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MAPREDUCE-5171. Expose blacklisted nodes from the MR AM REST API. (sandyr via tucu) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1493603 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Alejandro Abdelnur 2013-06-16 22:20:45 +00:00
parent 1d116f7178
commit c71d86cd7c
9 changed files with 148 additions and 2 deletions
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3
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/AppContext.java
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@ -19,6 +19,7 @@
package org.apache.hadoop.mapreduce.v2.app;
import java.util.Map;
import java.util.Set;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.mapreduce.v2.api.records.JobId;
@ -56,4 +57,6 @@ public interface AppContext {
Clock getClock();
ClusterInfo getClusterInfo();
Set<String> getBlacklistedNodes();
}

7
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/MRAppMaster.java
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@ -29,6 +29,7 @@ import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.commons.io.IOUtils;
@ -95,6 +96,7 @@ import org.apache.hadoop.mapreduce.v2.app.rm.ContainerAllocator;
import org.apache.hadoop.mapreduce.v2.app.rm.ContainerAllocatorEvent;
import org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator;
import org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator;
import org.apache.hadoop.mapreduce.v2.app.rm.RMContainerRequestor;
import org.apache.hadoop.mapreduce.v2.app.rm.RMHeartbeatHandler;
import org.apache.hadoop.mapreduce.v2.app.speculate.DefaultSpeculator;
import org.apache.hadoop.mapreduce.v2.app.speculate.Speculator;
@ -937,6 +939,11 @@ public class MRAppMaster extends CompositeService {
public ClusterInfo getClusterInfo() {
return this.clusterInfo;
}
@Override
public Set<String> getBlacklistedNodes() {
return ((RMContainerRequestor) containerAllocator).getBlacklistedNodes();
}
}
@SuppressWarnings("unchecked")

4
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/rm/RMContainerRequestor.java
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@ -424,4 +424,8 @@ public abstract class RMContainerRequestor extends RMCommunicator {
hosts, orig.racks, orig.priority);
return newReq;
}
public Set<String> getBlacklistedNodes() {
return blacklistedNodes;
}
}

9
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/AMWebServices.java
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@ -45,6 +45,7 @@ import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
import org.apache.hadoop.mapreduce.v2.app.webapp.dao.AppInfo;
import org.apache.hadoop.mapreduce.v2.app.webapp.dao.AMAttemptInfo;
import org.apache.hadoop.mapreduce.v2.app.webapp.dao.AMAttemptsInfo;
import org.apache.hadoop.mapreduce.v2.app.webapp.dao.BlacklistedNodesInfo;
import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfInfo;
import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobCounterInfo;
import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobInfo;
@ -216,6 +217,14 @@ public class AMWebServices {
init();
return new AppInfo(this.app, this.app.context);
}
@GET
@Path("/blacklistednodes")
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
public BlacklistedNodesInfo getBlacklistedNodes() {
init();
return new BlacklistedNodesInfo(this.app.context);
}
@GET
@Path("/jobs")

42
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/BlacklistedNodesInfo.java Normal file
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@ -0,0 +1,42 @@
/**
* 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.hadoop.mapreduce.v2.app.webapp.dao;
import java.util.Set;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;
import org.apache.hadoop.mapreduce.v2.app.AppContext;
@XmlRootElement(name = "blacklistednodesinfo")
@XmlAccessorType(XmlAccessType.FIELD)
public class BlacklistedNodesInfo {
private Set<String> blacklistedNodes;
public BlacklistedNodesInfo() { }
public BlacklistedNodesInfo(AppContext appContext) {
blacklistedNodes = appContext.getBlacklistedNodes();
}
public Set<String> getBlacklistedNodes() {
return blacklistedNodes;
}
}

13
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/MockAppContext.java
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@ -19,6 +19,7 @@
package org.apache.hadoop.mapreduce.v2.app;
import java.util.Map;
import java.util.Set;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapreduce.v2.api.records.JobId;
@ -37,7 +38,8 @@ public class MockAppContext implements AppContext {
final String user = MockJobs.newUserName();
final Map<JobId, Job> jobs;
final long startTime = System.currentTimeMillis();
Set<String> blacklistedNodes;
public MockAppContext(int appid) {
appID = MockJobs.newAppID(appid);
appAttemptID = ApplicationAttemptId.newInstance(appID, 0);
@ -115,4 +117,13 @@ public class MockAppContext implements AppContext {
return null;
}
@Override
public Set<String> getBlacklistedNodes() {
return blacklistedNodes;
}
public void setBlacklistedNodes(Set<String> blacklistedNodes) {
this.blacklistedNodes = blacklistedNodes;
}
}

