Revert "HADOOP-16878. FileUtil.copy() to throw IOException if the source and destination are the same (#2383)"
This reverts commit 54c40cbf49f2ebf4bbc1976279a6eba7a2c5fe23.
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileUtil.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileUtil.java
index 444f992..e9a650d 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileUtil.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileUtil.java
@@ -398,12 +398,6 @@
Configuration conf) throws IOException {
Path src = srcStatus.getPath();
dst = checkDest(src.getName(), dstFS, dst, overwrite);
-
- if (srcFS.makeQualified(src).equals(dstFS.makeQualified(dst))) {
- throw new PathOperationException("Source (" + src + ") and destination " +
- "(" + dst + ") are equal in the copy command.");
- }
-
if (srcStatus.isDirectory()) {
checkDependencies(srcFS, src, dstFS, dst);
if (!dstFS.mkdirs(dst)) {
diff --git a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestFsShellCopy.java b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestFsShellCopy.java
index e3c4ee0..91cc9bc 100644
--- a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestFsShellCopy.java
+++ b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestFsShellCopy.java
@@ -35,7 +35,6 @@
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.test.GenericTestUtils;
-import org.apache.hadoop.test.LambdaTestUtils;
import org.apache.hadoop.util.StringUtils;
import org.junit.Before;
import org.junit.BeforeClass;
@@ -177,20 +176,7 @@
checkPut(dirPath, targetDir, true);
}
- @Test
- public void testCopyBetweenFsEqualPath() throws Exception {
- Path testRoot = new Path(testRootDir, "testPutFile");
- lfs.delete(testRoot, true);
- lfs.mkdirs(testRoot);
-
- Path filePath = new Path(testRoot, "sameSourceTarget");
- lfs.create(filePath).close();
- final FileStatus status = lfs.getFileStatus(filePath);
- LambdaTestUtils.intercept(PathOperationException.class, () ->
- FileUtil.copy(lfs, status, lfs, filePath, false, true, conf)
- );
- }
-
+
private void checkPut(Path srcPath, Path targetDir, boolean useWindowsPath)
throws Exception {
lfs.delete(targetDir, true);
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDistributedFileSystem.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDistributedFileSystem.java
index e96bd62..c4c5e17 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDistributedFileSystem.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDistributedFileSystem.java
@@ -65,7 +65,6 @@
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileAlreadyExistsException;
import org.apache.hadoop.fs.FileSystem.Statistics.StatisticsData;
-import org.apache.hadoop.fs.FileUtil;
import org.apache.hadoop.fs.FsServerDefaults;
import org.apache.hadoop.fs.FileChecksum;
import org.apache.hadoop.fs.FileStatus;
@@ -76,7 +75,6 @@
import org.apache.hadoop.fs.Options.ChecksumOpt;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.PathIsNotEmptyDirectoryException;
-import org.apache.hadoop.fs.PathOperationException;
import org.apache.hadoop.fs.RemoteIterator;
import org.apache.hadoop.fs.StorageStatistics.LongStatistic;
import org.apache.hadoop.fs.StorageType;
@@ -2107,18 +2105,4 @@
assertFalse(result.isSupported());
}
}
-
- @Test
- public void testCopyBetweenFsEqualPath() throws Exception {
- Configuration conf = getTestConfiguration();
- try (MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build()) {
- cluster.waitActive();
- final DistributedFileSystem dfs = cluster.getFileSystem();
- Path filePath = new Path("/dir/file");
- dfs.create(filePath).close();
- FileStatus fstatus = dfs.getFileStatus(filePath);
- LambdaTestUtils.intercept(PathOperationException.class,
- () -> FileUtil.copy(dfs, fstatus, dfs, filePath, false, true, conf));
- }
- }
}
