| /** |
| * 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.regionserver; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.IOException; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseCommonTestingUtility; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.client.RegionInfo; |
| import org.apache.hadoop.hbase.client.RegionInfoBuilder; |
| import org.apache.hadoop.hbase.testclassification.RegionServerTests; |
| import org.apache.hadoop.hbase.testclassification.SmallTests; |
| import org.apache.hadoop.hbase.util.FSTableDescriptors; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| @Category({ RegionServerTests.class, SmallTests.class }) |
| public class TestReadAndWriteRegionInfoFile { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestReadAndWriteRegionInfoFile.class); |
| |
| private static final HBaseCommonTestingUtility UTIL = new HBaseTestingUtility(); |
| |
| private static final Configuration CONF = UTIL.getConfiguration(); |
| |
| private static FileSystem FS; |
| |
| private static Path ROOT_DIR; |
| |
| @BeforeClass |
| public static void setUp() throws IOException { |
| ROOT_DIR = UTIL.getDataTestDir(); |
| FS = ROOT_DIR.getFileSystem(CONF); |
| } |
| |
| @AfterClass |
| public static void tearDown() { |
| UTIL.cleanupTestDir(); |
| } |
| |
| @Test |
| public void testReadAndWriteRegionInfoFile() throws IOException, InterruptedException { |
| RegionInfo ri = RegionInfoBuilder.FIRST_META_REGIONINFO; |
| // Create a region. That'll write the .regioninfo file. |
| FSTableDescriptors fsTableDescriptors = new FSTableDescriptors(FS, ROOT_DIR); |
| FSTableDescriptors.tryUpdateAndGetMetaTableDescriptor(CONF, FS, ROOT_DIR); |
| HRegion r = HBaseTestingUtility.createRegionAndWAL(ri, ROOT_DIR, CONF, |
| fsTableDescriptors.get(TableName.META_TABLE_NAME)); |
| // Get modtime on the file. |
| long modtime = getModTime(r); |
| HBaseTestingUtility.closeRegionAndWAL(r); |
| Thread.sleep(1001); |
| r = HRegion.openHRegion(ROOT_DIR, ri, fsTableDescriptors.get(TableName.META_TABLE_NAME), null, |
| CONF); |
| // Ensure the file is not written for a second time. |
| long modtime2 = getModTime(r); |
| assertEquals(modtime, modtime2); |
| // Now load the file. |
| HRegionFileSystem.loadRegionInfoFileContent(r.getRegionFileSystem().getFileSystem(), |
| r.getRegionFileSystem().getRegionDir()); |
| HBaseTestingUtility.closeRegionAndWAL(r); |
| } |
| |
| private long getModTime(final HRegion r) throws IOException { |
| FileStatus[] statuses = r.getRegionFileSystem().getFileSystem().listStatus( |
| new Path(r.getRegionFileSystem().getRegionDir(), HRegionFileSystem.REGION_INFO_FILE)); |
| assertTrue(statuses != null && statuses.length == 1); |
| return statuses[0].getModificationTime(); |
| } |
| } |