| /* |
| * 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.hamcrest.CoreMatchers.instanceOf; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotEquals; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNotSame; |
| import static org.junit.Assert.fail; |
| |
| import java.io.IOException; |
| import java.util.concurrent.ExecutionException; |
| import java.util.stream.IntStream; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.HRegionLocation; |
| import org.apache.hadoop.hbase.RegionLocations; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.testclassification.ClientTests; |
| import org.apache.hadoop.hbase.testclassification.MediumTests; |
| import org.apache.hadoop.hbase.zookeeper.MiniZooKeeperCluster; |
| import org.apache.hadoop.hbase.zookeeper.ReadOnlyZKClient; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.hbase.thirdparty.com.google.common.io.Closeables; |
| |
| @Category({ MediumTests.class, ClientTests.class }) |
| public class TestZKConnectionRegistry { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestZKConnectionRegistry.class); |
| |
| static final Logger LOG = LoggerFactory.getLogger(TestZKConnectionRegistry.class); |
| static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(); |
| |
| private static ZKConnectionRegistry REGISTRY; |
| |
| @BeforeClass |
| public static void setUp() throws Exception { |
| TEST_UTIL.startMiniCluster(3); |
| HBaseTestingUtility.setReplicas(TEST_UTIL.getAdmin(), TableName.META_TABLE_NAME, 3); |
| REGISTRY = new ZKConnectionRegistry(TEST_UTIL.getConfiguration()); |
| } |
| |
| @AfterClass |
| public static void tearDown() throws Exception { |
| Closeables.close(REGISTRY, true); |
| TEST_UTIL.shutdownMiniCluster(); |
| } |
| |
| @Test |
| public void test() throws InterruptedException, ExecutionException, IOException { |
| LOG.info("STARTED TEST"); |
| String clusterId = REGISTRY.getClusterId().get(); |
| String expectedClusterId = TEST_UTIL.getHBaseCluster().getMaster().getClusterId(); |
| assertEquals("Expected " + expectedClusterId + ", found=" + clusterId, expectedClusterId, |
| clusterId); |
| assertEquals(TEST_UTIL.getHBaseCluster().getMaster().getServerName(), |
| REGISTRY.getActiveMaster().get()); |
| RegionReplicaTestHelper |
| .waitUntilAllMetaReplicasAreReady(TEST_UTIL, REGISTRY); |
| RegionLocations locs = REGISTRY.getMetaRegionLocations().get(); |
| assertEquals(3, locs.getRegionLocations().length); |
| IntStream.range(0, 3).forEach(i -> { |
| HRegionLocation loc = locs.getRegionLocation(i); |
| assertNotNull("Replica " + i + " doesn't have location", loc); |
| assertEquals(TableName.META_TABLE_NAME, loc.getRegion().getTable()); |
| assertEquals(i, loc.getRegion().getReplicaId()); |
| }); |
| } |
| |
| @Test |
| public void testIndependentZKConnections() throws IOException { |
| try (ReadOnlyZKClient zk1 = REGISTRY.getZKClient()) { |
| Configuration otherConf = new Configuration(TEST_UTIL.getConfiguration()); |
| otherConf.set(HConstants.ZOOKEEPER_QUORUM, MiniZooKeeperCluster.HOST); |
| try (ZKConnectionRegistry otherRegistry = new ZKConnectionRegistry(otherConf)) { |
| ReadOnlyZKClient zk2 = otherRegistry.getZKClient(); |
| assertNotSame("Using a different configuration / quorum should result in different " + |
| "backing zk connection.", zk1, zk2); |
| assertNotEquals( |
| "Using a different configrution / quorum should be reflected in the zk connection.", |
| zk1.getConnectString(), zk2.getConnectString()); |
| } |
| } finally { |
| LOG.info("DONE!"); |
| } |
| } |
| |
| @Test |
| public void testNoMetaAvailable() throws InterruptedException { |
| Configuration conf = new Configuration(TEST_UTIL.getConfiguration()); |
| conf.set("zookeeper.znode.metaserver", "whatever"); |
| try (ZKConnectionRegistry registry = new ZKConnectionRegistry(conf)) { |
| try { |
| registry.getMetaRegionLocations().get(); |
| fail("Should have failed since we set an incorrect meta znode prefix"); |
| } catch (ExecutionException e) { |
| assertThat(e.getCause(), instanceOf(IOException.class)); |
| } |
| } |
| } |
| } |