public static void SetupCluster()
{
if (DomainSocket.GetLoadingFailureReason() != null)
{
return;
}
sockDir = new TemporarySocketDirectory();
HdfsConfiguration conf = new HdfsConfiguration();
conf.Set(DFSConfigKeys.DfsDomainSocketPathKey, new FilePath(sockDir.GetDir(), "TestParallelShortCircuitReadUnCached._PORT.sock"
).GetAbsolutePath());
conf.SetBoolean(DFSConfigKeys.DfsClientReadShortcircuitKey, true);
// Enabling data transfer encryption should have no effect when using
// short-circuit local reads. This is a regression test for HDFS-5353.
conf.SetBoolean(DFSConfigKeys.DfsEncryptDataTransferKey, true);
conf.SetBoolean(DFSConfigKeys.DfsBlockAccessTokenEnableKey, true);
conf.SetBoolean(DFSConfigKeys.DfsClientReadShortcircuitSkipChecksumKey, false);
conf.SetBoolean(DFSConfigKeys.DfsClientDomainSocketDataTraffic, true);
// We want to test reading from stale sockets.
conf.SetInt(DFSConfigKeys.DfsDatanodeSocketReuseKeepaliveKey, 1);
conf.SetLong(DFSConfigKeys.DfsClientSocketCacheExpiryMsecKey, 5 * 60 * 1000);
conf.SetInt(DFSConfigKeys.DfsClientSocketCacheCapacityKey, 32);
// Avoid using the FileInputStreamCache.
conf.SetInt(DFSConfigKeys.DfsClientReadShortcircuitStreamsCacheSizeKey, 0);
DomainSocket.DisableBindPathValidation();
DFSInputStream.tcpReadsDisabledForTesting = true;
SetupCluster(1, conf);
}
public virtual void TestCrcCorruption()
{
//
// default parameters
//
System.Console.Out.WriteLine("TestCrcCorruption with default parameters");
Configuration conf1 = new HdfsConfiguration();
conf1.SetInt(DFSConfigKeys.DfsBlockreportIntervalMsecKey, 3 * 1000);
DFSTestUtil util1 = new DFSTestUtil.Builder().SetName("TestCrcCorruption").SetNumFiles
(40).Build();
Thistest(conf1, util1);
//
// specific parameters
//
System.Console.Out.WriteLine("TestCrcCorruption with specific parameters");
Configuration conf2 = new HdfsConfiguration();
conf2.SetInt(DFSConfigKeys.DfsBytesPerChecksumKey, 17);
conf2.SetInt(DFSConfigKeys.DfsBlockSizeKey, 34);
DFSTestUtil util2 = new DFSTestUtil.Builder().SetName("TestCrcCorruption").SetNumFiles
(40).SetMaxSize(400).Build();
Thistest(conf2, util2);
}
/// <summary>
/// Test that when access time updates are not needed, the FSNamesystem
/// write lock is not taken by getBlockLocations.
/// </summary>
/// <remarks>
/// Test that when access time updates are not needed, the FSNamesystem
/// write lock is not taken by getBlockLocations.
/// Regression test for HDFS-3981.
/// </remarks>
/// <exception cref="System.IO.IOException"/>
public virtual void TestGetBlockLocationsOnlyUsesReadLock()
{
Configuration conf = new HdfsConfiguration();
conf.SetInt(DFSConfigKeys.DfsNamenodeAccesstimePrecisionKey, 100 * 1000);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(0).Build();
ReentrantReadWriteLock spyLock = NameNodeAdapter.SpyOnFsLock(cluster.GetNamesystem
());
try
{
// Create empty file in the FSN.
Path p = new Path("/empty-file");
DFSTestUtil.CreateFile(cluster.GetFileSystem(), p, 0, (short)1, 0L);
// getBlockLocations() should not need the write lock, since we just created
// the file (and thus its access time is already within the 100-second
// accesstime precision configured above).
MockitoUtil.DoThrowWhenCallStackMatches(new Exception("Should not need write lock"
), ".*getBlockLocations.*").When(spyLock).WriteLock();
cluster.GetFileSystem().GetFileBlockLocations(p, 0, 100);
}
finally
{
cluster.Shutdown();
}
}
/// <exception cref="System.Exception"/>
public BlockReaderTestUtil(int replicationFactor, HdfsConfiguration config)
{
this.conf = config;
conf.SetInt(DFSConfigKeys.DfsReplicationKey, replicationFactor);
cluster = new MiniDFSCluster.Builder(conf).Format(true).Build();
cluster.WaitActive();
}
public virtual void BlockLengthHintIsPropagated()
{
string MethodName = GenericTestUtils.GetMethodName();
Path path = new Path("/" + MethodName + ".dat");
Configuration conf = new HdfsConfiguration();
TestWriteBlockGetsBlockLengthHint.FsDatasetChecker.SetFactory(conf);
conf.SetLong(DFSConfigKeys.DfsBlockSizeKey, DefaultBlockLength);
conf.SetInt(DFSConfigKeys.DfsDatanodeScanPeriodHoursKey, -1);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(1).Build();
try
{
cluster.WaitActive();
// FsDatasetChecker#createRbw asserts during block creation if the test
// fails.
DFSTestUtil.CreateFile(cluster.GetFileSystem(), path, 4096, ExpectedBlockLength,
ExpectedBlockLength, (short)1, unchecked ((int)(0x1BAD5EED)));
}
finally
{
// Buffer size.
