[
https://issues.apache.org/jira/browse/ARTEMIS-2392?focusedWorklogId=265280&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-265280
]
ASF GitHub Bot logged work on ARTEMIS-2392:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 22/Jun/19 13:23
Start Date: 22/Jun/19 13:23
Worklog Time Spent: 10m
Work Description: franz1981 commented on pull request #2726: ARTEMIS-2392
Enable remove on cancel policy for scheduled pool
URL: https://github.com/apache/activemq-artemis/pull/2726#discussion_r296445672
##########
File path:
artemis-server/src/test/java/org/apache/activemq/artemis/core/server/impl/ActiveMQServerImplTest.java
##########
@@ -0,0 +1,56 @@
+/*
+ * 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.activemq.artemis.core.server.impl;
+
+import java.lang.ref.WeakReference;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.activemq.artemis.core.server.ActiveMQServer;
+import org.apache.activemq.artemis.utils.ThreadLeakCheckRule;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class ActiveMQServerImplTest {
+
+ @Test
+ public void testScheduledPoolGC() throws Exception {
+ ActiveMQServer server = new ActiveMQServerImpl();
+
+ server.start();
+
+ WeakReference<Runnable> scheduledRunnableRef;
+ {
+ Runnable scheduledRunnable = new Runnable() { @Override public void
run() { } };
+ scheduledRunnableRef = new WeakReference<>(scheduledRunnable);
+
+ ScheduledFuture scheduledFuture =
server.getScheduledPool().schedule(scheduledRunnable, 5000,
TimeUnit.MILLISECONDS);
+
+ scheduledFuture.cancel(true);
+ }
+
+ Assert.assertNotEquals(null, scheduledRunnableRef.get());
Review comment:
GC is not precise (when things got out of scope/not referenced they got
collected immediately) and depend on the type of GC chosen: probably you need
to issue (full) GC and right after check the weak reference, but it is not
reliable enough. We have other tests that do something similar using an ad-hoc
call to GC, will point you them on Monday
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
Issue Time Tracking
-------------------
Worklog Id: (was: 265280)
Time Spent: 40m (was: 0.5h)
> Enable remove on cancel policy for scheduled pool
> -------------------------------------------------
>
> Key: ARTEMIS-2392
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2392
> Project: ActiveMQ Artemis
> Issue Type: Improvement
> Components: Broker
> Affects Versions: 2.9.0
> Reporter: Domenico Bruscino
> Priority: Major
> Time Spent: 40m
> Remaining Estimate: 0h
>
> When a submitted task is cancelled before it is run, execution is suppressed.
> By default, such a cancelled task is not automatically removed from the work
> queue until its delay elapses. While this enables further inspection and
> monitoring, it may also cause unbounded retention of cancelled tasks. To
> avoid this, set remove on cancel policy to true, which causes tasks to be
> immediately removed from the work queue at time of cancellation.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
