/**
* Copyright 2009 The Apache Software Foundation
*
* 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.client;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.HServerAddress;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.NotServingRegionException;
import org.apache.hadoop.hbase.TableExistsException;
import org.apache.hadoop.hbase.TableNotDisabledException;
import org.apache.hadoop.hbase.TableNotFoundException;
import org.apache.hadoop.hbase.executor.EventHandler;
import org.apache.hadoop.hbase.executor.EventHandler.EventType;
import org.apache.hadoop.hbase.executor.ExecutorService;
import org.apache.hadoop.hbase.master.MasterServices;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
/**
* Class to test HBaseAdmin.
* Spins up the minicluster once at test start and then takes it down afterward.
* Add any testing of HBaseAdmin functionality here.
*/
public class TestAdmin {
final Log LOG = LogFactory.getLog(getClass());
private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
private HBaseAdmin admin;
@BeforeClass
public static void setUpBeforeClass() throws Exception {
TEST_UTIL.getConfiguration().setInt("hbase.regionserver.msginterval", 100);
TEST_UTIL.getConfiguration().setInt("hbase.client.pause", 250);
TEST_UTIL.getConfiguration().setInt("hbase.client.retries.number", 6);
TEST_UTIL.startMiniCluster(3);
}
@AfterClass
public static void tearDownAfterClass() throws Exception {
TEST_UTIL.shutdownMiniCluster();
}
@Before
public void setUp() throws Exception {
this.admin = new HBaseAdmin(TEST_UTIL.getConfiguration());
}
@Test
public void testDisableAndEnableTable() throws IOException {
final byte [] row = Bytes.toBytes("row");
final byte [] qualifier = Bytes.toBytes("qualifier");
final byte [] value = Bytes.toBytes("value");
final byte [] table = Bytes.toBytes("testDisableAndEnableTable");
HTable ht = TEST_UTIL.createTable(table, HConstants.CATALOG_FAMILY);
Put put = new Put(row);
put.add(HConstants.CATALOG_FAMILY, qualifier, value);
ht.put(put);
Get get = new Get(row);
get.addColumn(HConstants.CATALOG_FAMILY, qualifier);
ht.get(get);
this.admin.disableTable(table);
// Test that table is disabled
get = new Get(row);
get.addColumn(HConstants.CATALOG_FAMILY, qualifier);
boolean ok = false;
try {
ht.get(get);
} catch (NotServingRegionException e) {
ok = true;
} catch (RetriesExhaustedException e) {
ok = true;
}
assertTrue(ok);
this.admin.enableTable(table);
// Test that table is enabled
try {
ht.get(get);
} catch (RetriesExhaustedException e) {
ok = false;
}
assertTrue(ok);
}
@Test
public void testCreateTable() throws IOException {
HTableDescriptor [] tables = admin.listTables();
int numTables = tables.length;
TEST_UTIL.createTable(Bytes.toBytes("testCreateTable"),
HConstants.CATALOG_FAMILY);
tables = this.admin.listTables();
assertEquals(numTables + 1, tables.length);
}
@Test
public void testGetTableDescriptor() throws IOException {
HColumnDescriptor fam1 = new HColumnDescriptor("fam1");
HColumnDescriptor fam2 = new HColumnDescriptor("fam2");
HColumnDescriptor fam3 = new HColumnDescriptor("fam3");
HTableDescriptor htd = new HTableDescriptor("myTestTable");
htd.addFamily(fam1);
htd.addFamily(fam2);
htd.addFamily(fam3);
this.admin.createTable(htd);
HTable table = new HTable(TEST_UTIL.getConfiguration(), "myTestTable");
HTableDescriptor confirmedHtd = table.getTableDescriptor();
assertEquals(htd.compareTo(confirmedHtd), 0);
}
/**
* Verify schema modification takes.
