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Posted to issues@activemq.apache.org by "Justin Bertram (Jira)" <ji...@apache.org> on 2021/11/02 21:08:00 UTC

[jira] [Deleted] (ARTEMIS-3551) CLONE - addPacket method in the org.apache.activemq.artemis.core.client.impl.LargeMessageControllerImpl doesn't notify threads in case of an Exception

     [ https://issues.apache.org/jira/browse/ARTEMIS-3551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Justin Bertram deleted ARTEMIS-3551:
------------------------------------


> CLONE - addPacket method in the org.apache.activemq.artemis.core.client.impl.LargeMessageControllerImpl  doesn't notify threads in case of an Exception
> -------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: ARTEMIS-3551
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-3551
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>            Reporter: Rico Neubauer
>            Priority: Major
>
> Hi, kindly asking to re-look into this issue.
> Artemis 2.19.0
> Experienced the same situation and will provide small patch to provoke the situation (see below - including the #notifyAll already).
> An error on #addPacket results in the #waitCompletion method waiting until call–timeout (default=30 sec). Having several threads in this situation then leads to all of them waiting until timeout.
> Furthermore, it seems that at least while large messages are produced in parallel, this also has an impact on other client-consumers, that are not fed anymore - however this I could not reproduce reliable, so no hard evidence for that.
> My proposal is like [~pmolchanov2002] also suggested to add the #notifyAll in the exceptional case.
>  
> [^ARTEMIS-2293-Test.patch]
>  
> Following is the original description:
>  
> Block that handles exceptions in the catch(Exception e) doesn't call notifyAll(). That cause that other working threads are not released in the waitCompletion method.
> [https://github.com/apache/activemq-artemis/blob/master/artemis-core-client/src/main/java/org/apache/activemq/artemis/core/client/impl/LargeMessageControllerImpl.java]
>  
> addPacket method:
> {code:java}
> public void addPacket(byte[] chunk, int flowControlSize, boolean isContinues) {
> 	int flowControlCredit = 0;
> 	
> 	synchronized (this) {
> 	packetAdded = true;
> 	if (outStream != null) {
> 	try {
> 	if (!isContinues) {
> 	streamEnded = true;
> 	}
> 	
> 	if (fileCache != null) {
> 	fileCache.cachePackage(chunk);
> 	}
> 	
> 	outStream.write(chunk);
> 	
> 	flowControlCredit = flowControlSize;
> 	
> 	notifyAll();
> 	
> 	if (streamEnded) {
> 	outStream.close();
> 	}
> 	} catch (Exception e) {
> 	ActiveMQClientLogger.LOGGER.errorAddingPacket(e);
> 	handledException = e;
> 	}
> 	} else {
> 	if (fileCache != null) {
> 	try {
> 	fileCache.cachePackage(chunk);
> 	} catch (Exception e) {
> 	ActiveMQClientLogger.LOGGER.errorAddingPacket(e);
> 	handledException = e;
> 	}
> 	}
> 	
> 	largeMessageData.offer(new LargeData(chunk, flowControlSize, isContinues));
> 	}
> 	}{code}
>  
> waitCompletion method:
> {code:java}
> public synchronized boolean waitCompletion(final long timeWait) throws ActiveMQException {
> 	if (outStream == null) {
> 	// There is no stream.. it will never achieve the end of streaming
> 	return false;
> 	}
> 	
> 	long timeOut;
> 	
> 	// If timeWait = 0, we will use the readTimeout
> 	// And we will check if no packets have arrived within readTimeout milliseconds
> 	if (timeWait != 0) {
> 	timeOut = System.currentTimeMillis() + timeWait;
> 	} else {
> 	timeOut = System.currentTimeMillis() + readTimeout;
> 	}
> 	
> 	while (!streamEnded && handledException == null) {
> 	try {
> 	this.wait(timeWait == 0 ? readTimeout : timeWait);
> 	} catch (InterruptedException e) {
> 	throw new ActiveMQInterruptedException(e);
> 	}
> 	
> 	if (!streamEnded && handledException == null) {
> 	if (timeWait != 0 && System.currentTimeMillis() > timeOut) {
> 	throw ActiveMQClientMessageBundle.BUNDLE.timeoutOnLargeMessage();
> 	} else if (System.currentTimeMillis() > timeOut && !packetAdded) {
> 	throw ActiveMQClientMessageBundle.BUNDLE.timeoutOnLargeMessage();
> 	}
> 	}
> 	}
> 	
> 	checkException();
> 	
> 	return streamEnded;
> 	
> 	}{code}
>  
>  



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