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HDFS-7811. Avoid recursive call getStoragePolicyID in INodeFile#computeQuotaUsage. Contributed by Xiaoyu Yao and Jing Zhao.

This commit is contained in:
Jing Zhao 2015-04-02 21:20:30 -07:00
parent 8d3c0f601d
commit 72f6bd4893
9 changed files with 84 additions and 37 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -877,6 +877,9 @@ Release 2.7.0 - UNRELEASED
HDFS-8008. Support client-side back off when the datanodes are congested.
(wheat9)
HDFS-7811. Avoid recursive call getStoragePolicyID in
INodeFile#computeQuotaUsage. (Xiaoyu Yao and jing9)
OPTIMIZATIONS
HDFS-7454. Reduce memory footprint for AclEntries in NameNode.

14
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImage.java
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@ -856,23 +856,27 @@ public class FSImage implements Closeable {
*/
static void updateCountForQuota(BlockStoragePolicySuite bsps,
INodeDirectory root) {
updateCountForQuotaRecursively(bsps, root, new QuotaCounts.Builder().build());
updateCountForQuotaRecursively(bsps, root.getStoragePolicyID(), root,
new QuotaCounts.Builder().build());
}
private static void updateCountForQuotaRecursively(BlockStoragePolicySuite bsps,
INodeDirectory dir, QuotaCounts counts) {
byte blockStoragePolicyId, INodeDirectory dir, QuotaCounts counts) {
final long parentNamespace = counts.getNameSpace();
final long parentStoragespace = counts.getStorageSpace();
final EnumCounters<StorageType> parentTypeSpaces = counts.getTypeSpaces();
dir.computeQuotaUsage4CurrentDirectory(bsps, counts);
dir.computeQuotaUsage4CurrentDirectory(bsps, blockStoragePolicyId, counts);
for (INode child : dir.getChildrenList(Snapshot.CURRENT_STATE_ID)) {
final byte childPolicyId = child.getStoragePolicyIDForQuota(blockStoragePolicyId);
if (child.isDirectory()) {
updateCountForQuotaRecursively(bsps, child.asDirectory(), counts);
updateCountForQuotaRecursively(bsps, childPolicyId,
child.asDirectory(), counts);
} else {
// file or symlink: count here to reduce recursive calls.
child.computeQuotaUsage(bsps, counts, false);
child.computeQuotaUsage(bsps, childPolicyId, counts, false,
Snapshot.CURRENT_STATE_ID);
}
}

29
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INode.java
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@ -505,9 +505,14 @@ public abstract class INode implements INodeAttributes, Diff.Element<byte[]> {
/**
* Count subtree {@link Quota#NAMESPACE} and {@link Quota#STORAGESPACE} usages.
* Entry point for FSDirectory where blockStoragePolicyId is given its initial
* value.
*/
public final QuotaCounts computeQuotaUsage(BlockStoragePolicySuite bsps) {
return computeQuotaUsage(bsps, new QuotaCounts.Builder().build(), true);
final byte storagePolicyId = isSymlink() ?
BlockStoragePolicySuite.ID_UNSPECIFIED : getStoragePolicyID();
return computeQuotaUsage(bsps, storagePolicyId,
new QuotaCounts.Builder().build(), true, Snapshot.CURRENT_STATE_ID);
}
/**
@ -532,6 +537,7 @@ public abstract class INode implements INodeAttributes, Diff.Element<byte[]> {
* <pre>
*
* @param bsps Block storage policy suite to calculate intended storage type usage
* @param blockStoragePolicyId block storage policy id of the current INode
* @param counts The subtree counts for returning.
* @param useCache Whether to use cached quota usage. Note that
* {@link WithName} node never uses cache for its subtree.
@ -542,12 +548,15 @@ public abstract class INode implements INodeAttributes, Diff.Element<byte[]> {
* @return The same objects as the counts parameter.
*/
public abstract QuotaCounts computeQuotaUsage(
BlockStoragePolicySuite bsps,
BlockStoragePolicySuite bsps, byte blockStoragePolicyId,
QuotaCounts counts, boolean useCache, int lastSnapshotId);
public final QuotaCounts computeQuotaUsage(
BlockStoragePolicySuite bsps, QuotaCounts counts, boolean useCache) {
return computeQuotaUsage(bsps, counts, useCache, Snapshot.CURRENT_STATE_ID);
final byte storagePolicyId = isSymlink() ?
BlockStoragePolicySuite.ID_UNSPECIFIED : getStoragePolicyID();
return computeQuotaUsage(bsps, storagePolicyId, counts,
useCache, Snapshot.CURRENT_STATE_ID);
}
/**
@ -707,6 +716,20 @@ public abstract class INode implements INodeAttributes, Diff.Element<byte[]> {
*/
public abstract byte getLocalStoragePolicyID();
/**
* Get the storage policy ID while computing quota usage
* @param parentStoragePolicyId the storage policy ID of the parent directory
* @return the storage policy ID of this INode. Note that for an
* {@link INodeSymlink} we return {@link BlockStoragePolicySuite#ID_UNSPECIFIED}
* instead of throwing Exception
*/
public byte getStoragePolicyIDForQuota(byte parentStoragePolicyId) {
byte localId = isSymlink() ?
BlockStoragePolicySuite.ID_UNSPECIFIED : getLocalStoragePolicyID();
return localId != BlockStoragePolicySuite.ID_UNSPECIFIED ?
localId : parentStoragePolicyId;
}
/**
* Breaks {@code path} into components.
* @return array of byte arrays each of which represents