* @throws IOException
*/
@Test public void testChangeTableSchema() throws IOException {
final byte [] tableName = Bytes.toBytes("changeTableSchema");
HTableDescriptor [] tables = admin.listTables();
int numTables = tables.length;
TEST_UTIL.createTable(tableName, HConstants.CATALOG_FAMILY);
tables = this.admin.listTables();
assertEquals(numTables + 1, tables.length);
// FIRST, do htabledescriptor changes.
HTableDescriptor htd = this.admin.getTableDescriptor(tableName);
// Make a copy and assert copy is good.
HTableDescriptor copy = new HTableDescriptor(htd);
assertTrue(htd.equals(copy));
// Now amend the copy. Introduce differences.
long newFlushSize = htd.getMemStoreFlushSize() / 2;
copy.setMemStoreFlushSize(newFlushSize);
final String key = "anyoldkey";
assertTrue(htd.getValue(key) == null);
copy.setValue(key, key);
boolean expectedException = false;
try {
this.admin.modifyTable(tableName, copy);
} catch (TableNotDisabledException re) {
expectedException = true;
}
assertTrue(expectedException);
this.admin.disableTable(tableName);
assertTrue(this.admin.isTableDisabled(tableName));
modifyTable(tableName, copy);
HTableDescriptor modifiedHtd = this.admin.getTableDescriptor(tableName);
// Assert returned modifiedhcd is same as the copy.
assertFalse(htd.equals(modifiedHtd));
assertTrue(copy.equals(modifiedHtd));
assertEquals(newFlushSize, modifiedHtd.getMemStoreFlushSize());
assertEquals(key, modifiedHtd.getValue(key));
// Reenable table to test it fails if not disabled.
this.admin.enableTable(tableName);
assertFalse(this.admin.isTableDisabled(tableName));
// Now work on column family changes.
int countOfFamilies = modifiedHtd.getFamilies().size();
assertTrue(countOfFamilies > 0);
HColumnDescriptor hcd = modifiedHtd.getFamilies().iterator().next();
int maxversions = hcd.getMaxVersions();
final int newMaxVersions = maxversions + 1;
hcd.setMaxVersions(newMaxVersions);
final byte [] hcdName = hcd.getName();
expectedException = false;
try {
this.admin.modifyColumn(tableName, hcd);
} catch (TableNotDisabledException re) {
expectedException = true;
}
assertTrue(expectedException);
this.admin.disableTable(tableName);
assertTrue(this.admin.isTableDisabled(tableName));
// Modify Column is synchronous
this.admin.modifyColumn(tableName, hcd);
modifiedHtd = this.admin.getTableDescriptor(tableName);
HColumnDescriptor modifiedHcd = modifiedHtd.getFamily(hcdName);
assertEquals(newMaxVersions, modifiedHcd.getMaxVersions());
// Try adding a column
// Reenable table to test it fails if not disabled.
this.admin.enableTable(tableName);
assertFalse(this.admin.isTableDisabled(tableName));
final String xtracolName = "xtracol";
HColumnDescriptor xtracol = new HColumnDescriptor(xtracolName);
xtracol.setValue(xtracolName, xtracolName);
try {
this.admin.addColumn(tableName, xtracol);
} catch (TableNotDisabledException re) {
expectedException = true;
}
assertTrue(expectedException);
this.admin.disableTable(tableName);
assertTrue(this.admin.isTableDisabled(tableName));
this.admin.addColumn(tableName, xtracol);
modifiedHtd = this.admin.getTableDescriptor(tableName);
hcd = modifiedHtd.getFamily(xtracol.getName());
assertTrue(hcd != null);
assertTrue(hcd.getValue(xtracolName).equals(xtracolName));
// Delete the just-added column.
this.admin.deleteColumn(tableName, xtracol.getName());
modifiedHtd = this.admin.getTableDescriptor(tableName);
hcd = modifiedHtd.getFamily(xtracol.getName());
assertTrue(hcd == null);
// Delete the table
this.admin.deleteTable(tableName);
this.admin.listTables();
assertFalse(this.admin.tableExists(tableName));
}
/**
* Modify table is async so wait on completion of the table operation in master.
