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/**
* 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 com.datatorrent.stram.engine;
import java.io.File;
import java.io.IOException;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.datatorrent.api.Context;
import com.datatorrent.api.DAG.Locality;
import com.datatorrent.common.util.AsyncFSStorageAgent;
import com.datatorrent.stram.StramLocalCluster;
import com.datatorrent.stram.engine.ProcessingModeTests.CollectorOperator;
import com.datatorrent.stram.plan.logical.LogicalPlan;
/**
*
*/
public class AtLeastOnceTest
{
private static final Logger logger = LoggerFactory.getLogger(AtLeastOnceTest.class);
@Before
public void setup() throws IOException
{
StreamingContainer.eventloop.start();
}
@After
public void teardown()
{
StreamingContainer.eventloop.stop();
}
@Test
public void testInputOperatorRecovery() throws Exception
{
RecoverableInputOperator.initGenTuples();
CollectorOperator.collection.clear();
int maxTuples = 30;
LogicalPlan dag = new LogicalPlan();
String workingDir = new File("target/testInputOperatorRecovery").getAbsolutePath();
AsyncFSStorageAgent asyncFSStorageAgent = new AsyncFSStorageAgent(workingDir, null);
asyncFSStorageAgent.setSyncCheckpoint(true);
dag.setAttribute(Context.OperatorContext.STORAGE_AGENT, asyncFSStorageAgent);
dag.getAttributes().put(LogicalPlan.CHECKPOINT_WINDOW_COUNT, 2);
dag.getAttributes().put(LogicalPlan.STREAMING_WINDOW_SIZE_MILLIS, 300);
dag.getAttributes().put(LogicalPlan.CONTAINERS_MAX_COUNT, 1);
RecoverableInputOperator rip = dag.addOperator("LongGenerator", RecoverableInputOperator.class);
rip.setMaximumTuples(maxTuples);
rip.setSimulateFailure(true);
CollectorOperator cm = dag.addOperator("LongCollector", CollectorOperator.class);
dag.addStream("connection", rip.output, cm.input);
StramLocalCluster lc = new StramLocalCluster(dag);
lc.run();
Assert.assertEquals("Generated Outputs", maxTuples, CollectorOperator.collection.size());
}
@Test
public void testOperatorRecovery() throws Exception
{
RecoverableInputOperator.initGenTuples();
CollectorOperator.collection.clear();
int maxTuples = 30;
LogicalPlan dag = new LogicalPlan();
String workingDir = new File("target/testOperatorRecovery").getAbsolutePath();
AsyncFSStorageAgent asyncFSStorageAgent = new AsyncFSStorageAgent(workingDir, null);
asyncFSStorageAgent.setSyncCheckpoint(true);
dag.setAttribute(Context.OperatorContext.STORAGE_AGENT, asyncFSStorageAgent);
dag.getAttributes().put(LogicalPlan.CHECKPOINT_WINDOW_COUNT, 2);
dag.getAttributes().put(LogicalPlan.STREAMING_WINDOW_SIZE_MILLIS, 300);
dag.getAttributes().put(LogicalPlan.CONTAINERS_MAX_COUNT, 1);
RecoverableInputOperator rip = dag.addOperator("LongGenerator", RecoverableInputOperator.class);
rip.setMaximumTuples(maxTuples);
rip.setSimulateFailure(true);
CollectorOperator cm = dag.addOperator("LongCollector", CollectorOperator.class);
cm.setSimulateFailure(true);
dag.addStream("connection", rip.output, cm.input);
StramLocalCluster lc = new StramLocalCluster(dag);
lc.run();
Assert.assertEquals("Generated Outputs", maxTuples, CollectorOperator.collection.size());
}
@Test
public void testInlineOperatorsRecovery() throws Exception
{
RecoverableInputOperator.initGenTuples();
CollectorOperator.collection.clear();
int maxTuples = 30;
LogicalPlan dag = new LogicalPlan();
String workingDir = new File("target/testOperatorRecovery").getAbsolutePath();
AsyncFSStorageAgent asyncFSStorageAgent = new AsyncFSStorageAgent(workingDir, null);
asyncFSStorageAgent.setSyncCheckpoint(true);
dag.setAttribute(Context.OperatorContext.STORAGE_AGENT, asyncFSStorageAgent);
//dag.getAttributes().get(DAG.HEARTBEAT_INTERVAL_MILLIS, 400);
dag.getAttributes().put(LogicalPlan.CHECKPOINT_WINDOW_COUNT, 2);
dag.getAttributes().put(LogicalPlan.STREAMING_WINDOW_SIZE_MILLIS, 300);
dag.getAttributes().put(LogicalPlan.CONTAINERS_MAX_COUNT, 1);
RecoverableInputOperator rip = dag.addOperator("LongGenerator", RecoverableInputOperator.class);
rip.setMaximumTuples(maxTuples);
rip.setSimulateFailure(true);
CollectorOperator cm = dag.addOperator("LongCollector", CollectorOperator.class);
cm.setSimulateFailure(true);
dag.addStream("connection", rip.output, cm.input).setLocality(Locality.CONTAINER_LOCAL);
StramLocalCluster lc = new StramLocalCluster(dag);
lc.run();
// for (Long l: collection) {
// logger.debug(Codec.getStringWindowId(l));
// }
Assert.assertEquals("Generated Outputs", maxTuples, CollectorOperator.collection.size());
}
}