/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hdfs;
import java.io.OutputStream;
import java.security.PrivilegedExceptionAction;
import junit.framework.TestCase;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.ContentSummary;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hdfs.protocol.DSQuotaExceededException;
import org.apache.hadoop.hdfs.protocol.FSConstants;
import org.apache.hadoop.hdfs.protocol.NSQuotaExceededException;
import org.apache.hadoop.hdfs.protocol.QuotaExceededException;
import org.apache.hadoop.hdfs.tools.DFSAdmin;
import org.apache.hadoop.hdfs.web.WebHdfsFileSystem;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.security.UserGroupInformation;
/** A class for testing quota-related commands */
public class TestQuota extends TestCase {
private void runCommand(DFSAdmin admin, boolean expectError, String... args)
throws Exception {
runCommand(admin, args, expectError);
}
private void runCommand(DFSAdmin admin, String args[], boolean expectEror)
throws Exception {
int val = admin.run(args);
if (expectEror) {
assertEquals(val, -1);
} else {
assertTrue(val>=0);
}
}
/** Test quota related commands:
* setQuota, clrQuota, setSpaceQuota, clrSpaceQuota, and count
*/
public void testQuotaCommands() throws Exception {
final Configuration conf = new Configuration();
// set a smaller block size so that we can test with smaller
// Space quotas
final int DEFAULT_BLOCK_SIZE = 512;
conf.setLong("dfs.block.size", DEFAULT_BLOCK_SIZE);
conf.setBoolean("dfs.support.broken.append", true);
final MiniDFSCluster cluster = new MiniDFSCluster(conf, 2, true, null);
final FileSystem fs = cluster.getFileSystem();
assertTrue("Not a HDFS: "+fs.getUri(),
fs instanceof DistributedFileSystem);
final DistributedFileSystem dfs = (DistributedFileSystem)fs;
DFSAdmin admin = new DFSAdmin(conf);
try {
final int fileLen = 1024;
final short replication = 5;
final long spaceQuota = fileLen * replication * 15 / 8;
// 1: create a directory /test and set its quota to be 3
final Path parent = new Path("/test");
assertTrue(dfs.mkdirs(parent));
String[] args = new String[]{"-setQuota", "3", parent.toString()};
runCommand(admin, args, false);
//try setting space quota with a 'binary prefix'
runCommand(admin, false, "-setSpaceQuota", "2t", parent.toString());
assertEquals(2L<<40, dfs.getContentSummary(parent).getSpaceQuota());
// set diskspace quota to 10000
runCommand(admin, false, "-setSpaceQuota",
Long.toString(spaceQuota), parent.toString());
// 2: create directory /test/data0
final Path childDir0 = new Path(parent, "data0");
assertTrue(dfs.mkdirs(childDir0));
// 3: create a file /test/datafile0
final Path childFile0 = new Path(parent, "datafile0");
DFSTestUtil.createFile(fs, childFile0, fileLen, replication, 0);
// 4: count -q /test
ContentSummary c = dfs.getContentSummary(parent);
assertEquals(c.getFileCount()+c.getDirectoryCount(), 3);
assertEquals(c.getQuota(), 3);
assertEquals(c.getSpaceConsumed(), fileLen*replication);
assertEquals(c.getSpaceQuota(), spaceQuota);
// 5: count -q /test/data0
c = dfs.getContentSummary(childDir0);
assertEquals(c.getFileCount()+c.getDirectoryCount(), 1);
assertEquals(c.getQuota(), -1);
// check disk space consumed
c = dfs.getContentSummary(parent);
assertEquals(c.getSpaceConsumed(), fileLen*replication);
// 6: create a directory /test/data1
final Path childDir1 = new Path(parent, "data1");
boolean hasException = false;
try {
assertFalse(dfs.mkdirs(childDir1));
} catch (NSQuotaExceededException e) {
hasException = true;
}
assertTrue(hasException);
OutputStream fout;
// 7: create a file /test/datafile1
final Path childFile1 = new Path(parent, "datafile1");
