/**
* Copyright (c) 2010 Yahoo! Inc. All rights reserved.
* Licensed 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. See accompanying LICENSE file.
*/
package org.apache.oozie.command.wf;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.Date;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapred.JobClient;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.JobID;
import org.apache.hadoop.mapred.RunningJob;
import org.apache.oozie.WorkflowActionBean;
import org.apache.oozie.WorkflowJobBean;
import org.apache.oozie.action.hadoop.LauncherMapper;
import org.apache.oozie.action.hadoop.MapReduceActionExecutor;
import org.apache.oozie.action.hadoop.MapperReducerForTest;
import org.apache.oozie.client.WorkflowAction;
import org.apache.oozie.client.WorkflowJob;
import org.apache.oozie.command.XCommand;
import org.apache.oozie.command.wf.ActionXCommand.ActionExecutorContext;
import org.apache.oozie.executor.jpa.JPAExecutorException;
import org.apache.oozie.executor.jpa.WorkflowActionGetJPAExecutor;
import org.apache.oozie.executor.jpa.WorkflowActionInsertJPAExecutor;
import org.apache.oozie.service.HadoopAccessorService;
import org.apache.oozie.service.InstrumentationService;
import org.apache.oozie.service.JPAService;
import org.apache.oozie.service.Services;
import org.apache.oozie.service.UUIDService;
import org.apache.oozie.test.XDataTestCase;
import org.apache.oozie.util.Instrumentation;
import org.apache.oozie.util.XmlUtils;
import org.apache.oozie.workflow.WorkflowInstance;
public class TestActionCheckXCommand extends XDataTestCase {
private Services services;
@Override
protected void setUp() throws Exception {
super.setUp();
services = new Services();
services.init();
cleanUpDBTables();
}
@Override
protected void tearDown() throws Exception {
services.destroy();
super.tearDown();
}
/**
* Test : verify the PreconditionException is thrown when actionCheckDelay > 0
*
* @throws Exception
*/
public void testActionCheckPreCondition1() throws Exception {
Instrumentation inst = Services.get().get(InstrumentationService.class).get();
WorkflowJobBean job = this.addRecordToWfJobTable(WorkflowJob.Status.RUNNING, WorkflowInstance.Status.RUNNING);
WorkflowActionBean action = this.addRecordToWfActionTable(job.getId(), "1", WorkflowAction.Status.PREP);
ActionCheckXCommand checkCmd = new ActionCheckXCommand(action.getId(), 10);
Long counterVal = new Long(0);
try {
counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
} catch (NullPointerException e){
//counter might be null
}
assertEquals(new Long(0), new Long(counterVal));
checkCmd.call();
//precondition failed because of actionCheckDelay > 0
counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
assertEquals(new Long(1), new Long(counterVal));
}
/**
* Test : verify the PreconditionException is thrown when pending = false
*
* @throws Exception
*/
public void testActionCheckPreCondition2() throws Exception {
Instrumentation inst = Services.get().get(InstrumentationService.class).get();
WorkflowJobBean job = this.addRecordToWfJobTable(WorkflowJob.Status.RUNNING, WorkflowInstance.Status.RUNNING);
WorkflowActionBean action = super.addRecordToWfActionTable(job.getId(), "1", WorkflowAction.Status.RUNNING);
ActionCheckXCommand checkCmd = new ActionCheckXCommand(action.getId());
Long counterVal = new Long(0);
try {
counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
} catch (NullPointerException e){
//counter might be null
}
assertEquals(new Long(0), new Long(counterVal));
checkCmd.call();
//precondition failed because of pending = false
counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
assertEquals(new Long(1), new Long(counterVal));
}
/**
* Test : verify the PreconditionException is thrown when action != RUNNING
*
* @throws Exception
*/
public void testActionCheckPreCondition3() throws Exception {
Instrumentation inst = Services.get().get(InstrumentationService.class).get();
WorkflowJobBean job = this.addRecordToWfJobTable(WorkflowJob.Status.RUNNING, WorkflowInstance.Status.RUNNING);
WorkflowActionBean action = this.addRecordToWfActionTable(job.getId(), "1", WorkflowAction.Status.PREP);
ActionCheckXCommand checkCmd = new ActionCheckXCommand(action.getId());
Long counterVal = new Long(0);
try{
counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
} catch (NullPointerException e){
//counter might be null
}
assertEquals(new Long(0), new Long(counterVal));
checkCmd.call();
//precondition failed because of action != RUNNING
counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
assertEquals(new Long(1), new Long(counterVal));
}
/**
* Test : verify the PreconditionException is thrown when job != RUNNING
*
* @throws Exception
*/
public void testActionCheckPreCondition4() throws Exception {