6
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestRuntimeEstimators.java
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@ -24,6 +24,7 @@ import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
@ -850,5 +851,10 @@ public class TestRuntimeEstimators {
public ClusterInfo getClusterInfo() {
return new ClusterInfo();
}
@Override
public Set<String> getBlacklistedNodes() {
return null;
}
}
}

59
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/webapp/TestAMWebServices.java
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@ -23,6 +23,7 @@ import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.StringReader;
import java.util.Set;
import javax.ws.rs.core.MediaType;
import javax.xml.parsers.DocumentBuilder;
@ -33,6 +34,7 @@ import org.apache.hadoop.mapreduce.v2.app.AppContext;
import org.apache.hadoop.mapreduce.v2.app.MockAppContext;
import org.apache.hadoop.yarn.webapp.GenericExceptionHandler;
import org.apache.hadoop.yarn.webapp.WebServicesTestUtils;
import org.codehaus.jettison.json.JSONArray;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;
import org.junit.Before;
@ -42,6 +44,7 @@ import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import com.google.common.collect.Sets;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.servlet.GuiceServletContextListener;
@ -64,13 +67,15 @@ import com.sun.jersey.test.framework.WebAppDescriptor;
public class TestAMWebServices extends JerseyTest {
private static Configuration conf = new Configuration();
private static AppContext appContext;
private static MockAppContext appContext;
private Injector injector = Guice.createInjector(new ServletModule() {
@Override
protected void configureServlets() {
appContext = new MockAppContext(0, 1, 1, 1);
appContext.setBlacklistedNodes(Sets.newHashSet("badnode1", "badnode2"));
bind(JAXBContextResolver.class);
bind(AMWebServices.class);
bind(GenericExceptionHandler.class);
@ -240,6 +245,29 @@ public class TestAMWebServices extends JerseyTest {
"error string exists and shouldn't", "", responseStr);
}
}
@Test
public void testBlacklistedNodes() throws JSONException, Exception {
WebResource r = resource();
ClientResponse response = r.path("ws").path("v1").path("mapreduce")
.path("blacklistednodes").accept(MediaType.APPLICATION_JSON)
.get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
JSONObject json = response.getEntity(JSONObject.class);
assertEquals("incorrect number of elements", 1, json.length());
verifyBlacklistedNodesInfo(json, appContext);
}
@Test
public void testBlacklistedNodesXML() throws Exception {
WebResource r = resource();
ClientResponse response = r.path("ws").path("v1").path("mapreduce")
.path("blacklistednodes").accept(MediaType.APPLICATION_XML)
.get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_XML_TYPE, response.getType());
String xml = response.getEntity(String.class);
verifyBlacklistedNodesInfoXML(xml, appContext);
}
public void verifyAMInfo(JSONObject info, AppContext ctx)
throws JSONException {
@ -285,4 +313,33 @@ public class TestAMWebServices extends JerseyTest {
assertTrue("elapsedTime not greater then 0", (elapsedTime > 0));
}
public void verifyBlacklistedNodesInfo(JSONObject blacklist, AppContext ctx)
throws JSONException, Exception{
JSONArray array = blacklist.getJSONArray("blacklistedNodes");
assertEquals(array.length(), ctx.getBlacklistedNodes().size());
for (int i = 0; i < array.length(); i++) {
assertTrue(ctx.getBlacklistedNodes().contains(array.getString(i)));
}
}
public void verifyBlacklistedNodesInfoXML(String xml, AppContext ctx)
throws JSONException, Exception {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xml));
Document dom = db.parse(is);
NodeList infonodes = dom.getElementsByTagName("blacklistednodesinfo");
assertEquals("incorrect number of elements", 1, infonodes.getLength());
NodeList nodes = dom.getElementsByTagName("blacklistedNodes");
Set<String> blacklistedNodes = ctx.getBlacklistedNodes();
assertEquals("incorrect number of elements", blacklistedNodes.size(),
nodes.getLength());
for (int i = 0; i < nodes.getLength(); i++) {
Element element = (Element) nodes.item(i);
assertTrue(
blacklistedNodes.contains(element.getFirstChild().getNodeValue()));
}
}
}

7
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/JobHistory.java
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@ -21,6 +21,7 @@ package org.apache.hadoop.mapreduce.v2.hs;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.regex.Pattern;
@ -301,4 +302,10 @@ public class JobHistory extends AbstractService implements HistoryContext {
public ClusterInfo getClusterInfo() {
return null;
}
// TODO AppContext - Not Required
@Override
public Set<String> getBlacklistedNodes() {
return null;
}
}