hasException = false;
try {
fout = dfs.create(childFile1);
} catch (NSQuotaExceededException e) {
hasException = true;
}
assertTrue(hasException);
// 8: clear quota /test
runCommand(admin, new String[]{"-clrQuota", parent.toString()}, false);
c = dfs.getContentSummary(parent);
assertEquals(c.getQuota(), -1);
assertEquals(c.getSpaceQuota(), spaceQuota);
// 9: clear quota /test/data0
runCommand(admin, new String[]{"-clrQuota", childDir0.toString()}, false);
c = dfs.getContentSummary(childDir0);
assertEquals(c.getQuota(), -1);
// 10: create a file /test/datafile1
fout = dfs.create(childFile1, replication);
// 10.s: but writing fileLen bytes should result in an quota exception
hasException = false;
try {
fout.write(new byte[fileLen]);
fout.close();
} catch (DSQuotaExceededException e) {
hasException = true;
IOUtils.closeStream(fout);
}
assertTrue(hasException);
//delete the file
dfs.delete(childFile1, false);
// 9.s: clear diskspace quota
runCommand(admin, false, "-clrSpaceQuota", parent.toString());
c = dfs.getContentSummary(parent);
assertEquals(c.getQuota(), -1);
assertEquals(c.getSpaceQuota(), -1);
// now creating childFile1 should succeed
DFSTestUtil.createFile(dfs, childFile1, fileLen, replication, 0);
// 11: set the quota of /test to be 1
// HADOOP-5872 - we can set quota even if it is immediately violated
args = new String[]{"-setQuota", "1", parent.toString()};
runCommand(admin, args, false);
runCommand(admin, false, "-setSpaceQuota", // for space quota
Integer.toString(fileLen), args[2]);
// 12: set the quota of /test/data0 to be 1
args = new String[]{"-setQuota", "1", childDir0.toString()};
runCommand(admin, args, false);
// 13: not able create a directory under data0
hasException = false;
try {
assertFalse(dfs.mkdirs(new Path(childDir0, "in")));
} catch (NSQuotaExceededException e) {
hasException = true;
}
assertTrue(hasException);
c = dfs.getContentSummary(childDir0);
assertEquals(c.getDirectoryCount()+c.getFileCount(), 1);
assertEquals(c.getQuota(), 1);
// 14a: set quota on a non-existent directory
Path nonExistentPath = new Path("/test1");
assertFalse(dfs.exists(nonExistentPath));
args = new String[]{"-setQuota", "1", nonExistentPath.toString()};
runCommand(admin, args, true);
runCommand(admin, true, "-setSpaceQuota", "1g", // for space quota
nonExistentPath.toString());
// 14b: set quota on a file
assertTrue(dfs.isFile(childFile0));
args[1] = childFile0.toString();
runCommand(admin, args, true);
// same for space quota
runCommand(admin, true, "-setSpaceQuota", "1t", args[1]);
// 15a: clear quota on a file
args[0] = "-clrQuota";
runCommand(admin, args, true);
runCommand(admin, true, "-clrSpaceQuota", args[1]);
// 15b: clear quota on a non-existent directory
args[1] = nonExistentPath.toString();
runCommand(admin, args, true);
runCommand(admin, true, "-clrSpaceQuota", args[1]);
// 16a: set the quota of /test to be 0
args = new String[]{"-setQuota", "0", parent.toString()};
runCommand(admin, args, true);
runCommand(admin, true, "-setSpaceQuota", "0", args[2]);
// 16b: set the quota of /test to be -1
args[1] = "-1";
runCommand(admin, args, true);
runCommand(admin, true, "-setSpaceQuota", args[1], args[2]);
// 16c: set the quota of /test to be Long.MAX_VALUE+1
args[1] = String.valueOf(Long.MAX_VALUE+1L);
runCommand(admin, args, true);
runCommand(admin, true, "-setSpaceQuota", args[1], args[2]);
// 16d: set the quota of /test to be a non integer
args[1] = "33aa1.5";
runCommand(admin, args, true);
runCommand(admin, true, "-setSpaceQuota", args[1], args[2]);
// 16e: set space quota with a value larger than Long.MAX_VALUE
