diff --git a/hadoop-mapreduce-project/CHANGES.txt b/hadoop-mapreduce-project/CHANGES.txt
index b083d00a6cb..06975343511 100644
--- a/hadoop-mapreduce-project/CHANGES.txt
+++ b/hadoop-mapreduce-project/CHANGES.txt
@@ -95,6 +95,9 @@ Release 2.8.0 - UNRELEASED
MAPREDUCE-6293. Set job classloader on uber-job's LocalContainerLauncher
event thread. (Sangjin Lee via gera)
+ MAPREDUCE-6297. Task Id of the failed task in diagnostics should link to
+ the task page. (Siqi Li via gera)
+
Release 2.7.1 - UNRELEASED
INCOMPATIBLE CHANGES
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/TaskID.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/TaskID.java
index 488ffcc62e4..b9817dd16e3 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/TaskID.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/TaskID.java
@@ -25,6 +25,8 @@
import java.util.EnumMap;
import java.util.HashMap;
import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
@@ -58,6 +60,9 @@
public class TaskID extends org.apache.hadoop.mapred.ID {
protected static final String TASK = "task";
protected static final NumberFormat idFormat = NumberFormat.getInstance();
+ public static final String TASK_ID_REGEX = TASK + "_(\\d+)_(\\d+)_" +
+ CharTaskTypeMaps.allTaskTypes + "_(\\d+)";
+ public static final Pattern taskIdPattern = Pattern.compile(TASK_ID_REGEX);
static {
idFormat.setGroupingUsed(false);
idFormat.setMinimumIntegerDigits(6);
@@ -207,29 +212,15 @@ public static TaskID forName(String str)
throws IllegalArgumentException {
if(str == null)
return null;
- String exceptionMsg = null;
- try {
- String[] parts = str.split("_");
- if(parts.length == 5) {
- if(parts[0].equals(TASK)) {
- String type = parts[3];
- TaskType t = CharTaskTypeMaps.getTaskType(type.charAt(0));
- if(t != null) {
-
- return new org.apache.hadoop.mapred.TaskID(parts[1],
- Integer.parseInt(parts[2]),
- t,
- Integer.parseInt(parts[4]));
- } else
- exceptionMsg = "Bad TaskType identifier. TaskId string : " + str
- + " is not properly formed.";
- }
- }
- }catch (Exception ex) {//fall below
- }
- if (exceptionMsg == null) {
- exceptionMsg = "TaskId string : " + str + " is not properly formed";
+ Matcher m = taskIdPattern.matcher(str);
+ if (m.matches()) {
+ return new org.apache.hadoop.mapred.TaskID(m.group(1),
+ Integer.parseInt(m.group(2)),
+ CharTaskTypeMaps.getTaskType(m.group(3).charAt(0)),
+ Integer.parseInt(m.group(4)));
}
+ String exceptionMsg = "TaskId string : " + str + " is not properly formed" +
+ "\nReason: " + m.toString();
throw new IllegalArgumentException(exceptionMsg);
}
/**
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/HsJobBlock.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/HsJobBlock.java
index 4a13e0be728..f3341a68587 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/HsJobBlock.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/HsJobBlock.java
@@ -27,6 +27,7 @@
import java.util.Date;
import java.util.List;
+import org.apache.hadoop.mapreduce.TaskID;
import org.apache.hadoop.mapreduce.v2.api.records.AMInfo;
import org.apache.hadoop.mapreduce.v2.api.records.JobId;
import org.apache.hadoop.mapreduce.v2.app.AppContext;
@@ -98,7 +99,7 @@ public class HsJobBlock extends HtmlBlock {
if(diagnostics != null && !diagnostics.isEmpty()) {
StringBuffer b = new StringBuffer();
for(String diag: diagnostics) {
- b.append(diag);
+ b.append(addTaskLinks(diag));
}
infoBlock._("Diagnostics:", b.toString());
}
@@ -203,4 +204,9 @@ public class HsJobBlock extends HtmlBlock {
_().
_();
}
+
+ static String addTaskLinks(String text) {
+ return TaskID.taskIdPattern.matcher(text).replaceAll(
+ "$0");
+ }
}
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestBlocks.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestBlocks.java
index 723136769e6..b82965a38e8 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestBlocks.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestBlocks.java
@@ -65,6 +65,7 @@
import org.apache.hadoop.yarn.webapp.view.BlockForTest;
import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
import org.apache.hadoop.yarn.webapp.view.HtmlBlock.Block;
+import org.junit.Assert;
import org.junit.Test;
import static org.junit.Assert.*;
@@ -78,6 +79,23 @@
public class TestBlocks {
private ByteArrayOutputStream data = new ByteArrayOutputStream();
+ @Test
+ public void testPullTaskLink(){
+ Task task = getTask(0);
+ String taskId = task.getID().toString();
+
+ Assert.assertEquals("pull links doesn't work correctly",
+ "Task failed " +
+ taskId + ""
+ , HsJobBlock.addTaskLinks("Task failed " + taskId));
+
+ Assert.assertEquals("pull links doesn't work correctly",
+ "Task failed " +
+ taskId + "\n Job failed as tasks failed. failedMaps:1 failedReduces:0"
+ , HsJobBlock.addTaskLinks("Task failed " + taskId + "\n " +
+ "Job failed as tasks failed. failedMaps:1 failedReduces:0"));
+ }
+
/**
* test HsTasksBlock's rendering.