cluster.Shutdown();
}
}
public virtual void TestDisableCache()
{
HdfsConfiguration confWithoutCache = new HdfsConfiguration();
// Configure a new instance with no peer caching, ensure that it doesn't
// cache anything
confWithoutCache.SetInt(DFSConfigKeys.DfsClientSocketCacheCapacityKey, 0);
BlockReaderTestUtil util = new BlockReaderTestUtil(1, confWithoutCache);
Path testFile = new Path("/testConnCache.dat");
util.WriteFile(testFile, FileSize / 1024);
FileSystem fsWithoutCache = FileSystem.NewInstance(util.GetConf());
try
{
DFSTestUtil.ReadFile(fsWithoutCache, testFile);
NUnit.Framework.Assert.AreEqual(0, ((DistributedFileSystem)fsWithoutCache).dfs.GetClientContext
().GetPeerCache().Size());
}
finally
{
fsWithoutCache.Close();
util.Shutdown();
}
}
/// <exception cref="System.Exception"/>
public virtual void TestWriteConf()
{
Configuration conf = new HdfsConfiguration();
conf.SetInt(DFSConfigKeys.DfsBlockSizeKey, 4096);
System.Console.Out.WriteLine("Setting conf in: " + Runtime.IdentityHashCode(conf)
);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(1).Build();
FileSystem fs = null;
OutputStream os = null;
try
{
fs = cluster.GetFileSystem();
Path filePath = new Path("/testWriteConf.xml");
os = fs.Create(filePath);
StringBuilder longString = new StringBuilder();
for (int i = 0; i < 100000; i++)
{
longString.Append("hello");
}
// 500KB
conf.Set("foobar", longString.ToString());
conf.WriteXml(os);
os.Close();
os = null;
fs.Close();
fs = null;
}
finally
{
IOUtils.Cleanup(null, os, fs);
cluster.Shutdown();
}
}
/// <exception cref="System.Exception"/>
private void DoTestFSOutputSummer(string checksumType)
{
Configuration conf = new HdfsConfiguration();
conf.SetLong(DFSConfigKeys.DfsBlockSizeKey, BlockSize);
conf.SetInt(DFSConfigKeys.DfsBytesPerChecksumKey, BytesPerChecksum);
conf.Set(DFSConfigKeys.DfsChecksumTypeKey, checksumType);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(NumOfDatanodes
).Build();
fileSys = cluster.GetFileSystem();
try
{
Path file = new Path("try.dat");
Random rand = new Random(seed);
rand.NextBytes(expected);
WriteFile1(file);
WriteFile2(file);
WriteFile3(file);
}
finally
{
fileSys.Close();
cluster.Shutdown();
}
}
public virtual void TestRestartDfs()
{
Configuration conf = new HdfsConfiguration();
// Turn off persistent IPC, so that the DFSClient can survive NN restart
conf.SetInt(CommonConfigurationKeysPublic.IpcClientConnectionMaxidletimeKey, 0);
MiniDFSCluster cluster = null;
long len = 0;
FSDataOutputStream stream;
try
{
cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(3).Build();
FileSystem fs = cluster.GetFileSystem();
// Creating a file with 4096 blockSize to write multiple blocks
stream = fs.Create(FilePath, true, BlockSize, (short)1, BlockSize);
stream.Write(DataBeforeRestart);
stream.Hflush();
// Wait for at least a few blocks to get through
while (len <= BlockSize)
{
FileStatus status = fs.GetFileStatus(FilePath);
len = status.GetLen();
Sharpen.Thread.Sleep(100);
}
// explicitly do NOT close the file.
cluster.RestartNameNode();
// Check that the file has no less bytes than before the restart
// This would mean that blocks were successfully persisted to the log
FileStatus status_1 = fs.GetFileStatus(FilePath);
NUnit.Framework.Assert.IsTrue("Length too short: " + status_1.GetLen(), status_1.
GetLen() >= len);
// And keep writing (ensures that leases are also persisted correctly)
stream.Write(DataAfterRestart);
stream.Close();
// Verify that the data showed up, both from before and after the restart.
FSDataInputStream readStream = fs.Open(FilePath);
try
{
byte[] verifyBuf = new byte[DataBeforeRestart.Length];
IOUtils.ReadFully(readStream, verifyBuf, 0, verifyBuf.Length);
Assert.AssertArrayEquals(DataBeforeRestart, verifyBuf);
IOUtils.ReadFully(readStream, verifyBuf, 0, verifyBuf.Length);
Assert.AssertArrayEquals(DataAfterRestart, verifyBuf);
}
finally
{
IOUtils.CloseStream(readStream);
}
}
finally
{
if (cluster != null)
{
cluster.Shutdown();
}
}
}
public static void SetupCluster()
{
Configuration conf = new HdfsConfiguration();
conf.SetInt(DFSConfigKeys.DfsBlockSizeKey, 4096);
conf.Set("fs.hdfs.impl.disable.cache", "true");
cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(1).Build();
fs = cluster.GetFileSystem();
}
public virtual void TestLeaseExpireEmptyFiles()
{
Sharpen.Thread.UncaughtExceptionHandler oldUEH = Sharpen.Thread.GetDefaultUncaughtExceptionHandler
();
Sharpen.Thread.SetDefaultUncaughtExceptionHandler(new _UncaughtExceptionHandler_43
(this));
System.Console.Out.WriteLine("testLeaseExpireEmptyFiles start");
long leasePeriod = 1000;
int DatanodeNum = 3;
Configuration conf = new HdfsConfiguration();
conf.SetInt(DFSConfigKeys.DfsNamenodeHeartbeatRecheckIntervalKey, 1000);
conf.SetInt(DFSConfigKeys.DfsHeartbeatIntervalKey, 1);
// create cluster
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(DatanodeNum
).Build();
try
{
cluster.WaitActive();
DistributedFileSystem dfs = cluster.GetFileSystem();
// create a new file.
