[
https://issues.apache.org/jira/browse/FLINK-8005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16244159#comment-16244159
]
ASF GitHub Bot commented on FLINK-8005:
---------------------------------------
Github user GJL commented on a diff in the pull request:
https://github.com/apache/flink/pull/4980#discussion_r149703349
--- Diff:
flink-runtime/src/test/java/org/apache/flink/runtime/taskmanager/TaskStopTest.java
---
@@ -1,157 +0,0 @@
-/*
- * 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.flink.runtime.taskmanager;
-
-import org.apache.flink.api.common.JobID;
-import org.apache.flink.api.common.TaskInfo;
-import org.apache.flink.configuration.Configuration;
-import org.apache.flink.runtime.blob.BlobCacheService;
-import org.apache.flink.runtime.blob.PermanentBlobCache;
-import org.apache.flink.runtime.blob.TransientBlobCache;
-import org.apache.flink.runtime.broadcast.BroadcastVariableManager;
-import org.apache.flink.runtime.checkpoint.TaskStateSnapshot;
-import org.apache.flink.runtime.clusterframework.types.AllocationID;
-import org.apache.flink.runtime.deployment.InputGateDeploymentDescriptor;
-import
org.apache.flink.runtime.deployment.ResultPartitionDeploymentDescriptor;
-import org.apache.flink.runtime.deployment.TaskDeploymentDescriptor;
-import org.apache.flink.runtime.execution.ExecutionState;
-import org.apache.flink.runtime.execution.librarycache.LibraryCacheManager;
-import org.apache.flink.runtime.executiongraph.ExecutionAttemptID;
-import org.apache.flink.runtime.executiongraph.JobInformation;
-import org.apache.flink.runtime.executiongraph.TaskInformation;
-import org.apache.flink.runtime.filecache.FileCache;
-import org.apache.flink.runtime.io.disk.iomanager.IOManager;
-import org.apache.flink.runtime.io.network.NetworkEnvironment;
-import
org.apache.flink.runtime.io.network.netty.PartitionProducerStateChecker;
-import
org.apache.flink.runtime.io.network.partition.ResultPartitionConsumableNotifier;
-import org.apache.flink.runtime.jobgraph.JobVertexID;
-import org.apache.flink.runtime.jobgraph.tasks.AbstractInvokable;
-import org.apache.flink.runtime.jobgraph.tasks.InputSplitProvider;
-import org.apache.flink.runtime.jobgraph.tasks.StoppableTask;
-import org.apache.flink.runtime.memory.MemoryManager;
-import org.apache.flink.runtime.metrics.groups.TaskIOMetricGroup;
-import org.apache.flink.runtime.metrics.groups.TaskMetricGroup;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.powermock.core.classloader.annotations.PrepareForTest;
-import org.powermock.modules.junit4.PowerMockRunner;
-
-import java.lang.reflect.Field;
-import java.util.Collections;
-import java.util.concurrent.Executor;
-
-import scala.concurrent.duration.FiniteDuration;
-
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.when;
-
-@RunWith(PowerMockRunner.class)
-@PrepareForTest({ TaskDeploymentDescriptor.class, JobID.class,
FiniteDuration.class })
-public class TaskStopTest {
- private Task task;
-
- public void doMocking(AbstractInvokable taskMock) throws Exception {
-
- TaskInfo taskInfoMock = mock(TaskInfo.class);
-
when(taskInfoMock.getTaskNameWithSubtasks()).thenReturn("dummyName");
-
- TaskManagerRuntimeInfo tmRuntimeInfo =
mock(TaskManagerRuntimeInfo.class);
- when(tmRuntimeInfo.getConfiguration()).thenReturn(new
Configuration());
-
- TaskMetricGroup taskMetricGroup = mock(TaskMetricGroup.class);
-
when(taskMetricGroup.getIOMetricGroup()).thenReturn(mock(TaskIOMetricGroup.class));
-
- BlobCacheService blobService =
- new BlobCacheService(mock(PermanentBlobCache.class),
mock(TransientBlobCache.class));
-
- task = new Task(
- mock(JobInformation.class),
- new TaskInformation(
- new JobVertexID(),
- "test task name",
- 1,
- 1,
- "foobar",
- new Configuration()),
- mock(ExecutionAttemptID.class),
- mock(AllocationID.class),
- 0,
- 0,
-
Collections.<ResultPartitionDeploymentDescriptor>emptyList(),
- Collections.<InputGateDeploymentDescriptor>emptyList(),
- 0,
- mock(TaskStateSnapshot.class),
- mock(MemoryManager.class),
- mock(IOManager.class),
- mock(NetworkEnvironment.class),
- mock(BroadcastVariableManager.class),
- mock(TaskManagerActions.class),
- mock(InputSplitProvider.class),
- mock(CheckpointResponder.class),
- blobService,
- mock(LibraryCacheManager.class),
- mock(FileCache.class),
- tmRuntimeInfo,
- taskMetricGroup,
- mock(ResultPartitionConsumableNotifier.class),
- mock(PartitionProducerStateChecker.class),
- mock(Executor.class));
- Field f = task.getClass().getDeclaredField("invokable");
- f.setAccessible(true);
- f.set(task, taskMock);
-
- Field f2 = task.getClass().getDeclaredField("executionState");
- f2.setAccessible(true);
- f2.set(task, ExecutionState.RUNNING);
- }
-
- @Test(timeout = 20000)
- public void testStopExecution() throws Exception {
--- End diff --
This only tested that stop is invoked. Should be covered by
`testSetsUserCodeClassLoader`.
