| /* |
| * 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.asterix.bad; |
| |
| import java.io.StringReader; |
| import java.time.Instant; |
| import java.util.Date; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.ScheduledExecutorService; |
| import java.util.concurrent.TimeUnit; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| import org.apache.asterix.active.ActivityState; |
| import org.apache.asterix.active.EntityId; |
| import org.apache.asterix.api.http.server.ResultUtil; |
| import org.apache.asterix.app.active.ActiveNotificationHandler; |
| import org.apache.asterix.app.result.ResultReader; |
| import org.apache.asterix.app.translator.QueryTranslator; |
| import org.apache.asterix.bad.lang.BADParserFactory; |
| import org.apache.asterix.bad.lang.BADStatementExecutor; |
| import org.apache.asterix.bad.metadata.DeployedJobSpecEventListener; |
| import org.apache.asterix.common.dataflow.ICcApplicationContext; |
| import org.apache.asterix.common.transactions.ITxnIdFactory; |
| import org.apache.asterix.lang.common.base.Statement; |
| import org.apache.asterix.lang.common.statement.Query; |
| import org.apache.asterix.lang.common.statement.SetStatement; |
| import org.apache.asterix.lang.sqlpp.visitor.SqlppDeleteRewriteVisitor; |
| import org.apache.asterix.metadata.MetadataManager; |
| import org.apache.asterix.metadata.MetadataTransactionContext; |
| import org.apache.asterix.metadata.declared.MetadataProvider; |
| import org.apache.asterix.translator.IRequestParameters; |
| import org.apache.asterix.translator.IStatementExecutor; |
| import org.apache.hyracks.api.client.IHyracksClientConnection; |
| import org.apache.hyracks.api.job.DeployedJobSpecId; |
| import org.apache.hyracks.api.job.JobId; |
| import org.apache.hyracks.api.job.JobSpecification; |
| import org.apache.hyracks.api.result.IResultSet; |
| import org.apache.hyracks.api.result.ResultSetId; |
| |
| /** |
| * Provides functionality for channel jobs |
| */ |
| public class BADJobService { |
| |
| private static final Logger LOGGER = Logger.getLogger(BADJobService.class.getName()); |
| |
| //pool size one (only running one thread at a time) |
| private static final int POOL_SIZE = 1; |
| |
| private static final long millisecondTimeout = BADConstants.EXECUTOR_TIMEOUT * 1000; |
| |
| public static void setupExecutorJob(EntityId entityId, JobSpecification channeljobSpec, |
| IHyracksClientConnection hcc, DeployedJobSpecEventListener listener, ITxnIdFactory txnIdFactory, |
| String duration) throws Exception { |
| if (channeljobSpec != null) { |
| channeljobSpec.setProperty(ActiveNotificationHandler.ACTIVE_ENTITY_PROPERTY_NAME, entityId); |
| DeployedJobSpecId deployedId = hcc.deployJobSpec(channeljobSpec); |
| ScheduledExecutorService ses = startRepetitiveDeployedJobSpec(deployedId, hcc, findPeriod(duration), |
| new HashMap<>(), entityId, txnIdFactory, listener); |
| listener.setDeployedJobSpecId(deployedId); |
| listener.setExecutorService(ses); |
| } |
| |
| } |
| |
| //Starts running a deployed job specification periodically with an interval of "period" seconds |
| public static ScheduledExecutorService startRepetitiveDeployedJobSpec(DeployedJobSpecId distributedId, |
| IHyracksClientConnection hcc, long period, Map<byte[], byte[]> jobParameters, EntityId entityId, |
| ITxnIdFactory txnIdFactory, DeployedJobSpecEventListener listener) { |
| ScheduledExecutorService scheduledExecutorService = Executors.newScheduledThreadPool(POOL_SIZE); |
| scheduledExecutorService.scheduleAtFixedRate(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| if (!runDeployedJobSpecCheckPeriod(distributedId, hcc, jobParameters, period, entityId, |
| txnIdFactory, listener)) { |
| scheduledExecutorService.shutdown(); |
| } |
| } catch (Exception e) { |
| LOGGER.log(Level.SEVERE, "Job Failed to run for " + entityId.getExtensionName() + " " |
| + entityId.getDataverse() + "." + entityId.getEntityName() + ".", e); |
| } |
| } |
| }, period, period, TimeUnit.MILLISECONDS); |
| return scheduledExecutorService; |
| } |
| |
| public static boolean runDeployedJobSpecCheckPeriod(DeployedJobSpecId distributedId, IHyracksClientConnection hcc, |