runCommand(admin, true, "-setSpaceQuota",
(Long.MAX_VALUE/1024/1024 + 1024) + "m", args[2]);
// 17: setQuota by a non-administrator
final String username = "userxx";
UserGroupInformation ugi =
UserGroupInformation.createUserForTesting(username,
new String[]{"groupyy"});
final String[] args2 = args.clone(); // need final ref for doAs block
ugi.doAs(new PrivilegedExceptionAction<Object>() {
@Override
public Object run() throws Exception {
assertEquals("Not running as new user", username,
UserGroupInformation.getCurrentUser().getShortUserName());
DFSAdmin userAdmin = new DFSAdmin(conf);
args2[1] = "100";
runCommand(userAdmin, args2, true);
runCommand(userAdmin, true, "-setSpaceQuota", "1g", args2[2]);
// 18: clrQuota by a non-administrator
String[] args3 = new String[] {"-clrQuota", parent.toString()};
runCommand(userAdmin, args3, true);
runCommand(userAdmin, true, "-clrSpaceQuota", args3[1]);
return null;
}
});
// 19: clrQuota on the root directory ("/") should fail
runCommand(admin, true, "-clrQuota", "/");
// 20: setQuota on the root directory ("/") should succeed
runCommand(admin, false, "-setQuota", "1000000", "/");
runCommand(admin, true, "-clrQuota", "/");
runCommand(admin, false, "-clrSpaceQuota", "/");
runCommand(admin, new String[]{"-clrQuota", parent.toString()}, false);
runCommand(admin, false, "-clrSpaceQuota", parent.toString());
// 2: create directory /test/data2
final Path childDir2 = new Path(parent, "data2");
assertTrue(dfs.mkdirs(childDir2));
final Path childFile2 = new Path(childDir2, "datafile2");
final Path childFile3 = new Path(childDir2, "datafile3");
final long spaceQuota2 = DEFAULT_BLOCK_SIZE * replication;
final long fileLen2 = DEFAULT_BLOCK_SIZE;
// set space quota to a real low value
runCommand(admin, false, "-setSpaceQuota", Long.toString(spaceQuota2), childDir2.toString());
// clear space quota
runCommand(admin, false, "-clrSpaceQuota", childDir2.toString());
// create a file that is greater than the size of space quota
DFSTestUtil.createFile(fs, childFile2, fileLen2, replication, 0);
// now set space quota again. This should succeed
runCommand(admin, false, "-setSpaceQuota", Long.toString(spaceQuota2), childDir2.toString());
hasException = false;
try {
DFSTestUtil.createFile(fs, childFile3, fileLen2, replication, 0);
} catch (DSQuotaExceededException e) {
hasException = true;
}
assertTrue(hasException);
// now test the same for root
final Path childFile4 = new Path("/", "datafile2");
final Path childFile5 = new Path("/", "datafile3");
runCommand(admin, true, "-clrQuota", "/");
runCommand(admin, false, "-clrSpaceQuota", "/");
// set space quota to a real low value
runCommand(admin, false, "-setSpaceQuota", Long.toString(spaceQuota2), "/");
runCommand(admin, false, "-clrSpaceQuota", "/");
DFSTestUtil.createFile(fs, childFile4, fileLen2, replication, 0);
runCommand(admin, false, "-setSpaceQuota", Long.toString(spaceQuota2), "/");
hasException = false;
try {
DFSTestUtil.createFile(fs, childFile5, fileLen2, replication, 0);
} catch (DSQuotaExceededException e) {
hasException = true;
}
assertTrue(hasException);
} finally {
cluster.shutdown();
}
}
/** Test commands that change the size of the name space:
* mkdirs, rename, and delete */
public void testNamespaceCommands() throws Exception {
final Configuration conf = new Configuration();
final MiniDFSCluster cluster = new MiniDFSCluster(conf, 2, true, null);
final FileSystem fs = cluster.getFileSystem();
assertTrue("Not a HDFS: "+fs.getUri(),
fs instanceof DistributedFileSystem);
final DistributedFileSystem dfs = (DistributedFileSystem)fs;
try {
// 1: create directory /nqdir0/qdir1/qdir20/nqdir30
