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HDFS-13509. Bug fix for breakHardlinks() of ReplicaInfo/LocalReplica, and fix TestFileAppend failures on Windows. Contributed by Xiao Liang. 

(cherry picked from commit eb7fe1d588)
This commit is contained in:
Inigo Goiri 2018-04-28 09:05:30 -07:00
parent 36fc9a6939
commit ce62991648
2 changed files with 55 additions and 34 deletions
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18
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/LocalReplica.java
View File

@ -186,16 +186,18 @@ abstract public class LocalReplica extends ReplicaInfo {
final FileIoProvider fileIoProvider = getFileIoProvider();
final File tmpFile = DatanodeUtil.createFileWithExistsCheck(
getVolume(), b, DatanodeUtil.getUnlinkTmpFile(file), fileIoProvider);
try (FileInputStream in = fileIoProvider.getFileInputStream(
getVolume(), file)) {
try (FileOutputStream out = fileIoProvider.getFileOutputStream(
getVolume(), tmpFile)) {
IOUtils.copyBytes(in, out, 16 * 1024);
try {
try (FileInputStream in = fileIoProvider.getFileInputStream(
getVolume(), file)) {
try (FileOutputStream out = fileIoProvider.getFileOutputStream(
getVolume(), tmpFile)) {
IOUtils.copyBytes(in, out, 16 * 1024);
}
}
if (file.length() != tmpFile.length()) {
throw new IOException("Copy of file " + file + " size " + file.length()+
" into file " + tmpFile +
" resulted in a size of " + tmpFile.length());
throw new IOException("Copy of file " + file + " size " + file.length()
+ " into file " + tmpFile + " resulted in a size of "
+ tmpFile.length());
}
fileIoProvider.replaceFile(getVolume(), tmpFile, file);
} catch (IOException e) {

