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SQOOP-1017: Sqoop2: Split FrameworkManager into two classes

Browse Source 
(Venkat Ranganathan via Jarek Jarcec Cecho)
This commit is contained in:
Jarek Jarcec Cecho 2013-06-20 15:02:56 -07:00
parent 05a73ef168
commit 9920db114d
4 changed files with 580 additions and 503 deletions
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3
core/src/main/java/org/apache/sqoop/core/SqoopServer.java
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@ -20,6 +20,7 @@
import org.apache.log4j.Logger;
import org.apache.sqoop.connector.ConnectorManager;
import org.apache.sqoop.framework.FrameworkManager;
import org.apache.sqoop.framework.JobManager;
import org.apache.sqoop.repository.RepositoryManager;
/**
@ -31,6 +32,7 @@ public class SqoopServer {
public static void destroy() {
LOG.info("Shutting down Sqoop server");
JobManager.getInstance().destroy();
FrameworkManager.getInstance().destroy();
ConnectorManager.getInstance().destroy();
RepositoryManager.getInstance().destroy();
@ -45,6 +47,7 @@ public static void initialize() {
RepositoryManager.getInstance().initialize();
ConnectorManager.getInstance().initialize();
FrameworkManager.getInstance().initialize();
JobManager.getInstance().initialize();
LOG.info("Sqoop server has successfully boot up");
} catch (Exception ex) {
LOG.error("Server startup failure", ex);

510
core/src/main/java/org/apache/sqoop/framework/FrameworkManager.java
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@ -18,36 +18,14 @@
package org.apache.sqoop.framework;
import org.apache.log4j.Logger;
import org.apache.sqoop.common.MapContext;
import org.apache.sqoop.common.SqoopException;
import org.apache.sqoop.connector.ConnectorManager;
import org.apache.sqoop.connector.spi.MetadataUpgrader;
import org.apache.sqoop.connector.spi.SqoopConnector;
import org.apache.sqoop.core.SqoopConfiguration;
import org.apache.sqoop.framework.configuration.ConnectionConfiguration;
import org.apache.sqoop.framework.configuration.ExportJobConfiguration;
import org.apache.sqoop.framework.configuration.ImportJobConfiguration;
import org.apache.sqoop.job.etl.CallbackBase;
import org.apache.sqoop.job.etl.Destroyer;
import org.apache.sqoop.job.etl.DestroyerContext;
import org.apache.sqoop.job.etl.Initializer;
import org.apache.sqoop.job.etl.InitializerContext;
import org.apache.sqoop.model.FormUtils;
import org.apache.sqoop.model.MConnection;
import org.apache.sqoop.model.MConnectionForms;
import org.apache.sqoop.model.MJob;
import org.apache.sqoop.model.MFramework;
import org.apache.sqoop.model.MJobForms;
import org.apache.sqoop.model.MSubmission;
import org.apache.sqoop.repository.Repository;
import org.apache.sqoop.model.*;
import org.apache.sqoop.repository.RepositoryManager;
import org.apache.sqoop.submission.SubmissionStatus;
import org.apache.sqoop.submission.counter.Counters;
import org.apache.sqoop.utils.ClassUtils;
import org.apache.sqoop.validation.Validator;
import org.json.simple.JSONValue;
import java.util.Date;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
@ -109,21 +87,6 @@ public static void setInstance(FrameworkManager newInstance) {
instance = newInstance;
}
/**
* Default interval for purging old submissions from repository.
*/
private static final long DEFAULT_PURGE_THRESHOLD = 24*60*60*1000;
/**
* Default sleep interval for purge thread.
*/
private static final long DEFAULT_PURGE_SLEEP = 24*60*60*1000;
/**
* Default interval for update thread.
*/
private static final long DEFAULT_UPDATE_SLEEP = 60*5*1000;
/**
* Framework metadata structures in MForm format
*/
@ -139,77 +102,20 @@ public static void setInstance(FrameworkManager newInstance) {
*/
private final MetadataUpgrader upgrader;
/**
* Configured submission engine instance
*/
private SubmissionEngine submissionEngine;
/**
* Configured execution engine instance
*/
private ExecutionEngine executionEngine;
/**
* Purge thread that will periodically remove old submissions from repository.
*/
private PurgeThread purgeThread = null;
/**
* Update thread that will periodically check status of running submissions.
*/
private UpdateThread updateThread = null;
/**
* Synchronization variable between threads.
*/
private boolean running = true;
/**
* Specifies how old submissions should be removed from repository.
*/
private long purgeThreshold;
/**
* Number of milliseconds for purge thread to sleep.
*/
private long purgeSleep;
/**
* Number of milliseconds for update thread to slepp.