* @param tableName
* @param htd
* @throws IOException
*/
private void modifyTable(final byte [] tableName, final HTableDescriptor htd)
throws IOException {
MasterServices services = TEST_UTIL.getMiniHBaseCluster().getMaster();
ExecutorService executor = services.getExecutorService();
AtomicBoolean done = new AtomicBoolean(false);
executor.registerListener(EventType.C_M_MODIFY_TABLE, new DoneListener(done));
this.admin.modifyTable(tableName, htd);
while (!done.get()) {
synchronized (done) {
try {
done.wait(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
executor.unregisterListener(EventType.C_M_MODIFY_TABLE);
}
/**
* Listens for when an event is done in Master.
*/
static class DoneListener implements EventHandler.EventHandlerListener {
private final AtomicBoolean done;
DoneListener(final AtomicBoolean done) {
super();
this.done = done;
}
@Override
public void afterProcess(EventHandler event) {
this.done.set(true);
synchronized (this.done) {
// Wake anyone waiting on this value to change.
this.done.notifyAll();
}
}
@Override
public void beforeProcess(EventHandler event) {
// continue
}
}
protected void verifyRoundRobinDistribution(HTable ht, int expectedRegions) throws IOException {
int numRS = ht.getCurrentNrHRS();
Map<HRegionInfo,HServerAddress> regions = ht.getRegionsInfo();
Map<HServerAddress, List<HRegionInfo>> server2Regions = new HashMap<HServerAddress, List<HRegionInfo>>();
for (Map.Entry<HRegionInfo,HServerAddress> entry : regions.entrySet()) {
HServerAddress server = entry.getValue();
List<HRegionInfo> regs = server2Regions.get(server);
if (regs == null) {
regs = new ArrayList<HRegionInfo>();
server2Regions.put(server, regs);
}
regs.add(entry.getKey());
}
float average = (float) expectedRegions/numRS;
int min = (int)Math.floor(average);
int max = (int)Math.ceil(average);
for (List<HRegionInfo> regionList : server2Regions.values()) {
assertTrue(regionList.size() == min || regionList.size() == max);
}
}
@Test
public void testCreateTableWithRegions() throws IOException, InterruptedException {
byte[] tableName = Bytes.toBytes("testCreateTableWithRegions");
byte [][] splitKeys = {
new byte [] { 1, 1, 1 },
new byte [] { 2, 2, 2 },
new byte [] { 3, 3, 3 },
new byte [] { 4, 4, 4 },
new byte [] { 5, 5, 5 },
new byte [] { 6, 6, 6 },
new byte [] { 7, 7, 7 },
new byte [] { 8, 8, 8 },
new byte [] { 9, 9, 9 },
};
int expectedRegions = splitKeys.length + 1;
HTableDescriptor desc = new HTableDescriptor(tableName);
desc.addFamily(new HColumnDescriptor(HConstants.CATALOG_FAMILY));
admin.createTable(desc, splitKeys);
HTable ht = new HTable(TEST_UTIL.getConfiguration(), tableName);
Map<HRegionInfo,HServerAddress> regions = ht.getRegionsInfo();
assertEquals("Tried to create " + expectedRegions + " regions " +
"but only found " + regions.size(),
expectedRegions, regions.size());
System.err.println("Found " + regions.size() + " regions");
Iterator<HRegionInfo> hris = regions.keySet().iterator();
HRegionInfo hri = hris.next();
assertTrue(hri.getStartKey() == null || hri.getStartKey().length == 0);
assertTrue(Bytes.equals(hri.getEndKey(), splitKeys[0]));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), splitKeys[0]));
assertTrue(Bytes.equals(hri.getEndKey(), splitKeys[1]));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), splitKeys[1]));