assertTrue(dfs.mkdirs(new Path("/nqdir0/qdir1/qdir20/nqdir30")));
// 2: set the quota of /nqdir0/qdir1 to be 6
final Path quotaDir1 = new Path("/nqdir0/qdir1");
dfs.setQuota(quotaDir1, 6, FSConstants.QUOTA_DONT_SET);
ContentSummary c = dfs.getContentSummary(quotaDir1);
assertEquals(c.getDirectoryCount(), 3);
assertEquals(c.getQuota(), 6);
// 3: set the quota of /nqdir0/qdir1/qdir20 to be 7
final Path quotaDir2 = new Path("/nqdir0/qdir1/qdir20");
dfs.setQuota(quotaDir2, 7, FSConstants.QUOTA_DONT_SET);
c = dfs.getContentSummary(quotaDir2);
assertEquals(c.getDirectoryCount(), 2);
assertEquals(c.getQuota(), 7);
// 4: Create directory /nqdir0/qdir1/qdir21 and set its quota to 2
final Path quotaDir3 = new Path("/nqdir0/qdir1/qdir21");
assertTrue(dfs.mkdirs(quotaDir3));
dfs.setQuota(quotaDir3, 2, FSConstants.QUOTA_DONT_SET);
c = dfs.getContentSummary(quotaDir3);
assertEquals(c.getDirectoryCount(), 1);
assertEquals(c.getQuota(), 2);
// 5: Create directory /nqdir0/qdir1/qdir21/nqdir32
Path tempPath = new Path(quotaDir3, "nqdir32");
assertTrue(dfs.mkdirs(tempPath));
c = dfs.getContentSummary(quotaDir3);
assertEquals(c.getDirectoryCount(), 2);
assertEquals(c.getQuota(), 2);
// 6: Create directory /nqdir0/qdir1/qdir21/nqdir33
tempPath = new Path(quotaDir3, "nqdir33");
boolean hasException = false;
try {
assertFalse(dfs.mkdirs(tempPath));
} catch (NSQuotaExceededException e) {
hasException = true;
}
assertTrue(hasException);
c = dfs.getContentSummary(quotaDir3);
assertEquals(c.getDirectoryCount(), 2);
assertEquals(c.getQuota(), 2);
// 7: Create directory /nqdir0/qdir1/qdir20/nqdir31
tempPath = new Path(quotaDir2, "nqdir31");
assertTrue(dfs.mkdirs(tempPath));
c = dfs.getContentSummary(quotaDir2);
assertEquals(c.getDirectoryCount(), 3);
assertEquals(c.getQuota(), 7);
c = dfs.getContentSummary(quotaDir1);
assertEquals(c.getDirectoryCount(), 6);
assertEquals(c.getQuota(), 6);
// 8: Create directory /nqdir0/qdir1/qdir20/nqdir33
tempPath = new Path(quotaDir2, "nqdir33");
hasException = false;
try {
assertFalse(dfs.mkdirs(tempPath));
} catch (NSQuotaExceededException e) {
hasException = true;
}
assertTrue(hasException);
// 9: Move /nqdir0/qdir1/qdir21/nqdir32 /nqdir0/qdir1/qdir20/nqdir30
tempPath = new Path(quotaDir2, "nqdir30");
dfs.rename(new Path(quotaDir3, "nqdir32"), tempPath);
c = dfs.getContentSummary(quotaDir2);
assertEquals(c.getDirectoryCount(), 4);
assertEquals(c.getQuota(), 7);
c = dfs.getContentSummary(quotaDir1);
assertEquals(c.getDirectoryCount(), 6);
assertEquals(c.getQuota(), 6);
// 10: Move /nqdir0/qdir1/qdir20/nqdir30 to /nqdir0/qdir1/qdir21
hasException = false;
try {
assertFalse(dfs.rename(tempPath, quotaDir3));
} catch (NSQuotaExceededException e) {
hasException = true;
}
assertTrue(hasException);
assertTrue(dfs.exists(tempPath));
assertFalse(dfs.exists(new Path(quotaDir3, "nqdir30")));
// 10.a: Rename /nqdir0/qdir1/qdir20/nqdir30 to /nqdir0/qdir1/qdir21/nqdir32
hasException = false;
try {
assertFalse(dfs.rename(tempPath, new Path(quotaDir3, "nqdir32")));
} catch (NSQuotaExceededException e) {
hasException = true;
}
assertTrue(hasException);
assertTrue(dfs.exists(tempPath));
assertFalse(dfs.exists(new Path(quotaDir3, "nqdir32")));
// 11: Move /nqdir0/qdir1/qdir20/nqdir30 to /nqdir0
assertTrue(dfs.rename(tempPath, new Path("/nqdir0")));
c = dfs.getContentSummary(quotaDir2);
assertEquals(c.getDirectoryCount(), 2);
assertEquals(c.getQuota(), 7);
c = dfs.getContentSummary(quotaDir1);
assertEquals(c.getDirectoryCount(), 4);
assertEquals(c.getQuota(), 6);
// 12: Create directory /nqdir0/nqdir30/nqdir33
assertTrue(dfs.mkdirs(new Path("/nqdir0/nqdir30/nqdir33")));