*/
private long updateSleep;
/**
* Mutex for creating new submissions. We're not allowing more then one
* running submission for one job.
*/
private final Object submissionMutex = new Object();
/**
* Base notification URL.
*
* Framework manager will always add job id.
*/
private String notificationBaseUrl;
/**
* Set notification base URL.
*
* @param url Base URL
*/
public void setNotificationBaseUrl(String url) {
LOG.debug("Setting notification base URL to " + url);
notificationBaseUrl = url;
}
/**
* Get base notification url.
*
* @return String representation of the URL
*/
public String getNotificationBaseUrl() {
return notificationBaseUrl;
public Class getJobConfigurationClass(MJob.Type jobType) {
switch (jobType) {
case IMPORT:
return ImportJobConfiguration.class;
case EXPORT:
return ExportJobConfiguration.class;
default:
return null;
}
}
public Class getConnectionConfigurationClass() {
return ConnectionConfiguration.class;
}
public FrameworkManager() {
MConnectionForms connectionForms = new MConnectionForms(
@ -231,93 +137,15 @@ public FrameworkManager() {
public synchronized void initialize() {
LOG.trace("Begin submission engine manager initialization");
MapContext context = SqoopConfiguration.getInstance().getContext();
// Register framework metadata in repository
mFramework = RepositoryManager.getInstance().getRepository().registerFramework(mFramework);
// Let's load configured submission engine
String submissionEngineClassName =
context.getString(FrameworkConstants.SYSCFG_SUBMISSION_ENGINE);
submissionEngine = (SubmissionEngine) ClassUtils.instantiate(submissionEngineClassName);
if(submissionEngine == null) {
throw new SqoopException(FrameworkError.FRAMEWORK_0001,
submissionEngineClassName);
}
submissionEngine.initialize(context, FrameworkConstants.PREFIX_SUBMISSION_ENGINE_CONFIG);
// Execution engine
String executionEngineClassName =
context.getString(FrameworkConstants.SYSCFG_EXECUTION_ENGINE);
executionEngine = (ExecutionEngine) ClassUtils.instantiate(executionEngineClassName);
if(executionEngine == null) {
throw new SqoopException(FrameworkError.FRAMEWORK_0007,
executionEngineClassName);
}
// We need to make sure that user has configured compatible combination of
// submission engine and execution engine
if(! submissionEngine.isExecutionEngineSupported(executionEngine.getClass())) {
throw new SqoopException(FrameworkError.FRAMEWORK_0008);
}
executionEngine.initialize(context, FrameworkConstants.PREFIX_EXECUTION_ENGINE_CONFIG);
// Set up worker threads
purgeThreshold = context.getLong(
FrameworkConstants.SYSCFG_SUBMISSION_PURGE_THRESHOLD,
DEFAULT_PURGE_THRESHOLD
);
purgeSleep = context.getLong(
FrameworkConstants.SYSCFG_SUBMISSION_PURGE_SLEEP,
DEFAULT_PURGE_SLEEP
);
purgeThread = new PurgeThread();
purgeThread.start();
updateSleep = context.getLong(
FrameworkConstants.SYSCFG_SUBMISSION_UPDATE_SLEEP,
DEFAULT_UPDATE_SLEEP
);
updateThread = new UpdateThread();
updateThread.start();
LOG.info("Submission manager initialized: OK");
}
public synchronized void destroy() {
LOG.trace("Begin submission engine manager destroy");
running = false;
try {
purgeThread.interrupt();
purgeThread.join();
} catch (InterruptedException e) {
//TODO(jarcec): Do I want to wait until it actually finish here?
LOG.error("Interrupted joining purgeThread");
}
try {
updateThread.interrupt();
updateThread.join();
} catch (InterruptedException e) {
//TODO(jarcec): Do I want to wait until it actually finish here?