> Snapshotting FlinkKafkaProducer011 fails due to ClassLoader issues
> ------------------------------------------------------------------
>
> Key: FLINK-8005
> URL: https://issues.apache.org/jira/browse/FLINK-8005
> Project: Flink
> Issue Type: Bug
> Components: Core, Kafka Connector, State Backends, Checkpointing
> Affects Versions: 1.4.0
> Reporter: Gary Yao
> Assignee: Gary Yao
> Priority: Blocker
> Fix For: 1.4.0
>
>
> *Problem Description*
> Classes in the user code jar cannot be loaded by the snapshot thread’s
> context class loader ({{AppClassLoader}}).
> For example, when creating instances of {{KafkaProducer}}, Strings are
> resolved to class objects by Kafka.
> Find below an extract from {{ConfigDef.java}}:
> {code}
> case CLASS:
> if (value instanceof Class)
> return value;
> else if (value instanceof String)
> return Class.forName(trimmed, true,
> Utils.getContextOrKafkaClassLoader());
> else
> throw new ConfigException(name, value, "Expected a Class instance or
> class name.");
> {code}
> *Exception/Stacktrace*
> {noformat}
> Caused by: java.lang.Exception: Could not complete snapshot 1 for operator
> Source: Collection Source -> Sink: kafka-sink-1510048188383 (1/1).
> at
> org.apache.flink.streaming.api.operators.AbstractStreamOperator.snapshotState(AbstractStreamOperator.java:379)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask$CheckpointingOperation.checkpointStreamOperator(StreamTask.java:1077)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask$CheckpointingOperation.executeCheckpointing(StreamTask.java:1026)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.checkpointState(StreamTask.java:659)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.performCheckpoint(StreamTask.java:595)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.triggerCheckpoint(StreamTask.java:526)
> ... 7 more
> Caused by: org.apache.kafka.common.config.ConfigException: Invalid value
> org.apache.kafka.common.serialization.ByteArraySerializer for configuration
> key.serializer: Class
> org.apache.kafka.common.serialization.ByteArraySerializer could not be found.
> at
> org.apache.kafka.common.config.ConfigDef.parseType(ConfigDef.java:715)
> at
> org.apache.kafka.common.config.ConfigDef.parseValue(ConfigDef.java:460)
> at org.apache.kafka.common.config.ConfigDef.parse(ConfigDef.java:453)
> at
> org.apache.kafka.common.config.AbstractConfig.<init>(AbstractConfig.java:62)
> at
> org.apache.kafka.common.config.AbstractConfig.<init>(AbstractConfig.java:75)
> at
> org.apache.kafka.clients.producer.ProducerConfig.<init>(ProducerConfig.java:360)
> at
> org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:288)
> at
> org.apache.flink.streaming.connectors.kafka.internal.FlinkKafkaProducer.<init>(FlinkKafkaProducer.java:114)
> at
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer011.initProducer(FlinkKafkaProducer011.java:913)
> at
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer011.initTransactionalProducer(FlinkKafkaProducer011.java:904)
> at
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer011.createOrGetProducerFromPool(FlinkKafkaProducer011.java:637)
> at
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer011.beginTransaction(FlinkKafkaProducer011.java:613)
> at
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer011.beginTransaction(FlinkKafkaProducer011.java:94)
> at
> org.apache.flink.streaming.api.functions.sink.TwoPhaseCommitSinkFunction.beginTransactionInternal(TwoPhaseCommitSinkFunction.java:359)
> at
> org.apache.flink.streaming.api.functions.sink.TwoPhaseCommitSinkFunction.snapshotState(TwoPhaseCommitSinkFunction.java:294)
> at
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer011.snapshotState(FlinkKafkaProducer011.java:756)
> at
> org.apache.flink.streaming.util.functions.StreamingFunctionUtils.trySnapshotFunctionState(StreamingFunctionUtils.java:118)
> at
> org.apache.flink.streaming.util.functions.StreamingFunctionUtils.snapshotFunctionState(StreamingFunctionUtils.java:99)
> at
> org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.snapshotState(AbstractUdfStreamOperator.java:90)
> at
> org.apache.flink.streaming.api.operators.AbstractStreamOperator.snapshotState(AbstractStreamOperator.java:357)
> ... 12 more
> {noformat}
> *How to reproduce*
> Note that the problem only appears when a job is deployed on a cluster.
> # Build Flink 1.4
> # Build test job https://github.com/GJL/flink-kafka011-producer-test with
> {{mvn -o clean install -Pbuild-jar}}
> # Start job:
> {noformat}
> bin/flink run -c com.garyyao.StreamingJob
> /pathto/flink-kafka011-producer/target/flink-kafka011-producer-1.0-SNAPSHOT.jar
> {noformat}
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