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https://issues.apache.org/jira/browse/YARN-11420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17680726#comment-17680726
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ASF GitHub Bot commented on YARN-11420:
---------------------------------------
szilard-nemeth commented on code in PR #5317:
URL: https://github.com/apache/hadoop/pull/5317#discussion_r1086928113
##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/MiniYARNCluster.java:
##########
@@ -456,6 +456,19 @@ public int getActiveRMIndex() {
return -1;
}
+ /**
+ * Stop a MiniYarnCluster can take more than 30s what blocks the test
execution,
+ * so to prevent that we can start the cluster stop asynchronously,
+ * what can decrease the test execution time.
+ * @param owner the Test class, what owns the instance of MiniYarnCluster
+ */
+ public void asyncStop(Object owner) {
Review Comment:
```suggestion
* Stopping MiniYarnCluster can take more than 30 seconds and it's a
blocking operation so it blocks test execution,
* so to prevent that we can stop the cluster asynchronously,
* that can ultimately save test execution time.
* @param owner the Test class that owns the instance of MiniYarnCluster
*/
public void asyncStop(Object owner) {
```
> Stabilize TestNMClient
> ----------------------
>
> Key: YARN-11420
> URL: https://issues.apache.org/jira/browse/YARN-11420
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: yarn
> Affects Versions: 3.4.0
> Reporter: Bence Kosztolnik
> Priority: Major
> Labels: pull-request-available
>
> The TestNMClient test methods can stuck if the test container fails, while
> the test is expecting it running state. This can happen for example if the
> container fails due low memory. To fix this the test should tolerate some
> failure like this.
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