LOG.error("Interrupted joining updateThread");
}
if(submissionEngine != null) {
submissionEngine.destroy();
}
if(executionEngine != null) {
executionEngine.destroy();
}
}
public Validator getValidator() {
@ -328,21 +156,6 @@ public MetadataUpgrader getMetadataUpgrader() {
return upgrader;
}
public Class getConnectionConfigurationClass() {
return ConnectionConfiguration.class;
}
public Class getJobConfigurationClass(MJob.Type jobType) {
switch (jobType) {
case IMPORT:
return ImportJobConfiguration.class;
case EXPORT:
return ExportJobConfiguration.class;
default:
return null;
}
}
public MFramework getFramework() {
return mFramework;
}
@ -352,301 +165,4 @@ public ResourceBundle getBundle(Locale locale) {
FrameworkConstants.RESOURCE_BUNDLE_NAME, locale);
}
public MSubmission submit(long jobId) {
Repository repository = RepositoryManager.getInstance().getRepository();
MJob job = repository.findJob(jobId);
if(job == null) {
throw new SqoopException(FrameworkError.FRAMEWORK_0004,
"Unknown job id " + jobId);
}
MConnection connection = repository.findConnection(job.getConnectionId());
SqoopConnector connector =
ConnectorManager.getInstance().getConnector(job.getConnectorId());
// Transform forms to connector specific classes
Object connectorConnection = ClassUtils.instantiate(
connector.getConnectionConfigurationClass());
FormUtils.fromForms(connection.getConnectorPart().getForms(),
connectorConnection);
Object connectorJob = ClassUtils.instantiate(
connector.getJobConfigurationClass(job.getType()));
FormUtils.fromForms(job.getConnectorPart().getForms(), connectorJob);
// Transform framework specific forms
Object frameworkConnection = ClassUtils.instantiate(
getConnectionConfigurationClass());
FormUtils.fromForms(connection.getFrameworkPart().getForms(),
frameworkConnection);
Object frameworkJob = ClassUtils.instantiate(
getJobConfigurationClass(job.getType()));
FormUtils.fromForms(job.getFrameworkPart().getForms(), frameworkJob);
// Create request object
MSubmission summary = new MSubmission(jobId);
SubmissionRequest request = executionEngine.createSubmissionRequest();
// Save important variables to the submission request
request.setSummary(summary);
request.setConnector(connector);
request.setConfigConnectorConnection(connectorConnection);
request.setConfigConnectorJob(connectorJob);
request.setConfigFrameworkConnection(frameworkConnection);
request.setConfigFrameworkJob(frameworkJob);
request.setJobType(job.getType());
request.setJobName(job.getName());
request.setJobId(job.getPersistenceId());
request.setNotificationUrl(notificationBaseUrl + jobId);
// Let's register all important jars
// sqoop-common
request.addJarForClass(MapContext.class);
// sqoop-core
request.addJarForClass(FrameworkManager.class);
// sqoop-spi
request.addJarForClass(SqoopConnector.class);
// Execution engine jar
request.addJarForClass(executionEngine.getClass());
// Connector in use
request.addJarForClass(connector.getClass());
// Extra libraries that Sqoop code requires
request.addJarForClass(JSONValue.class);
// Get connector callbacks
switch (job.getType()) {
case IMPORT:
request.setConnectorCallbacks(connector.getImporter());
break;
case EXPORT:
request.setConnectorCallbacks(connector.getExporter());
break;
default:
throw new SqoopException(FrameworkError.FRAMEWORK_0005,
"Unsupported job type " + job.getType().name());
}
LOG.debug("Using callbacks: " + request.getConnectorCallbacks());
// Initialize submission from connector perspective
CallbackBase baseCallbacks = request.getConnectorCallbacks();
Class<? extends Initializer> initializerClass = baseCallbacks.getInitializer();
Initializer initializer = (Initializer) ClassUtils.instantiate(initializerClass);
if(initializer == null) {
throw new SqoopException(FrameworkError.FRAMEWORK_0006,
"Can't create initializer instance: " + initializerClass.getName());
}
// Initializer context
InitializerContext initializerContext = new InitializerContext(request.getConnectorContext());
// Initialize submission from connector perspective
initializer.initialize(initializerContext,
request.getConfigConnectorConnection(),
request.getConfigConnectorJob());
// Add job specific jars to
request.addJars(initializer.getJars(initializerContext,
request.getConfigConnectorConnection(),
request.getConfigConnectorJob()));
// Bootstrap job from framework perspective
switch (job.getType()) {
case IMPORT:
prepareImportSubmission(request);
break;
case EXPORT:
prepareExportSubmission(request);
break;
default:
throw new SqoopException(FrameworkError.FRAMEWORK_0005,
"Unsupported job type " + job.getType().name());
}
// Make sure that this job id is not currently running and submit the job
// only if it's not.
synchronized (submissionMutex) {
MSubmission lastSubmission = repository.findSubmissionLastForJob(jobId);
if(lastSubmission != null && lastSubmission.getStatus().isRunning()) {
throw new SqoopException(FrameworkError.FRAMEWORK_0002,
"Job with id " + jobId);
}
// TODO(jarcec): We might need to catch all exceptions here to ensure
// that Destroyer will be executed in all cases.
