> GetAllPendingReplications()
{
LinkedListMultimap <DatanodeStorageInfo, DatanodeDescriptor.BlockTargetPair> repls
= LinkedListMultimap.Create();
foreach (DatanodeDescriptor dn in nodes)
{
IList <DatanodeDescriptor.BlockTargetPair> thisRepls = dn.GetReplicationCommand(10
);
if (thisRepls != null)
{
foreach (DatanodeStorageInfo storage in dn.GetStorageInfos())
{
repls.PutAll(storage, thisRepls);
}
}
}
return(repls);
}
private DatanodeStorageInfo[] ScheduleSingleReplication(Block block)
{
// list for priority 1
IList <Block> list_p1 = new AList <Block>();
list_p1.AddItem(block);
// list of lists for each priority
IList <IList <Block> > list_all = new AList <IList <Block> >();
list_all.AddItem(new AList <Block>());
// for priority 0
list_all.AddItem(list_p1);
// for priority 1
NUnit.Framework.Assert.AreEqual("Block not initially pending replication", 0, bm.
pendingReplications.GetNumReplicas(block));
NUnit.Framework.Assert.AreEqual("computeReplicationWork should indicate replication is needed"
, 1, bm.ComputeReplicationWorkForBlocks(list_all));
NUnit.Framework.Assert.IsTrue("replication is pending after work is computed", bm
.pendingReplications.GetNumReplicas(block) > 0);
LinkedListMultimap <DatanodeStorageInfo, DatanodeDescriptor.BlockTargetPair> repls
= GetAllPendingReplications();
NUnit.Framework.Assert.AreEqual(1, repls.Size());
KeyValuePair <DatanodeStorageInfo, DatanodeDescriptor.BlockTargetPair> repl = repls
.Entries().GetEnumerator().Next();
DatanodeStorageInfo[] targets = repl.Value.targets;
DatanodeStorageInfo[] pipeline = new DatanodeStorageInfo[1 + targets.Length];
pipeline[0] = repl.Key;
System.Array.Copy(targets, 0, pipeline, 1, targets.Length);
return(pipeline);
}