assertTrue(Bytes.equals(hri.getEndKey(), splitKeys[2]));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), splitKeys[2]));
assertTrue(Bytes.equals(hri.getEndKey(), splitKeys[3]));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), splitKeys[3]));
assertTrue(Bytes.equals(hri.getEndKey(), splitKeys[4]));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), splitKeys[4]));
assertTrue(Bytes.equals(hri.getEndKey(), splitKeys[5]));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), splitKeys[5]));
assertTrue(Bytes.equals(hri.getEndKey(), splitKeys[6]));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), splitKeys[6]));
assertTrue(Bytes.equals(hri.getEndKey(), splitKeys[7]));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), splitKeys[7]));
assertTrue(Bytes.equals(hri.getEndKey(), splitKeys[8]));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), splitKeys[8]));
assertTrue(hri.getEndKey() == null || hri.getEndKey().length == 0);
verifyRoundRobinDistribution(ht, expectedRegions);
// Now test using start/end with a number of regions
// Use 80 bit numbers to make sure we aren't limited
byte [] startKey = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
byte [] endKey = { 9, 9, 9, 9, 9, 9, 9, 9, 9, 9 };
// Splitting into 10 regions, we expect (null,1) ... (9, null)
// with (1,2) (2,3) (3,4) (4,5) (5,6) (6,7) (7,8) (8,9) in the middle
expectedRegions = 10;
byte [] TABLE_2 = Bytes.add(tableName, Bytes.toBytes("_2"));
desc = new HTableDescriptor(TABLE_2);
desc.addFamily(new HColumnDescriptor(HConstants.CATALOG_FAMILY));
admin = new HBaseAdmin(TEST_UTIL.getConfiguration());
admin.createTable(desc, startKey, endKey, expectedRegions);
ht = new HTable(TEST_UTIL.getConfiguration(), TABLE_2);
regions = ht.getRegionsInfo();
assertEquals("Tried to create " + expectedRegions + " regions " +
"but only found " + regions.size(),
expectedRegions, regions.size());
System.err.println("Found " + regions.size() + " regions");
hris = regions.keySet().iterator();
hri = hris.next();
assertTrue(hri.getStartKey() == null || hri.getStartKey().length == 0);
assertTrue(Bytes.equals(hri.getEndKey(), new byte [] {1,1,1,1,1,1,1,1,1,1}));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), new byte [] {1,1,1,1,1,1,1,1,1,1}));
assertTrue(Bytes.equals(hri.getEndKey(), new byte [] {2,2,2,2,2,2,2,2,2,2}));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), new byte [] {2,2,2,2,2,2,2,2,2,2}));
assertTrue(Bytes.equals(hri.getEndKey(), new byte [] {3,3,3,3,3,3,3,3,3,3}));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), new byte [] {3,3,3,3,3,3,3,3,3,3}));
assertTrue(Bytes.equals(hri.getEndKey(), new byte [] {4,4,4,4,4,4,4,4,4,4}));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), new byte [] {4,4,4,4,4,4,4,4,4,4}));
assertTrue(Bytes.equals(hri.getEndKey(), new byte [] {5,5,5,5,5,5,5,5,5,5}));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), new byte [] {5,5,5,5,5,5,5,5,5,5}));
assertTrue(Bytes.equals(hri.getEndKey(), new byte [] {6,6,6,6,6,6,6,6,6,6}));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), new byte [] {6,6,6,6,6,6,6,6,6,6}));
assertTrue(Bytes.equals(hri.getEndKey(), new byte [] {7,7,7,7,7,7,7,7,7,7}));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), new byte [] {7,7,7,7,7,7,7,7,7,7}));
assertTrue(Bytes.equals(hri.getEndKey(), new byte [] {8,8,8,8,8,8,8,8,8,8}));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), new byte [] {8,8,8,8,8,8,8,8,8,8}));
