| /** |
| * 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 java.util.ArrayList; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| import java.util.stream.IntStream; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.testclassification.ClientTests; |
| import org.apache.hadoop.hbase.testclassification.LargeTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.hadoop.hbase.util.Threads; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| @Category({ LargeTests.class, ClientTests.class }) |
| public class TestAsyncTableScanRenewLease { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestAsyncTableScanRenewLease.class); |
| |
| private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(); |
| |
| private static TableName TABLE_NAME = TableName.valueOf("async"); |
| |
| private static byte[] FAMILY = Bytes.toBytes("cf"); |
| |
| private static byte[] CQ = Bytes.toBytes("cq"); |
| |
| private static AsyncConnection CONN; |
| |
| private static AsyncTable<AdvancedScanResultConsumer> TABLE; |
| |
| private static int SCANNER_LEASE_TIMEOUT_PERIOD_MS = 5000; |
| |
| @BeforeClass |
| public static void setUp() throws Exception { |
| TEST_UTIL.getConfiguration().setInt(HConstants.HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD, |
| SCANNER_LEASE_TIMEOUT_PERIOD_MS); |
| TEST_UTIL.startMiniCluster(1); |
| TEST_UTIL.createTable(TABLE_NAME, FAMILY); |
| CONN = ConnectionFactory.createAsyncConnection(TEST_UTIL.getConfiguration()).get(); |
| TABLE = CONN.getTable(TABLE_NAME); |
| TABLE.putAll(IntStream.range(0, 10).mapToObj( |
| i -> new Put(Bytes.toBytes(String.format("%02d", i))).addColumn(FAMILY, CQ, Bytes.toBytes(i))) |
| .collect(Collectors.toList())).get(); |
| } |
| |
| @AfterClass |
| public static void tearDown() throws Exception { |
| CONN.close(); |
| TEST_UTIL.shutdownMiniCluster(); |
| } |
| |
| private static final class RenewLeaseConsumer implements AdvancedScanResultConsumer { |
| |
| private final List<Result> results = new ArrayList<>(); |
| |
| private Throwable error; |
| |
| private boolean finished = false; |
| |
| private boolean suspended = false; |
| |
| @Override |
| public synchronized void onNext(Result[] results, ScanController controller) { |
| for (Result result : results) { |
| this.results.add(result); |
| } |
| if (!suspended) { |
| ScanResumer resumer = controller.suspend(); |
| new Thread(() -> { |
| Threads.sleep(2 * SCANNER_LEASE_TIMEOUT_PERIOD_MS); |
| try { |
| TABLE.put(new Put(Bytes.toBytes(String.format("%02d", 10))).addColumn(FAMILY, CQ, |
| Bytes.toBytes(10))).get(); |
| } catch (Exception e) { |
| onError(e); |
| } |
| resumer.resume(); |
| }).start(); |
| } |
| } |
| |
| @Override |
| public synchronized void onError(Throwable error) { |
| this.finished = true; |
| this.error = error; |
| notifyAll(); |
| } |
| |
| @Override |
| public synchronized void onComplete() { |
| this.finished = true; |
| notifyAll(); |
| } |
| |
| public synchronized List<Result> get() throws Throwable { |
| while (!finished) { |
| wait(); |
| } |
| if (error != null) { |
| throw error; |
| } |
| return results; |
| } |
| } |
| |
| @Test |
| public void test() throws Throwable { |
| RenewLeaseConsumer consumer = new RenewLeaseConsumer(); |
| TABLE.scan(new Scan(), consumer); |
| List<Result> results = consumer.get(); |
| // should not see the newly added value |
| assertEquals(10, results.size()); |
| IntStream.range(0, 10).forEach(i -> { |
| Result result = results.get(i); |
| assertEquals(String.format("%02d", i), Bytes.toString(result.getRow())); |
| assertEquals(i, Bytes.toInt(result.getValue(FAMILY, CQ))); |
| }); |
| // now we can see the newly added value |
| List<Result> results2 = TABLE.scanAll(new Scan()).get(); |
| assertEquals(11, results2.size()); |
| IntStream.range(0, 11).forEach(i -> { |
| Result result = results2.get(i); |
| assertEquals(String.format("%02d", i), Bytes.toString(result.getRow())); |
| assertEquals(i, Bytes.toInt(result.getValue(FAMILY, CQ))); |
| }); |
| } |
| } |