public override QuotaCounts ComputeQuotaUsage(BlockStoragePolicySuite bsps, byte
blockStoragePolicyId, QuotaCounts counts, bool useCache, int lastSnapshotId)
{
DirectoryWithSnapshotFeature sf = GetDirectoryWithSnapshotFeature();
// we are computing the quota usage for a specific snapshot here, i.e., the
// computation only includes files/directories that exist at the time of the
// given snapshot
if (sf != null && lastSnapshotId != Org.Apache.Hadoop.Hdfs.Server.Namenode.Snapshot.Snapshot
.CurrentStateId && !(useCache && IsQuotaSet()))
{
ReadOnlyList <INode> childrenList = GetChildrenList(lastSnapshotId);
foreach (INode child in childrenList)
{
byte childPolicyId = child.GetStoragePolicyIDForQuota(blockStoragePolicyId);
child.ComputeQuotaUsage(bsps, childPolicyId, counts, useCache, lastSnapshotId);
}
counts.AddNameSpace(1);
return(counts);
}
// compute the quota usage in the scope of the current directory tree
DirectoryWithQuotaFeature q = GetDirectoryWithQuotaFeature();
if (useCache && q != null && q.IsQuotaSet())
{
// use the cached quota
return(q.AddCurrentSpaceUsage(counts));
}
else
{
useCache = q != null && !q.IsQuotaSet() ? false : useCache;
return(ComputeDirectoryQuotaUsage(bsps, blockStoragePolicyId, counts, useCache, lastSnapshotId
));
}
}
// This is the only place that needs to use the BlockStoragePolicySuite to
// derive the intended storage type usage for quota by storage type
public sealed override QuotaCounts ComputeQuotaUsage(BlockStoragePolicySuite bsps
, byte blockStoragePolicyId, QuotaCounts counts, bool useCache, int lastSnapshotId
)
{
long nsDelta = 1;
long ssDeltaNoReplication;
short replication;
FileWithSnapshotFeature sf = GetFileWithSnapshotFeature();
if (sf != null)
{
FileDiffList fileDiffList = sf.GetDiffs();
int last = fileDiffList.GetLastSnapshotId();
if (lastSnapshotId == Org.Apache.Hadoop.Hdfs.Server.Namenode.Snapshot.Snapshot.CurrentStateId ||
last == Org.Apache.Hadoop.Hdfs.Server.Namenode.Snapshot.Snapshot.CurrentStateId)
{
ssDeltaNoReplication = StoragespaceConsumedNoReplication();
replication = GetBlockReplication();
}
else
{
if (last < lastSnapshotId)
{
ssDeltaNoReplication = ComputeFileSize(true, false);
replication = GetFileReplication();
}
else
{
int sid = fileDiffList.GetSnapshotById(lastSnapshotId);
ssDeltaNoReplication = StoragespaceConsumedNoReplication(sid);
replication = GetReplication(sid);
}
}
}
else
{
ssDeltaNoReplication = StoragespaceConsumedNoReplication();
replication = GetBlockReplication();
}
counts.AddNameSpace(nsDelta);
counts.AddStorageSpace(ssDeltaNoReplication * replication);
if (blockStoragePolicyId != BlockStoragePolicySuite.IdUnspecified)
{
BlockStoragePolicy bsp = bsps.GetPolicy(blockStoragePolicyId);
IList <StorageType> storageTypes = bsp.ChooseStorageTypes(replication);
foreach (StorageType t in storageTypes)
{
if (!t.SupportTypeQuota())
{
continue;
}
counts.AddTypeSpace(t, ssDeltaNoReplication);
}
}
return(counts);
}
/// <summary>Add quota usage for this inode excluding children.</summary>
public virtual QuotaCounts ComputeQuotaUsage4CurrentDirectory(BlockStoragePolicySuite
bsps, byte storagePolicyId, QuotaCounts counts)
{
counts.AddNameSpace(1);
// include the diff list
DirectoryWithSnapshotFeature sf = GetDirectoryWithSnapshotFeature();
if (sf != null)
{
sf.ComputeQuotaUsage4CurrentDirectory(bsps, storagePolicyId, counts);
}
return(counts);
}
public override QuotaCounts ComputeQuotaUsage(BlockStoragePolicySuite bsps, byte
blockStoragePolicyId, QuotaCounts counts, bool useCache, int lastSnapshotId)
{
counts.AddNameSpace(1);
return(counts);
}
