| /** |
| * 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.master; |
| |
| import java.io.IOException; |
| import java.util.Optional; |
| |
| 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.client.RegionInfo; |
| import org.apache.hadoop.hbase.coprocessor.CoprocessorHost; |
| import org.apache.hadoop.hbase.coprocessor.ObserverContext; |
| import org.apache.hadoop.hbase.coprocessor.RegionCoprocessor; |
| import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment; |
| import org.apache.hadoop.hbase.coprocessor.RegionObserver; |
| import org.apache.hadoop.hbase.testclassification.LargeTests; |
| import org.apache.hadoop.hbase.testclassification.MasterTests; |
| 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; |
| |
| @Category({ MasterTests.class, LargeTests.class }) |
| public class TestMasterHandlerFullWhenTransitRegion { |
| |
| private static Logger LOG = LoggerFactory |
| .getLogger(TestMasterHandlerFullWhenTransitRegion.class.getName()); |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestMasterHandlerFullWhenTransitRegion.class); |
| |
| private static final HBaseTestingUtility UTIL = new HBaseTestingUtility(); |
| |
| private static final String TABLENAME = "table"; |
| |
| @BeforeClass |
| public static void setUp() throws Exception { |
| UTIL.getConfiguration().setStrings(CoprocessorHost.REGION_COPROCESSOR_CONF_KEY, |
| DelayOpenCP.class.getName()); |
| //set handler number to 1. |
| UTIL.getConfiguration().setInt(HConstants.REGION_SERVER_HANDLER_COUNT, 1); |
| UTIL.startMiniCluster(2); |
| UTIL.createTable(TableName.valueOf(TABLENAME), "fa"); |
| } |
| |
| @Test |
| public void test() throws Exception { |
| RegionInfo regionInfo = UTIL.getAdmin().getRegions(TableName.valueOf(TABLENAME)).get(0); |
| //See HBASE-21754 |
| //There is Only one handler, if ReportRegionStateTransitionRequest executes in the same kind |
| // of thread with moveRegion, it will lock each other. Making the move operation can not finish. |
| UTIL.getAdmin().move(regionInfo.getEncodedNameAsBytes()); |
| LOG.info("Region move complete"); |
| } |
| |
| |
| /** |
| * Make open region very slow |
| */ |
| public static class DelayOpenCP implements RegionCoprocessor, RegionObserver { |
| |
| @Override |
| public void preOpen(ObserverContext<RegionCoprocessorEnvironment> c) throws IOException { |
| try { |
| if (!c.getEnvironment().getRegion().getRegionInfo().getTable().isSystemTable()) { |
| LOG.info("begin to sleep"); |
| Thread.sleep(10000); |
| LOG.info("finish sleep"); |
| } |
| } catch (Throwable t) { |
| |
| } |
| } |
| |
| @Override |
| public Optional<RegionObserver> getRegionObserver() { |
| return Optional.of(this); |
| } |
| } |
| |
| } |