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YARN-7836. Added error check for updating service components. 

(Contributed by Gour Saha)
This commit is contained in:
Eric Yang 2018-02-22 16:08:30 -05:00
parent 84a1321f6a
commit 190969006d
2 changed files with 75 additions and 17 deletions
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23
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services-api/src/main/java/org/apache/hadoop/yarn/service/webapp/ApiServer.java
View File

@ -280,14 +280,25 @@ public class ApiServer {
@PathParam(COMPONENT_NAME) String componentName, Component component) {
try {
UserGroupInformation ugi = getProxyUser(request);
if (component == null) {
throw new YarnException("No component data provided");
}
if (component.getName() != null
&& !component.getName().equals(componentName)) {
String msg = "Component name in the request object ("
+ component.getName() + ") does not match that in the URI path ("
+ componentName + ")";
throw new YarnException(msg);
}
if (component.getNumberOfContainers() == null) {
throw new YarnException("No container count provided");
}
if (component.getNumberOfContainers() < 0) {
String message =
"Service = " + appName + ", Component = " + component.getName()
+ ": Invalid number of containers specified " + component
.getNumberOfContainers();
String message = "Invalid number of containers specified "
+ component.getNumberOfContainers();
throw new YarnException(message);
}
UserGroupInformation ugi = getProxyUser(request);
Map<String, Long> original = ugi
.doAs(new PrivilegedExceptionAction<Map<String, Long>>() {
@Override
@ -296,7 +307,7 @@ public class ApiServer {
sc.init(YARN_CONFIG);
sc.start();
Map<String, Long> original = sc.flexByRestService(appName,
Collections.singletonMap(component.getName(),
Collections.singletonMap(componentName,
component.getNumberOfContainers()));
sc.close();
return original;

69
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services-api/src/test/java/org/apache/hadoop/yarn/service/TestApiServer.java
View File

@ -17,6 +17,16 @@
package org.apache.hadoop.yarn.service;
import static org.junit.Assert.*;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.Path;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.yarn.service.api.records.Artifact;
import org.apache.hadoop.yarn.service.api.records.Artifact.TypeEnum;
@ -24,23 +34,13 @@ import org.apache.hadoop.yarn.service.api.records.Component;
import org.apache.hadoop.yarn.service.api.records.Resource;
import org.apache.hadoop.yarn.service.api.records.Service;
import org.apache.hadoop.yarn.service.api.records.ServiceState;
import org.apache.hadoop.yarn.service.api.records.ServiceStatus;
import org.apache.hadoop.yarn.service.client.ServiceClient;
import org.apache.hadoop.yarn.service.webapp.ApiServer;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.Path;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
import java.util.ArrayList;
import java.util.List;
import static org.junit.Assert.*;
/**
* Test case for ApiServer REST API.
*
@ -370,4 +370,51 @@ public class TestApiServer {
Response.status(Status.BAD_REQUEST)
.build().getStatus());
}
@Test
public void testUpdateComponent() {
Response actual = apiServer.updateComponent(request, "jenkins",
"jenkins-master", null);
ServiceStatus serviceStatus = (ServiceStatus) actual.getEntity();
assertEquals("Update component should have failed with 400 bad request",
Response.status(Status.BAD_REQUEST).build().getStatus(),
actual.getStatus());
assertEquals("Update component should have failed with no data error",
"No component data provided", serviceStatus.getDiagnostics());
Component comp = new Component();
actual = apiServer.updateComponent(request, "jenkins", "jenkins-master",
comp);
serviceStatus = (ServiceStatus) actual.getEntity();
assertEquals("Update component should have failed with 400 bad request",
Response.status(Status.BAD_REQUEST).build().getStatus(),
actual.getStatus());
assertEquals("Update component should have failed with no count error",
"No container count provided", serviceStatus.getDiagnostics());
comp.setNumberOfContainers(-1L);
actual = apiServer.updateComponent(request, "jenkins", "jenkins-master",
comp);
serviceStatus = (ServiceStatus) actual.getEntity();
assertEquals("Update component should have failed with 400 bad request",
Response.status(Status.BAD_REQUEST).build().getStatus(),
actual.getStatus());
assertEquals("Update component should have failed with no count error",
"Invalid number of containers specified -1", serviceStatus.getDiagnostics());
comp.setName("jenkins-slave");
comp.setNumberOfContainers(1L);
actual = apiServer.updateComponent(request, "jenkins", "jenkins-master",
comp);
serviceStatus = (ServiceStatus) actual.getEntity();
assertEquals("Update component should have failed with 400 bad request",
Response.status(Status.BAD_REQUEST).build().getStatus(),
actual.getStatus());
assertEquals(
"Update component should have failed with component name mismatch "
+ "error",
"Component name in the request object (jenkins-slave) does not match "
+ "that in the URI path (jenkins-master)",
serviceStatus.getDiagnostics());
}
}