boolean submitted = submissionEngine.submit(request);
if(!submitted) {
destroySubmission(request);
summary.setStatus(SubmissionStatus.FAILURE_ON_SUBMIT);
}
repository.createSubmission(summary);
}
// Return job status most recent
return summary;
}
private void prepareImportSubmission(SubmissionRequest request) {
ImportJobConfiguration jobConfiguration = (ImportJobConfiguration) request.getConfigFrameworkJob();
// Initialize the map-reduce part (all sort of required classes, ...)
request.setOutputDirectory(jobConfiguration.output.outputDirectory);
// We're directly moving configured number of extractors and loaders to
// underlying request object. In the future we might need to throttle this
// count based on other running jobs to meet our SLAs.
request.setExtractors(jobConfiguration.throttling.extractors);
request.setLoaders(jobConfiguration.throttling.loaders);
// Delegate rest of the job to execution engine
executionEngine.prepareImportSubmission(request);
}
private void prepareExportSubmission(SubmissionRequest request) {
ExportJobConfiguration jobConfiguration = (ExportJobConfiguration) request.getConfigFrameworkJob();
// We're directly moving configured number of extractors and loaders to
// underlying request object. In the future we might need to throttle this
// count based on other running jobs to meet our SLAs.
request.setExtractors(jobConfiguration.throttling.extractors);
request.setLoaders(jobConfiguration.throttling.loaders);
// Delegate rest of the job to execution engine
executionEngine.prepareExportSubmission(request);
}
/**
* Callback that will be called only if we failed to submit the job to the
* remote cluster.
*/
private void destroySubmission(SubmissionRequest request) {
CallbackBase baseCallbacks = request.getConnectorCallbacks();
Class<? extends Destroyer> destroyerClass = baseCallbacks.getDestroyer();
Destroyer destroyer = (Destroyer) ClassUtils.instantiate(destroyerClass);
if(destroyer == null) {
throw new SqoopException(FrameworkError.FRAMEWORK_0006,
"Can't create destroyer instance: " + destroyerClass.getName());
}
DestroyerContext destroyerContext = new DestroyerContext(request.getConnectorContext(), false);
// Initialize submission from connector perspective
destroyer.destroy(destroyerContext, request.getConfigConnectorConnection(), request.getConfigConnectorJob());
}
public MSubmission stop(long jobId) {
Repository repository = RepositoryManager.getInstance().getRepository();
MSubmission submission = repository.findSubmissionLastForJob(jobId);
if(submission == null || !submission.getStatus().isRunning()) {
throw new SqoopException(FrameworkError.FRAMEWORK_0003,
"Job with id " + jobId + " is not running");
}
String externalId = submission.getExternalId();
submissionEngine.stop(externalId);
// Fetch new information to verify that the stop command has actually worked
update(submission);
// Return updated structure
return submission;
}
public MSubmission status(long jobId) {
Repository repository = RepositoryManager.getInstance().getRepository();
MSubmission submission = repository.findSubmissionLastForJob(jobId);
if(submission == null) {
return new MSubmission(jobId, new Date(), SubmissionStatus.NEVER_EXECUTED);
}
// If the submission is in running state, let's update it
if(submission.getStatus().isRunning()) {
update(submission);
}
return submission;
}
private void update(MSubmission submission) {
double progress = -1;
Counters counters = null;
String externalId = submission.getExternalId();
SubmissionStatus newStatus = submissionEngine.status(externalId);
String externalLink = submissionEngine.externalLink(externalId);
if(newStatus.isRunning()) {
progress = submissionEngine.progress(externalId);
} else {
counters = submissionEngine.counters(externalId);
}
submission.setStatus(newStatus);
submission.setProgress(progress);
submission.setCounters(counters);
submission.setExternalLink(externalLink);
submission.setLastUpdateDate(new Date());
RepositoryManager.getInstance().getRepository().updateSubmission(submission);
}
private class PurgeThread extends Thread {
public PurgeThread() {
super("PurgeThread");
}
public void run() {
LOG.info("Starting submission manager purge thread");
while(running) {
try {
LOG.info("Purging old submissions");
Date threshold = new Date((new Date()).getTime() - purgeThreshold);
RepositoryManager.getInstance().getRepository().purgeSubmissions(threshold);
Thread.sleep(purgeSleep);
} catch (InterruptedException e) {
LOG.debug("Purge thread interrupted", e);
}
}
LOG.info("Ending submission manager purge thread");
}
}
private class UpdateThread extends Thread {
public UpdateThread() {
super("UpdateThread");
}
public void run() {
LOG.info("Starting submission manager update thread");