*/
@@ -241,7 +259,7 @@ public void testHsController() throws Exception {
assertEquals(HsAttemptsPage.class, controller.attemptsPage());
controller.set(AMParams.JOB_ID, "job_01_01");
- controller.set(AMParams.TASK_ID, "task_01_01_m01_01");
+ controller.set(AMParams.TASK_ID, "task_01_01_m_01");
controller.set(AMParams.TASK_TYPE, "m");
controller.set(AMParams.ATTEMPT_STATE, "State");
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestHsWebServicesTasks.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestHsWebServicesTasks.java
index ee0ccc6afcf..22fa46a47ce 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestHsWebServicesTasks.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestHsWebServicesTasks.java
@@ -33,6 +33,7 @@
import javax.xml.parsers.DocumentBuilderFactory;
import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.mapreduce.TaskID;
import org.apache.hadoop.mapreduce.v2.api.records.JobId;
import org.apache.hadoop.mapreduce.v2.api.records.TaskId;
import org.apache.hadoop.mapreduce.v2.api.records.TaskReport;
@@ -368,9 +369,11 @@ public void testTaskIdBogus() throws JSONException, Exception {
String message = exception.getString("message");
String type = exception.getString("exception");
String classname = exception.getString("javaClassName");
- WebServicesTestUtils.checkStringMatch("exception message",
+ WebServicesTestUtils.checkStringEqual("exception message",
"java.lang.Exception: TaskId string : "
- + "bogustaskid is not properly formed", message);
+ + "bogustaskid is not properly formed"
+ + "\nReason: java.util.regex.Matcher[pattern=" +
+ TaskID.TASK_ID_REGEX + " region=0,11 lastmatch=]", message);
WebServicesTestUtils.checkStringMatch("exception type",
"NotFoundException", type);
WebServicesTestUtils.checkStringMatch("exception classname",
@@ -432,9 +435,11 @@ public void testTaskIdInvalid() throws JSONException, Exception {
String message = exception.getString("message");
String type = exception.getString("exception");
String classname = exception.getString("javaClassName");
- WebServicesTestUtils.checkStringMatch("exception message",
- "java.lang.Exception: Bad TaskType identifier. TaskId string : "
- + "task_0_0000_d_000000 is not properly formed.", message);
+ WebServicesTestUtils.checkStringEqual("exception message",
+ "java.lang.Exception: TaskId string : "
+ + "task_0_0000_d_000000 is not properly formed" +
+ "\nReason: java.util.regex.Matcher[pattern=" +
+ TaskID.TASK_ID_REGEX + " region=0,20 lastmatch=]", message);
WebServicesTestUtils.checkStringMatch("exception type",
"NotFoundException", type);
WebServicesTestUtils.checkStringMatch("exception classname",
@@ -464,9 +469,11 @@ public void testTaskIdInvalid2() throws JSONException, Exception {
String message = exception.getString("message");
String type = exception.getString("exception");
String classname = exception.getString("javaClassName");
- WebServicesTestUtils.checkStringMatch("exception message",
+ WebServicesTestUtils.checkStringEqual("exception message",
"java.lang.Exception: TaskId string : "
- + "task_0000_m_000000 is not properly formed", message);
+ + "task_0000_m_000000 is not properly formed" +
+ "\nReason: java.util.regex.Matcher[pattern=" +
+ TaskID.TASK_ID_REGEX + " region=0,18 lastmatch=]", message);
WebServicesTestUtils.checkStringMatch("exception type",
"NotFoundException", type);
WebServicesTestUtils.checkStringMatch("exception classname",
@@ -496,9 +503,11 @@ public void testTaskIdInvalid3() throws JSONException, Exception {
String message = exception.getString("message");
String type = exception.getString("exception");
String classname = exception.getString("javaClassName");
- WebServicesTestUtils.checkStringMatch("exception message",
+ WebServicesTestUtils.checkStringEqual("exception message",
"java.lang.Exception: TaskId string : "
- + "task_0_0000_m is not properly formed", message);
+ + "task_0_0000_m is not properly formed" +
+ "\nReason: java.util.regex.Matcher[pattern=" +
+ TaskID.TASK_ID_REGEX + " region=0,13 lastmatch=]", message);
WebServicesTestUtils.checkStringMatch("exception type",
"NotFoundException", type);
WebServicesTestUtils.checkStringMatch("exception classname",