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HADOOP-17306. RawLocalFileSystem's lastModifiedTime() looses milli seconds in JDK < 10.b09 (#2387)

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Vinayakumar B 2020-10-23 11:30:02 +05:30
parent 02709cb054
commit e21b81276e
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2 changed files with 32 additions and 3 deletions
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11
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/RawLocalFileSystem.java
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@ -72,7 +72,12 @@ public class RawLocalFileSystem extends FileSystem {
public static void useStatIfAvailable() {
useDeprecatedFileStatus = !Stat.isAvailable();
}
@VisibleForTesting
static void setUseDeprecatedFileStatus(boolean useDeprecatedFileStatus) {
RawLocalFileSystem.useDeprecatedFileStatus = useDeprecatedFileStatus;
}
public RawLocalFileSystem() {
workingDir = getInitialWorkingDirectory();
}
@ -700,8 +705,8 @@ private static long getLastAccessTime(File f) throws IOException {
DeprecatedRawLocalFileStatus(File f, long defaultBlockSize, FileSystem fs)
throws IOException {
super(f.length(), f.isDirectory(), 1, defaultBlockSize,
f.lastModified(), getLastAccessTime(f),
null, null, null,
Files.getLastModifiedTime(f.toPath()).toMillis(),
getLastAccessTime(f),null, null, null,
new Path(f.getPath()).makeQualified(fs.getUri(),
fs.getWorkingDirectory()));
}

24
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestRawLocalFileSystemContract.java
View File

@ -203,4 +203,28 @@ public void testPermission() throws Exception {
}
}
@Test
public void testMTimeAtime() throws IOException {
RawLocalFileSystem.setUseDeprecatedFileStatus(true);
try {
Path testDir = getTestBaseDir();
String testFilename = "testmtime";
Path path = new Path(testDir, testFilename);
Path file = new Path(path, "file");
fs.create(file);
long now = System.currentTimeMillis();
long mtime = (now % 1000 == 0) ? now + 1 : now;
long atime = (now % 1000 == 0) ? now + 2 : now;
fs.setTimes(file, mtime, atime);
FileStatus fileStatus = fs.getFileStatus(file);
if (!Shell.MAC) {
// HADOOP-17306 ; Skip MacOS because HFS+ does not support
// milliseconds for mtime.
assertEquals(mtime, fileStatus.getModificationTime());
}
assertEquals(atime, fileStatus.getAccessTime());
} finally {
RawLocalFileSystem.useStatIfAvailable();
}
}
}