/**
* 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 org.apache.oozie.WorkflowActionBean;
import org.apache.oozie.WorkflowJobBean;
import org.apache.oozie.client.SLAEvent.SlaAppType;
import org.apache.oozie.client.SLAEvent.Status;
import org.apache.oozie.command.CommandException;
import org.apache.oozie.action.ActionExecutor;
import org.apache.oozie.action.ActionExecutorException;
import org.apache.oozie.service.ActionService;
import org.apache.oozie.service.UUIDService;
import org.apache.oozie.store.StoreException;
import org.apache.oozie.store.WorkflowStore;
import org.apache.oozie.service.Services;
import org.apache.oozie.util.XLog;
import org.apache.oozie.util.Instrumentation;
import org.apache.oozie.util.db.SLADbOperations;
public class ActionKillCommand extends ActionCommand<Void> {
private String id;
private String jobId;
public ActionKillCommand(String id, String type) {
super("action.kill", type, 0);
this.id = id;
}
protected Void call(WorkflowStore store) throws StoreException, CommandException {
// String jobId = Services.get().get(UUIDService.class).getId(id);
WorkflowJobBean workflow = store.getWorkflow(jobId, false);
setLogInfo(workflow);
WorkflowActionBean action = store.getAction(id, false);
setLogInfo(action);
if (action.isPending() && (action.getStatus() == WorkflowActionBean.Status.KILLED)) {
ActionExecutor executor = Services.get().get(ActionService.class).getExecutor(action.getType());
if (executor != null) {
try {
boolean isRetry = false;
ActionExecutorContext context = new ActionCommand.ActionExecutorContext(workflow, action, isRetry);
incrActionCounter(action.getType(), 1);
Instrumentation.Cron cron = new Instrumentation.Cron();
cron.start();
executor.kill(context, action);
cron.stop();
addActionCron(action.getType(), cron);
action.resetPending();
action.setStatus(WorkflowActionBean.Status.KILLED);
store.updateAction(action);
store.updateWorkflow(workflow);
// Add SLA status event (KILLED) for WF_ACTION
SLADbOperations.writeStausEvent(action.getSlaXml(), action.getId(), store, Status.KILLED,
SlaAppType.WORKFLOW_ACTION);
queueCallable(new NotificationCommand(workflow, action));
}
catch (ActionExecutorException ex) {
action.resetPending();
action.setStatus(WorkflowActionBean.Status.FAILED);
action.setErrorInfo(ex.getErrorCode().toString(),
"KILL COMMAND FAILED - exception while executing job kill");
workflow.setStatus(WorkflowJobBean.Status.KILLED);
store.updateAction(action);
store.updateWorkflow(workflow);
// What will happen to WF and COORD_ACTION, NOTIFICATION?
SLADbOperations.writeStausEvent(action.getSlaXml(), action.getId(), store, Status.FAILED,
SlaAppType.WORKFLOW_ACTION);
XLog.getLog(getClass()).warn("Exception while executing kill(). Error Code [{0}], Message[{1}]",
ex.getErrorCode(), ex.getMessage(), ex);
}
}
}
return null;
}
@Override
protected Void execute(WorkflowStore store) throws CommandException, StoreException {
XLog.getLog(getClass()).debug("STARTED ActionKillCommand for action " + id);
try {
jobId = Services.get().get(UUIDService.class).getId(id);
if (lock(jobId)) {
call(store);
}
else {
queueCallable(new ActionKillCommand(id, type), LOCK_FAILURE_REQUEUE_INTERVAL);
XLog.getLog(getClass()).warn("ActionKill lock was not acquired - failed {0}", id);
}
}
catch (InterruptedException e) {
queueCallable(new ActionKillCommand(id, type), LOCK_FAILURE_REQUEUE_INTERVAL);
XLog.getLog(getClass()).warn("ActionKill lock was not acquired - interrupted exception failed {0}", id);
}
finally {
XLog.getLog(getClass()).debug("ENDED ActionKillCommand for action " + id);
}
return null;
}
}