34
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeDirectory.java
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@ -45,6 +45,8 @@ import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import static org.apache.hadoop.hdfs.server.blockmanagement.BlockStoragePolicySuite.ID_UNSPECIFIED;
/**
* Directory INode class.
*/
@ -123,18 +125,18 @@ public class INodeDirectory extends INodeWithAdditionalFields
return (xattr.getValue())[0];
}
}
return BlockStoragePolicySuite.ID_UNSPECIFIED;
return ID_UNSPECIFIED;
}
@Override
public byte getStoragePolicyID() {
byte id = getLocalStoragePolicyID();
if (id != BlockStoragePolicySuite.ID_UNSPECIFIED) {
if (id != ID_UNSPECIFIED) {
return id;
}
// if it is unspecified, check its parent
return getParent() != null ? getParent().getStoragePolicyID() :
BlockStoragePolicySuite.ID_UNSPECIFIED;
ID_UNSPECIFIED;
}
void setQuota(BlockStoragePolicySuite bsps, long nsQuota, long ssQuota, StorageType type) {
@ -568,10 +570,11 @@ public class INodeDirectory extends INodeWithAdditionalFields
}
@Override
public QuotaCounts computeQuotaUsage(BlockStoragePolicySuite bsps, QuotaCounts counts, boolean useCache,
public QuotaCounts computeQuotaUsage(BlockStoragePolicySuite bsps,
byte blockStoragePolicyId, QuotaCounts counts, boolean useCache,
int lastSnapshotId) {
final 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
@ -579,7 +582,9 @@ public class INodeDirectory extends INodeWithAdditionalFields
&& !(useCache && isQuotaSet())) {
ReadOnlyList<INode> childrenList = getChildrenList(lastSnapshotId);
for (INode child : childrenList) {
child.computeQuotaUsage(bsps, counts, useCache, lastSnapshotId);
final byte childPolicyId = child.getStoragePolicyIDForQuota(blockStoragePolicyId);
child.computeQuotaUsage(bsps, childPolicyId, counts, useCache,
lastSnapshotId);
}
counts.addNameSpace(1);
return counts;
@ -591,28 +596,33 @@ public class INodeDirectory extends INodeWithAdditionalFields
return q.AddCurrentSpaceUsage(counts);
} else {
useCache = q != null && !q.isQuotaSet() ? false : useCache;
return computeDirectoryQuotaUsage(bsps, counts, useCache, lastSnapshotId);
return computeDirectoryQuotaUsage(bsps, blockStoragePolicyId, counts,
useCache, lastSnapshotId);
}
}
private QuotaCounts computeDirectoryQuotaUsage(BlockStoragePolicySuite bsps,
QuotaCounts counts, boolean useCache, int lastSnapshotId) {
byte blockStoragePolicyId, QuotaCounts counts, boolean useCache,
int lastSnapshotId) {
if (children != null) {
for (INode child : children) {
child.computeQuotaUsage(bsps, counts, useCache, lastSnapshotId);
final byte childPolicyId = child.getStoragePolicyIDForQuota(blockStoragePolicyId);
child.computeQuotaUsage(bsps, childPolicyId, counts, useCache,
lastSnapshotId);
}
}
return computeQuotaUsage4CurrentDirectory(bsps, counts);
return computeQuotaUsage4CurrentDirectory(bsps, blockStoragePolicyId,
counts);
}
/** Add quota usage for this inode excluding children. */
public QuotaCounts computeQuotaUsage4CurrentDirectory(
BlockStoragePolicySuite bsps, QuotaCounts counts) {
BlockStoragePolicySuite bsps, byte storagePolicyId, QuotaCounts counts) {
counts.addNameSpace(1);
// include the diff list
DirectoryWithSnapshotFeature sf = getDirectoryWithSnapshotFeature();
if (sf != null) {
sf.computeQuotaUsage4CurrentDirectory(bsps, counts);
sf.computeQuotaUsage4CurrentDirectory(bsps, storagePolicyId, counts);
}
return counts;
}

