| /** |
| * 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.oozie.command.coord; |
| |
| import org.apache.hadoop.conf.Configuration; |
| |
| import org.apache.oozie.client.CoordinatorAction; |
| import org.apache.oozie.client.OozieClient; |
| import org.apache.oozie.CoordinatorActionBean; |
| import org.apache.oozie.DagEngineException; |
| import org.apache.oozie.DagEngine; |
| import org.apache.oozie.ErrorCode; |
| import org.apache.oozie.SLAEventBean; |
| import org.apache.oozie.WorkflowJobBean; |
| import org.apache.oozie.command.CommandException; |
| import org.apache.oozie.command.PreconditionException; |
| import org.apache.oozie.service.DagEngineService; |
| import org.apache.oozie.service.JPAService; |
| import org.apache.oozie.service.Services; |
| import org.apache.oozie.util.JobUtils; |
| import org.apache.oozie.util.LogUtils; |
| import org.apache.oozie.util.ParamChecker; |
| import org.apache.oozie.util.XLog; |
| import org.apache.oozie.util.XmlUtils; |
| import org.apache.oozie.util.XConfiguration; |
| import org.apache.oozie.util.db.SLADbOperations; |
| import org.apache.oozie.client.SLAEvent.SlaAppType; |
| import org.apache.oozie.client.SLAEvent.Status; |
| import org.apache.oozie.client.rest.JsonBean; |
| import org.apache.oozie.executor.jpa.BulkUpdateInsertForCoordActionStartJPAExecutor; |
| import org.apache.oozie.executor.jpa.JPAExecutorException; |
| import org.apache.oozie.executor.jpa.WorkflowJobGetJPAExecutor; |
| import org.jdom.Element; |
| import org.jdom.JDOMException; |
| |
| import java.io.IOException; |
| import java.io.StringReader; |
| import java.util.ArrayList; |
| import java.util.Date; |
| import java.util.List; |
| |
| public class CoordActionStartXCommand extends CoordinatorXCommand<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 final XLog log = getLog(); |
| private String actionId = null; |
| private String user = null; |
| private String authToken = null; |
| private CoordinatorActionBean coordAction = null; |
| private JPAService jpaService = null; |
| private String jobId = null; |
| private List<JsonBean> updateList = new ArrayList<JsonBean>(); |
| private List<JsonBean> insertList = new ArrayList<JsonBean>(); |
| |
| public CoordActionStartXCommand(String id, String user, String token, String jobId) { |
| //super("coord_action_start", "coord_action_start", 1, XLog.OPS); |
| super("coord_action_start", "coord_action_start", 1); |
| this.actionId = ParamChecker.notEmpty(id, "id"); |
| this.user = ParamChecker.notEmpty(user, "user"); |
| this.authToken = ParamChecker.notEmpty(token, "token"); |
| this.jobId = jobId; |
| } |
| |
| /** |
| * Create config to pass to WF Engine 1. Get createdConf from coord_actions table 2. Get actionXml from |
| * coord_actions table. Extract all 'property' tags and merge createdConf (overwrite duplicate keys). 3. Extract |
| * 'app-path' from actionXML. Create a new property called 'oozie.wf.application.path' and merge with createdConf |
| * (overwrite duplicate keys) 4. Read contents of config-default.xml in workflow directory. 5. Merge createdConf |
| * with config-default.xml (overwrite duplicate keys). 6. Results is runConf which is saved in coord_actions table. |
| * Merge Action createdConf with actionXml to create new runConf with replaced variables |
| * |
| * @param action CoordinatorActionBean |
| * @return Configuration |
| * @throws CommandException |
| */ |
| private Configuration mergeConfig(CoordinatorActionBean action) throws CommandException { |
| String createdConf = action.getCreatedConf(); |
| String actionXml = action.getActionXml(); |
