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https://issues.apache.org/jira/browse/SCB-658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16507559#comment-16507559
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ASF GitHub Bot commented on SCB-658:
------------------------------------
wujimin commented on a change in pull request #761: [SCB-658]
MicroserviceVersions eventbus leak
URL:
https://github.com/apache/incubator-servicecomb-java-chassis/pull/761#discussion_r194276928
##########
File path:
service-registry/src/test/java/org/apache/servicecomb/serviceregistry/consumer/TestMicroserviceManager.java
##########
@@ -98,11 +100,23 @@ public void testCreateRuleServiceNotExists() {
}
};
+ AtomicInteger triggerCount = new AtomicInteger();
+ new MockUp<MicroserviceVersions>() {
+ @Mock
+ void onMicroserviceInstanceChanged(MicroserviceInstanceChangedEvent
changedEvent) {
+ triggerCount.incrementAndGet();
+ }
+ };
+
MicroserviceVersionRule microserviceVersionRule =
microserviceManager.getOrCreateMicroserviceVersionRule(serviceName,
versionRule);
Assert.assertEquals("0.0.0+",
microserviceVersionRule.getVersionRule().getVersionRule());
Assert.assertNull(microserviceVersionRule.getLatestMicroserviceVersion());
Assert.assertEquals(0, cachedVersions.size());
+
+ MicroserviceInstanceChangedEvent changedEvent = new
MicroserviceInstanceChangedEvent();
+ eventBus.post(changedEvent);
+ Assert.assertEquals(0, triggerCount.get());
Review comment:
it can verify the unregister really
if delete the unregister code, then this case will failed.
when invoke microserviceManager.getOrCreateMicroserviceVersionRule
if related MicroserviceVersions is not exist, will create a new instance,
the instance will register to eventBus
if some error happend, the created MicroserviceVersions will be removed from
microserviceManager automaticlly
if not unregister from eventBus, then triggerCount will be 1 not 0
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> leak of MicroserviceVersions register to EventBus
> -------------------------------------------------
>
> Key: SCB-658
> URL: https://issues.apache.org/jira/browse/SCB-658
> Project: Apache ServiceComb
> Issue Type: Bug
> Components: Java-Chassis
> Reporter: wujimin
> Assignee: wujimin
> Priority: Major
>
> org.apache.servicecomb.serviceregistry.consumer.MicroserviceManager#getOrCreateMicroserviceVersions
> when removed from versionsByName, microserviceVersions must unregistered from
> eventBus
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