// 13: Move /nqdir0/nqdir30 /nqdir0/qdir1/qdir20/qdir30
hasException = false;
try {
assertFalse(dfs.rename(new Path("/nqdir0/nqdir30"), tempPath));
} catch (NSQuotaExceededException e) {
hasException = true;
}
assertTrue(hasException);
// 14: Move /nqdir0/qdir1/qdir21 /nqdir0/qdir1/qdir20
assertTrue(dfs.rename(quotaDir3, quotaDir2));
c = dfs.getContentSummary(quotaDir1);
assertEquals(c.getDirectoryCount(), 4);
assertEquals(c.getQuota(), 6);
c = dfs.getContentSummary(quotaDir2);
assertEquals(c.getDirectoryCount(), 3);
assertEquals(c.getQuota(), 7);
tempPath = new Path(quotaDir2, "qdir21");
c = dfs.getContentSummary(tempPath);
assertEquals(c.getDirectoryCount(), 1);
assertEquals(c.getQuota(), 2);
// 15: Delete /nqdir0/qdir1/qdir20/qdir21
dfs.delete(tempPath, true);
c = dfs.getContentSummary(quotaDir2);
assertEquals(c.getDirectoryCount(), 2);
assertEquals(c.getQuota(), 7);
c = dfs.getContentSummary(quotaDir1);
assertEquals(c.getDirectoryCount(), 3);
assertEquals(c.getQuota(), 6);
// 16: Move /nqdir0/qdir30 /nqdir0/qdir1/qdir20
assertTrue(dfs.rename(new Path("/nqdir0/nqdir30"), quotaDir2));
c = dfs.getContentSummary(quotaDir2);
assertEquals(c.getDirectoryCount(), 5);
assertEquals(c.getQuota(), 7);
c = dfs.getContentSummary(quotaDir1);
assertEquals(c.getDirectoryCount(), 6);
assertEquals(c.getQuota(), 6);
} finally {
cluster.shutdown();
}
}
/**
* Test HDFS operations that change disk space consumed by a directory tree.
* namely create, rename, delete, append, and setReplication.
*
* This is based on testNamespaceCommands() above.
*/
public void testSpaceCommands() throws Exception {
final Configuration conf = new Configuration();
// set a smaller block size so that we can test with smaller
// diskspace quotas
conf.set("dfs.block.size", "512");
conf.setBoolean("dfs.support.broken.append", true);
final MiniDFSCluster cluster = new MiniDFSCluster(conf, 2, true, null);
final FileSystem fs = cluster.getFileSystem();
assertTrue("Not a HDFS: "+fs.getUri(),
fs instanceof DistributedFileSystem);
final DistributedFileSystem dfs = (DistributedFileSystem)fs;
try {
int fileLen = 1024;
short replication = 3;
int fileSpace = fileLen * replication;
// create directory /nqdir0/qdir1/qdir20/nqdir30
assertTrue(dfs.mkdirs(new Path("/nqdir0/qdir1/qdir20/nqdir30")));
// set the quota of /nqdir0/qdir1 to 4 * fileSpace
final Path quotaDir1 = new Path("/nqdir0/qdir1");
dfs.setQuota(quotaDir1, FSConstants.QUOTA_DONT_SET, 4 * fileSpace);
ContentSummary c = dfs.getContentSummary(quotaDir1);
assertEquals(c.getSpaceQuota(), 4 * fileSpace);
// set the quota of /nqdir0/qdir1/qdir20 to 6 * fileSpace
final Path quotaDir20 = new Path("/nqdir0/qdir1/qdir20");
dfs.setQuota(quotaDir20, FSConstants.QUOTA_DONT_SET, 6 * fileSpace);
c = dfs.getContentSummary(quotaDir20);
assertEquals(c.getSpaceQuota(), 6 * fileSpace);
// Create /nqdir0/qdir1/qdir21 and set its space quota to 2 * fileSpace
final Path quotaDir21 = new Path("/nqdir0/qdir1/qdir21");
assertTrue(dfs.mkdirs(quotaDir21));
dfs.setQuota(quotaDir21, FSConstants.QUOTA_DONT_SET, 2 * fileSpace);
c = dfs.getContentSummary(quotaDir21);
assertEquals(c.getSpaceQuota(), 2 * fileSpace);
// 5: Create directory /nqdir0/qdir1/qdir21/nqdir32
Path tempPath = new Path(quotaDir21, "nqdir32");
assertTrue(dfs.mkdirs(tempPath));
// create a file under nqdir32/fileDir
DFSTestUtil.createFile(dfs, new Path(tempPath, "fileDir/file1"), fileLen,
replication, 0);
c = dfs.getContentSummary(quotaDir21);
assertEquals(c.getSpaceConsumed(), fileSpace);
// Create a larger file /nqdir0/qdir1/qdir21/nqdir33/
boolean hasException = false;
try {