while(running) {
try {
LOG.debug("Updating running submissions");
// Let's get all running submissions from repository to check them out
List<MSubmission> unfinishedSubmissions =
RepositoryManager.getInstance().getRepository().findSubmissionsUnfinished();
for(MSubmission submission : unfinishedSubmissions) {
update(submission);
}
Thread.sleep(updateSleep);
} catch (InterruptedException e) {
LOG.debug("Purge thread interrupted", e);
}
}
LOG.info("Ending submission manager update thread");
}
}
}

557
core/src/main/java/org/apache/sqoop/framework/JobManager.java Normal file
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@ -0,0 +1,557 @@
/**
* 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.sqoop.framework;
import org.apache.log4j.Logger;
import org.apache.sqoop.common.MapContext;
import org.apache.sqoop.common.SqoopException;
import org.apache.sqoop.connector.ConnectorManager;
import org.apache.sqoop.connector.spi.SqoopConnector;
import org.apache.sqoop.core.SqoopConfiguration;
import org.apache.sqoop.framework.configuration.ExportJobConfiguration;
import org.apache.sqoop.framework.configuration.ImportJobConfiguration;
import org.apache.sqoop.job.etl.*;
import org.apache.sqoop.model.FormUtils;
import org.apache.sqoop.model.MConnection;
import org.apache.sqoop.model.MJob;
import org.apache.sqoop.model.MSubmission;
import org.apache.sqoop.repository.Repository;
import org.apache.sqoop.repository.RepositoryManager;
import org.apache.sqoop.submission.SubmissionStatus;
import org.apache.sqoop.submission.counter.Counters;
import org.apache.sqoop.utils.ClassUtils;
import org.json.simple.JSONValue;
import java.util.Date;
import java.util.List;
public class JobManager {
/**
* Logger object.
*/
private static final Logger LOG = Logger.getLogger(FrameworkManager.class);
/**
* Private instance to singleton of this class.
*/
private static JobManager instance;
/**
* Create default object by default.
*
* Every Sqoop server application needs one so this should not be performance issue.
*/
static {
instance = new JobManager();
}
/**
* Return current instance.
*
* @return Current instance
*/
public static JobManager getInstance() {
return instance;
}
/**
* Allows to set instance in case that it's need.
*
* This method should not be normally used as the default instance should be sufficient. One target
* user use case for this method are unit tests.
*
* @param newInstance New instance
*/
public static void setInstance(JobManager newInstance) {
instance = newInstance;
}
/**
* Default interval for purging old submissions from repository.
*/
private static final long DEFAULT_PURGE_THRESHOLD = 24*60*60*1000;
/**
* Default sleep interval for purge thread.
*/
private static final long DEFAULT_PURGE_SLEEP = 24*60*60*1000;
/**
* Default interval for update thread.
*/
private static final long DEFAULT_UPDATE_SLEEP = 60*5*1000;
/**
* Configured submission engine instance
*/
private SubmissionEngine submissionEngine;
/**
* Configured execution engine instance
*/
private ExecutionEngine executionEngine;
/**
* Purge thread that will periodically remove old submissions from repository.
*/
private PurgeThread purgeThread = null;
/**
* Update thread that will periodically check status of running submissions.
*/
private UpdateThread updateThread = null;
/**
* Synchronization variable between threads.
*/
private boolean running = true;
/**
* Specifies how old submissions should be removed from repository.
*/
private long purgeThreshold;
/**
* Number of milliseconds for purge thread to sleep.
*/
private long purgeSleep;
/**
* Number of milliseconds for update thread to slepp.
*/
private long updateSleep;
/**
* Mutex for creating new submissions. We're not allowing more then one
* running submission for one job.
*/
private final Object submissionMutex = new Object();
/**
* Base notification URL.
*
* Framework manager will always add job id.
*/
private String notificationBaseUrl;
/**
* Set notification base URL.
*
* @param url Base URL
*/
public void setNotificationBaseUrl(String url) {
LOG.debug("Setting notification base URL to " + url);
notificationBaseUrl = url;
}
/**
* Get base notification url.
*
* @return String representation of the URL
*/
public String getNotificationBaseUrl() {
return notificationBaseUrl;
}
public synchronized void destroy() {
LOG.trace("Begin submission engine manager destroy");
running = false;
try {
purgeThread.interrupt();
purgeThread.join();
} catch (InterruptedException e) {
//TODO(jarcec): Do I want to wait until it actually finish here?
LOG.error("Interrupted joining purgeThread");
}
try {
updateThread.interrupt();
updateThread.join();
} catch (InterruptedException e) {
//TODO(jarcec): Do I want to wait until it actually finish here?
