/**
* 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.util.Date;
import javax.servlet.jsp.el.ELException;
import org.apache.hadoop.conf.Configuration;
import org.apache.oozie.ErrorCode;
import org.apache.oozie.FaultInjection;
import org.apache.oozie.WorkflowActionBean;
import org.apache.oozie.WorkflowJobBean;
import org.apache.oozie.XException;
import org.apache.oozie.action.ActionExecutor;
import org.apache.oozie.action.ActionExecutorException;
import org.apache.oozie.client.OozieClient;
import org.apache.oozie.client.WorkflowAction;
import org.apache.oozie.client.WorkflowJob;
import org.apache.oozie.client.SLAEvent.SlaAppType;
import org.apache.oozie.client.SLAEvent.Status;
import org.apache.oozie.command.CommandException;
import org.apache.oozie.command.PreconditionException;
import org.apache.oozie.command.coord.CoordActionUpdateXCommand;
import org.apache.oozie.executor.jpa.JPAExecutorException;
import org.apache.oozie.executor.jpa.WorkflowActionGetJPAExecutor;
import org.apache.oozie.executor.jpa.WorkflowActionUpdateJPAExecutor;
import org.apache.oozie.executor.jpa.WorkflowJobGetJPAExecutor;
import org.apache.oozie.executor.jpa.WorkflowJobUpdateJPAExecutor;
import org.apache.oozie.service.ActionService;
import org.apache.oozie.service.JPAService;
import org.apache.oozie.service.Services;
import org.apache.oozie.service.UUIDService;
import org.apache.oozie.util.ELEvaluationException;
import org.apache.oozie.util.Instrumentation;
import org.apache.oozie.util.LogUtils;
import org.apache.oozie.util.XLog;
import org.apache.oozie.util.XmlUtils;
import org.apache.oozie.util.db.SLADbXOperations;
public class ActionStartXCommand extends ActionXCommand<Void> {
public static final String EL_ERROR = "EL_ERROR";
public static final String EL_EVAL_ERROR = "EL_EVAL_ERROR";
public static final String COULD_NOT_START = "COULD_NOT_START";
public static final String START_DATA_MISSING = "START_DATA_MISSING";
public static final String EXEC_DATA_MISSING = "EXEC_DATA_MISSING";
private String jobId = null;
private String actionId = null;
private WorkflowJobBean wfJob = null;
private WorkflowActionBean wfAction = null;
private JPAService jpaService = null;
private ActionExecutor executor = null;
public ActionStartXCommand(String actionId, String type) {
super("action.start", type, 0);
this.actionId = actionId;
this.jobId = Services.get().get(UUIDService.class).getId(actionId);
}
@Override
protected boolean isLockRequired() {
return true;
}
@Override
protected String getEntityKey() {
return this.jobId;
}
@Override
protected void loadState() throws CommandException {
try {
jpaService = Services.get().get(JPAService.class);
if (jpaService != null) {
this.wfJob = jpaService.execute(new WorkflowJobGetJPAExecutor(jobId));
this.wfAction = jpaService.execute(new WorkflowActionGetJPAExecutor(actionId));
LogUtils.setLogInfo(wfJob, logInfo);
LogUtils.setLogInfo(wfAction, logInfo);
}
else {
throw new CommandException(ErrorCode.E0610);
}
}
catch (XException ex) {
throw new CommandException(ex);
}
}
@Override
protected void verifyPrecondition() throws CommandException, PreconditionException {
if (wfJob == null) {
throw new PreconditionException(ErrorCode.E0604, jobId);
}
if (wfAction == null) {
throw new PreconditionException(ErrorCode.E0605, actionId);
}
if (wfAction.isPending()
