diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java index f2283eae7c..ac976d3911 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java @@ -1199,7 +1199,8 @@ static void verifyQuota(INodesInPath iip, int pos, QuotaCounts deltas, // check existing components in the path for(int i = (pos > iip.length() ? iip.length(): pos) - 1; i >= 0; i--) { - if (commonAncestor == iip.getINode(i)) { + if (commonAncestor == iip.getINode(i) + && !commonAncestor.isInLatestSnapshot(iip.getLatestSnapshotId())) { // Stop checking for quota when common ancestor is reached return; } diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/snapshot/TestSnapshotRename.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/snapshot/TestSnapshotRename.java index 1d46e4ee92..818f56ae38 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/snapshot/TestSnapshotRename.java +++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/snapshot/TestSnapshotRename.java @@ -33,6 +33,7 @@ import org.apache.hadoop.hdfs.DistributedFileSystem; import org.apache.hadoop.hdfs.MiniDFSCluster; import org.apache.hadoop.hdfs.protocol.HdfsConstants; +import org.apache.hadoop.hdfs.protocol.NSQuotaExceededException; import org.apache.hadoop.hdfs.protocol.SnapshotException; import org.apache.hadoop.hdfs.server.namenode.FSDirectory; import org.apache.hadoop.hdfs.server.namenode.FSNamesystem; @@ -41,6 +42,7 @@ import org.apache.hadoop.hdfs.util.ReadOnlyList; import org.apache.hadoop.ipc.RemoteException; import org.apache.hadoop.test.GenericTestUtils; +import org.apache.hadoop.test.LambdaTestUtils; import org.junit.After; import org.junit.Before; import org.junit.Rule; @@ -280,4 +282,150 @@ public void testRenameSnapshotCommandWithIllegalArguments() throws Exception { System.setErr(oldErr); } } + + // Test rename of a snapshotted by setting quota in same directory. + @Test + public void testQuotaAndRenameWithSnapshot() throws Exception { + String dirr = "/dir2"; + Path dir2 = new Path(dirr); + Path fil1 = new Path(dir2, "file1"); + hdfs.mkdirs(dir2); + hdfs.setQuota(dir2, 3, 0); + hdfs.allowSnapshot(dir2); + hdfs.create(fil1); + hdfs.createSnapshot(dir2, "snap1"); + Path file2 = new Path(dir2, "file2"); + hdfs.rename(fil1, file2); + hdfs.getFileStatus(dir2); + Path filex = new Path(dir2, "filex"); + // create a file after exceeding namespace quota + LambdaTestUtils.intercept(NSQuotaExceededException.class, + "The NameSpace quota (directories and files) of " + + "directory /dir2 is exceeded", + () -> hdfs.create(filex)); + hdfs.createSnapshot(dir2, "snap2"); + // rename a file after exceeding namespace quota + Path file3 = new Path(dir2, "file3"); + LambdaTestUtils + .intercept(NSQuotaExceededException.class, + "The NameSpace quota (directories and files) of" + + " directory /dir2 is exceeded", + () -> hdfs.rename(file2, file3)); + } + + // Test Rename across directories within snapshot with quota set on source + // directory. + @Test + public void testRenameAcrossDirWithinSnapshot() throws Exception { + // snapshottable directory + String dirr = "/dir"; + Path rootDir = new Path(dirr); + hdfs.mkdirs(rootDir); + hdfs.allowSnapshot(rootDir); + + // set quota for source directory under snapshottable root directory + Path dir2 = new Path(rootDir, "dir2"); + Path fil1 = new Path(dir2, "file1"); + hdfs.mkdirs(dir2); + hdfs.setQuota(dir2, 3, 0); + hdfs.create(fil1); + Path file2 = new Path(dir2, "file2"); + hdfs.rename(fil1, file2); + Path fil3 = new Path(dir2, "file3"); + hdfs.create(fil3); + + // destination directory under snapshottable root directory + Path dir1 = new Path(rootDir, "dir1"); + Path dir1fil1 = new Path(dir1, "file1"); + hdfs.mkdirs(dir1); + hdfs.create(dir1fil1); + Path dir1fil2 = new Path(dir1, "file2"); + hdfs.rename(dir1fil1, dir1fil2); + + hdfs.createSnapshot(rootDir, "snap1"); + Path filex = new Path(dir2, "filex"); + // create a file after exceeding namespace quota + LambdaTestUtils.intercept(NSQuotaExceededException.class, + "The NameSpace quota (directories and files) of " + + "directory /dir/dir2 is exceeded", + () -> hdfs.create(filex)); + + // Rename across directories within snapshot with quota set on source + // directory + assertTrue(hdfs.rename(fil3, dir1)); + } + + // Test rename within the same directory within a snapshottable root with + // quota set. + @Test + public void testRenameInSameDirWithSnapshotableRoot() throws Exception { + + // snapshottable root directory + String rootStr = "/dir"; + Path rootDir = new Path(rootStr); + hdfs.mkdirs(rootDir); + hdfs.setQuota(rootDir, 3, 0); + hdfs.allowSnapshot(rootDir); + + // rename to be performed directory + String dirr = "dir2"; + Path dir2 = new Path(rootDir, dirr); + Path fil1 = new Path(dir2, "file1"); + hdfs.mkdirs(dir2); + hdfs.create(fil1); + hdfs.createSnapshot(rootDir, "snap1"); + Path file2 = new Path(dir2, "file2"); + // rename a file after exceeding namespace quota + LambdaTestUtils + .intercept(NSQuotaExceededException.class, + "The NameSpace quota (directories and files) of" + + " directory /dir is exceeded", + () -> hdfs.rename(fil1, file2)); + + } + + // Test rename from a directory under snapshottable root to a directory with + // quota set to a directory not under under any snapshottable root. + @Test + public void testRenameAcrossDirWithSnapshotableSrc() throws Exception { + // snapshottable directory + String dirr = "/dir"; + Path rootDir = new Path(dirr); + hdfs.mkdirs(rootDir); + hdfs.allowSnapshot(rootDir); + + // set quota for source directory + Path dir2 = new Path(rootDir, "dir2"); + Path fil1 = new Path(dir2, "file1"); + hdfs.mkdirs(dir2); + hdfs.setQuota(dir2, 3, 0); + hdfs.create(fil1); + Path file2 = new Path(dir2, "file2"); + hdfs.rename(fil1, file2); + Path fil3 = new Path(dir2, "file3"); + hdfs.create(fil3); + + hdfs.createSnapshot(rootDir, "snap1"); + + // destination directory not under any snapshot + String dirr1 = "/dir1"; + Path dir1 = new Path(dirr1); + Path dir1fil1 = new Path(dir1, "file1"); + hdfs.mkdirs(dir1); + hdfs.create(dir1fil1); + Path dir1fil2 = new Path(dir1, "file2"); + hdfs.rename(dir1fil1, dir1fil2); + + Path filex = new Path(dir2, "filex"); + // create a file after exceeding namespace quota on source + LambdaTestUtils.intercept(NSQuotaExceededException.class, + "The NameSpace quota (directories and files) of " + + "directory /dir/dir2 is exceeded", + () -> hdfs.create(filex)); + + // Rename across directories source dir under snapshot with quota set and + // destination directory not under any snapshot + assertTrue(hdfs.rename(fil3, dir1)); + } + }