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MAPREDUCE-5827. TestSpeculativeExecutionWithMRApp fails. Contributed by Zhijie Shen. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1589223 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Chris Nauroth 2014-04-22 18:17:54 +00:00
parent 06c15b6a3e
commit 1dfc9c39b6
2 changed files with 39 additions and 42 deletions
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3
hadoop-mapreduce-project/CHANGES.txt
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@ -185,6 +185,9 @@ Release 2.5.0 - UNRELEASED
MAPREDUCE-5642. TestMiniMRChildTask fails on Windows.
(Chuan Liu via cnauroth)
MAPREDUCE-5827. TestSpeculativeExecutionWithMRApp fails.
(Zhijie Shen via cnauroth)
Release 2.4.1 - UNRELEASED
INCOMPATIBLE CHANGES

78
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/v2/TestSpeculativeExecutionWithMRApp.java
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@ -40,22 +40,26 @@ import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptStatusUpdateEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptStatusUpdateEvent.TaskAttemptStatus;
import org.apache.hadoop.service.Service;
import org.apache.hadoop.test.GenericTestUtils;
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.util.Clock;
import org.apache.hadoop.yarn.util.SystemClock;
import org.junit.Test;
import com.google.common.base.Supplier;
@SuppressWarnings({ "unchecked", "rawtypes" })
public class TestSpeculativeExecutionWithMRApp {
private static final int NUM_MAPPERS = 5;
private static final int NUM_REDUCERS = 0;
@Test(timeout = 60000)
@Test
public void testSpeculateSuccessfulWithoutUpdateEvents() throws Exception {
Clock actualClock = new SystemClock();
ControlledClock clock = new ControlledClock(actualClock);
final ControlledClock clock = new ControlledClock(actualClock);
clock.setTime(System.currentTimeMillis());
MRApp app =
@ -88,7 +92,7 @@ public class TestSpeculativeExecutionWithMRApp {
Random generator = new Random();
Object[] taskValues = tasks.values().toArray();
Task taskToBeSpeculated =
final Task taskToBeSpeculated =
(Task) taskValues[generator.nextInt(taskValues.length)];
// Other than one random task, finish every other task.
@ -105,30 +109,28 @@ public class TestSpeculativeExecutionWithMRApp {
}
}
int maxTimeWait = 10;
boolean successfullySpeculated = false;
TaskAttempt[] ta = null;
while (maxTimeWait > 0 && !successfullySpeculated) {
if (taskToBeSpeculated.getAttempts().size() != 2) {
Thread.sleep(1000);
clock.setTime(System.currentTimeMillis() + 20000);
} else {
successfullySpeculated = true;
// finish 1st TA, 2nd will be killed
ta = makeFirstAttemptWin(appEventHandler, taskToBeSpeculated);
GenericTestUtils.waitFor(new Supplier<Boolean>() {
@Override
public Boolean get() {
if (taskToBeSpeculated.getAttempts().size() != 2) {
clock.setTime(System.currentTimeMillis() + 1000);
return false;
} else {
return true;
}
}
maxTimeWait--;
}
Assert
.assertTrue("Couldn't speculate successfully", successfullySpeculated);
}, 1000, 60000);
// finish 1st TA, 2nd will be killed
TaskAttempt[] ta = makeFirstAttemptWin(appEventHandler, taskToBeSpeculated);
verifySpeculationMessage(app, ta);
app.waitForState(Service.STATE.STOPPED);
}
@Test(timeout = 60000)
@Test
public void testSepculateSuccessfulWithUpdateEvents() throws Exception {
Clock actualClock = new SystemClock();
ControlledClock clock = new ControlledClock(actualClock);
final ControlledClock clock = new ControlledClock(actualClock);
clock.setTime(System.currentTimeMillis());
MRApp app =
@ -200,21 +202,21 @@ public class TestSpeculativeExecutionWithMRApp {
}
}
int maxTimeWait = 5;
boolean successfullySpeculated = false;
TaskAttempt[] ta = null;
while (maxTimeWait > 0 && !successfullySpeculated) {
if (speculatedTask.getAttempts().size() != 2) {
Thread.sleep(1000);
} else {
successfullySpeculated = true;
ta = makeFirstAttemptWin(appEventHandler, speculatedTask);
final Task speculatedTaskConst = speculatedTask;
GenericTestUtils.waitFor(new Supplier<Boolean>() {
@Override
public Boolean get() {
if (speculatedTaskConst.getAttempts().size() != 2) {
clock.setTime(System.currentTimeMillis() + 1000);
return false;
} else {
return true;
}
}
maxTimeWait--;
}
Assert
.assertTrue("Couldn't speculate successfully", successfullySpeculated);
}, 1000, 60000);
TaskAttempt[] ta = makeFirstAttemptWin(appEventHandler, speculatedTask);
verifySpeculationMessage(app, ta);
app.waitForState(Service.STATE.STOPPED);
}
private static TaskAttempt[] makeFirstAttemptWin(
@ -234,15 +236,7 @@ public class TestSpeculativeExecutionWithMRApp {
private static void verifySpeculationMessage(MRApp app, TaskAttempt[] ta)
throws Exception {
app.waitForState(ta[0], TaskAttemptState.SUCCEEDED);
app.waitForState(ta[1], TaskAttemptState.KILLED);
boolean foundSpecMsg = false;
for (String msg : ta[1].getDiagnostics()) {
if (msg.contains("Speculation")) {
foundSpecMsg = true;
break;
}
}
Assert.assertTrue("No speculation diagnostics!", foundSpecMsg);
// The speculative attempt may be not killed before the MR job succeeds.
}
private TaskAttemptStatus createTaskAttemptStatus(TaskAttemptId id,