71
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileAppend.java
View File

@ -55,6 +55,7 @@ import org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetTestUtil;
import org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetUtil;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.ipc.RemoteException;
import org.apache.hadoop.test.GenericTestUtils;
import org.apache.hadoop.util.DataChecksum;
import org.apache.hadoop.util.Time;
import org.junit.Assert;
@ -120,7 +121,9 @@ public class TestFileAppend{
@Test
public void testBreakHardlinksIfNeeded() throws IOException {
Configuration conf = new HdfsConfiguration();
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();
File builderBaseDir = new File(GenericTestUtils.getRandomizedTempPath());
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf, builderBaseDir)
.build();
FileSystem fs = cluster.getFileSystem();
InetSocketAddress addr = new InetSocketAddress("localhost",
cluster.getNameNodePort());
@ -186,7 +189,9 @@ public class TestFileAppend{
public void testSimpleFlush() throws IOException {
Configuration conf = new HdfsConfiguration();
fileContents = AppendTestUtil.initBuffer(AppendTestUtil.FILE_SIZE);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();
File builderBaseDir = new File(GenericTestUtils.getRandomizedTempPath());
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf, builderBaseDir)
.build();
DistributedFileSystem fs = cluster.getFileSystem();
try {
@ -239,7 +244,9 @@ public class TestFileAppend{
public void testComplexFlush() throws IOException {
Configuration conf = new HdfsConfiguration();
fileContents = AppendTestUtil.initBuffer(AppendTestUtil.FILE_SIZE);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();
File builderBaseDir = new File(GenericTestUtils.getRandomizedTempPath());
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf, builderBaseDir)
.build();
DistributedFileSystem fs = cluster.getFileSystem();
try {
@ -286,7 +293,9 @@ public class TestFileAppend{
@Test(expected = FileNotFoundException.class)
public void testFileNotFound() throws IOException {
Configuration conf = new HdfsConfiguration();
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();
File builderBaseDir = new File(GenericTestUtils.getRandomizedTempPath());
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf, builderBaseDir)
.build();
FileSystem fs = cluster.getFileSystem();
try {
Path file1 = new Path("/nonexistingfile.dat");
@ -301,7 +310,9 @@ public class TestFileAppend{
@Test
public void testAppendTwice() throws Exception {
Configuration conf = new HdfsConfiguration();
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();
File builderBaseDir = new File(GenericTestUtils.getRandomizedTempPath());
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf, builderBaseDir)
.build();
final FileSystem fs1 = cluster.getFileSystem();
final FileSystem fs2 = AppendTestUtil.createHdfsWithDifferentUsername(conf);
try {
@ -340,7 +351,9 @@ public class TestFileAppend{
@Test
public void testAppend2Twice() throws Exception {
Configuration conf = new HdfsConfiguration();
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();
File builderBaseDir = new File(GenericTestUtils.getRandomizedTempPath());
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf, builderBaseDir)
.build();
final DistributedFileSystem fs1 = cluster.getFileSystem();
final FileSystem fs2 = AppendTestUtil.createHdfsWithDifferentUsername(conf);
try {
@ -386,8 +399,9 @@ public class TestFileAppend{
HdfsClientConfigKeys.BlockWrite.ReplaceDatanodeOnFailure.ENABLE_KEY,
false);
final MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
.numDataNodes(4).build();
File builderBaseDir = new File(GenericTestUtils.getRandomizedTempPath());
final MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf,
builderBaseDir).numDataNodes(4).build();
final DistributedFileSystem fs = cluster.getFileSystem();
try {
final Path p = new Path("/testMultipleAppend/foo");
@ -438,8 +452,9 @@ public class TestFileAppend{
final long softLimit = 1L;
final long hardLimit = 9999999L;
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).numDataNodes(1)
.build();
File builderBaseDir = new File(GenericTestUtils.getRandomizedTempPath());
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf, builderBaseDir)
.numDataNodes(1).build();
cluster.setLeasePeriod(softLimit, hardLimit);
cluster.waitActive();
@ -478,8 +493,9 @@ public class TestFileAppend{
final long softLimit = 1L;
final long hardLimit = 9999999L;
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).numDataNodes(1)
.build();
File builderBaseDir = new File(GenericTestUtils.getRandomizedTempPath());
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf, builderBaseDir)
.numDataNodes(1).build();
cluster.setLeasePeriod(softLimit, hardLimit);
cluster.waitActive();
@ -525,8 +541,9 @@ public class TestFileAppend{
Configuration conf = new HdfsConfiguration();
conf.set("dfs.client.block.write.replace-datanode-on-failure.enable",
"false");
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).numDataNodes(3)
.build();
File builderBaseDir = new File(GenericTestUtils.getRandomizedTempPath());
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf, builderBaseDir)
.numDataNodes(3).build();
DistributedFileSystem fs = null;
try {
fs = cluster.getFileSystem();
@ -578,8 +595,9 @@ public class TestFileAppend{
Configuration conf = new HdfsConfiguration();
conf.set("dfs.client.block.write.replace-datanode-on-failure.enable",
"false");
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).numDataNodes(3)
.build();
File builderBaseDir = new File(GenericTestUtils.getRandomizedTempPath());
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf, builderBaseDir)
.numDataNodes(3).build();
DistributedFileSystem fs = null;
final String hello = "hello\n";
try {
@ -650,8 +668,9 @@ public class TestFileAppend{
conf.setInt(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, 1024);
conf.setInt(DFSConfigKeys.DFS_REPLICATION_KEY, 1);
conf.setInt("dfs.min.replication", 1);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).numDataNodes(1)
.build();
File builderBaseDir = new File(GenericTestUtils.getRandomizedTempPath());
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf, builderBaseDir)
.numDataNodes(1).build();
try {
DistributedFileSystem fs = cluster.getFileSystem();
Path fileName = new Path("/appendCorruptBlock");
@ -676,7 +695,9 @@ public class TestFileAppend{
conf.setInt(DFSConfigKeys.DFS_REPLICATION_KEY, 1);
conf.setInt("dfs.min.replication", 1);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();
File builderBaseDir = new File(GenericTestUtils.getRandomizedTempPath());
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf, builderBaseDir)
.build();
try {
cluster.waitActive();
DataNode dn = cluster.getDataNodes().get(0);
@ -693,9 +714,9 @@ public class TestFileAppend{
// Call FsDatasetImpl#append to append the block file,
// which converts it to a rbw replica.
ExtendedBlock block = DFSTestUtil.getFirstBlock(fs, fileName);
long newGS = block.getGenerationStamp()+1;
ReplicaHandler
replicaHandler = dataSet.append(block, newGS, initialFileLength);
long newGS = block.getGenerationStamp() + 1;
ReplicaHandler replicaHandler =
dataSet.append(block, newGS, initialFileLength);
// write data to block file
ReplicaBeingWritten rbw =
@ -711,9 +732,8 @@ public class TestFileAppend{
// update checksum file
final int smallBufferSize = DFSUtilClient.getSmallBufferSize(conf);
FsDatasetUtil.computeChecksum(
rbw.getMetaFile(), rbw.getMetaFile(), rbw.getBlockFile(),
smallBufferSize, conf);
FsDatasetUtil.computeChecksum(rbw.getMetaFile(), rbw.getMetaFile(),
rbw.getBlockFile(), smallBufferSize, conf);
// read the block
// the DataNode BlockSender should read from the rbw replica's in-memory
@ -725,5 +745,4 @@ public class TestFileAppend{
cluster.shutdown();
}
}
}