Source code

001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.quotas;
019
020import static org.junit.Assert.assertEquals;
021import static org.junit.Assert.assertFalse;
022
023import java.io.IOException;
024import java.util.Arrays;
025import java.util.HashMap;
026import java.util.List;
027import java.util.Map;
028import java.util.Map.Entry;
029import org.apache.hadoop.conf.Configuration;
030import org.apache.hadoop.hbase.HBaseClassTestRule;
031import org.apache.hadoop.hbase.HBaseTestingUtil;
032import org.apache.hadoop.hbase.TableName;
033import org.apache.hadoop.hbase.Waiter;
034import org.apache.hadoop.hbase.client.Admin;
035import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
036import org.apache.hadoop.hbase.client.Connection;
037import org.apache.hadoop.hbase.client.Put;
038import org.apache.hadoop.hbase.client.RegionInfo;
039import org.apache.hadoop.hbase.client.Result;
040import org.apache.hadoop.hbase.client.ResultScanner;
041import org.apache.hadoop.hbase.client.Table;
042import org.apache.hadoop.hbase.client.TableDescriptor;
043import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
044import org.apache.hadoop.hbase.master.HMaster;
045import org.apache.hadoop.hbase.testclassification.LargeTests;
046import org.apache.hadoop.hbase.util.Bytes;
047import org.junit.After;
048import org.junit.Before;
049import org.junit.ClassRule;
050import org.junit.Rule;
051import org.junit.Test;
052import org.junit.experimental.categories.Category;
053import org.junit.rules.TestName;
054import org.slf4j.Logger;
055import org.slf4j.LoggerFactory;
056
057/**
058 * A test case to verify that region reports are expired when they are not sent.
059 */
060@Category(LargeTests.class)
061public class TestQuotaObserverChoreRegionReports {
062
063  @ClassRule
064  public static final HBaseClassTestRule CLASS_RULE =
065    HBaseClassTestRule.forClass(TestQuotaObserverChoreRegionReports.class);
066
067  private static final Logger LOG =
068    LoggerFactory.getLogger(TestQuotaObserverChoreRegionReports.class);
069  private static final HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();
070
071  @Rule
072  public TestName testName = new TestName();
073
074  @Before
075  public void setUp() throws Exception {
076    Configuration conf = TEST_UTIL.getConfiguration();
077    // Increase the frequency of some of the chores for responsiveness of the test
078    SpaceQuotaHelperForTests.updateConfigForQuotas(conf);
079    conf.setInt(QuotaObserverChore.REGION_REPORT_RETENTION_DURATION_KEY, 1000);
080  }
081
082  @After
083  public void tearDown() throws Exception {
084    TEST_UTIL.shutdownMiniCluster();
085  }
086
087  @Test
088  public void testReportExpiration() throws Exception {
089    Configuration conf = TEST_UTIL.getConfiguration();
090    // Send reports every 25 seconds
091    conf.setInt(RegionSizeReportingChore.REGION_SIZE_REPORTING_CHORE_PERIOD_KEY, 25000);
092    // Expire the reports after 5 seconds
093    conf.setInt(QuotaObserverChore.REGION_REPORT_RETENTION_DURATION_KEY, 5000);
094    TEST_UTIL.startMiniCluster(1);
095    // Wait till quota table onlined.
096    TEST_UTIL.waitFor(10000, new Waiter.Predicate<Exception>() {
097      @Override
098      public boolean evaluate() throws Exception {
099        return TEST_UTIL.getAdmin().tableExists(QuotaTableUtil.QUOTA_TABLE_NAME);
100      }
101    });
102
103    final String FAM1 = "f1";
104    final HMaster master = TEST_UTIL.getMiniHBaseCluster().getMaster();
105    // Wait for the master to finish initialization.
106    while (master.getMasterQuotaManager() == null) {
107      LOG.debug("MasterQuotaManager is null, waiting...");
108      Thread.sleep(500);
109    }
110    final MasterQuotaManager quotaManager = master.getMasterQuotaManager();
111
112    // Create a table
113    final TableName tn = TableName.valueOf("reportExpiration");
114    TableDescriptor tableDesc = TableDescriptorBuilder.newBuilder(tn)
115      .setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAM1)).build();
116    TEST_UTIL.getAdmin().createTable(tableDesc);
117
118    // No reports right after we created this table.
119    assertEquals(0, getRegionReportsForTable(quotaManager.snapshotRegionSizes(), tn));
120
121    // Set a quota
122    final long sizeLimit = 100L * SpaceQuotaHelperForTests.ONE_MEGABYTE;
123    final SpaceViolationPolicy violationPolicy = SpaceViolationPolicy.NO_INSERTS;
124    QuotaSettings settings = QuotaSettingsFactory.limitTableSpace(tn, sizeLimit, violationPolicy);
125    TEST_UTIL.getAdmin().setQuota(settings);
126
127    // We should get one report for the one region we have.