LOG.error("Interrupted joining updateThread");
}
if(submissionEngine != null) {
submissionEngine.destroy();
}
if(executionEngine != null) {
executionEngine.destroy();
}
}
public synchronized void initialize() {
LOG.trace("Begin submission engine manager initialization");
MapContext context = SqoopConfiguration.getInstance().getContext();
// Let's load configured submission engine
String submissionEngineClassName =
context.getString(FrameworkConstants.SYSCFG_SUBMISSION_ENGINE);
submissionEngine = (SubmissionEngine) ClassUtils.instantiate(submissionEngineClassName);
if(submissionEngine == null) {
throw new SqoopException(FrameworkError.FRAMEWORK_0001,
submissionEngineClassName);
}
submissionEngine.initialize(context, FrameworkConstants.PREFIX_SUBMISSION_ENGINE_CONFIG);
// Execution engine
String executionEngineClassName =
context.getString(FrameworkConstants.SYSCFG_EXECUTION_ENGINE);
executionEngine = (ExecutionEngine) ClassUtils.instantiate(executionEngineClassName);
if(executionEngine == null) {
throw new SqoopException(FrameworkError.FRAMEWORK_0007,
executionEngineClassName);
}
// We need to make sure that user has configured compatible combination of
// submission engine and execution engine
if(! submissionEngine.isExecutionEngineSupported(executionEngine.getClass())) {
throw new SqoopException(FrameworkError.FRAMEWORK_0008);
}
executionEngine.initialize(context, FrameworkConstants.PREFIX_EXECUTION_ENGINE_CONFIG);
// Set up worker threads
purgeThreshold = context.getLong(
FrameworkConstants.SYSCFG_SUBMISSION_PURGE_THRESHOLD,
DEFAULT_PURGE_THRESHOLD
);
purgeSleep = context.getLong(
FrameworkConstants.SYSCFG_SUBMISSION_PURGE_SLEEP,
DEFAULT_PURGE_SLEEP
);
purgeThread = new PurgeThread();
purgeThread.start();
updateSleep = context.getLong(
FrameworkConstants.SYSCFG_SUBMISSION_UPDATE_SLEEP,
DEFAULT_UPDATE_SLEEP
);
updateThread = new UpdateThread();
updateThread.start();
LOG.info("Submission manager initialized: OK");
}
public MSubmission submit(long jobId) {
Repository repository = RepositoryManager.getInstance().getRepository();
MJob job = repository.findJob(jobId);
if(job == null) {
throw new SqoopException(FrameworkError.FRAMEWORK_0004,
"Unknown job id " + jobId);
}
MConnection connection = repository.findConnection(job.getConnectionId());
SqoopConnector connector =
ConnectorManager.getInstance().getConnector(job.getConnectorId());
// Transform forms to connector specific classes
Object connectorConnection = ClassUtils.instantiate(
connector.getConnectionConfigurationClass());
FormUtils.fromForms(connection.getConnectorPart().getForms(),
connectorConnection);
Object connectorJob = ClassUtils.instantiate(
connector.getJobConfigurationClass(job.getType()));
FormUtils.fromForms(job.getConnectorPart().getForms(), connectorJob);
// Transform framework specific forms
Object frameworkConnection = ClassUtils.instantiate(
FrameworkManager.getInstance().getConnectionConfigurationClass());
FormUtils.fromForms(connection.getFrameworkPart().getForms(),
frameworkConnection);
Object frameworkJob = ClassUtils.instantiate(
FrameworkManager.getInstance().getJobConfigurationClass(job.getType()));
FormUtils.fromForms(job.getFrameworkPart().getForms(), frameworkJob);
// Create request object
MSubmission summary = new MSubmission(jobId);
SubmissionRequest request = executionEngine.createSubmissionRequest();
// Save important variables to the submission request
request.setSummary(summary);
request.setConnector(connector);
request.setConfigConnectorConnection(connectorConnection);
request.setConfigConnectorJob(connectorJob);
request.setConfigFrameworkConnection(frameworkConnection);
request.setConfigFrameworkJob(frameworkJob);
request.setJobType(job.getType());
request.setJobName(job.getName());
request.setJobId(job.getPersistenceId());
request.setNotificationUrl(notificationBaseUrl + jobId);
// Let's register all important jars
// sqoop-common
request.addJarForClass(MapContext.class);
// sqoop-core
request.addJarForClass(FrameworkManager.class);