&& (wfAction.getStatus() == WorkflowActionBean.Status.PREP
|| wfAction.getStatus() == WorkflowActionBean.Status.START_RETRY || wfAction.getStatus() == WorkflowActionBean.Status.START_MANUAL)) {
if (wfJob.getStatus() != WorkflowJob.Status.RUNNING) {
throw new PreconditionException(ErrorCode.E0810, WorkflowJob.Status.RUNNING.toString());
}
}
else {
throw new PreconditionException(ErrorCode.E0816, wfAction.getPending(), wfAction.getStatusStr());
}
executor = Services.get().get(ActionService.class).getExecutor(wfAction.getType());
if (executor == null) {
throw new CommandException(ErrorCode.E0802, wfAction.getType());
}
}
@Override
protected Void execute() throws CommandException {
LOG.debug("STARTED ActionStartXCommand for wf actionId=" + actionId);
Configuration conf = wfJob.getWorkflowInstance().getConf();
int maxRetries = conf.getInt(OozieClient.ACTION_MAX_RETRIES, executor.getMaxRetries());
long retryInterval = conf.getLong(OozieClient.ACTION_RETRY_INTERVAL, executor.getRetryInterval());
executor.setMaxRetries(maxRetries);
executor.setRetryInterval(retryInterval);
ActionExecutorContext context = null;
try {
boolean isRetry = false;
if (wfAction.getStatus() == WorkflowActionBean.Status.START_RETRY
|| wfAction.getStatus() == WorkflowActionBean.Status.START_MANUAL) {
isRetry = true;
}
context = new ActionXCommand.ActionExecutorContext(wfJob, wfAction, isRetry);
try {
String tmpActionConf = XmlUtils.removeComments(wfAction.getConf());
String actionConf = context.getELEvaluator().evaluate(tmpActionConf, String.class);
wfAction.setConf(actionConf);
LOG.debug("Start, name [{0}] type [{1}] configuration{E}{E}{2}{E}", wfAction.getName(), wfAction
.getType(), actionConf);
}
catch (ELEvaluationException ex) {
throw new ActionExecutorException(ActionExecutorException.ErrorType.TRANSIENT, EL_EVAL_ERROR, ex
.getMessage(), ex);
}
catch (ELException ex) {
context.setErrorInfo(EL_ERROR, ex.getMessage());
LOG.warn("ELException in ActionStartXCommand ", ex.getMessage(), ex);
handleError(context, wfJob, wfAction);
return null;
}
catch (org.jdom.JDOMException je) {
context.setErrorInfo("ParsingError", je.getMessage());
LOG.warn("JDOMException in ActionStartXCommand ", je.getMessage(), je);
handleError(context, wfJob, wfAction);
return null;
}
catch (Exception ex) {
context.setErrorInfo(EL_ERROR, ex.getMessage());
LOG.warn("Exception in ActionStartXCommand ", ex.getMessage(), ex);
handleError(context, wfJob, wfAction);
return null;
}
wfAction.setErrorInfo(null, null);
incrActionCounter(wfAction.getType(), 1);
Instrumentation.Cron cron = new Instrumentation.Cron();
cron.start();
executor.start(context, wfAction);
cron.stop();
FaultInjection.activate("org.apache.oozie.command.SkipCommitFaultInjection");
addActionCron(wfAction.getType(), cron);
wfAction.setRetries(0);
if (wfAction.isExecutionComplete()) {
if (!context.isExecuted()) {
LOG.warn(XLog.OPS, "Action Completed, ActionExecutor [{0}] must call setExecutionData()", executor
.getType());
wfAction.setErrorInfo(EXEC_DATA_MISSING,
"Execution Complete, but Execution Data Missing from Action");
failJob(context);
jpaService.execute(new WorkflowActionUpdateJPAExecutor(wfAction));
jpaService.execute(new WorkflowJobUpdateJPAExecutor(wfJob));
return null;
}
wfAction.setPending();
queue(new ActionEndXCommand(wfAction.getId(), wfAction.getType()));
}
else {
