/*
* 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.hdfs;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fi.DataTransferTestUtil;
import org.apache.hadoop.fi.FiHFlushTestUtil;
import org.apache.hadoop.fi.FiHFlushTestUtil.DerrAction;
import org.apache.hadoop.fi.FiHFlushTestUtil.HFlushTest;
import org.apache.hadoop.fi.FiTestUtil;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import java.io.IOException;
/** Class provides basic fault injection tests according to the test plan
of HDFS-265
*/
public class TestFiHFlush {
/** Methods initializes a test and sets required actions to be used later by
* an injected advice
* @param conf mini cluster configuration
* @param methodName String representation of a test method invoking this
* method
* @param block_size needed size of file's block
* @param a is an action to be set for the set
* @throws IOException in case of any errors
*/
private static void runDiskErrorTest (final Configuration conf,
final String methodName, final int block_size, DerrAction a, int index,
boolean trueVerification)
throws IOException {
FiTestUtil.LOG.info("Running " + methodName + " ...");
final HFlushTest hft = (HFlushTest) FiHFlushTestUtil.initTest();
hft.fiCallHFlush.set(a);
hft.fiErrorOnCallHFlush.set(new DataTransferTestUtil.VerificationAction(methodName, index));
TestHFlush.doTheJob(conf, methodName, block_size, (short)3);
if (trueVerification)
assertTrue("Some of expected conditions weren't detected", hft.isSuccess());
}
/** The tests calls
* {@link #runDiskErrorTest(Configuration, String, int, DerrAction, int, boolean)}
* to make a number of writes within a block boundaries.
* Although hflush() is called the test shouldn't expect an IOException
* in this case because the invocation is happening after write() call
* is complete when pipeline doesn't exist anymore.
* Thus, injected fault won't be triggered for 0th datanode
*/
@Test
public void hFlushFi01_a() throws IOException {
final String methodName = FiTestUtil.getMethodName();
runDiskErrorTest(new HdfsConfiguration(), methodName,
AppendTestUtil.BLOCK_SIZE, new DerrAction(methodName, 0), 0, false);
}
/** The tests calls
* {@link #runDiskErrorTest(Configuration, String, int, DerrAction, int, boolean)}
* to make a number of writes across a block boundaries.
* hflush() is called after each write() during a pipeline life time.
* Thus, injected fault ought to be triggered for 0th datanode
*/
@Test
public void hFlushFi01_b() throws IOException {
final String methodName = FiTestUtil.getMethodName();
Configuration conf = new HdfsConfiguration();
int customPerChecksumSize = 512;
int customBlockSize = customPerChecksumSize * 3;
conf.setInt(DFSConfigKeys.DFS_BYTES_PER_CHECKSUM_KEY, customPerChecksumSize);
conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, customBlockSize);
runDiskErrorTest(conf, methodName,
customBlockSize, new DerrAction(methodName, 0), 0, true);
}
/** Similar to {@link #hFlushFi01_b()} but writing happens
* across block and checksum's boundaries
*/
@Test
public void hFlushFi01_c() throws Exception {
final String methodName = FiTestUtil.getMethodName();
Configuration conf = new HdfsConfiguration();
int customPerChecksumSize = 400;
int customBlockSize = customPerChecksumSize * 3;
conf.setInt(DFSConfigKeys.DFS_BYTES_PER_CHECKSUM_KEY, customPerChecksumSize);
conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, customBlockSize);
runDiskErrorTest(conf, methodName,
customBlockSize, new DerrAction(methodName, 0), 0, true);
}
/** Similar to {@link #hFlushFi01_a()} but for a pipeline's 1st datanode
*/
@Test
public void hFlushFi02_a() throws IOException {
final String methodName = FiTestUtil.getMethodName();
runDiskErrorTest(new HdfsConfiguration(), methodName,
AppendTestUtil.BLOCK_SIZE, new DerrAction(methodName, 1), 1, false);
}
/** Similar to {@link #hFlushFi01_b()} but for a pipeline's 1st datanode
*/
@Test
public void hFlushFi02_b() throws IOException {
final String methodName = FiTestUtil.getMethodName();
Configuration conf = new HdfsConfiguration();
int customPerChecksumSize = 512;
int customBlockSize = customPerChecksumSize * 3;
conf.setInt(DFSConfigKeys.DFS_BYTES_PER_CHECKSUM_KEY, customPerChecksumSize);
conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, customBlockSize);
runDiskErrorTest(conf, methodName,
customBlockSize, new DerrAction(methodName, 1), 1, true);
}
/** Similar to {@link #hFlushFi01_c()} but for a pipeline's 1st datanode
*/
@Test
public void hFlushFi02_c() throws IOException {
final String methodName = FiTestUtil.getMethodName();
Configuration conf = new HdfsConfiguration();
int customPerChecksumSize = 400;
int customBlockSize = customPerChecksumSize * 3;
conf.setInt(DFSConfigKeys.DFS_BYTES_PER_CHECKSUM_KEY, customPerChecksumSize);
conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, customBlockSize);
runDiskErrorTest(conf, methodName,
customBlockSize, new DerrAction(methodName, 1), 1, true);
}
/** Similar to {@link #hFlushFi01_a()} but for a pipeline's 2nd datanode
*/
@Test
public void hFlushFi03_a() throws IOException {
final String methodName = FiTestUtil.getMethodName();
runDiskErrorTest(new HdfsConfiguration(), methodName,
AppendTestUtil.BLOCK_SIZE, new DerrAction(methodName, 2), 2, false);
}
/** Similar to {@link #hFlushFi01_b()} but for a pipeline's 2nd datanode
*/
@Test
public void hFlushFi03_b() throws IOException {
final String methodName = FiTestUtil.getMethodName();
Configuration conf = new HdfsConfiguration();
int customPerChecksumSize = 512;
int customBlockSize = customPerChecksumSize * 3;
conf.setInt(DFSConfigKeys.DFS_BYTES_PER_CHECKSUM_KEY, customPerChecksumSize);
conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, customBlockSize);
runDiskErrorTest(conf, methodName,
customBlockSize, new DerrAction(methodName, 2), 2, true);
}
/** Similar to {@link #hFlushFi01_c()} but for a pipeline's 2nd datanode
*/
@Test
public void hFlushFi03_c() throws IOException {
final String methodName = FiTestUtil.getMethodName();
Configuration conf = new HdfsConfiguration();
int customPerChecksumSize = 400;
int customBlockSize = customPerChecksumSize * 3;
conf.setInt(DFSConfigKeys.DFS_BYTES_PER_CHECKSUM_KEY, customPerChecksumSize);
conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, customBlockSize);
runDiskErrorTest(conf, methodName,
customBlockSize, new DerrAction(methodName, 2), 2, true);
}
}