assertTrue(Bytes.equals(hri.getEndKey(), new byte [] {9,9,9,9,9,9,9,9,9,9}));
hri = hris.next();
assertTrue(Bytes.equals(hri.getStartKey(), new byte [] {9,9,9,9,9,9,9,9,9,9}));
assertTrue(hri.getEndKey() == null || hri.getEndKey().length == 0);
verifyRoundRobinDistribution(ht, expectedRegions);
// Try once more with something that divides into something infinite
startKey = new byte [] { 0, 0, 0, 0, 0, 0 };
endKey = new byte [] { 1, 0, 0, 0, 0, 0 };
expectedRegions = 5;
byte [] TABLE_3 = Bytes.add(tableName, Bytes.toBytes("_3"));
desc = new HTableDescriptor(TABLE_3);
desc.addFamily(new HColumnDescriptor(HConstants.CATALOG_FAMILY));
admin = new HBaseAdmin(TEST_UTIL.getConfiguration());
admin.createTable(desc, startKey, endKey, expectedRegions);
ht = new HTable(TEST_UTIL.getConfiguration(), TABLE_3);
regions = ht.getRegionsInfo();
assertEquals("Tried to create " + expectedRegions + " regions " +
"but only found " + regions.size(),
expectedRegions, regions.size());
System.err.println("Found " + regions.size() + " regions");
verifyRoundRobinDistribution(ht, expectedRegions);
// Try an invalid case where there are duplicate split keys
splitKeys = new byte [][] {
new byte [] { 1, 1, 1 },
new byte [] { 2, 2, 2 },
new byte [] { 3, 3, 3 },
new byte [] { 2, 2, 2 }
};
byte [] TABLE_4 = Bytes.add(tableName, Bytes.toBytes("_4"));
desc = new HTableDescriptor(TABLE_4);
desc.addFamily(new HColumnDescriptor(HConstants.CATALOG_FAMILY));
admin = new HBaseAdmin(TEST_UTIL.getConfiguration());
try {
admin.createTable(desc, splitKeys);
assertTrue("Should not be able to create this table because of " +
"duplicate split keys", false);
} catch(IllegalArgumentException iae) {
// Expected
}
}
@Test
public void testTableExist() throws IOException {
final byte [] table = Bytes.toBytes("testTableExist");
boolean exist = false;
exist = this.admin.tableExists(table);
assertEquals(false, exist);
TEST_UTIL.createTable(table, HConstants.CATALOG_FAMILY);
exist = this.admin.tableExists(table);
assertEquals(true, exist);
}
/**
* Tests forcing split from client and having scanners successfully ride over split.
* @throws Exception
* @throws IOException
*/
@Test
public void testForceSplit() throws Exception {
byte [] familyName = HConstants.CATALOG_FAMILY;
byte [] tableName = Bytes.toBytes("testForceSplit");
final HTable table = TEST_UTIL.createTable(tableName, familyName);
byte[] k = new byte[3];
int rowCount = 0;
for (byte b1 = 'a'; b1 < 'z'; b1++) {
for (byte b2 = 'a'; b2 < 'z'; b2++) {
for (byte b3 = 'a'; b3 < 'z'; b3++) {
k[0] = b1;
k[1] = b2;
k[2] = b3;
Put put = new Put(k);
put.add(familyName, new byte[0], k);
table.put(put);
rowCount++;
}
}
}
// get the initial layout (should just be one region)
Map<HRegionInfo,HServerAddress> m = table.getRegionsInfo();
System.out.println("Initial regions (" + m.size() + "): " + m);
assertTrue(m.size() == 1);
// Verify row count
Scan scan = new Scan();
ResultScanner scanner = table.getScanner(scan);
int rows = 0;
for(@SuppressWarnings("unused") Result result : scanner) {
rows++;
}
scanner.close();
assertEquals(rowCount, rows);
// Have an outstanding scan going on to make sure we can scan over splits.
scan = new Scan();
scanner = table.getScanner(scan);
// Scan first row so we are into first region before split happens.
