Add TestOpenFilesWithSnapshot.java for HDFS-5283.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1532860 13f79535-47bb-0310-9956-ffa450edef68
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.hdfs.server.namenode.snapshot;
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import java.io.IOException;
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import java.util.EnumSet;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.FSDataOutputStream;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.hdfs.DFSOutputStream;
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import org.apache.hadoop.hdfs.DFSTestUtil;
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import org.apache.hadoop.hdfs.DistributedFileSystem;
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import org.apache.hadoop.hdfs.MiniDFSCluster;
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import org.apache.hadoop.hdfs.client.HdfsDataOutputStream.SyncFlag;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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public class TestOpenFilesWithSnapshot {
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private Configuration conf = new Configuration();
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MiniDFSCluster cluster = null;
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DistributedFileSystem fs = null;
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@Before
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public void setup() throws IOException {
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cluster = new MiniDFSCluster.Builder(conf).numDataNodes(3).build();
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conf.set("dfs.blocksize", "1048576");
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fs = cluster.getFileSystem();
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}
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@After
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public void teardown() throws IOException {
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if (fs != null) {
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fs.close();
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}
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if (cluster != null) {
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cluster.shutdown();
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}
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}
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@Test
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public void testUCFileDeleteWithSnapShot() throws Exception {
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Path path = new Path("/test");
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doWriteAndAbort(fs, path);
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// delete files separately
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fs.delete(new Path("/test/test/test2"), true);
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fs.delete(new Path("/test/test/test3"), true);
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cluster.restartNameNode();
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}
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@Test
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public void testParentDirWithUCFileDeleteWithSnapShot() throws Exception {
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Path path = new Path("/test");
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doWriteAndAbort(fs, path);
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// delete parent directory
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fs.delete(new Path("/test/test"), true);
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cluster.restartNameNode();
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}
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private void doWriteAndAbort(DistributedFileSystem fs, Path path)
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throws IOException {
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fs.mkdirs(path);
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fs.allowSnapshot(path);
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DFSTestUtil
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.createFile(fs, new Path("/test/test1"), 100, (short) 2, 100024L);
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DFSTestUtil
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.createFile(fs, new Path("/test/test2"), 100, (short) 2, 100024L);
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Path file = new Path("/test/test/test2");
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FSDataOutputStream out = fs.create(file);
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for (int i = 0; i < 2; i++) {
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long count = 0;
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while (count < 1048576) {
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out.writeBytes("hell");
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count += 4;
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}
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}
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((DFSOutputStream) out.getWrappedStream()).hsync(EnumSet
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.of(SyncFlag.UPDATE_LENGTH));
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DFSTestUtil.abortStream((DFSOutputStream) out.getWrappedStream());
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Path file2 = new Path("/test/test/test3");
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FSDataOutputStream out2 = fs.create(file2);
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for (int i = 0; i < 2; i++) {
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long count = 0;
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while (count < 1048576) {
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out2.writeBytes("hell");
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count += 4;
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}
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}
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((DFSOutputStream) out2.getWrappedStream()).hsync(EnumSet
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.of(SyncFlag.UPDATE_LENGTH));
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DFSTestUtil.abortStream((DFSOutputStream) out2.getWrappedStream());
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fs.createSnapshot(path, "s1");
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}
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}
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