Dongjoon Hyun created HDFS-17633:
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Summary: `CombinedFileRange.merge` should not convert disjoint
ranges into overlapped ones
Key: HDFS-17633
URL: https://issues.apache.org/jira/browse/HDFS-17633
Project: Hadoop HDFS
Issue Type: Bug
Components: common
Affects Versions: 3.3.9, 3.4.1, 3.5.0
Reporter: Dongjoon Hyun
Attachments: Screenshot 2024-09-28 at 21.59.09.png
Currently, Hadoop has a bug to convert disjoint ranges into overlapped ones and
eventually fails by itself.
!Screenshot 2024-09-28 at 21.59.09.png!
{code}
+ public void testMergeSortedRanges() {
+ List<FileRange> input = asList(
+ createFileRange(13816220, 24, null),
+ createFileRange(13816244, 7423960, null)
+ );
+ assertIsNotOrderedDisjoint(input, 100, 800);
+ final List<CombinedFileRange> outputList = mergeSortedRanges(
+ sortRangeList(input), 100, 1001, 2500);
+
+ assertRangeListSize(outputList, 1);
+ assertFileRange(outputList.get(0), 13816200, 7424100);
+ }
{code}
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