/*
* 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.hbase;
import static org.junit.Assert.*;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.net.URI;
import java.util.UUID;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
import org.apache.hadoop.hbase.util.FSUtils;
import org.apache.hadoop.hbase.util.ManualEnvironmentEdge;
import org.apache.hadoop.util.Progressable;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
@Category(MediumTests.class)
public class TestHBaseFileSystem {
public static final Log LOG = LogFactory.getLog(TestHBaseFileSystem.class);
private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
private static Configuration conf;
@BeforeClass
public static void setUpBeforeClass() throws Exception {
conf = TEST_UTIL.getConfiguration();
conf.setBoolean("dfs.support.append", true);
// The below config supported by 0.20-append and CDH3b2
conf.setInt("dfs.client.block.recovery.retries", 2);
TEST_UTIL.startMiniDFSCluster(3);
Path hbaseRootDir =
TEST_UTIL.getDFSCluster().getFileSystem().makeQualified(new Path("/hbase"));
LOG.info("hbase.rootdir=" + hbaseRootDir);
conf.set(HConstants.HBASE_DIR, hbaseRootDir.toString());
conf.setInt("hdfs.client.retries.number", 10);
HBaseFileSystem.setRetryCounts(conf);
}
@Test
public void testNonIdempotentOpsWithRetries() throws IOException {
LOG.info("testNonIdempotentOpsWithRetries");
Path rootDir = new Path(TestHBaseFileSystem.conf.get(HConstants.HBASE_DIR));
FileSystem fs = TEST_UTIL.getTestFileSystem();
// Create a Region
assertTrue(HBaseFileSystem.createPathOnFileSystem(fs, rootDir,
true) != null);
boolean result = HBaseFileSystem.makeDirOnFileSystem(new MockFileSystemForCreate(),
new Path("/a"));
assertTrue("Couldn't create the directory", result);
try {
HBaseFileSystem.createPathOnFileSystem(new MockFileSystemForCreate(),
new Path("/A"), false);
assertTrue(false);// control should not come here.
} catch (Exception e) {
LOG.info(e);
}
result = HBaseFileSystem.renameDirForFileSystem(new MockFileSystem(), new Path("/a"),
new Path("/b"));
assertTrue("Couldn't rename the directory", result);
result = HBaseFileSystem.deleteDirFromFileSystem(new MockFileSystem(),
new Path("/a"));
assertTrue("Couldn't delete the directory", result);
fs.delete(rootDir, true);
}
@Test
public void testRenameAndSetModifyTime() throws Exception {
assertTrue(FSUtils.isHDFS(conf));
FileSystem fs = FileSystem.get(conf);
Path testDir = TEST_UTIL.getDataTestDir("testArchiveFile");
String file = UUID.randomUUID().toString();
Path p = new Path(testDir, file);
FSDataOutputStream out = fs.create(p);
out.close();
assertTrue("The created file should be present", FSUtils.isExists(fs, p));
long expect = System.currentTimeMillis() + 1000;
assertFalse(expect == fs.getFileStatus(p).getModificationTime());
ManualEnvironmentEdge mockEnv = new ManualEnvironmentEdge();
mockEnv.setValue(expect);
EnvironmentEdgeManager.injectEdge(mockEnv);
String dstFile = UUID.randomUUID().toString();
Path dst = new Path(testDir , dstFile);
assertTrue(HBaseFileSystem.renameAndSetModifyTime(fs, p, dst));
assertFalse("The moved file should not be present", FSUtils.isExists(fs,
p));
assertTrue("The dst file should be present", FSUtils.isExists(fs, dst));
assertEquals(expect, fs.getFileStatus(dst).getModificationTime());
}
static class MockFileSystemForCreate extends MockFileSystem {
@Override
public boolean exists(Path path) {
if ("/A".equals(path.toString())) return true;
return false;
}
}
/**
* a mock fs which throws exception for first 3 times, and then process the call (returns the
* excepted result).
*/
static class MockFileSystem extends FileSystem {
int retryCount;
final static int successRetryCount = 3;
public MockFileSystem() {
retryCount = 0;
}
@Override
public FSDataOutputStream append(Path arg0, int arg1, Progressable arg2) throws IOException {
throw new IOException("");
}
@Override
public FSDataOutputStream create(Path arg0, FsPermission arg1, boolean arg2, int arg3,
short arg4, long arg5, Progressable arg6) throws IOException {
LOG.debug("Create, " + retryCount);
if (retryCount++ < successRetryCount) throw new IOException("Something bad happen");
return null;
}
@Override
public boolean delete(Path arg0) throws IOException {
if (retryCount++ < successRetryCount) throw new IOException("Something bad happen");
return true;
}
@Override
public boolean delete(Path arg0, boolean arg1) throws IOException {
if (retryCount++ < successRetryCount) throw new IOException("Something bad happen");
return true;
}
@Override
public FileStatus getFileStatus(Path arg0) throws IOException {
FileStatus fs = new FileStatus();
return fs;
}
@Override
public boolean exists(Path path) {
return true;
}
@Override
public URI getUri() {
throw new RuntimeException("Something bad happen");
}
@Override
public Path getWorkingDirectory() {
throw new RuntimeException("Something bad happen");
}
@Override
public FileStatus[] listStatus(Path arg0) throws IOException {
throw new IOException("Something bad happen");
}
@Override
public boolean mkdirs(Path arg0, FsPermission arg1) throws IOException {
LOG.debug("mkdirs, " + retryCount);
if (retryCount++ < successRetryCount) throw new IOException("Something bad happen");
return true;
}
@Override
public FSDataInputStream open(Path arg0, int arg1) throws IOException {
throw new IOException("Something bad happen");
}
@Override
public boolean rename(Path arg0, Path arg1) throws IOException {
LOG.debug("rename, " + retryCount);
if (retryCount++ < successRetryCount) throw new IOException("Something bad happen");
return true;
}
@Override
public void setWorkingDirectory(Path arg0) {
throw new RuntimeException("Something bad happen");
}
}
}