:76a3eb0f-d7cd-477b-8973-db1
> 014feb398<-5ac88709-a3a2-4c8f-91de-5e54b617f05e#70:FAIL,INCONSISTENCY,nextIndex:9771,term:2,followerCommit:9782
> 2019-07-02 19:39:22,605 ERROR impl.ChunkManagerImpl
> (ChunkUtils.java:readData(161)) - Unable to find the chunk file. chunk info :
> ChunkInfo{chunkName='76ec669ae2cb6e10dd9f08c0789c5fdf_stream_a2850dce-def3
> -4d64-93d8-fa2ebafee933_chunk_1, offset=0, len=2048}
> 2019-07-02 19:39:22,605 INFO impl.RaftServerImpl
> (RaftServerImpl.java:checkInconsistentAppendEntries(990)) -
> 5ac88709-a3a2-4c8f-91de-5e54b617f05e: Failed appendEntries as latest snapshot
> (9770) already h
> as the append entries (first index: 1)
> 2019-07-02 19:39:22,605 INFO impl.RaftServerImpl
> (RaftServerImpl.java:checkInconsistentAppendEntries(972)) -
> 5ac88709-a3a2-4c8f-91de-5e54b617f05e: inconsistency entries.
> Reply:76a3eb0f-d7cd-477b-8973-db1
> 014feb398<-5ac88709-a3a2-4c8f-91de-5e54b617f05e#71:FAIL,INCONSISTENCY,nextIndex:9771,term:2,followerCommit:9782
> 2019-07-02 19:39:22,605 INFO keyvalue.KeyValueHandler
> (ContainerUtils.java:logAndReturnError(146)) - Operation: ReadChunk : Trace
> ID: 4216d461a4679e17:4216d461a4679e17:0:0 : Message: Unable to find the c
> hunk file. chunk info
> ChunkInfo{chunkName='76ec669ae2cb6e10dd9f08c0789c5fdf_stream_a2850dce-def3-4d64-93d8-fa2ebafee933_chunk_1,
> offset=0, len=2048} : Result: UNABLE_TO_FIND_CHUNK
> 2019-07-02 19:39:22,605 INFO impl.RaftServerImpl
> (RaftServerImpl.java:checkInconsistentAppendEntries(990)) -
> 5ac88709-a3a2-4c8f-91de-5e54b617f05e: Failed appendEntries as latest snapshot
> (9770) already h
> as the append entries (first index: 2)
> 2019-07-02 19:39:22,606 INFO impl.RaftServerImpl
> (RaftServerImpl.java:checkInconsistentAppendEntries(972)) -
> 5ac88709-a3a2-4c8f-91de-5e54b617f05e: inconsistency entries.
> Reply:76a3eb0f-d7cd-477b-8973-db1
> 014feb398<-5ac88709-a3a2-4c8f-91de-5e54b617f05e#72:FAIL,INCONSISTENCY,nextIndex:9771,term:2,followerCommit:9782
> 19:39:22.606 [pool-195-thread-19] ERROR DNAudit - user=null | ip=null |
> op=READ_CHUNK {blockData=conID: 3 locID: 102372189549953034 bcsId: 0} |
> ret=FAILURE
> java.lang.Exception: Unable to find the chunk file. chunk info
> ChunkInfo{chunkName='76ec669ae2cb6e10dd9f08c0789c5fdf_stream_a2850dce-def3-4d64-93d8-fa2ebafee933_chunk_1,
> offset=0, len=2048}
> at
> org.apache.hadoop.ozone.container.common.impl.HddsDispatcher.dispatchRequest(HddsDispatcher.java:320)
> ~[hadoop-hdds-container-service-0.5.0-SNAPSHOT.jar:?]
> at
> org.apache.hadoop.ozone.container.common.impl.HddsDispatcher.dispatch(HddsDispatcher.java:148)
> ~[hadoop-hdds-container-service-0.5.0-SNAPSHOT.jar:?]
> at
> org.apache.hadoop.ozone.container.common.transport.server.ratis.ContainerStateMachine.dispatchCommand(ContainerStateMachine.java:346)
> ~[hadoop-hdds-container-service-0.5.0-SNAPSHOT.jar:?]
> at
> org.apache.hadoop.ozone.container.common.transport.server.ratis.ContainerStateMachine.readStateMachineData(ContainerStateMachine.java:476)
> ~[hadoop-hdds-container-service-0.5.0-SNAPSHOT.jar:?]
> at
> org.apache.hadoop.ozone.container.common.transport.server.ratis.ContainerStateMachine.lambda$getCachedStateMachineData$2(ContainerStateMachine.java:495)
> ~[hadoop-hdds-container-service-0.5.0-SN
> APSHOT.jar:?]
> at
> com.google.common.cache.LocalCache$LocalManualCache$1.load(LocalCache.java:4767)
> ~[guava-11.0.2.jar:?]
> at
> com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3568)
> ~[guava-11.0.2.jar:?]
> at
> com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2350)
> ~[guava-11.0.2.jar:?]
> at
> com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2313)
> ~[guava-11.0.2.jar:?]
> at
> com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2228)
> ~[guava-11.0.2.jar:?]
> at com.google.common.cache.LocalCache.get(LocalCache.java:3965)
> ~[guava-11.0.2.jar:?]
> at
> com.google.common.cache.LocalCache$LocalManualCache.get(LocalCache.java:4764)
> ~[guava-11.0.2.jar:?]
> at
> org.apache.hadoop.ozone.container.common.transport.server.ratis.ContainerStateMachine.getCachedStateMachineData(ContainerStateMachine.java:494)
> ~[hadoop-hdds-container-service-0.5.0-SNAPSHOT.ja
> r:?]
> at
> org.apache.hadoop.ozone.container.common.transport.server.ratis.ContainerStateMachine.lambda$readStateMachineData$4(ContainerStateMachine.java:542)
> ~[hadoop-hdds-container-service-0.5.0-SNAPSHOT.jar:?]
> at
> java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
> [?:1.8.0_171]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> [?:1.8.0_171]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> [?:1.8.0_171]
> {code}
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