128    Waiter.waitFor(TEST_UTIL.getConfiguration(), 45000, 1000, new Waiter.Predicate<Exception>() {
129      @Override
130      public boolean evaluate() throws Exception {
131        int numReports = getRegionReportsForTable(quotaManager.snapshotRegionSizes(), tn);
132        LOG.debug("Saw " + numReports + " reports for " + tn + " while waiting for 1");
133        return numReports == 1;
134      }
135    });
136
137    // We should then see no reports for the single region
138    Waiter.waitFor(TEST_UTIL.getConfiguration(), 15000, 1000, new Waiter.Predicate<Exception>() {
139      @Override
140      public boolean evaluate() throws Exception {
141        int numReports = getRegionReportsForTable(quotaManager.snapshotRegionSizes(), tn);
142        LOG.debug("Saw " + numReports + " reports for " + tn + " while waiting for none");
143        return numReports == 0;
144      }
145    });
146  }
147
148  @Test
149  public void testMissingReportsRemovesQuota() throws Exception {
150    Configuration conf = TEST_UTIL.getConfiguration();
151    // Expire the reports after 5 seconds
152    conf.setInt(QuotaObserverChore.REGION_REPORT_RETENTION_DURATION_KEY, 5000);
153    TEST_UTIL.startMiniCluster(1);
154    // Wait till quota table onlined.
155    TEST_UTIL.waitFor(10000, new Waiter.Predicate<Exception>() {
156      @Override
157      public boolean evaluate() throws Exception {
158        return TEST_UTIL.getAdmin().tableExists(QuotaTableUtil.QUOTA_TABLE_NAME);
159      }
160    });
161
162    final String FAM1 = "f1";
163
164    // Create a table
165    final TableName tn = TableName.valueOf("quotaAcceptanceWithoutReports");
166    TableDescriptor tableDesc = TableDescriptorBuilder.newBuilder(tn)
167      .setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAM1)).build();
168    TEST_UTIL.getAdmin().createTable(tableDesc);
169
170    // Set a quota
171    final long sizeLimit = 1L * SpaceQuotaHelperForTests.ONE_KILOBYTE;
172    final SpaceViolationPolicy violationPolicy = SpaceViolationPolicy.NO_INSERTS;
173    QuotaSettings settings = QuotaSettingsFactory.limitTableSpace(tn, sizeLimit, violationPolicy);
174    final Admin admin = TEST_UTIL.getAdmin();
175    LOG.info("SET QUOTA");
176    admin.setQuota(settings);
177    final Connection conn = TEST_UTIL.getConnection();
178
179    // Write enough data to invalidate the quota
180    Put p = new Put(Bytes.toBytes("row1"));
181    byte[] bytes = new byte[10];
182    Arrays.fill(bytes, (byte) 2);
183    for (int i = 0; i < 200; i++) {
184      p.addColumn(Bytes.toBytes(FAM1), Bytes.toBytes("qual" + i), bytes);
185    }
186    conn.getTable(tn).put(p);
187    admin.flush(tn);
188
189    // Wait for the table to move into violation
190    Waiter.waitFor(TEST_UTIL.getConfiguration(), 30000, 1000, new Waiter.Predicate<Exception>() {
191      @Override
192      public boolean evaluate() throws Exception {
193        SpaceQuotaSnapshot snapshot = getSnapshotForTable(conn, tn);
194        if (snapshot == null) {
195          return false;
196        }
197        return snapshot.getQuotaStatus().isInViolation();
198      }
199    });
200
201    // Close the region, prevent the server from sending new status reports.
202    List<RegionInfo> regions = admin.getRegions(tn);
203    assertEquals(1, regions.size());
204    RegionInfo hri = regions.get(0);
205    admin.unassign(hri.getRegionName(), true);
206
207    // We should see this table move out of violation after the report expires.
208    Waiter.waitFor(TEST_UTIL.getConfiguration(), 30000, 1000, new Waiter.Predicate<Exception>() {
209      @Override
210      public boolean evaluate() throws Exception {
211        SpaceQuotaSnapshot snapshot = getSnapshotForTable(conn, tn);
212        if (snapshot == null) {
213          return false;
214        }
215        return !snapshot.getQuotaStatus().isInViolation();
216      }
217    });
218
219    // The QuotaObserverChore's memory should also show it not in violation.
220    final HMaster master = TEST_UTIL.getMiniHBaseCluster().getMaster();
221    QuotaSnapshotStore<TableName> tableStore =
222      master.getQuotaObserverChore().getTableSnapshotStore();
223    SpaceQuotaSnapshot snapshot = tableStore.getCurrentState(tn);
224    assertFalse("Quota should not be in violation", snapshot.getQuotaStatus().isInViolation());
225  }
226
227  private SpaceQuotaSnapshot getSnapshotForTable(Connection conn, TableName tn) throws IOException {
228    try (Table quotaTable = conn.getTable(QuotaUtil.QUOTA_TABLE_NAME);
229      ResultScanner scanner = quotaTable.getScanner(QuotaTableUtil.makeQuotaSnapshotScan())) {
230      Map<TableName, SpaceQuotaSnapshot> activeViolations = new HashMap<>();
231      for (Result result : scanner) {
232        try {
233          QuotaTableUtil.extractQuotaSnapshot(result, activeViolations);
234        } catch (IllegalArgumentException e) {
235          final String msg = "Failed to parse result for row " + Bytes.toString(result.getRow());
236          LOG.error(msg, e);
237          throw new IOException(msg, e);
238        }
239      }
240      return activeViolations.get(tn);
241    }
242  }
243
244  private int getRegionReportsForTable(Map<RegionInfo, Long> reports, TableName tn) {
245    int numReports = 0;
246    for (Entry<RegionInfo, Long> entry : reports.entrySet()) {
247      if (tn.equals(entry.getKey().getTable())) {
248        numReports++;
249      }
250    }
251    return numReports;
252  }
253}