Instrumentation inst = Services.get().get(InstrumentationService.class).get();
WorkflowJobBean job = this.addRecordToWfJobTable(WorkflowJob.Status.FAILED, WorkflowInstance.Status.FAILED);
WorkflowActionBean action = this.addRecordToWfActionTable(job.getId(), "1", WorkflowAction.Status.PREP);
ActionCheckXCommand checkCmd = new ActionCheckXCommand(action.getId());
Long counterVal = new Long(0);
try {
counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
} catch (NullPointerException e){
//counter might be null
}
assertEquals(new Long(0), new Long(counterVal));
checkCmd.call();
//precondition failed because of job != RUNNING
counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
assertEquals(new Long(1), new Long(counterVal));
}
@SuppressWarnings("deprecation")
public void testActionCheck() throws Exception {
JPAService jpaService = Services.get().get(JPAService.class);
WorkflowJobBean job = this.addRecordToWfJobTable(WorkflowJob.Status.RUNNING, WorkflowInstance.Status.RUNNING);
WorkflowActionBean action = this.addRecordToWfActionTable(job.getId(), "1", WorkflowAction.Status.PREP);
WorkflowActionGetJPAExecutor wfActionGetCmd = new WorkflowActionGetJPAExecutor(action.getId());
new ActionStartXCommand(action.getId(), "map-reduce").call();
action = jpaService.execute(wfActionGetCmd);
ActionExecutorContext context = new ActionXCommand.ActionExecutorContext(job, action, false);
MapReduceActionExecutor actionExecutor = new MapReduceActionExecutor();
Configuration conf = actionExecutor.createBaseHadoopConf(context, XmlUtils.parseXml(action.getConf()));
String user = conf.get("user.name");
String group = conf.get("group.name");
JobClient jobClient = Services.get().get(HadoopAccessorService.class).createJobClient(user, group, new JobConf(conf));
String launcherId = action.getExternalId();
final RunningJob launcherJob = jobClient.getJob(JobID.forName(launcherId));
waitFor(120 * 1000, new Predicate() {
public boolean evaluate() throws Exception {
return launcherJob.isComplete();
}
});
assertTrue(launcherJob.isSuccessful());
assertTrue(LauncherMapper.hasIdSwap(launcherJob));
new ActionCheckXCommand(action.getId()).call();
action = jpaService.execute(wfActionGetCmd);
String mapperId = action.getExternalId();
assertFalse(launcherId.equals(mapperId));
final RunningJob mrJob = jobClient.getJob(JobID.forName(mapperId));
waitFor(120 * 1000, new Predicate() {
public boolean evaluate() throws Exception {
return mrJob.isComplete();
}
});
assertTrue(mrJob.isSuccessful());
new ActionCheckXCommand(action.getId()).call();
action = jpaService.execute(wfActionGetCmd);
assertEquals("SUCCEEDED", action.getExternalStatus());
}
@Override
protected WorkflowActionBean addRecordToWfActionTable(String wfId, String actionName, WorkflowAction.Status status) throws Exception {
WorkflowActionBean action = createWorkflowActionSetPending(wfId, status);
try {
JPAService jpaService = Services.get().get(JPAService.class);
assertNotNull(jpaService);
WorkflowActionInsertJPAExecutor actionInsertCmd = new WorkflowActionInsertJPAExecutor(action);
jpaService.execute(actionInsertCmd);
}
catch (JPAExecutorException ce) {
ce.printStackTrace();
fail("Unable to insert the test wf action record to table");
throw ce;
}
return action;
}
protected WorkflowActionBean createWorkflowActionSetPending(String wfId, WorkflowAction.Status status) throws Exception {
WorkflowActionBean action = new WorkflowActionBean();
String actionname = "testAction";
action.setName(actionname);
action.setCred("null");
action.setId(Services.get().get(UUIDService.class).generateChildId(wfId, actionname));
action.setJobId(wfId);
action.setType("map-reduce");
action.setTransition("transition");
action.setStatus(status);
action.setStartTime(new Date());
action.setEndTime(new Date());
action.setLastCheckTime(new Date());
action.setPending();
Path inputDir = new Path(getFsTestCaseDir(), "input");
Path outputDir = new Path(getFsTestCaseDir(), "output");
FileSystem fs = getFileSystem();
Writer w = new OutputStreamWriter(fs.create(new Path(inputDir, "data.txt")));
w.write("dummy\n");
w.write("dummy\n");
w.close();
String actionXml = "<map-reduce>" +
"<job-tracker>" + getJobTrackerUri() + "</job-tracker>" +
"<name-node>" + getNameNodeUri() + "</name-node>" +
"<configuration>" +
"<property><name>mapred.mapper.class</name><value>" + MapperReducerForTest.class.getName() +
"</value></property>" +
"<property><name>mapred.reducer.class</name><value>" + MapperReducerForTest.class.getName() +
"</value></property>" +
"<property><name>mapred.input.dir</name><value>"+inputDir.toString()+"</value></property>" +
"<property><name>mapred.output.dir</name><value>"+outputDir.toString()+"</value></property>" +
"</configuration>" +
"</map-reduce>";
action.setConf(actionXml);
return action;
}
}