/**
* 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.util;
import static org.junit.Assert.*;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Arrays;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.TableDescriptors;
import org.apache.hadoop.hbase.TableExistsException;
import org.junit.Test;
/**
* Tests for {@link FSTableDescriptors}.
*/
public class TestFSTableDescriptors {
private static final HBaseTestingUtility UTIL = new HBaseTestingUtility();
private static final Log LOG = LogFactory.getLog(TestFSTableDescriptors.class);
@Test (expected=IllegalArgumentException.class)
public void testRegexAgainstOldStyleTableInfo() {
Path p = new Path("/tmp", FSTableDescriptors.TABLEINFO_NAME);
int i = FSTableDescriptors.getTableInfoSequenceid(p);
assertEquals(0, i);
// Assert it won't eat garbage -- that it fails
p = new Path("/tmp", "abc");
FSTableDescriptors.getTableInfoSequenceid(p);
}
@Test
public void testCreateAndUpdate() throws IOException {
Path testdir = UTIL.getDataTestDir();
HTableDescriptor htd = new HTableDescriptor("testCreate");
FileSystem fs = FileSystem.get(UTIL.getConfiguration());
assertTrue(FSTableDescriptors.createTableDescriptor(fs, testdir, htd));
assertFalse(FSTableDescriptors.createTableDescriptor(fs, testdir, htd));
FileStatus [] statuses = fs.listStatus(testdir);
assertTrue(statuses.length == 1);
for (int i = 0; i < 10; i++) {
FSTableDescriptors.updateHTableDescriptor(fs, testdir, htd);
}
statuses = fs.listStatus(testdir);
assertTrue(statuses.length == 1);
Path tmpTableDir = new Path(FSUtils.getTablePath(testdir, htd.getName()), ".tmp");
statuses = fs.listStatus(tmpTableDir);
assertTrue(statuses.length == 0);
}
@Test
public void testSequenceidAdvancesOnTableInfo() throws IOException {
Path testdir = UTIL.getDataTestDir("testSequenceidAdvancesOnTableInfo");
HTableDescriptor htd = new HTableDescriptor("testSequenceidAdvancesOnTableInfo");
FileSystem fs = FileSystem.get(UTIL.getConfiguration());
Path p0 = FSTableDescriptors.updateHTableDescriptor(fs, testdir, htd);
int i0 = FSTableDescriptors.getTableInfoSequenceid(p0);
Path p1 = FSTableDescriptors.updateHTableDescriptor(fs, testdir, htd);
// Assert we cleaned up the old file.
assertTrue(!fs.exists(p0));
int i1 = FSTableDescriptors.getTableInfoSequenceid(p1);
assertTrue(i1 == i0 + 1);
Path p2 = FSTableDescriptors.updateHTableDescriptor(fs, testdir, htd);
// Assert we cleaned up the old file.
assertTrue(!fs.exists(p1));
int i2 = FSTableDescriptors.getTableInfoSequenceid(p2);
assertTrue(i2 == i1 + 1);
}
@Test
public void testFormatTableInfoSequenceId() {
Path p0 = assertWriteAndReadSequenceid(0);
// Assert p0 has format we expect.
StringBuilder sb = new StringBuilder();
for (int i = 0; i < FSTableDescriptors.WIDTH_OF_SEQUENCE_ID; i++) {
sb.append("0");
}
assertEquals(FSTableDescriptors.TABLEINFO_NAME + "." + sb.toString(),
p0.getName());
// Check a few more.
Path p2 = assertWriteAndReadSequenceid(2);
Path p10000 = assertWriteAndReadSequenceid(10000);
// Get a .tablinfo that has no sequenceid suffix.
Path p = new Path(p0.getParent(), FSTableDescriptors.TABLEINFO_NAME);
FileStatus fs = new FileStatus(0, false, 0, 0, 0, p);
FileStatus fs0 = new FileStatus(0, false, 0, 0, 0, p0);
FileStatus fs2 = new FileStatus(0, false, 0, 0, 0, p2);
FileStatus fs10000 = new FileStatus(0, false, 0, 0, 0, p10000);
FSTableDescriptors.FileStatusFileNameComparator comparator =
new FSTableDescriptors.FileStatusFileNameComparator();
assertTrue(comparator.compare(fs, fs0) > 0);
assertTrue(comparator.compare(fs0, fs2) > 0);
assertTrue(comparator.compare(fs2, fs10000) > 0);
}
private Path assertWriteAndReadSequenceid(final int i) {
Path p = FSTableDescriptors.getTableInfoFileName(new Path("/tmp"), i);
int ii = FSTableDescriptors.getTableInfoSequenceid(p);
assertEquals(i, ii);
return p;
}
@Test
public void testRemoves() throws IOException {
final String name = "testRemoves";
FileSystem fs = FileSystem.get(UTIL.getConfiguration());
// Cleanup old tests if any detrius laying around.