scanner.next();
final AtomicInteger count = new AtomicInteger(0);
Thread t = new Thread("CheckForSplit") {
public void run() {
for (int i = 0; i < 20; i++) {
try {
sleep(1000);
} catch (InterruptedException e) {
continue;
}
// check again table = new HTable(conf, tableName);
Map<HRegionInfo, HServerAddress> regions = null;
try {
regions = table.getRegionsInfo();
} catch (IOException e) {
e.printStackTrace();
}
if (regions == null) continue;
count.set(regions.size());
if (count.get() >= 2) break;
LOG.debug("Cycle waiting on split");
}
}
};
t.start();
// Split the table
this.admin.split(Bytes.toString(tableName));
t.join();
// Verify row count
rows = 1; // We counted one row above.
for (@SuppressWarnings("unused") Result result : scanner) {
rows++;
if (rows > rowCount) {
scanner.close();
assertTrue("Scanned more than expected (" + rowCount + ")", false);
}
}
scanner.close();
assertEquals(rowCount, rows);
}
/**
* HADOOP-2156
* @throws IOException
*/
@Test (expected=IllegalArgumentException.class)
public void testEmptyHHTableDescriptor() throws IOException {
this.admin.createTable(new HTableDescriptor());
}
@Test
public void testEnableDisableAddColumnDeleteColumn() throws Exception {
byte [] tableName = Bytes.toBytes("testMasterAdmin");
TEST_UTIL.createTable(tableName, HConstants.CATALOG_FAMILY);
this.admin.disableTable(tableName);
try {
new HTable(TEST_UTIL.getConfiguration(), tableName);
} catch (org.apache.hadoop.hbase.client.RegionOfflineException e) {
// Expected
}
this.admin.addColumn(tableName, new HColumnDescriptor("col2"));
this.admin.enableTable(tableName);
try {
this.admin.deleteColumn(tableName, Bytes.toBytes("col2"));
} catch(TableNotDisabledException e) {
// Expected
}
this.admin.disableTable(tableName);
this.admin.deleteColumn(tableName, Bytes.toBytes("col2"));
this.admin.deleteTable(tableName);
}
@Test
public void testCreateBadTables() throws IOException {
String msg = null;
try {
this.admin.createTable(HTableDescriptor.ROOT_TABLEDESC);
} catch (IllegalArgumentException e) {
msg = e.toString();
}
assertTrue("Unexcepted exception message " + msg, msg != null &&
msg.startsWith(IllegalArgumentException.class.getName()) &&
msg.contains(HTableDescriptor.ROOT_TABLEDESC.getNameAsString()));
msg = null;
try {
this.admin.createTable(HTableDescriptor.META_TABLEDESC);
} catch(IllegalArgumentException e) {
msg = e.toString();
}
assertTrue("Unexcepted exception message " + msg, msg != null &&
msg.startsWith(IllegalArgumentException.class.getName()) &&
msg.contains(HTableDescriptor.META_TABLEDESC.getNameAsString()));
// Now try and do concurrent creation with a bunch of threads.
final HTableDescriptor threadDesc =
new HTableDescriptor("threaded_testCreateBadTables");
threadDesc.addFamily(new HColumnDescriptor(HConstants.CATALOG_FAMILY));
int count = 10;
Thread [] threads = new Thread [count];
final AtomicInteger successes = new AtomicInteger(0);
final AtomicInteger failures = new AtomicInteger(0);
final HBaseAdmin localAdmin = this.admin;
for (int i = 0; i < count; i++) {
threads[i] = new Thread(Integer.toString(i)) {
@Override
public void run() {
try {
localAdmin.createTable(threadDesc);
successes.incrementAndGet();
} catch (TableExistsException e) {
failures.incrementAndGet();
} catch (IOException e) {
throw new RuntimeException("Failed threaded create" + getName(), e);
}
}
};
}
for (int i = 0; i < count; i++) {
threads[i].start();
}
for (int i = 0; i < count; i++) {
while(threads[i].isAlive()) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// continue
}
}
}
// All threads are now dead. Count up how many tables were created and
// how many failed w/ appropriate exception.
assertEquals(1, successes.get());
assertEquals(count - 1, failures.get());
}
/**
* Test for hadoop-1581 'HBASE: Unopenable tablename bug'.
