/*
*
* 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.replication.regionserver;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.regionserver.wal.HLog;
import org.apache.hadoop.hbase.regionserver.wal.HLogKey;
import org.apache.hadoop.hbase.regionserver.wal.WALEdit;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
@Category(MediumTests.class)
public class TestReplicationSink {
private static final Log LOG = LogFactory.getLog(TestReplicationSink.class);
private static final int BATCH_SIZE = 10;
private final static HBaseTestingUtility TEST_UTIL =
new HBaseTestingUtility();
private static ReplicationSink SINK;
private static final byte[] TABLE_NAME1 =
Bytes.toBytes("table1");
private static final byte[] TABLE_NAME2 =
Bytes.toBytes("table2");
private static final byte[] FAM_NAME1 = Bytes.toBytes("info1");
private static final byte[] FAM_NAME2 = Bytes.toBytes("info2");
private static HTable table1;
private static Stoppable STOPPABLE = new Stoppable() {
final AtomicBoolean stop = new AtomicBoolean(false);
@Override
public boolean isStopped() {
return this.stop.get();
}
@Override
public void stop(String why) {
LOG.info("STOPPING BECAUSE: " + why);
this.stop.set(true);
}
};
private static HTable table2;
/**
* @throws java.lang.Exception
*/
@BeforeClass
public static void setUpBeforeClass() throws Exception {
TEST_UTIL.getConfiguration().setBoolean("dfs.support.append", true);
TEST_UTIL.getConfiguration().setBoolean(HConstants.REPLICATION_ENABLE_KEY, true);
TEST_UTIL.startMiniCluster(3);
SINK =
new ReplicationSink(new Configuration(TEST_UTIL.getConfiguration()), STOPPABLE);
table1 = TEST_UTIL.createTable(TABLE_NAME1, FAM_NAME1);
table2 = TEST_UTIL.createTable(TABLE_NAME2, FAM_NAME2);
}
/**
* @throws java.lang.Exception
*/
@AfterClass
public static void tearDownAfterClass() throws Exception {
STOPPABLE.stop("Shutting down");
TEST_UTIL.shutdownMiniCluster();
}
/**
* @throws java.lang.Exception
*/
@Before
public void setUp() throws Exception {
table1 = TEST_UTIL.truncateTable(TABLE_NAME1);
table2 = TEST_UTIL.truncateTable(TABLE_NAME2);
}
/**
* Insert a whole batch of entries
* @throws Exception
*/
@Test
public void testBatchSink() throws Exception {
HLog.Entry[] entries = new HLog.Entry[BATCH_SIZE];
for(int i = 0; i < BATCH_SIZE; i++) {
entries[i] = createEntry(TABLE_NAME1, i, KeyValue.Type.Put);
}
SINK.replicateEntries(entries);
Scan scan = new Scan();
ResultScanner scanRes = table1.getScanner(scan);
assertEquals(BATCH_SIZE, scanRes.next(BATCH_SIZE).length);
}
/**
* Insert a mix of puts and deletes
* @throws Exception
*/
@Test
public void testMixedPutDelete() throws Exception {
HLog.Entry[] entries = new HLog.Entry[BATCH_SIZE/2];
for(int i = 0; i < BATCH_SIZE/2; i++) {
entries[i] = createEntry(TABLE_NAME1, i, KeyValue.Type.Put);
}
SINK.replicateEntries(entries);
entries = new HLog.Entry[BATCH_SIZE];
for(int i = 0; i < BATCH_SIZE; i++) {
entries[i] = createEntry(TABLE_NAME1, i,
i % 2 != 0 ? KeyValue.Type.Put: KeyValue.Type.DeleteColumn);
}
SINK.replicateEntries(entries);
Scan scan = new Scan();
ResultScanner scanRes = table1.getScanner(scan);
assertEquals(BATCH_SIZE/2, scanRes.next(BATCH_SIZE).length);
}
/**
* Insert to 2 different tables
* @throws Exception
*/
@Test
public void testMixedPutTables() throws Exception {
HLog.Entry[] entries = new HLog.Entry[BATCH_SIZE];
for(int i = 0; i < BATCH_SIZE; i++) {
entries[i] =
createEntry( i % 2 == 0 ? TABLE_NAME2 : TABLE_NAME1,
i, KeyValue.Type.Put);
}
SINK.replicateEntries(entries);
Scan scan = new Scan();
ResultScanner scanRes = table2.getScanner(scan);
for(Result res : scanRes) {
assertTrue(Bytes.toInt(res.getRow()) % 2 == 0);
}
}
/**
* Insert then do different types of deletes
* @throws Exception
*/
@Test
public void testMixedDeletes() throws Exception {
HLog.Entry[] entries = new HLog.Entry[3];
for(int i = 0; i < 3; i++) {
entries[i] = createEntry(TABLE_NAME1, i, KeyValue.Type.Put);
}
SINK.replicateEntries(entries);
entries = new HLog.Entry[3];
entries[0] = createEntry(TABLE_NAME1, 0, KeyValue.Type.DeleteColumn);
entries[1] = createEntry(TABLE_NAME1, 1, KeyValue.Type.DeleteFamily);
entries[2] = createEntry(TABLE_NAME1, 2, KeyValue.Type.DeleteColumn);
SINK.replicateEntries(entries);
Scan scan = new Scan();
ResultScanner scanRes = table1.getScanner(scan);
assertEquals(0, scanRes.next(3).length);
}
/**
* Puts are buffered, but this tests when a delete (not-buffered) is applied
* before the actual Put that creates it.
* @throws Exception
*/
@Test
public void testApplyDeleteBeforePut() throws Exception {
HLog.Entry[] entries = new HLog.Entry[5];
for(int i = 0; i < 2; i++) {
entries[i] = createEntry(TABLE_NAME1, i, KeyValue.Type.Put);
}
entries[2] = createEntry(TABLE_NAME1, 1, KeyValue.Type.DeleteFamily);
for(int i = 3; i < 5; i++) {
entries[i] = createEntry(TABLE_NAME1, i, KeyValue.Type.Put);
}
SINK.replicateEntries(entries);
Get get = new Get(Bytes.toBytes(1));
Result res = table1.get(get);
assertEquals(0, res.size());
}
private HLog.Entry createEntry(byte [] table, int row, KeyValue.Type type) {
byte[] fam = Bytes.equals(table, TABLE_NAME1) ? FAM_NAME1 : FAM_NAME2;
byte[] rowBytes = Bytes.toBytes(row);
// Just make sure we don't get the same ts for two consecutive rows with
// same key
try {
Thread.sleep(1);
} catch (InterruptedException e) {
LOG.info("Was interrupted while sleep, meh", e);
}
final long now = System.currentTimeMillis();
KeyValue kv = null;
if(type.getCode() == KeyValue.Type.Put.getCode()) {
kv = new KeyValue(rowBytes, fam, fam, now,
KeyValue.Type.Put, Bytes.toBytes(row));
} else if (type.getCode() == KeyValue.Type.DeleteColumn.getCode()) {
kv = new KeyValue(rowBytes, fam, fam,
now, KeyValue.Type.DeleteColumn);
} else if (type.getCode() == KeyValue.Type.DeleteFamily.getCode()) {
kv = new KeyValue(rowBytes, fam, null,
now, KeyValue.Type.DeleteFamily);
}
HLogKey key = new HLogKey(table, table, now, now,
HConstants.DEFAULT_CLUSTER_ID);
WALEdit edit = new WALEdit();
edit.add(kv);
return new HLog.Entry(key, edit);
}
}