sandeepvinayak commented on a change in pull request #1898: URL: https://github.com/apache/hbase/pull/1898#discussion_r442029346
########## File path: hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestExceptionInAssignRegion.java ########## @@ -0,0 +1,130 @@ +/** + * 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.assignment; + +import java.util.Optional; +import java.util.concurrent.CountDownLatch; +import org.apache.hadoop.hbase.HBaseClassTestRule; +import org.apache.hadoop.hbase.HBaseTestingUtility; +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.procedure2.ProcedureExecutor; +import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility; +import org.apache.hadoop.hbase.regionserver.HRegionServer; +import org.apache.hadoop.hbase.testclassification.MasterTests; +import org.apache.hadoop.hbase.testclassification.MediumTests; +import org.apache.hadoop.hbase.util.Bytes; +import org.apache.hadoop.hbase.util.JVMClusterUtil; +import org.junit.AfterClass; +import org.junit.Assert; +import org.junit.BeforeClass; +import org.junit.ClassRule; +import org.junit.Test; +import org.junit.experimental.categories.Category; + +@Category({ MasterTests.class, MediumTests.class }) +public class TestExceptionInAssignRegion { + + @ClassRule + public static final HBaseClassTestRule CLASS_RULE = + HBaseClassTestRule.forClass(TestExceptionInAssignRegion.class); + + private static final HBaseTestingUtility UTIL = new HBaseTestingUtility(); + + private static final TableName TABLE_NAME = TableName.valueOf("test"); + + private static final CountDownLatch countDownLatch = new CountDownLatch(2); + + private static final byte[] CF = Bytes.toBytes("cf"); + + @BeforeClass + public static void setUp() throws Exception { + UTIL.getConfiguration().setStrings(CoprocessorHost.REGION_COPROCESSOR_CONF_KEY, + ThrowInOpenCP.class.getName()); + UTIL.startMiniCluster(3); + UTIL.getAdmin().balancerSwitch(false, true); + UTIL.createTable(TABLE_NAME, CF); + UTIL.waitTableAvailable(TABLE_NAME); + } + + @AfterClass + public static void tearDown() throws Exception { + UTIL.shutdownMiniCluster(); + } + + @Test + public void testExceptionInAssignRegion() { + ProcedureExecutor procedureExecutor = + UTIL.getMiniHBaseCluster().getMaster().getMasterProcedureExecutor(); + + JVMClusterUtil.RegionServerThread rsThread = null; + for (JVMClusterUtil.RegionServerThread t : UTIL.getMiniHBaseCluster() + .getRegionServerThreads()) { + if (!t.getRegionServer().getRegions(TABLE_NAME).isEmpty()) { + rsThread = t; + break; + } + } + // find the rs and hri of the table + HRegionServer rs = rsThread.getRegionServer(); + RegionInfo hri = rs.getRegions(TABLE_NAME).get(0).getRegionInfo(); + TransitRegionStateProcedure assignRegionProcedure = TransitRegionStateProcedure.move( + UTIL.getMiniHBaseCluster().getMaster().getMasterProcedureExecutor().getEnvironment(), + hri, null); + RegionStateNode regionNode = UTIL.getMiniHBaseCluster().getMaster().getAssignmentManager() + .getRegionStates().getOrCreateRegionStateNode(hri); + regionNode.setProcedure(assignRegionProcedure); + countDownLatch.countDown(); + long prodId = procedureExecutor.submitProcedure(assignRegionProcedure); + ProcedureTestingUtility.waitProcedure(procedureExecutor, prodId); + + Assert.assertEquals("Should be two RS since other is aborted", 2, + UTIL.getMiniHBaseCluster().getLiveRegionServerThreads().size()); + Assert.assertNull("RIT Map doesn't have correct value", + getRegionServer(0).getRegionsInTransitionInRS().get(hri.getEncodedNameAsBytes())); + Assert.assertNull("RIT Map doesn't have correct value", + getRegionServer(1).getRegionsInTransitionInRS().get(hri.getEncodedNameAsBytes())); Review comment: @xcangCRM we wait for the procedure to complete. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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