DFSTestUtil.createFile(dfs, new Path(quotaDir21, "nqdir33/file2"),
2*fileLen, replication, 0);
} catch (DSQuotaExceededException e) {
hasException = true;
}
assertTrue(hasException);
// delete nqdir33
assertTrue(dfs.delete(new Path(quotaDir21, "nqdir33"), true));
c = dfs.getContentSummary(quotaDir21);
assertEquals(c.getSpaceConsumed(), fileSpace);
assertEquals(c.getSpaceQuota(), 2*fileSpace);
// Verify space before the move:
c = dfs.getContentSummary(quotaDir20);
assertEquals(c.getSpaceConsumed(), 0);
// Move /nqdir0/qdir1/qdir21/nqdir32 /nqdir0/qdir1/qdir20/nqdir30
Path dstPath = new Path(quotaDir20, "nqdir30");
Path srcPath = new Path(quotaDir21, "nqdir32");
assertTrue(dfs.rename(srcPath, dstPath));
// verify space after the move
c = dfs.getContentSummary(quotaDir20);
assertEquals(c.getSpaceConsumed(), fileSpace);
// verify space for its parent
c = dfs.getContentSummary(quotaDir1);
assertEquals(c.getSpaceConsumed(), fileSpace);
// verify space for source for the move
c = dfs.getContentSummary(quotaDir21);
assertEquals(c.getSpaceConsumed(), 0);
final Path file2 = new Path(dstPath, "fileDir/file2");
int file2Len = 2 * fileLen;
// create a larger file under /nqdir0/qdir1/qdir20/nqdir30
DFSTestUtil.createFile(dfs, file2, file2Len, replication, 0);
c = dfs.getContentSummary(quotaDir20);
assertEquals(c.getSpaceConsumed(), 3 * fileSpace);
c = dfs.getContentSummary(quotaDir21);
assertEquals(c.getSpaceConsumed(), 0);
// Reverse: Move /nqdir0/qdir1/qdir20/nqdir30 to /nqdir0/qdir1/qdir21/
hasException = false;
try {
assertFalse(dfs.rename(dstPath, srcPath));
} catch (DSQuotaExceededException e) {
hasException = true;
}
assertTrue(hasException);
// make sure no intermediate directories left by failed rename
assertFalse(dfs.exists(srcPath));
// directory should exist
assertTrue(dfs.exists(dstPath));
// verify space after the failed move
c = dfs.getContentSummary(quotaDir20);
assertEquals(c.getSpaceConsumed(), 3 * fileSpace);
c = dfs.getContentSummary(quotaDir21);
assertEquals(c.getSpaceConsumed(), 0);
// Test Append :
// verify space quota
c = dfs.getContentSummary(quotaDir1);
assertEquals(c.getSpaceQuota(), 4 * fileSpace);
// verify space before append;
c = dfs.getContentSummary(dstPath);
assertEquals(c.getSpaceConsumed(), 3 * fileSpace);
OutputStream out = dfs.append(file2);
// appending 1 fileLen should succeed
out.write(new byte[fileLen]);
out.close();
file2Len += fileLen; // after append
// verify space after append;
c = dfs.getContentSummary(dstPath);
assertEquals(c.getSpaceConsumed(), 4 * fileSpace);
// now increase the quota for quotaDir1
dfs.setQuota(quotaDir1, FSConstants.QUOTA_DONT_SET, 5 * fileSpace);
// Now, appending more than 1 fileLen should result in an error
out = dfs.append(file2);
hasException = false;
try {
out.write(new byte[fileLen + 1024]);
out.flush();
out.close();
} catch (DSQuotaExceededException e) {
hasException = true;
IOUtils.closeStream(out);
}
assertTrue(hasException);
file2Len += fileLen; // after partial append
// verify space after partial append
c = dfs.getContentSummary(dstPath);
assertEquals(c.getSpaceConsumed(), 5 * fileSpace);
// Test set replication :
// first reduce the replication
dfs.setReplication(file2, (short)(replication-1));
// verify that space is reduced by file2Len
c = dfs.getContentSummary(dstPath);
assertEquals(c.getSpaceConsumed(), 5 * fileSpace - file2Len);
// now try to increase the replication and and expect an error.
hasException = false;
try {
dfs.setReplication(file2, (short)(replication+1));
} catch (DSQuotaExceededException e) {
hasException = true;
}
assertTrue(hasException);
// verify space consumed remains unchanged.