TestFileCreation.CreateFile(dfs, new Path("/foo"), DatanodeNum);
TestFileCreation.CreateFile(dfs, new Path("/foo2"), DatanodeNum);
TestFileCreation.CreateFile(dfs, new Path("/foo3"), DatanodeNum);
// set the soft and hard limit to be 1 second so that the
// namenode triggers lease recovery
cluster.SetLeasePeriod(leasePeriod, leasePeriod);
// wait for the lease to expire
try
{
Sharpen.Thread.Sleep(5 * leasePeriod);
}
catch (Exception)
{
}
NUnit.Framework.Assert.IsFalse(isConcurrentModificationException);
}
finally
{
Sharpen.Thread.SetDefaultUncaughtExceptionHandler(oldUEH);
cluster.Shutdown();
}
}
public virtual void HSyncEndBlock_00()
{
int preferredBlockSize = 1024;
Configuration conf = new HdfsConfiguration();
conf.SetInt(DFSConfigKeys.DfsBlockSizeKey, preferredBlockSize);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(2).Build();
DistributedFileSystem fileSystem = cluster.GetFileSystem();
FSDataOutputStream stm = null;
try
{
Path path = new Path("/" + fName);
stm = fileSystem.Create(path, true, 4096, (short)2, AppendTestUtil.BlockSize);
System.Console.Out.WriteLine("Created file " + path.ToString());
((DFSOutputStream)stm.GetWrappedStream()).Hsync(EnumSet.Of(HdfsDataOutputStream.SyncFlag
.EndBlock));
long currentFileLength = fileSystem.GetFileStatus(path).GetLen();
NUnit.Framework.Assert.AreEqual(0L, currentFileLength);
LocatedBlocks blocks = fileSystem.dfs.GetLocatedBlocks(path.ToString(), 0);
NUnit.Framework.Assert.AreEqual(0, blocks.GetLocatedBlocks().Count);
// write a block and call hsync(end_block) at the block boundary
stm.Write(new byte[preferredBlockSize]);
((DFSOutputStream)stm.GetWrappedStream()).Hsync(EnumSet.Of(HdfsDataOutputStream.SyncFlag
.EndBlock));
currentFileLength = fileSystem.GetFileStatus(path).GetLen();
NUnit.Framework.Assert.AreEqual(preferredBlockSize, currentFileLength);
blocks = fileSystem.dfs.GetLocatedBlocks(path.ToString(), 0);
NUnit.Framework.Assert.AreEqual(1, blocks.GetLocatedBlocks().Count);
// call hsync then call hsync(end_block) immediately
stm.Write(new byte[preferredBlockSize / 2]);
stm.Hsync();
((DFSOutputStream)stm.GetWrappedStream()).Hsync(EnumSet.Of(HdfsDataOutputStream.SyncFlag
.EndBlock));
currentFileLength = fileSystem.GetFileStatus(path).GetLen();
NUnit.Framework.Assert.AreEqual(preferredBlockSize + preferredBlockSize / 2, currentFileLength
);
blocks = fileSystem.dfs.GetLocatedBlocks(path.ToString(), 0);
NUnit.Framework.Assert.AreEqual(2, blocks.GetLocatedBlocks().Count);
stm.Write(new byte[preferredBlockSize / 4]);
stm.Hsync();
currentFileLength = fileSystem.GetFileStatus(path).GetLen();
NUnit.Framework.Assert.AreEqual(preferredBlockSize + preferredBlockSize / 2 + preferredBlockSize
/ 4, currentFileLength);
blocks = fileSystem.dfs.GetLocatedBlocks(path.ToString(), 0);
NUnit.Framework.Assert.AreEqual(3, blocks.GetLocatedBlocks().Count);
}
finally
{
IOUtils.Cleanup(null, stm, fileSystem);
if (cluster != null)
{
cluster.Shutdown();
}
}
}
public virtual void TestDeprecatedKeys()
{
Configuration conf = new HdfsConfiguration();
conf.Set("topology.script.file.name", "xyz");
string scriptFile = conf.Get(DFSConfigKeys.NetTopologyScriptFileNameKey);
NUnit.Framework.Assert.IsTrue(scriptFile.Equals("xyz"));
conf.SetInt("dfs.replication.interval", 1);
string alpha = DFSConfigKeys.DfsNamenodeReplicationIntervalKey;
int repInterval = conf.GetInt(DFSConfigKeys.DfsNamenodeReplicationIntervalKey, 3);
NUnit.Framework.Assert.IsTrue(repInterval == 1);
}
public static void SetUp()
{
ClearBaseDir();
Configuration conf = new HdfsConfiguration();
conf.SetInt(DFSConfigKeys.DfsDatanodeHttpsPortKey, 0);
conf.Set(DFSConfigKeys.DfsDatanodeAddressKey, "localhost:0");
conf.Set(DFSConfigKeys.DfsDatanodeIpcAddressKey, "localhost:0");
conf.Set(DFSConfigKeys.DfsDatanodeHttpAddressKey, "localhost:0");
cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(0).Build();
cluster.WaitActive();
}
public virtual void HSyncEndBlock_02()
{
Configuration conf = new HdfsConfiguration();
int customPerChecksumSize = 512;
int customBlockSize = customPerChecksumSize * 3;
// Modify defaul filesystem settings
conf.SetInt(DFSConfigKeys.DfsBytesPerChecksumKey, customPerChecksumSize);
conf.SetLong(DFSConfigKeys.DfsBlockSizeKey, customBlockSize);
DoTheJob(conf, fName, customBlockSize, (short)2, true, EnumSet.Of(HdfsDataOutputStream.SyncFlag
.EndBlock));
}
public virtual void HFlush_03()
{
Configuration conf = new HdfsConfiguration();
int customPerChecksumSize = 400;
int customBlockSize = customPerChecksumSize * 3;
// Modify defaul filesystem settings
conf.SetInt(DFSConfigKeys.DfsBytesPerChecksumKey, customPerChecksumSize);
conf.SetLong(DFSConfigKeys.DfsBlockSizeKey, customBlockSize);
DoTheJob(conf, fName, customBlockSize, (short)2, false, EnumSet.NoneOf <HdfsDataOutputStream.SyncFlag
>());
}
public virtual void TestRestartWithPartialBlockHflushed()
{
Configuration conf = new HdfsConfiguration();
// Turn off persistent IPC, so that the DFSClient can survive NN restart
conf.SetInt(CommonConfigurationKeysPublic.IpcClientConnectionMaxidletimeKey, 0);
MiniDFSCluster cluster = null;
FSDataOutputStream stream;
try
{
cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(3).Build();
FileSystem fs = cluster.GetFileSystem();
NameNode.GetAddress(conf).Port;
// Creating a file with 4096 blockSize to write multiple blocks
stream = fs.Create(FilePath, true, BlockSize, (short)1, BlockSize);
stream.Write(DataBeforeRestart);
stream.Write(unchecked ((byte)1));
stream.Hflush();
// explicitly do NOT close the file before restarting the NN.
