mukund-thakur commented on a change in pull request #2113:
URL: https://github.com/apache/hadoop/pull/2113#discussion_r450705856
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File path:
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3AFileOperationCost.java
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@@ -574,4 +574,48 @@ public void testCreateCost() throws Throwable {
}
}
+
+ @Test
+ public void testCostOfGlobStatus() throws Throwable {
+ describe("Test globStatus has expected cost");
+ S3AFileSystem fs = getFileSystem();
+ assume("Unguarded FS only", !fs.hasMetadataStore());
+
+ Path basePath = path("testCostOfGlobStatus/nextFolder/");
+
+ // create a bunch of files
+ int filesToCreate = 10;
+ for (int i = 0; i < filesToCreate; i++) {
+ try (FSDataOutputStream out = fs.create(basePath.suffix("/" + i))) {
+ verifyOperationCount(1, 1);
+ }
+ }
+
+ fs.globStatus(basePath.suffix("/*"));
+ // 2 head + 1 list from getFileStatus on path,
+ // plus 1 list to match the glob pattern
+ verifyOperationCount(2, 2);
+ }
+
+ @Test
+ public void testCostOfGlobStatusNoSymlinkResolution() throws Throwable {
Review comment:
I got it it.
https://github.com/apache/hadoop/blob/f77bbc2123e3b39117f42e2c9471eb83da98380e/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/Globber.java#L292
Thanks.
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