| Element workflowProperties = null; |
| try { |
| workflowProperties = XmlUtils.parseXml(actionXml); |
| } |
| catch (JDOMException e1) { |
| log.warn("Configuration parse error in:" + actionXml); |
| throw new CommandException(ErrorCode.E1005, e1.getMessage(), e1); |
| } |
| // generate the 'runConf' for this action |
| // Step 1: runConf = createdConf |
| Configuration runConf = null; |
| try { |
| runConf = new XConfiguration(new StringReader(createdConf)); |
| } |
| catch (IOException e1) { |
| log.warn("Configuration parse error in:" + createdConf); |
| throw new CommandException(ErrorCode.E1005, e1.getMessage(), e1); |
| } |
| // Step 2: Merge local properties into runConf |
| // extract 'property' tags under 'configuration' block in the |
| // coordinator.xml (saved in actionxml column) |
| // convert Element to XConfiguration |
| Element configElement = (Element) workflowProperties.getChild("action", workflowProperties.getNamespace()) |
| .getChild("workflow", workflowProperties.getNamespace()).getChild("configuration", |
| workflowProperties.getNamespace()); |
| if (configElement != null) { |
| String strConfig = XmlUtils.prettyPrint(configElement).toString(); |
| Configuration localConf; |
| try { |
| localConf = new XConfiguration(new StringReader(strConfig)); |
| } |
| catch (IOException e1) { |
| log.warn("Configuration parse error in:" + strConfig); |
| throw new CommandException(ErrorCode.E1005, e1.getMessage(), e1); |
| } |
| |
| // copy configuration properties in coordinator.xml to the runConf |
| XConfiguration.copy(localConf, runConf); |
| } |
| |
| // Step 3: Extract value of 'app-path' in actionxml, and save it as a |
| // new property called 'oozie.wf.application.path' |
| // WF Engine requires the path to the workflow.xml to be saved under |
| // this property name |
| String appPath = workflowProperties.getChild("action", workflowProperties.getNamespace()).getChild("workflow", |
| workflowProperties.getNamespace()).getChild("app-path", workflowProperties.getNamespace()).getValue(); |
| runConf.set("oozie.wf.application.path", appPath); |
| return runConf; |
| } |
| |
| @Override |
| protected Void execute() throws CommandException { |
| boolean makeFail = true; |
| String errCode = ""; |
| String errMsg = ""; |
| ParamChecker.notEmpty(user, "user"); |
| ParamChecker.notEmpty(authToken, "authToken"); |
| |
| log.debug("actionid=" + actionId + ", status=" + coordAction.getStatus()); |
| if (coordAction.getStatus() == CoordinatorAction.Status.SUBMITTED) { |
| // log.debug("getting.. job id: " + coordAction.getJobId()); |
| // create merged runConf to pass to WF Engine |
| Configuration runConf = mergeConfig(coordAction); |
| coordAction.setRunConf(XmlUtils.prettyPrint(runConf).toString()); |
| // log.debug("%%% merged runconf=" + |
| // XmlUtils.prettyPrint(runConf).toString()); |
| DagEngine dagEngine = Services.get().get(DagEngineService.class).getDagEngine(user, authToken); |
| try { |
| boolean startJob = true; |
| Configuration conf = new XConfiguration(new StringReader(coordAction.getRunConf())); |
| SLAEventBean slaEvent = SLADbOperations.createStatusEvent(coordAction.getSlaXml(), coordAction.getId(), Status.STARTED, |
| SlaAppType.COORDINATOR_ACTION, log); |
| if(slaEvent != null) { |
| insertList.add(slaEvent); |
| } |
| |
| // Normalize workflow appPath here; |
| JobUtils.normalizeAppPath(conf.get(OozieClient.USER_NAME), conf.get(OozieClient.GROUP_NAME), conf); |
| String wfId = dagEngine.submitJob(conf, startJob); |
| coordAction.setStatus(CoordinatorAction.Status.RUNNING); |