cluster.RestartNameNode();
// this will fail if the final block of the file is prematurely COMPLETEd
stream.Write(unchecked ((byte)2));
stream.Hflush();
stream.Close();
NUnit.Framework.Assert.AreEqual(DataBeforeRestart.Length + 2, fs.GetFileStatus(FilePath
).GetLen());
FSDataInputStream readStream = fs.Open(FilePath);
try
{
byte[] verifyBuf = new byte[DataBeforeRestart.Length + 2];
IOUtils.ReadFully(readStream, verifyBuf, 0, verifyBuf.Length);
byte[] expectedBuf = new byte[DataBeforeRestart.Length + 2];
System.Array.Copy(DataBeforeRestart, 0, expectedBuf, 0, DataBeforeRestart.Length);
System.Array.Copy(new byte[] { 1, 2 }, 0, expectedBuf, DataBeforeRestart.Length,
2);
Assert.AssertArrayEquals(expectedBuf, verifyBuf);
}
finally
{
IOUtils.CloseStream(readStream);
}
}
finally
{
if (cluster != null)
{
cluster.Shutdown();
}
}
}
public virtual void TestAppend2AfterSoftLimit()
{
Configuration conf = new HdfsConfiguration();
conf.SetInt(DFSConfigKeys.DfsReplicationKey, 1);
//Set small soft-limit for lease
long softLimit = 1L;
long hardLimit = 9999999L;
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(1).Build();
cluster.SetLeasePeriod(softLimit, hardLimit);
cluster.WaitActive();
DistributedFileSystem fs = cluster.GetFileSystem();
DistributedFileSystem fs2 = new DistributedFileSystem();
fs2.Initialize(fs.GetUri(), conf);
Path testPath = new Path("/testAppendAfterSoftLimit");
byte[] fileContents = AppendTestUtil.InitBuffer(32);
// create a new file without closing
FSDataOutputStream @out = fs.Create(testPath);
@out.Write(fileContents);
//Wait for > soft-limit
Sharpen.Thread.Sleep(250);
try
{
FSDataOutputStream appendStream2 = fs2.Append(testPath, EnumSet.Of(CreateFlag.Append
, CreateFlag.NewBlock), 4096, null);
appendStream2.Write(fileContents);
appendStream2.Close();
NUnit.Framework.Assert.AreEqual(fileContents.Length, fs.GetFileStatus(testPath).GetLen
());
// make sure we now have 1 block since the first writer was revoked
LocatedBlocks blks = fs.GetClient().GetLocatedBlocks(testPath.ToString(), 0L);
NUnit.Framework.Assert.AreEqual(1, blks.GetLocatedBlocks().Count);
foreach (LocatedBlock blk in blks.GetLocatedBlocks())
{
NUnit.Framework.Assert.AreEqual(fileContents.Length, blk.GetBlockSize());
}
}
finally
{
fs.Close();
fs2.Close();
cluster.Shutdown();
}
}
/// <summary>
/// Tests the fileLength when we sync the file and restart the cluster and
/// Datanodes not report to Namenode yet.
/// </summary>
/// <exception cref="System.Exception"/>
public virtual void TestFileLengthWithHSyncAndClusterRestartWithOutDNsRegister()
{
Configuration conf = new HdfsConfiguration();
// create cluster
conf.SetInt(DFSConfigKeys.DfsBlockSizeKey, 512);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(2).Build();
HdfsDataInputStream @in = null;
try
{
Path path = new Path("/tmp/TestFileLengthOnClusterRestart", "test");
DistributedFileSystem dfs = cluster.GetFileSystem();
FSDataOutputStream @out = dfs.Create(path);
int fileLength = 1030;
@out.Write(new byte[fileLength]);
@out.Hsync();
cluster.RestartNameNode();
cluster.WaitActive();
@in = (HdfsDataInputStream)dfs.Open(path, 1024);
// Verify the length when we just restart NN. DNs will register
// immediately.
NUnit.Framework.Assert.AreEqual(fileLength, @in.GetVisibleLength());
cluster.ShutdownDataNodes();
cluster.RestartNameNode(false);
// This is just for ensuring NN started.
VerifyNNIsInSafeMode(dfs);
try
{
@in = (HdfsDataInputStream)dfs.Open(path);
NUnit.Framework.Assert.Fail("Expected IOException");
}
catch (IOException e)
{
NUnit.Framework.Assert.IsTrue(e.GetLocalizedMessage().IndexOf("Name node is in safe mode"
) >= 0);
}
}
finally
{
if (null != @in)
{
@in.Close();
}
cluster.Shutdown();
}
}
public virtual void TestPipelineHeartbeat()
{
int DatanodeNum = 2;
int fileLen = 6;
Configuration conf = new HdfsConfiguration();
int timeout = 2000;
conf.SetInt(DFSConfigKeys.DfsClientSocketTimeoutKey, timeout);
Path p = new Path("/pipelineHeartbeat/foo");
System.Console.Out.WriteLine("p=" + p);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(DatanodeNum
).Build();
try
{
DistributedFileSystem fs = cluster.GetFileSystem();
byte[] fileContents = AppendTestUtil.InitBuffer(fileLen);
// create a new file.
FSDataOutputStream stm = AppendTestUtil.CreateFile(fs, p, DatanodeNum);
stm.Write(fileContents, 0, 1);
Sharpen.Thread.Sleep(timeout);
stm.Hflush();
System.Console.Out.WriteLine("Wrote 1 byte and hflush " + p);
// write another byte
Sharpen.Thread.Sleep(timeout);
stm.Write(fileContents, 1, 1);
stm.Hflush();
stm.Write(fileContents, 2, 1);
Sharpen.Thread.Sleep(timeout);
stm.Hflush();
stm.Write(fileContents, 3, 1);
Sharpen.Thread.Sleep(timeout);
stm.Write(fileContents, 4, 1);
stm.Hflush();
stm.Write(fileContents, 5, 1);
Sharpen.Thread.Sleep(timeout);
stm.Close();
// verify that entire file is good
AppendTestUtil.CheckFullFile(fs, p, fileLen, fileContents, "Failed to slowly write to a file"
);
}
finally
{
cluster.Shutdown();
}
}
public virtual void TestRestartWithAppend()
{
Configuration conf = new HdfsConfiguration();
// Turn off persistent IPC, so that the DFSClient can survive NN restart
conf.SetInt(CommonConfigurationKeysPublic.IpcClientConnectionMaxidletimeKey, 0);
MiniDFSCluster cluster = null;
FSDataOutputStream stream;
try
{
cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(3).Build();
FileSystem fs = cluster.GetFileSystem();
NameNode.GetAddress(conf).Port;
// Creating a file with 4096 blockSize to write multiple blocks
stream = fs.Create(FilePath, true, BlockSize, (short)1, BlockSize);
stream.Write(DataBeforeRestart, 0, DataBeforeRestart.Length / 2);
stream.Close();
stream = fs.Append(FilePath, BlockSize);
stream.Write(DataBeforeRestart, DataBeforeRestart.Length / 2, DataBeforeRestart.Length
/ 2);
stream.Close();
NUnit.Framework.Assert.AreEqual(DataBeforeRestart.Length, fs.GetFileStatus(FilePath
).GetLen());
cluster.RestartNameNode();
NUnit.Framework.Assert.AreEqual(DataBeforeRestart.Length, fs.GetFileStatus(FilePath
).GetLen());
FSDataInputStream readStream = fs.Open(FilePath);
try
{
byte[] verifyBuf = new byte[DataBeforeRestart.Length];
IOUtils.ReadFully(readStream, verifyBuf, 0, verifyBuf.Length);
Assert.AssertArrayEquals(DataBeforeRestart, verifyBuf);
}
finally
{
IOUtils.CloseStream(readStream);
}
}
finally
{
if (cluster != null)
{
cluster.Shutdown();
}
}
}
public virtual void TestPipelineRecoveryForLastBlock()
{
DFSClientFaultInjector faultInjector = Org.Mockito.Mockito.Mock <DFSClientFaultInjector
>();
DFSClientFaultInjector oldInjector = DFSClientFaultInjector.instance;
DFSClientFaultInjector.instance = faultInjector;
Configuration conf = new HdfsConfiguration();
conf.SetInt(DFSConfigKeys.DfsClientBlockWriteLocatefollowingblockRetriesKey, 3);
MiniDFSCluster cluster = null;
try
{
int numDataNodes = 3;
cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(numDataNodes).Build();
cluster.WaitActive();
FileSystem fileSys = cluster.GetFileSystem();
Path file = new Path("dataprotocol1.dat");
Org.Mockito.Mockito.When(faultInjector.FailPacket()).ThenReturn(true);
DFSTestUtil.CreateFile(fileSys, file, 68000000L, (short)numDataNodes, 0L);
// At this point, NN should have accepted only valid replicas.
