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https://issues.apache.org/jira/browse/HADOOP-18695?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17712366#comment-17712366
 ] 

ASF GitHub Bot commented on HADOOP-18695:
-----------------------------------------

steveloughran commented on code in PR #5548:
URL: https://github.com/apache/hadoop/pull/5548#discussion_r1166788483


##########
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java:
##########
@@ -2590,6 +2591,25 @@ protected DurationTrackerFactory 
getDurationTrackerFactory() {
         : null;
   }
 
+  /**
+   * Given a possibly null duration tracker factory, return a non-null
+   * one for use in tracking durations.
+   *
+   * @param factory factory.
+   * @return a non-null factory.
+   */
+  protected DurationTrackerFactory nonNullDurationTrackerFactory(
+      DurationTrackerFactory factory) {
+    DurationTrackerFactory f = factory;
+    if (f == null) {
+      f = getDurationTrackerFactory();
+      if (f == null) {
+        f = emptyStatisticsStore();
+      }
+    }
+    return f;
+  }

Review Comment:
   oh,because I'd missed that :) will fix.





> S3A: reject multipart copy requests when disabled
> -------------------------------------------------
>
>                 Key: HADOOP-18695
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18695
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs/s3
>    Affects Versions: 3.4.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Minor
>              Labels: pull-request-available
>
> follow-on to HADOOP-18637 and support for huge file uploads with stores which 
> don't support MPU.
> * prevent use of API against any s3 store when disabled, using logging 
> auditor to reject it
> * tests to verify rename of huge files still works (by setting large part 
> size)



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