// sqoop-spi
request.addJarForClass(SqoopConnector.class);
// Execution engine jar
request.addJarForClass(executionEngine.getClass());
// Connector in use
request.addJarForClass(connector.getClass());
// Extra libraries that Sqoop code requires
request.addJarForClass(JSONValue.class);
// Get connector callbacks
switch (job.getType()) {
case IMPORT:
request.setConnectorCallbacks(connector.getImporter());
break;
case EXPORT:
request.setConnectorCallbacks(connector.getExporter());
break;
default:
throw new SqoopException(FrameworkError.FRAMEWORK_0005,
"Unsupported job type " + job.getType().name());
}
LOG.debug("Using callbacks: " + request.getConnectorCallbacks());
// Initialize submission from connector perspective
CallbackBase baseCallbacks = request.getConnectorCallbacks();
Class<? extends Initializer> initializerClass = baseCallbacks.getInitializer();
Initializer initializer = (Initializer) ClassUtils.instantiate(initializerClass);
if(initializer == null) {
throw new SqoopException(FrameworkError.FRAMEWORK_0006,
"Can't create initializer instance: " + initializerClass.getName());
}
// Initializer context
InitializerContext initializerContext = new InitializerContext(request.getConnectorContext());
// Initialize submission from connector perspective
initializer.initialize(initializerContext,
request.getConfigConnectorConnection(),
request.getConfigConnectorJob());
// Add job specific jars to
request.addJars(initializer.getJars(initializerContext,
request.getConfigConnectorConnection(),
request.getConfigConnectorJob()));
// Bootstrap job from framework perspective
switch (job.getType()) {
case IMPORT:
prepareImportSubmission(request);
break;
case EXPORT:
prepareExportSubmission(request);
break;
default:
throw new SqoopException(FrameworkError.FRAMEWORK_0005,
"Unsupported job type " + job.getType().name());
}
// Make sure that this job id is not currently running and submit the job
// only if it's not.
synchronized (submissionMutex) {
MSubmission lastSubmission = repository.findSubmissionLastForJob(jobId);
if(lastSubmission != null && lastSubmission.getStatus().isRunning()) {
throw new SqoopException(FrameworkError.FRAMEWORK_0002,
"Job with id " + jobId);
}
// TODO(jarcec): We might need to catch all exceptions here to ensure
// that Destroyer will be executed in all cases.
boolean submitted = submissionEngine.submit(request);
if(!submitted) {
destroySubmission(request);
summary.setStatus(SubmissionStatus.FAILURE_ON_SUBMIT);
}
repository.createSubmission(summary);
}
// Return job status most recent
return summary;
}
private void prepareImportSubmission(SubmissionRequest request) {
ImportJobConfiguration jobConfiguration = (ImportJobConfiguration) request.getConfigFrameworkJob();
// Initialize the map-reduce part (all sort of required classes, ...)
request.setOutputDirectory(jobConfiguration.output.outputDirectory);
// We're directly moving configured number of extractors and loaders to
// underlying request object. In the future we might need to throttle this
// count based on other running jobs to meet our SLAs.
request.setExtractors(jobConfiguration.throttling.extractors);
request.setLoaders(jobConfiguration.throttling.loaders);
// Delegate rest of the job to execution engine
executionEngine.prepareImportSubmission(request);
}
private void prepareExportSubmission(SubmissionRequest request) {
ExportJobConfiguration jobConfiguration = (ExportJobConfiguration) request.getConfigFrameworkJob();
// We're directly moving configured number of extractors and loaders to
// underlying request object. In the future we might need to throttle this
// count based on other running jobs to meet our SLAs.
request.setExtractors(jobConfiguration.throttling.extractors);
request.setLoaders(jobConfiguration.throttling.loaders);
// Delegate rest of the job to execution engine
executionEngine.prepareExportSubmission(request);
}
/**
* Callback that will be called only if we failed to submit the job to the
* remote cluster.