// Read should succeed.
FSDataInputStream @in = fileSys.Open(file);
try
{
int c = @in.Read();
}
catch (BlockMissingException)
{
// Test will fail with BlockMissingException if NN does not update the
// replica state based on the latest report.
NUnit.Framework.Assert.Fail("Block is missing because the file was closed with" +
" corrupt replicas.");
}
}
finally
{
DFSClientFaultInjector.instance = oldInjector;
if (cluster != null)
{
cluster.Shutdown();
}
}
}
public virtual void TestAppendAfterSoftLimit()
{
Configuration conf = new HdfsConfiguration();
conf.SetInt(DFSConfigKeys.DfsReplicationKey, 1);
conf.SetBoolean(DFSConfigKeys.DfsSupportAppendKey, true);
//Set small soft-limit for lease
long softLimit = 1L;
long hardLimit = 9999999L;
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(1).Build();
cluster.SetLeasePeriod(softLimit, hardLimit);
cluster.WaitActive();
FileSystem fs = cluster.GetFileSystem();
FileSystem fs2 = new DistributedFileSystem();
fs2.Initialize(fs.GetUri(), conf);
Path testPath = new Path("/testAppendAfterSoftLimit");
byte[] fileContents = AppendTestUtil.InitBuffer(32);
// create a new file without closing
FSDataOutputStream @out = fs.Create(testPath);
@out.Write(fileContents);
//Wait for > soft-limit
Sharpen.Thread.Sleep(250);
try
{
FSDataOutputStream appendStream2 = fs2.Append(testPath);
appendStream2.Write(fileContents);
appendStream2.Close();
NUnit.Framework.Assert.AreEqual(fileContents.Length, fs.GetFileStatus(testPath).GetLen
());
}
finally
{
fs.Close();
fs2.Close();
cluster.Shutdown();
}
}
public virtual void TestFSInputChecker()
{
Configuration conf = new HdfsConfiguration();
conf.SetLong(DFSConfigKeys.DfsBlockSizeKey, BlockSize);
conf.SetInt(DFSConfigKeys.DfsBytesPerChecksumKey, BytesPerSum);
rand.NextBytes(expected);
// test DFS
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).Build();
FileSystem fileSys = cluster.GetFileSystem();
try
{
TestChecker(fileSys, true);
TestChecker(fileSys, false);
TestSeekAndRead(fileSys);
}
finally
{
fileSys.Close();
cluster.Shutdown();
}
// test Local FS
fileSys = FileSystem.GetLocal(conf);
try
{
TestChecker(fileSys, true);
TestChecker(fileSys, false);
TestFileCorruption((LocalFileSystem)fileSys);
TestSeekAndRead(fileSys);
}
finally
{
fileSys.Close();
}
}
/// <exception cref="System.IO.IOException"/>
private static HdfsConfiguration GetConfiguration(TemporarySocketDirectory socketDir
)
{
HdfsConfiguration conf = new HdfsConfiguration();
if (socketDir == null)
{
conf.Set(DFSConfigKeys.DfsDomainSocketPathKey, string.Empty);
}
else
{
conf.Set(DFSConfigKeys.DfsDomainSocketPathKey, new FilePath(socketDir.GetDir(), "TestBlockReaderLocalLegacy.%d.sock"
).GetAbsolutePath());
}
conf.SetBoolean(DFSConfigKeys.DfsClientReadShortcircuitKey, true);
conf.SetBoolean(DFSConfigKeys.DfsClientUseLegacyBlockreaderlocal, true);
conf.SetBoolean(DFSConfigKeys.DfsClientReadShortcircuitSkipChecksumKey, false);
conf.Set(DFSConfigKeys.DfsBlockLocalPathAccessUserKey, UserGroupInformation.GetCurrentUser
().GetShortUserName());
conf.SetBoolean(DFSConfigKeys.DfsClientDomainSocketDataTraffic, false);
// Set short retry timeouts so this test runs faster
conf.SetInt(DFSConfigKeys.DfsClientRetryWindowBase, 10);
return(conf);
}
public virtual void TestInjection()
{
MiniDFSCluster cluster = null;
string testFile = "/replication-test-file";
Path testPath = new Path(testFile);
byte[] buffer = new byte[1024];
for (int i = 0; i < buffer.Length; i++)
{
buffer[i] = (byte)('1');
}
try
{
Configuration conf = new HdfsConfiguration();
conf.Set(DFSConfigKeys.DfsReplicationKey, Sharpen.Extensions.ToString(numDataNodes
));
conf.SetInt(DFSConfigKeys.DfsBytesPerChecksumKey, checksumSize);
SimulatedFSDataset.SetFactory(conf);
//first time format
cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(numDataNodes).Build();
cluster.WaitActive();
string bpid = cluster.GetNamesystem().GetBlockPoolId();
DFSClient dfsClient = new DFSClient(new IPEndPoint("localhost", cluster.GetNameNodePort
()), conf);
WriteFile(cluster.GetFileSystem(), testPath, numDataNodes);
WaitForBlockReplication(testFile, dfsClient.GetNamenode(), numDataNodes, 20);
IList <IDictionary <DatanodeStorage, BlockListAsLongs> > blocksList = cluster.GetAllBlockReports
(bpid);
cluster.Shutdown();
cluster = null;
/* Start the MiniDFSCluster with more datanodes since once a writeBlock
* to a datanode node fails, same block can not be written to it
* immediately. In our case some replication attempts will fail.