13
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeFile.java
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@ -17,6 +17,7 @@
*/
package org.apache.hadoop.hdfs.server.namenode;
import static org.apache.hadoop.hdfs.server.blockmanagement.BlockStoragePolicySuite.ID_UNSPECIFIED;
import static org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot.CURRENT_STATE_ID;
import static org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot.NO_SNAPSHOT_ID;
@ -24,7 +25,6 @@ import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
@ -393,7 +393,7 @@ public class INodeFile extends INodeWithAdditionalFields
@Override
public byte getStoragePolicyID() {
byte id = getLocalStoragePolicyID();
if (id == BlockStoragePolicySuite.ID_UNSPECIFIED) {
if (id == ID_UNSPECIFIED) {
return this.getParent() != null ?
this.getParent().getStoragePolicyID() : id;
}
@ -554,7 +554,8 @@ public class INodeFile extends INodeWithAdditionalFields
// derive the intended storage type usage for quota by storage type
@Override
public final QuotaCounts computeQuotaUsage(
BlockStoragePolicySuite bsps, QuotaCounts counts, boolean useCache,
BlockStoragePolicySuite bsps, byte blockStoragePolicyId,
QuotaCounts counts, boolean useCache,
int lastSnapshotId) {
long nsDelta = 1;
final long ssDeltaNoReplication;
@ -583,8 +584,8 @@ public class INodeFile extends INodeWithAdditionalFields
counts.addNameSpace(nsDelta);
counts.addStorageSpace(ssDeltaNoReplication * replication);
if (getStoragePolicyID() != BlockStoragePolicySuite.ID_UNSPECIFIED){
BlockStoragePolicy bsp = bsps.getPolicy(getStoragePolicyID());
if (blockStoragePolicyId != ID_UNSPECIFIED){
BlockStoragePolicy bsp = bsps.getPolicy(blockStoragePolicyId);
List<StorageType> storageTypes = bsp.chooseStorageTypes(replication);
for (StorageType t : storageTypes) {
if (!t.supportTypeQuota()) {
@ -618,7 +619,7 @@ public class INodeFile extends INodeWithAdditionalFields
counts.addContent(Content.LENGTH, fileLen);
counts.addContent(Content.DISKSPACE, storagespaceConsumed());
if (getStoragePolicyID() != BlockStoragePolicySuite.ID_UNSPECIFIED){
if (getStoragePolicyID() != ID_UNSPECIFIED){
BlockStoragePolicy bsp = summary.getBlockStoragePolicySuite().
getPolicy(getStoragePolicyID());
List<StorageType> storageTypes = bsp.chooseStorageTypes(getFileReplication());

