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* 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
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package org.apache.hadoop.hbase.regionserver;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.ThreadPoolExecutor;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
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.Admin;
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.client.RegionInfoBuilder;
import org.apache.hadoop.hbase.client.TableDescriptor;
import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
import org.apache.hadoop.hbase.executor.ExecutorType;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.testclassification.RegionServerTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.CommonFSUtils;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.ClassRule;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.TestName;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Category({MediumTests.class, RegionServerTests.class})
public class TestRegionOpen {
@ClassRule
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestRegionOpen.class);
private static final Logger LOG = LoggerFactory.getLogger(TestRegionOpen.class);
private static final int NB_SERVERS = 1;
private static final HBaseTestingUtility HTU = new HBaseTestingUtility();
@Rule
public TestName name = new TestName();
@BeforeClass
public static void before() throws Exception {
HTU.startMiniCluster(NB_SERVERS);
}
@AfterClass
public static void afterClass() throws Exception {
HTU.shutdownMiniCluster();
}
private static HRegionServer getRS() {
return HTU.getHBaseCluster().getLiveRegionServerThreads().get(0).getRegionServer();
}
@Test
public void testPriorityRegionIsOpenedWithSeparateThreadPool() throws Exception {
final TableName tableName = TableName.valueOf(TestRegionOpen.class.getSimpleName());
ThreadPoolExecutor exec = getRS().getExecutorService()
.getExecutorThreadPool(ExecutorType.RS_OPEN_PRIORITY_REGION);
long completed = exec.getCompletedTaskCount();
TableDescriptor tableDescriptor =
TableDescriptorBuilder.newBuilder(tableName).setPriority(HConstants.HIGH_QOS)
.setColumnFamily(ColumnFamilyDescriptorBuilder.of(HConstants.CATALOG_FAMILY)).build();
try (Connection connection = ConnectionFactory.createConnection(HTU.getConfiguration());
Admin admin = connection.getAdmin()) {
admin.createTable(tableDescriptor);
}
assertEquals(completed + 1, exec.getCompletedTaskCount());
}
@Test
public void testNonExistentRegionReplica() throws Exception {
final TableName tableName = TableName.valueOf(name.getMethodName());
final byte[] FAMILYNAME = Bytes.toBytes("fam");
FileSystem fs = HTU.getTestFileSystem();
Admin admin = HTU.getAdmin();
Configuration conf = HTU.getConfiguration();
Path rootDir = HTU.getDataTestDirOnTestFS();
TableDescriptor htd = TableDescriptorBuilder.newBuilder(tableName)
.setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILYNAME)).build();
admin.createTable(htd);
HTU.waitUntilNoRegionsInTransition(60000);
// Create new HRI with non-default region replica id
RegionInfo hri = RegionInfoBuilder.newBuilder(htd.getTableName())
.setStartKey(Bytes.toBytes("A")).setEndKey(Bytes.toBytes("B"))
.setRegionId(System.currentTimeMillis()).setReplicaId(2).build();
HRegionFileSystem regionFs = HRegionFileSystem.createRegionOnFileSystem(conf, fs,
CommonFSUtils.getTableDir(rootDir, hri.getTable()), hri);
Path regionDir = regionFs.getRegionDir();
try {
HRegionFileSystem.loadRegionInfoFileContent(fs, regionDir);
} catch (IOException e) {
LOG.info("Caught expected IOE due missing .regioninfo file, due: " + e.getMessage() + " skipping region open.");
// We should only have 1 region online
List<RegionInfo> regions = admin.getRegions(tableName);
LOG.info("Regions: " + regions);
if (regions.size() != 1) {
fail("Table " + tableName + " should have only one region, but got more: " + regions);
}
return;
}
fail("Should have thrown IOE when attempting to open a non-existing region.");
}
}