*/
Log.Info("Restarting minicluster");
conf = new HdfsConfiguration();
SimulatedFSDataset.SetFactory(conf);
conf.Set(DFSConfigKeys.DfsNamenodeSafemodeThresholdPctKey, "0.0f");
cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(numDataNodes * 2).Format(
false).Build();
cluster.WaitActive();
ICollection <Block> uniqueBlocks = new HashSet <Block>();
foreach (IDictionary <DatanodeStorage, BlockListAsLongs> map in blocksList)
{
foreach (BlockListAsLongs blockList in map.Values)
{
foreach (Block b in blockList)
{
uniqueBlocks.AddItem(new Block(b));
}
}
}
// Insert all the blocks in the first data node
Log.Info("Inserting " + uniqueBlocks.Count + " blocks");
cluster.InjectBlocks(0, uniqueBlocks, null);
dfsClient = new DFSClient(new IPEndPoint("localhost", cluster.GetNameNodePort()),
conf);
WaitForBlockReplication(testFile, dfsClient.GetNamenode(), numDataNodes, -1);
}
finally
{
if (cluster != null)
{
cluster.Shutdown();
}
}
}
public virtual void TestSimpleAppend()
{
Configuration conf = new HdfsConfiguration();
conf.SetInt(DFSConfigKeys.DfsDatanodeHandlerCountKey, 50);
fileContents = AppendTestUtil.InitBuffer(AppendTestUtil.FileSize);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).Build();
FileSystem fs = cluster.GetFileSystem();
try
{
{
// test appending to a file.
// create a new file.
Path file1 = new Path("/simpleAppend.dat");
FSDataOutputStream stm = AppendTestUtil.CreateFile(fs, file1, 1);
System.Console.Out.WriteLine("Created file simpleAppend.dat");
// write to file
int mid = 186;
// io.bytes.per.checksum bytes
System.Console.Out.WriteLine("Writing " + mid + " bytes to file " + file1);
stm.Write(fileContents, 0, mid);
stm.Close();
System.Console.Out.WriteLine("Wrote and Closed first part of file.");
// write to file
int mid2 = 607;
// io.bytes.per.checksum bytes
System.Console.Out.WriteLine("Writing " + mid + " bytes to file " + file1);
stm = fs.Append(file1);
stm.Write(fileContents, mid, mid2 - mid);
stm.Close();
System.Console.Out.WriteLine("Wrote and Closed second part of file.");
// write the remainder of the file
stm = fs.Append(file1);
// ensure getPos is set to reflect existing size of the file
NUnit.Framework.Assert.IsTrue(stm.GetPos() > 0);
System.Console.Out.WriteLine("Writing " + (AppendTestUtil.FileSize - mid2) + " bytes to file "
+ file1);
stm.Write(fileContents, mid2, AppendTestUtil.FileSize - mid2);
System.Console.Out.WriteLine("Written second part of file");
stm.Close();
System.Console.Out.WriteLine("Wrote and Closed second part of file.");
// verify that entire file is good
AppendTestUtil.CheckFullFile(fs, file1, AppendTestUtil.FileSize, fileContents, "Read 2"
);
}
{
// test appending to an non-existing file.
FSDataOutputStream @out = null;
try
{
@out = fs.Append(new Path("/non-existing.dat"));
NUnit.Framework.Assert.Fail("Expected to have FileNotFoundException");
}
catch (FileNotFoundException fnfe)
{
System.Console.Out.WriteLine("Good: got " + fnfe);
Sharpen.Runtime.PrintStackTrace(fnfe, System.Console.Out);
}
finally
{
IOUtils.CloseStream(@out);
}
}
{
// test append permission.
//set root to all writable
Path root = new Path("/");
fs.SetPermission(root, new FsPermission((short)0x1ff));
fs.Close();
// login as a different user
UserGroupInformation superuser = UserGroupInformation.GetCurrentUser();
string username = "******";
string group = "testappendgroup";
NUnit.Framework.Assert.IsFalse(superuser.GetShortUserName().Equals(username));
NUnit.Framework.Assert.IsFalse(Arrays.AsList(superuser.GetGroupNames()).Contains(
group));
UserGroupInformation appenduser = UserGroupInformation.CreateUserForTesting(username
, new string[] { group });
fs = DFSTestUtil.GetFileSystemAs(appenduser, conf);
// create a file
Path dir = new Path(root, GetType().Name);
Path foo = new Path(dir, "foo.dat");
FSDataOutputStream @out = null;
int offset = 0;
try
{
@out = fs.Create(foo);
int len = 10 + AppendTestUtil.NextInt(100);
@out.Write(fileContents, offset, len);
offset += len;
}
finally
{
IOUtils.CloseStream(@out);
}
// change dir and foo to minimal permissions.
fs.SetPermission(dir, new FsPermission((short)0x40));
fs.SetPermission(foo, new FsPermission((short)0x80));
// try append, should success
@out = null;
try
{
@out = fs.Append(foo);
int len = 10 + AppendTestUtil.NextInt(100);
@out.Write(fileContents, offset, len);
offset += len;
}
finally
{
IOUtils.CloseStream(@out);
}
// change dir and foo to all but no write on foo.
fs.SetPermission(foo, new FsPermission((short)0x17f));
fs.SetPermission(dir, new FsPermission((short)0x1ff));
// try append, should fail
@out = null;
try
{
@out = fs.Append(foo);
NUnit.Framework.Assert.Fail("Expected to have AccessControlException");
}
catch (AccessControlException ace)
{
System.Console.Out.WriteLine("Good: got " + ace);
Sharpen.Runtime.PrintStackTrace(ace, System.Console.Out);
}
finally
{
IOUtils.CloseStream(@out);
}
}
}
catch (IOException e)
{
System.Console.Out.WriteLine("Exception :" + e);
throw;
}
catch (Exception e)
{
System.Console.Out.WriteLine("Throwable :" + e);
Sharpen.Runtime.PrintStackTrace(e);
throw new IOException("Throwable : " + e);
}
finally
{
fs.Close();
cluster.Shutdown();
}
}
/// <summary>
/// Test case for data corruption during data transmission for
/// create/write.