c = dfs.getContentSummary(dstPath);
assertEquals(c.getSpaceConsumed(), 5 * fileSpace - file2Len);
// now increase the quota for quotaDir1 and quotaDir20
dfs.setQuota(quotaDir1, FSConstants.QUOTA_DONT_SET, 10 * fileSpace);
dfs.setQuota(quotaDir20, FSConstants.QUOTA_DONT_SET, 10 * fileSpace);
// then increasing replication should be ok.
dfs.setReplication(file2, (short)(replication+1));
// verify increase in space
c = dfs.getContentSummary(dstPath);
assertEquals(c.getSpaceConsumed(), 5 * fileSpace + file2Len);
// Test HDFS-2053 :
// Create directory /hdfs-2053
final Path quotaDir2053 = new Path("/hdfs-2053");
assertTrue(dfs.mkdirs(quotaDir2053));
// Create subdirectories /hdfs-2053/{A,B,C}
final Path quotaDir2053_A = new Path(quotaDir2053, "A");
assertTrue(dfs.mkdirs(quotaDir2053_A));
final Path quotaDir2053_B = new Path(quotaDir2053, "B");
assertTrue(dfs.mkdirs(quotaDir2053_B));
final Path quotaDir2053_C = new Path(quotaDir2053, "C");
assertTrue(dfs.mkdirs(quotaDir2053_C));
// Factors to vary the sizes of test files created in each subdir.
// The actual factors are not really important but they allow us to create
// identifiable file sizes per subdir, which helps during debugging.
int sizeFactorA = 1;
int sizeFactorB = 2;
int sizeFactorC = 4;
// Set space quota for subdirectory C
dfs.setQuota(quotaDir2053_C, FSConstants.QUOTA_DONT_SET,
(sizeFactorC + 1) * fileSpace);
c = dfs.getContentSummary(quotaDir2053_C);
assertEquals(c.getSpaceQuota(), (sizeFactorC + 1) * fileSpace);
// Create a file under subdirectory A
DFSTestUtil.createFile(dfs, new Path(quotaDir2053_A, "fileA"),
sizeFactorA * fileLen, replication, 0);
c = dfs.getContentSummary(quotaDir2053_A);
assertEquals(c.getSpaceConsumed(), sizeFactorA * fileSpace);
// Create a file under subdirectory B
DFSTestUtil.createFile(dfs, new Path(quotaDir2053_B, "fileB"),
sizeFactorB * fileLen, replication, 0);
c = dfs.getContentSummary(quotaDir2053_B);
assertEquals(c.getSpaceConsumed(), sizeFactorB * fileSpace);
// Create a file under subdirectory C (which has a space quota)
DFSTestUtil.createFile(dfs, new Path(quotaDir2053_C, "fileC"),
sizeFactorC * fileLen, replication, 0);
c = dfs.getContentSummary(quotaDir2053_C);
assertEquals(c.getSpaceConsumed(), sizeFactorC * fileSpace);
// Check space consumed for /hdfs-2053
c = dfs.getContentSummary(quotaDir2053);
assertEquals(c.getSpaceConsumed(),
(sizeFactorA + sizeFactorB + sizeFactorC) * fileSpace);
} finally {
cluster.shutdown();
}
}
private static void checkContentSummary(final ContentSummary expected,
final ContentSummary computed) {
assertEquals(expected.toString(), computed.toString());
}
/**
* Violate a space quota using files of size < 1 block. Test that
* block allocation conservatively assumes that for quota checking
* the entire space of the block is used.
*/
public void testBlockAllocationAdjustUsageConservatively() throws Exception {
Configuration conf = new Configuration();
final int BLOCK_SIZE = 6 * 1024;
conf.set("dfs.block.size", Integer.toString(BLOCK_SIZE));
conf.setBoolean(DFSConfigKeys.DFS_WEBHDFS_ENABLED_KEY, true);
MiniDFSCluster cluster = new MiniDFSCluster(conf, 3, true, null);
cluster.waitActive();
FileSystem fs = cluster.getFileSystem();
DFSAdmin admin = new DFSAdmin(conf);
final String nnAddr = conf.get("dfs.http.address");
final String webhdfsuri = WebHdfsFileSystem.SCHEME + "://" + nnAddr;
System.out.println("webhdfsuri=" + webhdfsuri);
final FileSystem webhdfs = new Path(webhdfsuri).getFileSystem(conf);
try {
Path dir = new Path("/test");
Path file1 = new Path("/test/test1");
Path file2 = new Path("/test/test2");
boolean exceededQuota = false;
final int QUOTA_SIZE = 3 * BLOCK_SIZE; // total usage including repl.
