/// <exception cref="System.IO.IOException"/>
/// <exception cref="System.Exception"/>
public virtual void DoShortCircuitReadMetaFileCorruptionTest()
{
string MethodName = GenericTestUtils.GetMethodName();
Path path1 = new Path("/" + MethodName + ".01.dat");
Path path2 = new Path("/" + MethodName + ".02.dat");
int Seed = unchecked ((int)(0xFADED));
MakeRandomTestFile(path1, BlockSize, true, Seed);
EnsureFileReplicasOnStorageType(path1, StorageType.RamDisk);
// Create another file with a replica on RAM_DISK, which evicts the first.
MakeRandomTestFile(path2, BlockSize, true, Seed);
// Sleep for a short time to allow the lazy writer thread to do its job.
Sharpen.Thread.Sleep(3 * LazyWriterIntervalSec * 1000);
TriggerBlockReport();
// Corrupt the lazy-persisted checksum file, and verify that checksum
// verification catches it.
EnsureFileReplicasOnStorageType(path1, StorageType.Default);
FilePath metaFile = cluster.GetBlockMetadataFile(0, DFSTestUtil.GetFirstBlock(fs,
path1));
MiniDFSCluster.CorruptBlock(metaFile);
exception.Expect(typeof(ChecksumException));
DFSTestUtil.ReadFileBuffer(fs, path1);
}