| /* |
| * 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.server.master.balancer; |
| |
| import static org.easymock.EasyMock.expect; |
| import static org.easymock.EasyMock.replay; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Set; |
| |
| import org.apache.accumulo.core.conf.ConfigurationCopy; |
| import org.apache.accumulo.core.data.TableId; |
| import org.apache.accumulo.core.dataImpl.KeyExtent; |
| import org.apache.accumulo.core.metadata.TServerInstance; |
| import org.apache.accumulo.core.tabletserver.thrift.TabletStats; |
| import org.apache.accumulo.fate.util.UtilWaitThread; |
| import org.apache.accumulo.server.ServerContext; |
| import org.apache.accumulo.server.master.state.TabletMigration; |
| import org.junit.Test; |
| |
| @Deprecated(since = "2.1.0") |
| public class HostRegexTableLoadBalancerReconfigurationTest |
| extends BaseHostRegexTableLoadBalancerTest { |
| |
| private Map<KeyExtent,TServerInstance> assignments = new HashMap<>(); |
| |
| @Test |
| public void testConfigurationChanges() { |
| ServerContext context1 = createMockContext(); |
| replay(context1); |
| final TestServerConfigurationFactory factory = new TestServerConfigurationFactory(context1); |
| ServerContext context2 = createMockContext(); |
| expect(context2.getConfiguration()).andReturn(factory.getSystemConfiguration()).anyTimes(); |
| expect(context2.getTableConfiguration(FOO.getId())) |
| .andReturn(factory.getTableConfiguration(FOO.getId())).anyTimes(); |
| expect(context2.getTableConfiguration(BAR.getId())) |
| .andReturn(factory.getTableConfiguration(BAR.getId())).anyTimes(); |
| expect(context2.getTableConfiguration(BAZ.getId())) |
| .andReturn(factory.getTableConfiguration(BAZ.getId())).anyTimes(); |
| replay(context2); |
| init(context2); |
| Map<KeyExtent,TServerInstance> unassigned = new HashMap<>(); |
| for (List<KeyExtent> extents : tableExtents.values()) { |
| for (KeyExtent ke : extents) { |
| unassigned.put(ke, null); |
| } |
| } |
| this.getAssignments(Collections.unmodifiableSortedMap(allTabletServers), |
| Collections.unmodifiableMap(unassigned), assignments); |
| assertEquals(15, assignments.size()); |
| // Ensure unique tservers |
| for (Entry<KeyExtent,TServerInstance> e : assignments.entrySet()) { |
| for (Entry<KeyExtent,TServerInstance> e2 : assignments.entrySet()) { |
| if (e.getKey().equals(e2.getKey())) { |
| continue; |
| } |
| if (e.getValue().equals(e2.getValue())) { |
| fail("Assignment failure. " + e.getKey() + " and " + e2.getKey() |
| + " are assigned to the same host: " + e.getValue()); |
| } |
| } |
| } |
| // Ensure assignments are correct |
| for (Entry<KeyExtent,TServerInstance> e : assignments.entrySet()) { |
| if (!tabletInBounds(e.getKey(), e.getValue())) { |
| fail("tablet not in bounds: " + e.getKey() + " -> " + e.getValue().getHost()); |
| } |
| } |
| Set<KeyExtent> migrations = new HashSet<>(); |
| List<TabletMigration> migrationsOut = new ArrayList<>(); |
| // Wait to trigger the out of bounds check which will call our version of |
| // getOnlineTabletsForTable |
| UtilWaitThread.sleep(3000); |
| this.balance(Collections.unmodifiableSortedMap(allTabletServers), migrations, migrationsOut); |
| assertEquals(0, migrationsOut.size()); |
| // Change property, simulate call by TableConfWatcher |
| |
| ((ConfigurationCopy) factory.getSystemConfiguration()) |
| .set(HostRegexTableLoadBalancer.HOST_BALANCER_PREFIX + BAR.getTableName(), "r01.*"); |
| |
| // Wait to trigger the out of bounds check and the repool check |
| UtilWaitThread.sleep(10000); |
| this.balance(Collections.unmodifiableSortedMap(allTabletServers), migrations, migrationsOut); |
| assertEquals(5, migrationsOut.size()); |
| for (TabletMigration migration : migrationsOut) { |
| assertTrue(migration.newServer.getHost().startsWith("192.168.0.1") |
| || migration.newServer.getHost().startsWith("192.168.0.2") |
| || migration.newServer.getHost().startsWith("192.168.0.3") |
| || migration.newServer.getHost().startsWith("192.168.0.4") |
| || migration.newServer.getHost().startsWith("192.168.0.5")); |
| } |
| } |
| |
| @Override |
| public List<TabletStats> getOnlineTabletsForTable(TServerInstance tserver, TableId tableId) { |
| List<TabletStats> tablets = new ArrayList<>(); |
| // Report assignment information |
| for (Entry<KeyExtent,TServerInstance> e : this.assignments.entrySet()) { |
| if (e.getValue().equals(tserver) && e.getKey().tableId().equals(tableId)) { |
| TabletStats ts = new TabletStats(); |
| ts.setExtent(e.getKey().toThrift()); |
| tablets.add(ts); |
| } |
| } |
| return tablets; |
| } |
| } |