| Map<byte[], byte[]> jobParameters, long period, EntityId entityId, ITxnIdFactory txnIdFactory, |
| DeployedJobSpecEventListener listener) throws Exception { |
| long executionMilliseconds = runDeployedJobSpec(distributedId, hcc, null, jobParameters, entityId, txnIdFactory, |
| null, listener, null); |
| if (executionMilliseconds > period) { |
| LOGGER.log(Level.SEVERE, |
| "Periodic job for " + entityId.getExtensionName() + " " + entityId.getDataverse() + "." |
| + entityId.getEntityName() + " was unable to meet the required period of " + period |
| + " milliseconds. Actually took " + executionMilliseconds + " execution will shutdown" |
| + new Date()); |
| return false; |
| } |
| return true; |
| } |
| |
| public static long runDeployedJobSpec(DeployedJobSpecId distributedId, IHyracksClientConnection hcc, |
| IResultSet resultSet, Map<byte[], byte[]> jobParameters, EntityId entityId, ITxnIdFactory txnIdFactory, |
| ICcApplicationContext appCtx, DeployedJobSpecEventListener listener, QueryTranslator statementExecutor) |
| throws Exception { |
| listener.waitWhileAtState(ActivityState.SUSPENDED); |
| |
| //Add the Asterix Transaction Id to the map |
| jobParameters.put(BADConstants.TRANSACTION_ID_PARAMETER_NAME, |
| String.valueOf(txnIdFactory.create().getId()).getBytes()); |
| |
| long startTime = Instant.now().toEpochMilli(); |
| JobId jobId = hcc.startJob(distributedId, jobParameters); |
| |
| hcc.waitForCompletion(jobId); |
| long executionMilliseconds = Instant.now().toEpochMilli() - startTime; |
| |
| if (listener.getType() == DeployedJobSpecEventListener.PrecompiledType.QUERY) { |
| ResultReader resultReader = new ResultReader(resultSet, jobId, new ResultSetId(0)); |
| |
| ResultUtil.printResults(appCtx, resultReader, statementExecutor.getSessionOutput(), |
| new IStatementExecutor.Stats(), null); |
| } |
| |
| LOGGER.log(Level.SEVERE, |
| "Deployed Job execution completed for " + entityId.getExtensionName() + " " + entityId.getDataverse() |
| + "." + entityId.getEntityName() + ". Took " + executionMilliseconds + " milliseconds "); |
| |
| return executionMilliseconds; |
| |
| } |
| |
| public static long findPeriod(String duration) { |
| //TODO: Allow Repetitive Channels to use YMD durations |
| String hoursMinutesSeconds = ""; |
| if (duration.indexOf('T') != -1) { |
| hoursMinutesSeconds = duration.substring(duration.indexOf('T') + 1); |
| } |
| double seconds = 0; |
| if (hoursMinutesSeconds != "") { |
| int pos = 0; |
| if (hoursMinutesSeconds.indexOf('H') != -1) { |
| Double hours = Double.parseDouble(hoursMinutesSeconds.substring(pos, hoursMinutesSeconds.indexOf('H'))); |
| seconds += (hours * 60 * 60); |
| pos = hoursMinutesSeconds.indexOf('H') + 1; |
| } |
| if (hoursMinutesSeconds.indexOf('M') != -1) { |
| Double minutes = |
| Double.parseDouble(hoursMinutesSeconds.substring(pos, hoursMinutesSeconds.indexOf('M'))); |
| seconds += (minutes * 60); |
| pos = hoursMinutesSeconds.indexOf('M') + 1; |
| } |
| if (hoursMinutesSeconds.indexOf('S') != -1) { |
| Double s = Double.parseDouble(hoursMinutesSeconds.substring(pos, hoursMinutesSeconds.indexOf('S'))); |
| seconds += (s); |
| } |
| } |
| return (long) (seconds * 1000); |
| } |
| |
| public static JobSpecification compilePushChannel(IStatementExecutor statementExecutor, |
| MetadataProvider metadataProvider, IHyracksClientConnection hcc, Query q) throws Exception { |
| MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction(); |
| boolean bActiveTxn = true; |
| metadataProvider.setMetadataTxnContext(mdTxnCtx); |
| JobSpecification jobSpec = null; |
| try { |
| jobSpec = ((QueryTranslator) statementExecutor).rewriteCompileQuery(hcc, metadataProvider, q, null, null, |
| null); |
| MetadataManager.INSTANCE.commitTransaction(mdTxnCtx); |
| bActiveTxn = false; |
| } catch (Exception e) { |
| LOGGER.log(Level.INFO, e.getMessage(), e); |
| if (bActiveTxn) { |
| ((QueryTranslator) statementExecutor).abort(e, e, mdTxnCtx); |
| } |
| throw e; |
| } finally { |
| metadataProvider.getLocks().unlock(); |
| } |
| return jobSpec; |
| } |
| |
| public static void redeployJobSpec(EntityId entityId, String queryBodyString, MetadataProvider metadataProvider, |