* @throws Exception
*/
@Test
public void testTableNameClash() throws Exception {
String name = "testTableNameClash";
admin.createTable(new HTableDescriptor(name + "SOMEUPPERCASE"));
admin.createTable(new HTableDescriptor(name));
// Before fix, below would fail throwing a NoServerForRegionException.
new HTable(TEST_UTIL.getConfiguration(), name);
}
/**
* Test read only tables
* @throws Exception
*/
@Test
public void testReadOnlyTable() throws Exception {
byte [] name = Bytes.toBytes("testReadOnlyTable");
HTable table = TEST_UTIL.createTable(name, HConstants.CATALOG_FAMILY);
byte[] value = Bytes.toBytes("somedata");
// This used to use an empty row... That must have been a bug
Put put = new Put(value);
put.add(HConstants.CATALOG_FAMILY, HConstants.CATALOG_FAMILY, value);
table.put(put);
}
/**
* Test that user table names can contain '-' and '.' so long as they do not
* start with same. HBASE-771
* @throws IOException
*/
@Test
public void testTableNames() throws IOException {
byte[][] illegalNames = new byte[][] {
Bytes.toBytes("-bad"),
Bytes.toBytes(".bad"),
HConstants.ROOT_TABLE_NAME,
HConstants.META_TABLE_NAME
};
for (int i = 0; i < illegalNames.length; i++) {
try {
new HTableDescriptor(illegalNames[i]);
throw new IOException("Did not detect '" +
Bytes.toString(illegalNames[i]) + "' as an illegal user table name");
} catch (IllegalArgumentException e) {
// expected
}
}
byte[] legalName = Bytes.toBytes("g-oo.d");
try {
new HTableDescriptor(legalName);
} catch (IllegalArgumentException e) {
throw new IOException("Legal user table name: '" +
Bytes.toString(legalName) + "' caused IllegalArgumentException: " +
e.getMessage());
}
}
/**
* For HADOOP-2579
* @throws IOException
*/
@Test (expected=TableExistsException.class)
public void testTableNotFoundExceptionWithATable() throws IOException {
final byte [] name = Bytes.toBytes("testTableNotFoundExceptionWithATable");
TEST_UTIL.createTable(name, HConstants.CATALOG_FAMILY);
TEST_UTIL.createTable(name, HConstants.CATALOG_FAMILY);
}
/**
* For HADOOP-2579
* @throws IOException
*/
@Test (expected=TableNotFoundException.class)
public void testTableNotFoundExceptionWithoutAnyTables() throws IOException {
new HTable(TEST_UTIL.getConfiguration(),
"testTableNotFoundExceptionWithoutAnyTables");
}
@Test
public void testHundredsOfTable() throws IOException{
final int times = 100;
HColumnDescriptor fam1 = new HColumnDescriptor("fam1");
HColumnDescriptor fam2 = new HColumnDescriptor("fam2");
HColumnDescriptor fam3 = new HColumnDescriptor("fam3");
for(int i = 0; i < times; i++) {
HTableDescriptor htd = new HTableDescriptor("table"+i);
htd.addFamily(fam1);
htd.addFamily(fam2);
htd.addFamily(fam3);
this.admin.createTable(htd);
}
for(int i = 0; i < times; i++) {
String tableName = "table"+i;
this.admin.disableTable(tableName);
byte [] tableNameBytes = Bytes.toBytes(tableName);
assertTrue(this.admin.isTableDisabled(tableNameBytes));
this.admin.enableTable(tableName);
assertFalse(this.admin.isTableDisabled(tableNameBytes));
this.admin.disableTable(tableName);
assertTrue(this.admin.isTableDisabled(tableNameBytes));
this.admin.deleteTable(tableName);
}
}
}