public override void Run()
{
int i = 0;
try
{
Sleep(sleepms);
for (; running; i++)
{
Log.Info(GetName() + " writes " + i);
@out.Write(i);
@out.Hflush();
Sleep(sleepms);
}
}
catch (Exception e)
{
Log.Info(GetName() + " interrupted:" + e);
}
catch (IOException e)
{
throw new RuntimeException(GetName(), e);
}
finally
{
Log.Info(GetName() + " terminated: i=" + i);
}
}
/// <exception cref="System.Exception"/>
public virtual void TestMaxBlocksPerFileLimit()
{
Configuration conf = new HdfsConfiguration();
// Make a small block size and a low limit
long blockSize = 4096;
long numBlocks = 2;
conf.SetLong(DFSConfigKeys.DfsBlockSizeKey, blockSize);
conf.SetLong(DFSConfigKeys.DfsNamenodeMaxBlocksPerFileKey, numBlocks);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).Build();
FileSystem fs = cluster.GetFileSystem();
HdfsDataOutputStream fout = (HdfsDataOutputStream)fs.Create(new Path("/testmaxfilelimit"
));
try
{
// Write maximum number of blocks
fout.Write(new byte[(int)blockSize * (int)numBlocks]);
fout.Hflush();
// Try to write one more block
try
{
fout.Write(new byte[1]);
fout.Hflush();
System.Diagnostics.Debug.Assert(false, "Expected IOException after writing too many blocks"
);
}
catch (IOException e)
{
GenericTestUtils.AssertExceptionContains("File has reached the limit" + " on maximum number of"
, e);
}
}
finally
{
cluster.Shutdown();
}
}