| BADStatementExecutor badStatementExecutor, IHyracksClientConnection hcc, |
| IRequestParameters requestParameters, boolean useNewId) throws Exception { |
| |
| ICcApplicationContext appCtx = metadataProvider.getApplicationContext(); |
| ActiveNotificationHandler activeEventHandler = |
| (ActiveNotificationHandler) appCtx.getActiveNotificationHandler(); |
| DeployedJobSpecEventListener listener = (DeployedJobSpecEventListener) activeEventHandler.getListener(entityId); |
| if (listener == null) { |
| LOGGER.severe("Tried to redeploy the job for " + entityId + " but no listener exists."); |
| return; |
| } |
| |
| BADParserFactory factory = new BADParserFactory(); |
| List<Statement> fStatements = factory.createParser(new StringReader(queryBodyString)).parse(); |
| JobSpecification jobSpec = null; |
| if (listener.getType().equals(DeployedJobSpecEventListener.PrecompiledType.PUSH_CHANNEL) |
| || listener.getType().equals(DeployedJobSpecEventListener.PrecompiledType.CHANNEL)) { |
| //Channels |
| SetStatement ss = (SetStatement) fStatements.get(0); |
| metadataProvider.getConfig().put(ss.getPropName(), ss.getPropValue()); |
| if (listener.getType().equals(DeployedJobSpecEventListener.PrecompiledType.PUSH_CHANNEL)) { |
| jobSpec = compilePushChannel(badStatementExecutor, metadataProvider, hcc, (Query) fStatements.get(1)); |
| } else { |
| jobSpec = badStatementExecutor.handleInsertUpsertStatement(metadataProvider, fStatements.get(1), hcc, |
| null, null, null, null, true, null, null, null); |
| } |
| } else { |
| //Procedures |
| metadataProvider.setResultSetId(new ResultSetId(0)); |
| IStatementExecutor.ResultDelivery resultDelivery = requestParameters.getResultProperties().getDelivery(); |
| IResultSet hdc = requestParameters.getResultSet(); |
| IStatementExecutor.Stats stats = requestParameters.getStats(); |
| boolean resultsAsync = resultDelivery == IStatementExecutor.ResultDelivery.ASYNC |
| || resultDelivery == IStatementExecutor.ResultDelivery.DEFERRED; |
| metadataProvider.setResultAsyncMode(resultsAsync); |
| metadataProvider.setMaxResultReads(1); |
| |
| jobSpec = compileProcedureJob(badStatementExecutor, metadataProvider, hcc, hdc, stats, fStatements.get(1)); |
| |
| } |
| if (useNewId) { |
| DeployedJobSpecId id = hcc.deployJobSpec(jobSpec); |
| listener.setDeployedJobSpecId(id); |
| } else { |
| hcc.redeployJobSpec(listener.getDeployedJobSpecId(), jobSpec); |
| } |
| |
| listener.resume(); |
| |
| } |
| |
| public static JobSpecification compileQueryJob(IStatementExecutor statementExecutor, |
| MetadataProvider metadataProvider, IHyracksClientConnection hcc, Query q) throws Exception { |
| MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction(); |
| metadataProvider.setMetadataTxnContext(mdTxnCtx); |
| JobSpecification jobSpec; |
| try { |
| jobSpec = statementExecutor.rewriteCompileQuery(hcc, metadataProvider, q, null, null, null); |
| MetadataManager.INSTANCE.commitTransaction(mdTxnCtx); |
| } catch (Exception e) { |
| ((QueryTranslator) statementExecutor).abort(e, e, mdTxnCtx); |
| throw e; |
| } |
| return jobSpec; |
| } |
| |
| private static JobSpecification compileProcedureJob(IStatementExecutor statementExecutor, |
| MetadataProvider metadataProvider, IHyracksClientConnection hcc, IResultSet resultSet, |
| IStatementExecutor.Stats stats, Statement procedureStatement) throws Exception { |
| if (procedureStatement.getKind() == Statement.Kind.INSERT) { |
| return ((QueryTranslator) statementExecutor).handleInsertUpsertStatement(metadataProvider, |
| procedureStatement, hcc, resultSet, IStatementExecutor.ResultDelivery.ASYNC, null, stats, true, |
| null, null, null); |
| } else if (procedureStatement.getKind() == Statement.Kind.QUERY) { |
| return compileQueryJob(statementExecutor, metadataProvider, hcc, (Query) procedureStatement); |
| } else { |
| SqlppDeleteRewriteVisitor visitor = new SqlppDeleteRewriteVisitor(); |
| procedureStatement.accept(visitor, null); |
| return ((QueryTranslator) statementExecutor).handleDeleteStatement(metadataProvider, procedureStatement, |
| hcc, true, null, null); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return "BADJobService"; |
| } |
| |
| } |