*/
private void destroySubmission(SubmissionRequest request) {
CallbackBase baseCallbacks = request.getConnectorCallbacks();
Class<? extends Destroyer> destroyerClass = baseCallbacks.getDestroyer();
Destroyer destroyer = (Destroyer) ClassUtils.instantiate(destroyerClass);
if(destroyer == null) {
throw new SqoopException(FrameworkError.FRAMEWORK_0006,
"Can't create destroyer instance: " + destroyerClass.getName());
}
DestroyerContext destroyerContext = new DestroyerContext(request.getConnectorContext(), false);
// Initialize submission from connector perspective
destroyer.destroy(destroyerContext, request.getConfigConnectorConnection(), request.getConfigConnectorJob());
}
public MSubmission stop(long jobId) {
Repository repository = RepositoryManager.getInstance().getRepository();
MSubmission submission = repository.findSubmissionLastForJob(jobId);
if(submission == null || !submission.getStatus().isRunning()) {
throw new SqoopException(FrameworkError.FRAMEWORK_0003,
"Job with id " + jobId + " is not running");
}
String externalId = submission.getExternalId();
submissionEngine.stop(externalId);
// Fetch new information to verify that the stop command has actually worked
update(submission);
// Return updated structure
return submission;
}
public MSubmission status(long jobId) {
Repository repository = RepositoryManager.getInstance().getRepository();
MSubmission submission = repository.findSubmissionLastForJob(jobId);
if(submission == null) {
return new MSubmission(jobId, new Date(), SubmissionStatus.NEVER_EXECUTED);
}
// If the submission is in running state, let's update it
if(submission.getStatus().isRunning()) {
update(submission);
}
return submission;
}
private void update(MSubmission submission) {
double progress = -1;
Counters counters = null;
String externalId = submission.getExternalId();
SubmissionStatus newStatus = submissionEngine.status(externalId);
String externalLink = submissionEngine.externalLink(externalId);
if(newStatus.isRunning()) {
progress = submissionEngine.progress(externalId);
} else {
counters = submissionEngine.counters(externalId);
}
submission.setStatus(newStatus);
submission.setProgress(progress);
submission.setCounters(counters);
submission.setExternalLink(externalLink);
submission.setLastUpdateDate(new Date());
RepositoryManager.getInstance().getRepository().updateSubmission(submission);
}
private class PurgeThread extends Thread {
public PurgeThread() {
super("PurgeThread");
}
public void run() {
LOG.info("Starting submission manager purge thread");
while(running) {
try {
LOG.info("Purging old submissions");
Date threshold = new Date((new Date()).getTime() - purgeThreshold);
RepositoryManager.getInstance().getRepository().purgeSubmissions(threshold);
Thread.sleep(purgeSleep);
} catch (InterruptedException e) {
LOG.debug("Purge thread interrupted", e);
}
}
LOG.info("Ending submission manager purge thread");
}
}
private class UpdateThread extends Thread {
public UpdateThread() {
super("UpdateThread");
}
public void run() {
LOG.info("Starting submission manager update thread");
while(running) {
try {
LOG.debug("Updating running submissions");
// Let's get all running submissions from repository to check them out
List<MSubmission> unfinishedSubmissions =
RepositoryManager.getInstance().getRepository().findSubmissionsUnfinished();
for(MSubmission submission : unfinishedSubmissions) {
update(submission);
}
Thread.sleep(updateSleep);
} catch (InterruptedException e) {
LOG.debug("Purge thread interrupted", e);
}
}
LOG.info("Ending submission manager update thread");
}
}
}

13
server/src/main/java/org/apache/sqoop/handler/SubmissionRequestHandler.java
View File

@ -20,6 +20,7 @@
import org.apache.log4j.Logger;
import org.apache.sqoop.common.SqoopException;
import org.apache.sqoop.framework.FrameworkManager;
import org.apache.sqoop.framework.JobManager;
import org.apache.sqoop.json.JsonBean;
import org.apache.sqoop.json.SubmissionBean;
import org.apache.sqoop.model.MSubmission;
@ -78,7 +79,7 @@ public JsonBean handleEvent(RequestContext ctx) {
private JsonBean handleNotification(RequestContext ctx, String sjid) {
logger.debug("Received notification request for job " + sjid);
FrameworkManager.getInstance().status(Long.parseLong(sjid));
JobManager.getInstance().status(Long.parseLong(sjid));
return JsonBean.EMPTY_BEAN;
}
@ -90,9 +91,9 @@ private JsonBean handleActionEvent(RequestContext ctx, String sjid) {
return submissionStatus(jid);
case POST:
// TODO: This should be outsourced somewhere more suitable than here
if(FrameworkManager.getInstance().getNotificationBaseUrl() == null) {
if(JobManager.getInstance().getNotificationBaseUrl() == null) {
String url = ctx.getRequest().getRequestURL().toString();
FrameworkManager.getInstance().setNotificationBaseUrl(
JobManager.getInstance().setNotificationBaseUrl(
url.split("v1")[0] + "/v1/submission/notification/");
}
return submissionSubmit(jid);
@ -104,17 +105,17 @@ private JsonBean handleActionEvent(RequestContext ctx, String sjid) {
}
private JsonBean submissionStop(long jid) {
MSubmission submission = FrameworkManager.getInstance().stop(jid);
MSubmission submission = JobManager.getInstance().stop(jid);
return new SubmissionBean(submission);
}
private JsonBean submissionSubmit(long jid) {
MSubmission submission = FrameworkManager.getInstance().submit(jid);
MSubmission submission = JobManager.getInstance().submit(jid);
return new SubmissionBean(submission);
}
private JsonBean submissionStatus(long jid) {
MSubmission submission = FrameworkManager.getInstance().status(jid);
MSubmission submission = JobManager.getInstance().status(jid);
return new SubmissionBean(submission);
}
}