public virtual void TestScheduleSameBlock()
{
Configuration conf = new HdfsConfiguration();
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(4).Build();
try
{
cluster.WaitActive();
DistributedFileSystem dfs = cluster.GetFileSystem();
string file = "/testScheduleSameBlock/file";
{
FSDataOutputStream @out = dfs.Create(new Path(file));
@out.WriteChars("testScheduleSameBlock");
@out.Close();
}
Org.Apache.Hadoop.Hdfs.Server.Mover.Mover mover = NewMover(conf);
mover.Init();
Mover.Processor processor = new Mover.Processor(this);
LocatedBlock lb = dfs.GetClient().GetLocatedBlocks(file, 0).Get(0);
IList <Mover.MLocation> locations = Mover.MLocation.ToLocations(lb);
Mover.MLocation ml = locations[0];
Dispatcher.DBlock db = mover.NewDBlock(lb.GetBlock().GetLocalBlock(), locations);
IList <StorageType> storageTypes = new AList <StorageType>(Arrays.AsList(StorageType
.Default, StorageType.Default));
NUnit.Framework.Assert.IsTrue(processor.ScheduleMoveReplica(db, ml, storageTypes)
);
NUnit.Framework.Assert.IsFalse(processor.ScheduleMoveReplica(db, ml, storageTypes
));
}
finally
{
cluster.Shutdown();
}
}
private static G Get <G>(Dispatcher.StorageGroupMap <G> map, Mover.MLocation ml)
where G : Dispatcher.DDatanode.StorageGroup
{
return(map.Get(ml.datanode.GetDatanodeUuid(), ml.storageType));
}
private Dispatcher.Source GetSource(Mover.MLocation ml)
{
return(Get(sources, ml));
}
internal virtual bool ScheduleMoveReplica(Dispatcher.DBlock db, Mover.MLocation ml
, IList <StorageType> targetTypes)
{
Dispatcher.Source source = this._enclosing.storages.GetSource(ml);
return(source == null ? false : this.ScheduleMoveReplica(db, source, targetTypes));
}