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https://issues.apache.org/jira/browse/ARTEMIS-2002?focusedWorklogId=262837&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-262837
]
ASF GitHub Bot logged work on ARTEMIS-2002:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 19/Jun/19 07:30
Start Date: 19/Jun/19 07:30
Worklog Time Spent: 10m
Work Description: franz1981 commented on pull request #2707: ARTEMIS-2002
Proton transport objects leaked
URL: https://github.com/apache/activemq-artemis/pull/2707#discussion_r295156216
##########
File path:
artemis-protocols/artemis-amqp-protocol/src/main/java/org/apache/activemq/artemis/protocol/amqp/proton/AMQPConnectionContext.java
##########
@@ -183,6 +191,17 @@ public void flush() {
}
public void close(ErrorCondition errorCondition) {
+ synchronized (schedulingLock) {
+ isSchedulingCancelled = true;
+
+ if (scheduledPool != null && scheduledPool instanceof
ThreadPoolExecutor &&
+ scheduledFuture != null && scheduledFuture instanceof Runnable) {
+ if (!((ThreadPoolExecutor) scheduledPool).remove((Runnable)
scheduledFuture)) {
Review comment:
Yep, but the resources that can actually lead to OOM are not the Runnable,
but the context that the Runnable(s) contains: If such context is referenced in
an explicit, but `WeakReference` it would prevent it to be collected. Then
`Runnable` will be then removed on the next (supposed) fire, without affecting
scalability.
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Issue Time Tracking
-------------------
Worklog Id: (was: 262837)
Time Spent: 2.5h (was: 2h 20m)
> Proton transport objects leaked if client disconnects abruptly leading to
> OutOfMemoryError: Java heap space
> -----------------------------------------------------------------------------------------------------------
>
> Key: ARTEMIS-2002
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2002
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: AMQP
> Affects Versions: 2.6.2
> Reporter: Keith Wall
> Priority: Major
> Attachments: ARTEMIS-2002-OOMEHeap-ProtonObjectsLeaked.png
>
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> If an AMQP client with an attached receiving link disconnects abruptly (i.e.
> closes socket without sending the AMQP close performative), {{TransportImpl}}
> and other Proton class instances remain referenced within the heap. If many
> such clients do this, an OutOfMemoryError: Java heap space occurs. This
> occurs even though the underlying socket connection has been closed.
> I have reproduced this issue against both 2.6.2 and master
> (f0c13622ac7e821a81a354b0242ef5235b6e82df).
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