HADOOP-7045. TestDU fails on systems with local file systems with extended attributes. Contributed by Eli Collins
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1036746 13f79535-47bb-0310-9956-ffa450edef68
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@ -19,6 +19,9 @@ Trunk (unreleased changes)
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whose entries are changing (e.g. in a multi-thread or multi-process
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environment). (Sanjay Radia via eli)
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HADOOP-7045. TestDU fails on systems with local file systems with
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extended attributes. (eli)
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Release 0.22.0 - Unreleased
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INCOMPATIBLE CHANGES
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@ -65,7 +65,10 @@ private void createFile(File newFile, int size) throws IOException {
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* @throws InterruptedException
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*/
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public void testDU() throws IOException, InterruptedException {
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int writtenSize = 32*1024; // writing 32K
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final int writtenSize = 32*1024; // writing 32K
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// Allow for extra 4K on-disk slack for local file systems
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// that may store additional file metadata (eg ext attrs).
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final int slack = 4*1024;
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File file = new File(DU_DIR, "data");
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createFile(file, writtenSize);
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@ -76,7 +79,9 @@ public void testDU() throws IOException, InterruptedException {
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long duSize = du.getUsed();
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du.shutdown();
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assertEquals(writtenSize, duSize);
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assertTrue("Invalid on-disk size",
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duSize >= writtenSize &&
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writtenSize <= (duSize + slack));
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//test with 0 interval, will not launch thread
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du = new DU(file, 0);
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@ -84,12 +89,16 @@ public void testDU() throws IOException, InterruptedException {
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duSize = du.getUsed();
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du.shutdown();
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assertEquals(writtenSize, duSize);
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assertTrue("Invalid on-disk size",
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duSize >= writtenSize &&
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writtenSize <= (duSize + slack));
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//test without launching thread
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du = new DU(file, 10000);
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duSize = du.getUsed();
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assertEquals(writtenSize, duSize);
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assertTrue("Invalid on-disk size",
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duSize >= writtenSize &&
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writtenSize <= (duSize + slack));
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}
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}
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