/// </summary>
/// <remarks>
/// Test case for data corruption during data transmission for
/// create/write. To recover from corruption while writing, at
/// least two replicas are needed.
/// </remarks>
/// <exception cref="System.Exception"/>
public virtual void TestCorruptionDuringWrt()
{
Configuration conf = new HdfsConfiguration();
// Set short retry timeouts so this test runs faster
conf.SetInt(DFSConfigKeys.DfsClientRetryWindowBase, 10);
MiniDFSCluster cluster = null;
try
{
cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(10).Build();
cluster.WaitActive();
FileSystem fs = cluster.GetFileSystem();
Path file = new Path("/test_corruption_file");
FSDataOutputStream @out = fs.Create(file, true, 8192, (short)3, (long)(128 * 1024
* 1024));
byte[] data = new byte[65536];
for (int i = 0; i < 65536; i++)
{
data[i] = unchecked ((byte)(i % 256));
}
for (int i_1 = 0; i_1 < 5; i_1++)
{
@out.Write(data, 0, 65535);
}
@out.Hflush();
// corrupt the packet once
Org.Mockito.Mockito.When(faultInjector.CorruptPacket()).ThenReturn(true, false);
Org.Mockito.Mockito.When(faultInjector.UncorruptPacket()).ThenReturn(true, false);
for (int i_2 = 0; i_2 < 5; i_2++)
{
@out.Write(data, 0, 65535);
}
@out.Close();
// read should succeed
FSDataInputStream @in = fs.Open(file);
for (int c; (c = @in.Read()) != -1;)
{
}
@in.Close();
// test the retry limit
@out = fs.Create(file, true, 8192, (short)3, (long)(128 * 1024 * 1024));
// corrupt the packet once and never fix it.
Org.Mockito.Mockito.When(faultInjector.CorruptPacket()).ThenReturn(true, false);
Org.Mockito.Mockito.When(faultInjector.UncorruptPacket()).ThenReturn(false);
// the client should give up pipeline reconstruction after retries.
try
{
for (int i_3 = 0; i_3 < 5; i_3++)
{
@out.Write(data, 0, 65535);
}
@out.Close();
NUnit.Framework.Assert.Fail("Write did not fail");
}
catch (IOException ioe)
{
// we should get an ioe
DFSClient.Log.Info("Got expected exception", ioe);
}
}
finally
{
if (cluster != null)
{
cluster.Shutdown();
}
Org.Mockito.Mockito.When(faultInjector.CorruptPacket()).ThenReturn(false);
Org.Mockito.Mockito.When(faultInjector.UncorruptPacket()).ThenReturn(false);
}
}
public virtual void TestAppendRestart()
{
Configuration conf = new HdfsConfiguration();
// Turn off persistent IPC, so that the DFSClient can survive NN restart
conf.SetInt(CommonConfigurationKeysPublic.IpcClientConnectionMaxidletimeKey, 0);
MiniDFSCluster cluster = null;
FSDataOutputStream stream = null;
try
{
cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(1).Build();
FileSystem fs = cluster.GetFileSystem();
FilePath editLog = new FilePath(FSImageTestUtil.GetNameNodeCurrentDirs(cluster, 0
)[0], NNStorage.GetInProgressEditsFileName(1));
EnumMap <FSEditLogOpCodes, Holder <int> > counts;
Path p1 = new Path("/block-boundaries");
WriteAndAppend(fs, p1, BlockSize, BlockSize);
counts = FSImageTestUtil.CountEditLogOpTypes(editLog);
// OP_ADD to create file
// OP_ADD_BLOCK for first block
// OP_CLOSE to close file
// OP_APPEND to reopen file
// OP_ADD_BLOCK for second block
// OP_CLOSE to close file
NUnit.Framework.Assert.AreEqual(1, (int)counts[FSEditLogOpCodes.OpAdd].held);
NUnit.Framework.Assert.AreEqual(1, (int)counts[FSEditLogOpCodes.OpAppend].held);
NUnit.Framework.Assert.AreEqual(2, (int)counts[FSEditLogOpCodes.OpAddBlock].held);
NUnit.Framework.Assert.AreEqual(2, (int)counts[FSEditLogOpCodes.OpClose].held);
Path p2 = new Path("/not-block-boundaries");
WriteAndAppend(fs, p2, BlockSize / 2, BlockSize);
counts = FSImageTestUtil.CountEditLogOpTypes(editLog);
// OP_ADD to create file
// OP_ADD_BLOCK for first block
// OP_CLOSE to close file
// OP_APPEND to re-establish the lease
// OP_UPDATE_BLOCKS from the updatePipeline call (increments genstamp of last block)
// OP_ADD_BLOCK at the start of the second block
// OP_CLOSE to close file
// Total: 2 OP_ADDs, 1 OP_UPDATE_BLOCKS, 2 OP_ADD_BLOCKs, and 2 OP_CLOSEs
// in addition to the ones above
NUnit.Framework.Assert.AreEqual(2, (int)counts[FSEditLogOpCodes.OpAdd].held);
NUnit.Framework.Assert.AreEqual(2, (int)counts[FSEditLogOpCodes.OpAppend].held);
NUnit.Framework.Assert.AreEqual(1, (int)counts[FSEditLogOpCodes.OpUpdateBlocks].held
);
NUnit.Framework.Assert.AreEqual(2 + 2, (int)counts[FSEditLogOpCodes.OpAddBlock].held
);
NUnit.Framework.Assert.AreEqual(2 + 2, (int)counts[FSEditLogOpCodes.OpClose].held
);
cluster.RestartNameNode();
AppendTestUtil.Check(fs, p1, 2 * BlockSize);
AppendTestUtil.Check(fs, p2, 3 * BlockSize / 2);
}
finally
{
IOUtils.CloseStream(stream);
if (cluster != null)
{
cluster.Shutdown();
}
}
}
public virtual void TestDataTransferProtocol()
{
Random random = new Random();
int oneMil = 1024 * 1024;
Path file = new Path("dataprotocol.dat");
int numDataNodes = 1;
Configuration conf = new HdfsConfiguration();
conf.SetInt(DFSConfigKeys.DfsReplicationKey, numDataNodes);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(numDataNodes
).Build();
try
{
cluster.WaitActive();