final int FILE_SIZE = BLOCK_SIZE / 2;
ContentSummary c;
// Create the directory and set the quota
assertTrue(fs.mkdirs(dir));
runCommand(admin, false, "-setSpaceQuota", Integer.toString(QUOTA_SIZE),
dir.toString());
// Creating one file should use half the quota
DFSTestUtil.createFile(fs, file1, FILE_SIZE, (short)3, 1L);
DFSTestUtil.waitReplication(fs, file1, (short)3);
c = fs.getContentSummary(dir);
checkContentSummary(c, webhdfs.getContentSummary(dir));
assertEquals("Quota is half consumed", QUOTA_SIZE / 2,
c.getSpaceConsumed());
// We can not create the 2nd file because even though the total
// spaced used by two files (2 * 3 * 512/2) would fit within the
// quota (3 * 512) when a block for a file is created the space
// used is adjusted conservatively (3 * block size, ie assumes a
// full block is written) which will violate the quota (3 *
// block size) since we've already used half the quota for the
// first file.
try {
DFSTestUtil.createFile(fs, file2, FILE_SIZE, (short)3, 1L);
} catch (QuotaExceededException e) {
exceededQuota = true;
}
assertTrue("Quota not exceeded", exceededQuota);
} finally {
cluster.shutdown();
}
}
/**
* Like the previous test but create many files. This covers bugs
* where the quota adjustment is incorrect but it takes many files
* to accrue a big enough accounting error to violate the quota.
*/
public void testMultipleFilesSmallerThanOneBlock() throws Exception {
Configuration conf = new Configuration();
final int BLOCK_SIZE = 6 * 1024;
conf.set("dfs.block.size", Integer.toString(BLOCK_SIZE));
conf.setBoolean(DFSConfigKeys.DFS_WEBHDFS_ENABLED_KEY, true);
MiniDFSCluster cluster = new MiniDFSCluster(conf, 3, true, null);
cluster.waitActive();
FileSystem fs = cluster.getFileSystem();
DFSAdmin admin = new DFSAdmin(conf);
final String nnAddr = conf.get("dfs.http.address");
final String webhdfsuri = WebHdfsFileSystem.SCHEME + "://" + nnAddr;
System.out.println("webhdfsuri=" + webhdfsuri);
final FileSystem webhdfs = new Path(webhdfsuri).getFileSystem(conf);
try {
Path dir = new Path("/test");
boolean exceededQuota = false;
ContentSummary c;
// 1kb file
// 6kb block
// 192kb quota
final int FILE_SIZE = 1024;
final int QUOTA_SIZE = 32 * (int)fs.getDefaultBlockSize();
assertEquals(6 * 1024, fs.getDefaultBlockSize());
assertEquals(192 * 1024, QUOTA_SIZE);
// Create the dir and set the quota. We need to enable the quota before
// writing the files as setting the quota afterwards will over-write
// the cached disk space used for quota verification with the actual
// amount used as calculated by INode#spaceConsumedInTree.
assertTrue(fs.mkdirs(dir));
runCommand(admin, false, "-setSpaceQuota", Integer.toString(QUOTA_SIZE),
dir.toString());
// We can create at most 59 files because block allocation is
// conservative and initially assumes a full block is used, so we
// need to leave at least 3 * BLOCK_SIZE free space when allocating
// the last block: (58 * 3 * 1024) + (3 * 6 * 1024) = 192kb
for (int i = 0; i < 59; i++) {
Path file = new Path("/test/test" + i);
DFSTestUtil.createFile(fs, file, FILE_SIZE, (short)3, 1L);
DFSTestUtil.waitReplication(fs, file, (short)3);
}
// Should account for all 59 files (almost QUOTA_SIZE)
c = fs.getContentSummary(dir);
checkContentSummary(c, webhdfs.getContentSummary(dir));
assertEquals("Invalid space consumed",
59 * FILE_SIZE * 3,
c.getSpaceConsumed());
assertEquals("Invalid space consumed",
QUOTA_SIZE - (59 * FILE_SIZE * 3),
3 * (fs.getDefaultBlockSize() - FILE_SIZE));
// Now check that trying to create another file violates the quota
try {
Path file = new Path("/test/test59");
DFSTestUtil.createFile(fs, file, FILE_SIZE, (short) 3, 1L);
DFSTestUtil.waitReplication(fs, file, (short) 3);
} catch (QuotaExceededException e) {
exceededQuota = true;
}
assertTrue("Quota not exceeded", exceededQuota);
} finally {
cluster.shutdown();
}
}
}