4
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeMap.java
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@ -103,8 +103,8 @@ public class INodeMap {
@Override
public QuotaCounts computeQuotaUsage(
BlockStoragePolicySuite bsps, QuotaCounts counts,
boolean useCache, int lastSnapshotId) {
BlockStoragePolicySuite bsps, byte blockStoragePolicyId,
QuotaCounts counts, boolean useCache, int lastSnapshotId) {
return null;
}

15
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeReference.java
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@ -23,7 +23,6 @@ import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import org.apache.hadoop.fs.StorageType;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.fs.permission.PermissionStatus;
import org.apache.hadoop.hdfs.protocol.QuotaExceededException;
@ -327,9 +326,10 @@ public abstract class INodeReference extends INode {
@Override
public QuotaCounts computeQuotaUsage(
BlockStoragePolicySuite bsps,
BlockStoragePolicySuite bsps, byte blockStoragePolicyId,
QuotaCounts counts, boolean useCache, int lastSnapshotId) {
return referred.computeQuotaUsage(bsps, counts, useCache, lastSnapshotId);
return referred.computeQuotaUsage(bsps, blockStoragePolicyId, counts,
useCache, lastSnapshotId);
}
@Override
@ -512,7 +512,8 @@ public abstract class INodeReference extends INode {
ContentSummaryComputationContext summary) {
//only count storagespace for WithName
final QuotaCounts q = new QuotaCounts.Builder().build();
computeQuotaUsage(summary.getBlockStoragePolicySuite(), q, false, lastSnapshotId);
computeQuotaUsage(summary.getBlockStoragePolicySuite(),
getStoragePolicyID(), q, false, lastSnapshotId);
summary.getCounts().addContent(Content.DISKSPACE, q.getStorageSpace());
summary.getCounts().addTypeSpaces(q.getTypeSpaces());
return summary;
@ -520,7 +521,8 @@ public abstract class INodeReference extends INode {
@Override
public final QuotaCounts computeQuotaUsage(BlockStoragePolicySuite bsps,
QuotaCounts counts, boolean useCache, int lastSnapshotId) {
byte blockStoragePolicyId, QuotaCounts counts, boolean useCache,
int lastSnapshotId) {
// if this.lastSnapshotId < lastSnapshotId, the rename of the referred
// node happened before the rename of its ancestor. This should be
// impossible since for WithName node we only count its children at the
@ -535,7 +537,8 @@ public abstract class INodeReference extends INode {
// been updated by changes in the current tree.
int id = lastSnapshotId != Snapshot.CURRENT_STATE_ID ?
lastSnapshotId : this.lastSnapshotId;
return referred.computeQuotaUsage(bsps, counts, false, id);
return referred.computeQuotaUsage(bsps, blockStoragePolicyId, counts,
false, id);
}
@Override

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeSymlink.java
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@ -93,7 +93,7 @@ public class INodeSymlink extends INodeWithAdditionalFields {
@Override
public QuotaCounts computeQuotaUsage(
BlockStoragePolicySuite bsps,
BlockStoragePolicySuite bsps, byte blockStoragePolicyId,
QuotaCounts counts, boolean useCache, int lastSnapshotId) {
counts.addNameSpace(1);
return counts;

7
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/DirectoryWithSnapshotFeature.java
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@ -641,10 +641,13 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
}
public QuotaCounts computeQuotaUsage4CurrentDirectory(
BlockStoragePolicySuite bsps, QuotaCounts counts) {
BlockStoragePolicySuite bsps, byte storagePolicyId,
QuotaCounts counts) {
for(DirectoryDiff d : diffs) {
for(INode deleted : d.getChildrenDiff().getList(ListType.DELETED)) {
deleted.computeQuotaUsage(bsps, counts, false, Snapshot.CURRENT_STATE_ID);
final byte childPolicyId = deleted.getStoragePolicyIDForQuota(storagePolicyId);
deleted.computeQuotaUsage(bsps, childPolicyId, counts, false,
Snapshot.CURRENT_STATE_ID);
}
}
return counts;