Path rootdir = new Path(UTIL.getDataTestDir(), name);
TableDescriptors htds = new FSTableDescriptors(fs, rootdir);
HTableDescriptor htd = new HTableDescriptor(name);
htds.add(htd);
assertNotNull(htds.remove(htd.getNameAsString()));
assertNull(htds.remove(htd.getNameAsString()));
}
@Test public void testReadingHTDFromFS() throws IOException {
final String name = "testReadingHTDFromFS";
FileSystem fs = FileSystem.get(UTIL.getConfiguration());
HTableDescriptor htd = new HTableDescriptor(name);
Path rootdir = UTIL.getDataTestDir(name);
createHTDInFS(fs, rootdir, htd);
HTableDescriptor htd2 =
FSTableDescriptors.getTableDescriptor(fs, rootdir, htd.getNameAsString());
assertTrue(htd.equals(htd2));
}
private void createHTDInFS(final FileSystem fs, Path rootdir,
final HTableDescriptor htd)
throws IOException {
FSTableDescriptors.createTableDescriptor(fs, rootdir, htd);
}
@Test public void testHTableDescriptors()
throws IOException, InterruptedException {
final String name = "testHTableDescriptors";
FileSystem fs = FileSystem.get(UTIL.getConfiguration());
// Cleanup old tests if any debris laying around.
Path rootdir = new Path(UTIL.getDataTestDir(), name);
final int count = 10;
// Write out table infos.
for (int i = 0; i < count; i++) {
HTableDescriptor htd = new HTableDescriptor(name + i);
createHTDInFS(fs, rootdir, htd);
}
FSTableDescriptors htds = new FSTableDescriptors(fs, rootdir) {
@Override
public HTableDescriptor get(byte[] tablename)
throws TableExistsException, FileNotFoundException, IOException {
LOG.info(Bytes.toString(tablename) + ", cachehits=" + this.cachehits);
return super.get(tablename);
}
};
for (int i = 0; i < count; i++) {
assertTrue(htds.get(Bytes.toBytes(name + i)) != null);
}
for (int i = 0; i < count; i++) {
assertTrue(htds.get(Bytes.toBytes(name + i)) != null);
}
// Update the table infos
for (int i = 0; i < count; i++) {
HTableDescriptor htd = new HTableDescriptor(name + i);
htd.addFamily(new HColumnDescriptor("" + i));
FSTableDescriptors.updateHTableDescriptor(fs, rootdir, htd);
}
// Wait a while so mod time we write is for sure different.
Thread.sleep(100);
for (int i = 0; i < count; i++) {
assertTrue(htds.get(Bytes.toBytes(name + i)) != null);
}
for (int i = 0; i < count; i++) {
assertTrue(htds.get(Bytes.toBytes(name + i)) != null);
}
assertEquals(count * 4, htds.invocations);
assertTrue("expected=" + (count * 2) + ", actual=" + htds.cachehits,
htds.cachehits >= (count * 2));
assertTrue(htds.get(HConstants.ROOT_TABLE_NAME) != null);
assertEquals(htds.invocations, count * 4 + 1);
assertTrue("expected=" + ((count * 2) + 1) + ", actual=" + htds.cachehits,
htds.cachehits >= ((count * 2) + 1));
}
@Test (expected=org.apache.hadoop.hbase.TableExistsException.class)
public void testNoSuchTable() throws IOException {
final String name = "testNoSuchTable";
FileSystem fs = FileSystem.get(UTIL.getConfiguration());
// Cleanup old tests if any detrius laying around.
Path rootdir = new Path(UTIL.getDataTestDir(), name);
TableDescriptors htds = new FSTableDescriptors(fs, rootdir);
htds.get("NoSuchTable");
}
@Test
public void testUpdates() throws IOException {
final String name = "testUpdates";
FileSystem fs = FileSystem.get(UTIL.getConfiguration());
// Cleanup old tests if any detrius laying around.
Path rootdir = new Path(UTIL.getDataTestDir(), name);
TableDescriptors htds = new FSTableDescriptors(fs, rootdir);
HTableDescriptor htd = new HTableDescriptor(name);
htds.add(htd);
htds.add(htd);
htds.add(htd);
}
@Test
public void testTableInfoFileStatusComparator() {
FileStatus bare =
new FileStatus(0, false, 0, 0, -1, new Path("/tmp", FSTableDescriptors.TABLEINFO_NAME));
FileStatus future =
new FileStatus(0, false, 0, 0, -1,
new Path("/tmp/tablinfo." + System.currentTimeMillis()));
FileStatus farFuture =
new FileStatus(0, false, 0, 0, -1,
new Path("/tmp/tablinfo." + System.currentTimeMillis() + 1000));
FileStatus [] alist = {bare, future, farFuture};
FileStatus [] blist = {bare, farFuture, future};
FileStatus [] clist = {farFuture, bare, future};
FSTableDescriptors.FileStatusFileNameComparator c =
new FSTableDescriptors.FileStatusFileNameComparator();
Arrays.sort(alist, c);
Arrays.sort(blist, c);
Arrays.sort(clist, c);
// Now assert all sorted same in way we want.
for (int i = 0; i < alist.length; i++) {
assertTrue(alist[i].equals(blist[i]));
assertTrue(blist[i].equals(clist[i]));
assertTrue(clist[i].equals(i == 0? farFuture: i == 1? future: bare));
}
}
}