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HDFS-9292. Make TestFileConcorruption independent to underlying FsDataset Implementation. (lei)

This commit is contained in:
Lei Xu 2015-10-26 16:08:06 -07:00
parent d8736eb9ca
commit 399ad00915
2 changed files with 30 additions and 38 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -1581,6 +1581,9 @@ Release 2.8.0 - UNRELEASED
HDFS-8945. Update the description about replica placement in HDFS
Architecture documentation. (Masatake Iwasaki via wang)
HDFS-9292. Make TestFileConcorruption independent to underlying FsDataset
Implementation. (lei)
OPTIMIZATIONS
HDFS-8026. Trace FSOutputSummer#writeChecksumChunks rather than

65
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileCorruption.java
View File

@ -24,20 +24,16 @@ import static org.junit.Assert.assertTrue;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.filefilter.DirectoryFileFilter;
import org.apache.commons.io.filefilter.PrefixFileFilter;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.ChecksumException;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hdfs.protocol.Block;
import org.apache.hadoop.hdfs.protocol.BlockListAsLongs;
import org.apache.hadoop.hdfs.protocol.BlockListAsLongs.BlockReportReplica;
import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
import org.apache.hadoop.hdfs.server.datanode.DataNode;
@ -45,6 +41,7 @@ import org.apache.hadoop.hdfs.server.datanode.DataNodeTestUtils;
import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
import org.apache.hadoop.hdfs.server.namenode.NameNode;
import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration;
import org.apache.hadoop.hdfs.server.protocol.DatanodeStorage;
import org.apache.hadoop.test.GenericTestUtils;
import org.apache.hadoop.test.PathUtils;
import org.apache.log4j.Level;
@ -74,17 +71,17 @@ public class TestFileCorruption {
FileSystem fs = cluster.getFileSystem();
util.createFiles(fs, "/srcdat");
// Now deliberately remove the blocks
File storageDir = cluster.getInstanceStorageDir(2, 0);
String bpid = cluster.getNamesystem().getBlockPoolId();
File data_dir = MiniDFSCluster.getFinalizedDir(storageDir, bpid);
assertTrue("data directory does not exist", data_dir.exists());
Collection<File> blocks = FileUtils.listFiles(data_dir,
new PrefixFileFilter(Block.BLOCK_FILE_PREFIX),
DirectoryFileFilter.DIRECTORY);
assertTrue("Blocks do not exist in data-dir", blocks.size() > 0);
for (File block : blocks) {
System.out.println("Deliberately removing file " + block.getName());
assertTrue("Cannot remove file.", block.delete());
DataNode dn = cluster.getDataNodes().get(2);
Map<DatanodeStorage, BlockListAsLongs> blockReports =
dn.getFSDataset().getBlockReports(bpid);
assertTrue("Blocks do not exist on data-dir", !blockReports.isEmpty());
for (BlockListAsLongs report : blockReports.values()) {
for (BlockReportReplica brr : report) {
LOG.info("Deliberately removing block {}", brr.getBlockName());
cluster.getFsDatasetTestUtils(2).getMaterializedReplica(
new ExtendedBlock(bpid, brr)).deleteData();
}
}
assertTrue("Corrupted replicas not handled properly.",
util.checkFiles(fs, "/srcdat"));
@ -110,7 +107,7 @@ public class TestFileCorruption {
// Now attempt to read the file
DataInputStream dis = fs.open(file, 512);
try {
System.out.println("A ChecksumException is expected to be logged.");
LOG.info("A ChecksumException is expected to be logged.");
dis.readByte();
} catch (ChecksumException ignore) {
//expect this exception but let any NPE get thrown
@ -137,15 +134,7 @@ public class TestFileCorruption {
// get the block
final String bpid = cluster.getNamesystem().getBlockPoolId();
File storageDir = cluster.getInstanceStorageDir(0, 0);
File dataDir = MiniDFSCluster.getFinalizedDir(storageDir, bpid);
assertTrue("Data directory does not exist", dataDir.exists());
ExtendedBlock blk = getBlock(bpid, dataDir);
if (blk == null) {
storageDir = cluster.getInstanceStorageDir(0, 1);
dataDir = MiniDFSCluster.getFinalizedDir(storageDir, bpid);
blk = getBlock(bpid, dataDir);
}
ExtendedBlock blk = getFirstBlock(cluster.getDataNodes().get(0), bpid);
assertFalse("Data directory does not contain any blocks or there was an "
+ "IO error", blk==null);
@ -173,20 +162,20 @@ public class TestFileCorruption {
//clean up
fs.delete(FILE_PATH, false);
} finally {
if (cluster != null) { cluster.shutdown(); }
if (cluster != null) {
cluster.shutdown();
}
}
}
private static ExtendedBlock getFirstBlock(DataNode dn, String bpid) {
Map<DatanodeStorage, BlockListAsLongs> blockReports =
dn.getFSDataset().getBlockReports(bpid);
for (BlockListAsLongs blockLongs : blockReports.values()) {
for (BlockReportReplica block : blockLongs) {
return new ExtendedBlock(bpid, block);
}
}
public static ExtendedBlock getBlock(String bpid, File dataDir) {
List<File> metadataFiles = MiniDFSCluster.getAllBlockMetadataFiles(dataDir);
if (metadataFiles == null || metadataFiles.isEmpty()) {
return null;
}
File metadataFile = metadataFiles.get(0);
File blockFile = Block.metaToBlockFile(metadataFile);
return new ExtendedBlock(bpid, Block.getBlockId(blockFile.getName()),
blockFile.length(), Block.getGenerationStamp(metadataFile.getName()));
}
}