| coordAction.setExternalId(wfId); |
| coordAction.incrementAndGetPending(); |
| |
| //store.updateCoordinatorAction(coordAction); |
| JPAService jpaService = Services.get().get(JPAService.class); |
| if (jpaService != null) { |
| log.debug("Updating WF record for WFID :" + wfId + " with parent id: " + actionId); |
| WorkflowJobBean wfJob = jpaService.execute(new WorkflowJobGetJPAExecutor(wfId)); |
| wfJob.setParentId(actionId); |
| wfJob.setLastModifiedTime(new Date()); |
| updateList.add(wfJob); |
| updateList.add(coordAction); |
| try { |
| jpaService.execute(new BulkUpdateInsertForCoordActionStartJPAExecutor(updateList, insertList)); |
| } |
| catch (JPAExecutorException je) { |
| throw new CommandException(je); |
| } |
| } |
| else { |
| log.error(ErrorCode.E0610); |
| } |
| |
| makeFail = false; |
| } |
| catch (DagEngineException dee) { |
| errMsg = dee.getMessage(); |
| errCode = "E1005"; |
| log.warn("can not create DagEngine for submitting jobs", dee); |
| } |
| catch (CommandException ce) { |
| errMsg = ce.getMessage(); |
| errCode = ce.getErrorCode().toString(); |
| log.warn("command exception occured ", ce); |
| } |
| catch (java.io.IOException ioe) { |
| errMsg = ioe.getMessage(); |
| errCode = "E1005"; |
| log.warn("Configuration parse error. read from DB :" + coordAction.getRunConf(), ioe); |
| } |
| catch (Exception ex) { |
| errMsg = ex.getMessage(); |
| errCode = "E1005"; |
| log.warn("can not create DagEngine for submitting jobs", ex); |
| } |
| finally { |
| if (makeFail == true) { // No DB exception occurs |
| log.warn("Failing the action " + coordAction.getId() + ". Because " + errCode + " : " + errMsg); |
| coordAction.setStatus(CoordinatorAction.Status.FAILED); |
| if (errMsg.length() > 254) { // Because table column size is 255 |
| errMsg = errMsg.substring(0, 255); |
| } |
| coordAction.setErrorMessage(errMsg); |
| coordAction.setErrorCode(errCode); |
| |
| updateList = new ArrayList<JsonBean>(); |
| updateList.add(coordAction); |
| insertList = new ArrayList<JsonBean>(); |
| |
| SLAEventBean slaEvent = SLADbOperations.createStatusEvent(coordAction.getSlaXml(), coordAction.getId(), Status.FAILED, |
| SlaAppType.COORDINATOR_ACTION, log); |
| if(slaEvent != null) { |
| insertList.add(slaEvent); //Update SLA events |
| } |
| try { |
| // call JPAExecutor to do the bulk writes |
| jpaService.execute(new BulkUpdateInsertForCoordActionStartJPAExecutor(updateList, insertList)); |
| } |
| catch (JPAExecutorException je) { |
| throw new CommandException(je); |
| } |
| queue(new CoordActionReadyXCommand(coordAction.getJobId())); |
| } |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public String getEntityKey() { |
| return this.jobId; |
| } |
| |
| @Override |
| protected boolean isLockRequired() { |
| return true; |
| } |
| |
| @Override |
| protected void loadState() throws CommandException { |
| |
| } |
| |
| @Override |
| protected void eagerLoadState() throws CommandException { |
| jpaService = Services.get().get(JPAService.class); |
| if (jpaService == null) { |
| throw new CommandException(ErrorCode.E0610); |
| } |
| |
| try { |
| coordAction = jpaService.execute(new org.apache.oozie.executor.jpa.CoordActionGetForStartJPAExecutor(actionId)); |
| } |
| catch (JPAExecutorException je) { |
| throw new CommandException(je); |
| } |
| LogUtils.setLogInfo(coordAction, logInfo); |
| } |
| |
| @Override |
| protected void verifyPrecondition() throws PreconditionException { |
| if (coordAction.getStatus() != CoordinatorAction.Status.SUBMITTED) { |
| throw new PreconditionException(ErrorCode.E1100); |
| } |
| } |
| } |
