| /* |
| * 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.accumulo.test; |
| |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.Collections; |
| import java.util.SortedSet; |
| import java.util.TreeSet; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.accumulo.core.client.Accumulo; |
| import org.apache.accumulo.core.client.AccumuloClient; |
| import org.apache.accumulo.core.client.BatchScanner; |
| import org.apache.accumulo.core.client.BatchWriter; |
| import org.apache.accumulo.core.client.IsolatedScanner; |
| import org.apache.accumulo.core.client.IteratorSetting; |
| import org.apache.accumulo.core.client.Scanner; |
| import org.apache.accumulo.core.client.ScannerBase; |
| import org.apache.accumulo.core.data.Mutation; |
| import org.apache.accumulo.core.data.Range; |
| import org.apache.accumulo.core.security.Authorizations; |
| import org.apache.accumulo.fate.util.UtilWaitThread; |
| import org.apache.accumulo.harness.AccumuloClusterHarness; |
| import org.apache.accumulo.test.functional.SlowIterator; |
| import org.apache.hadoop.io.Text; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class ScanFlushWithTimeIT extends AccumuloClusterHarness { |
| |
| private static final Logger log = LoggerFactory.getLogger(ScanFlushWithTimeIT.class); |
| |
| @Override |
| protected int defaultTimeoutSeconds() { |
| return 120; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| log.info("Creating table"); |
| String tableName = getUniqueNames(1)[0]; |
| try (AccumuloClient c = Accumulo.newClient().from(getClientProps()).build()) { |
| c.tableOperations().create(tableName); |
| log.info("Adding slow iterator"); |
| IteratorSetting setting = new IteratorSetting(50, SlowIterator.class); |
| SlowIterator.setSleepTime(setting, 1000); |
| c.tableOperations().attachIterator(tableName, setting); |
| log.info("Splitting the table"); |
| SortedSet<Text> partitionKeys = new TreeSet<>(); |
| partitionKeys.add(new Text("5")); |
| c.tableOperations().addSplits(tableName, partitionKeys); |
| log.info("waiting for zookeeper propagation"); |
| UtilWaitThread.sleep(5 * 1000); |
| log.info("Adding a few entries"); |
| try (BatchWriter bw = c.createBatchWriter(tableName)) { |
| for (int i = 0; i < 10; i++) { |
| Mutation m = new Mutation("" + i); |
| m.put("", "", ""); |
| bw.addMutation(m); |
| } |
| } |
| log.info("Fetching some entries: should timeout and return something"); |
| |
| log.info("Scanner"); |
| try (Scanner s = c.createScanner(tableName, Authorizations.EMPTY)) { |
| s.setBatchTimeout(500, TimeUnit.MILLISECONDS); |
| testScanner(s, 1200); |
| |
| log.info("IsolatedScanner"); |
| IsolatedScanner is = new IsolatedScanner(s); |
| is.setReadaheadThreshold(1); |
| // buffers an entire row |
| testScanner(is, 2200); |
| } |
| |
| log.info("BatchScanner"); |
| try (BatchScanner bs = c.createBatchScanner(tableName, Authorizations.EMPTY, 5)) { |
| bs.setBatchTimeout(500, TimeUnit.MILLISECONDS); |
| bs.setRanges(Collections.singletonList(new Range())); |
| testScanner(bs, 1200); |
| } |
| } |
| } |
| |
| private void testScanner(ScannerBase s, long expected) { |
| long now = System.currentTimeMillis(); |
| s.iterator().next(); |
| long diff = System.currentTimeMillis() - now; |
| log.info("Diff = {}", diff); |
| assertTrue("Scanner taking too long to return intermediate results: " + diff, diff < expected); |
| } |
| } |