if (!context.isStarted()) {
LOG.warn(XLog.OPS, "Action Started, ActionExecutor [{0}] must call setStartData()", executor
.getType());
wfAction.setErrorInfo(START_DATA_MISSING, "Execution Started, but Start Data Missing from Action");
failJob(context);
jpaService.execute(new WorkflowActionUpdateJPAExecutor(wfAction));
jpaService.execute(new WorkflowJobUpdateJPAExecutor(wfJob));
return null;
}
queue(new NotificationXCommand(wfJob, wfAction));
}
LOG.warn(XLog.STD, "[***" + wfAction.getId() + "***]" + "Action status=" + wfAction.getStatusStr());
jpaService.execute(new WorkflowActionUpdateJPAExecutor(wfAction));
jpaService.execute(new WorkflowJobUpdateJPAExecutor(wfJob));
// Add SLA status event (STARTED) for WF_ACTION
SLADbXOperations.writeStausEvent(wfAction.getSlaXml(), wfAction.getId(), Status.STARTED,
SlaAppType.WORKFLOW_ACTION);
LOG.warn(XLog.STD, "[***" + wfAction.getId() + "***]" + "Action updated in DB!");
}
catch (ActionExecutorException ex) {
LOG.warn("Error starting action [{0}]. ErrorType [{1}], ErrorCode [{2}], Message [{3}]",
wfAction.getName(), ex.getErrorType(), ex.getErrorCode(), ex.getMessage(), ex);
wfAction.setErrorInfo(ex.getErrorCode(), ex.getMessage());
switch (ex.getErrorType()) {
case TRANSIENT:
if (!handleTransient(context, executor, WorkflowAction.Status.START_RETRY)) {
handleNonTransient(context, executor, WorkflowAction.Status.START_MANUAL);
wfAction.setPendingAge(new Date());
wfAction.setRetries(0);
wfAction.setStartTime(null);
}
break;
case NON_TRANSIENT:
handleNonTransient(context, executor, WorkflowAction.Status.START_MANUAL);
break;
case ERROR:
handleError(context, executor, WorkflowAction.Status.ERROR.toString(), true,
WorkflowAction.Status.DONE);
break;
case FAILED:
try {
failJob(context);
// update coordinator action
new CoordActionUpdateXCommand(wfJob, 3).call();
new WfEndXCommand(wfJob).call(); //To delete the WF temp dir
SLADbXOperations.writeStausEvent(wfAction.getSlaXml(), wfAction.getId(), Status.FAILED,
SlaAppType.WORKFLOW_ACTION);
SLADbXOperations.writeStausEvent(wfJob.getSlaXml(), wfJob.getId(), Status.FAILED,
SlaAppType.WORKFLOW_JOB);
}
catch (XException x) {
LOG.warn("ActionStartXCommand - case:FAILED ", x.getMessage());
}
break;
}
try {
jpaService.execute(new WorkflowActionUpdateJPAExecutor(wfAction));
jpaService.execute(new WorkflowJobUpdateJPAExecutor(wfJob));
}
catch (JPAExecutorException je) {
throw new CommandException(je);
}
}
catch (JPAExecutorException je) {
throw new CommandException(je);
}
LOG.debug("ENDED ActionStartXCommand for wf actionId=" + actionId + ", jobId=" + jobId);
return null;
}
private void handleError(ActionExecutorContext context, WorkflowJobBean workflow, WorkflowActionBean action)
throws CommandException {
failJob(context);
try {
jpaService.execute(new WorkflowActionUpdateJPAExecutor(action));
jpaService.execute(new WorkflowJobUpdateJPAExecutor(workflow));
}
catch (JPAExecutorException je) {
throw new CommandException(je);
}
SLADbXOperations.writeStausEvent(action.getSlaXml(), action.getId(), Status.FAILED, SlaAppType.WORKFLOW_ACTION);
SLADbXOperations.writeStausEvent(workflow.getSlaXml(), workflow.getId(), Status.FAILED, SlaAppType.WORKFLOW_JOB);
// update coordinator action
new CoordActionUpdateXCommand(workflow, 3).call();
new WfEndXCommand(wfJob).call(); //To delete the WF temp dir
return;
}
}