datanode = cluster.GetFileSystem().GetDataNodeStats(HdfsConstants.DatanodeReportType
.Live)[0];
dnAddr = NetUtils.CreateSocketAddr(datanode.GetXferAddr());
FileSystem fileSys = cluster.GetFileSystem();
int fileLen = Math.Min(conf.GetInt(DFSConfigKeys.DfsBlockSizeKey, 4096), 4096);
CreateFile(fileSys, file, fileLen);
// get the first blockid for the file
ExtendedBlock firstBlock = DFSTestUtil.GetFirstBlock(fileSys, file);
string poolId = firstBlock.GetBlockPoolId();
long newBlockId = firstBlock.GetBlockId() + 1;
recvBuf.Reset();
sendBuf.Reset();
// bad version
recvOut.WriteShort((short)(DataTransferProtocol.DataTransferVersion - 1));
sendOut.WriteShort((short)(DataTransferProtocol.DataTransferVersion - 1));
SendRecvData("Wrong Version", true);
// bad ops
sendBuf.Reset();
sendOut.WriteShort((short)DataTransferProtocol.DataTransferVersion);
sendOut.WriteByte(OP.WriteBlock.code - 1);
SendRecvData("Wrong Op Code", true);
/* Test OP_WRITE_BLOCK */
sendBuf.Reset();
DataChecksum badChecksum = Org.Mockito.Mockito.Spy(DefaultChecksum);
Org.Mockito.Mockito.DoReturn(-1).When(badChecksum).GetBytesPerChecksum();
WriteBlock(poolId, newBlockId, badChecksum);
recvBuf.Reset();
SendResponse(DataTransferProtos.Status.Error, null, null, recvOut);
SendRecvData("wrong bytesPerChecksum while writing", true);
sendBuf.Reset();
recvBuf.Reset();
WriteBlock(poolId, ++newBlockId, DefaultChecksum);
PacketHeader hdr = new PacketHeader(4, 0, 100, false, -1 - random.Next(oneMil), false
);
// size of packet
// offset in block,
// seqno
// last packet
// bad datalen
hdr.Write(sendOut);
SendResponse(DataTransferProtos.Status.Success, string.Empty, null, recvOut);
new PipelineAck(100, new int[] { PipelineAck.CombineHeader(PipelineAck.ECN.Disabled
, DataTransferProtos.Status.Error) }).Write(recvOut);
SendRecvData("negative DATA_CHUNK len while writing block " + newBlockId, true);
// test for writing a valid zero size block
sendBuf.Reset();
recvBuf.Reset();
WriteBlock(poolId, ++newBlockId, DefaultChecksum);
hdr = new PacketHeader(8, 0, 100, true, 0, false);
// size of packet
// OffsetInBlock
// sequencenumber
// lastPacketInBlock
// chunk length
hdr.Write(sendOut);
sendOut.WriteInt(0);
// zero checksum
sendOut.Flush();
//ok finally write a block with 0 len
SendResponse(DataTransferProtos.Status.Success, string.Empty, null, recvOut);
new PipelineAck(100, new int[] { PipelineAck.CombineHeader(PipelineAck.ECN.Disabled
, DataTransferProtos.Status.Success) }).Write(recvOut);
SendRecvData("Writing a zero len block blockid " + newBlockId, false);
/* Test OP_READ_BLOCK */
string bpid = cluster.GetNamesystem().GetBlockPoolId();
ExtendedBlock blk = new ExtendedBlock(bpid, firstBlock.GetLocalBlock());
long blkid = blk.GetBlockId();
// bad block id
sendBuf.Reset();
recvBuf.Reset();
blk.SetBlockId(blkid - 1);
sender.ReadBlock(blk, BlockTokenSecretManager.DummyToken, "cl", 0L, fileLen, true
, CachingStrategy.NewDefaultStrategy());
SendRecvData("Wrong block ID " + newBlockId + " for read", false);
// negative block start offset -1L
sendBuf.Reset();
blk.SetBlockId(blkid);
sender.ReadBlock(blk, BlockTokenSecretManager.DummyToken, "cl", -1L, fileLen, true
, CachingStrategy.NewDefaultStrategy());
SendRecvData("Negative start-offset for read for block " + firstBlock.GetBlockId(
), false);
// bad block start offset
sendBuf.Reset();
sender.ReadBlock(blk, BlockTokenSecretManager.DummyToken, "cl", fileLen, fileLen,
true, CachingStrategy.NewDefaultStrategy());
SendRecvData("Wrong start-offset for reading block " + firstBlock.GetBlockId(), false
);
// negative length is ok. Datanode assumes we want to read the whole block.
recvBuf.Reset();
((DataTransferProtos.BlockOpResponseProto)DataTransferProtos.BlockOpResponseProto
.NewBuilder().SetStatus(DataTransferProtos.Status.Success).SetReadOpChecksumInfo
(DataTransferProtos.ReadOpChecksumInfoProto.NewBuilder().SetChecksum(DataTransferProtoUtil
.ToProto(DefaultChecksum)).SetChunkOffset(0L)).Build()).WriteDelimitedTo(recvOut
);
sendBuf.Reset();
sender.ReadBlock(blk, BlockTokenSecretManager.DummyToken, "cl", 0L, -1L - random.
Next(oneMil), true, CachingStrategy.NewDefaultStrategy());
SendRecvData("Negative length for reading block " + firstBlock.GetBlockId(), false
);
// length is more than size of block.
recvBuf.Reset();
SendResponse(DataTransferProtos.Status.Error, null, "opReadBlock " + firstBlock +
" received exception java.io.IOException: " + "Offset 0 and length 4097 don't match block "
+ firstBlock + " ( blockLen 4096 )", recvOut);
sendBuf.Reset();
sender.ReadBlock(blk, BlockTokenSecretManager.DummyToken, "cl", 0L, fileLen + 1,
true, CachingStrategy.NewDefaultStrategy());
SendRecvData("Wrong length for reading block " + firstBlock.GetBlockId(), false);
//At the end of all this, read the file to make sure that succeeds finally.
sendBuf.Reset();
sender.ReadBlock(blk, BlockTokenSecretManager.DummyToken, "cl", 0L, fileLen, true
, CachingStrategy.NewDefaultStrategy());
ReadFile(fileSys, file, fileLen);
}
finally
{
cluster.Shutdown();
}
}
