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HDFS-10762. Pass IIP for file status related methods. Contributed by Daryn Sharp.

This commit is contained in:
Kihwal Lee 2016-08-22 15:37:02 -05:00
parent dc7a1c54f4
commit 22fc46d765
6 changed files with 103 additions and 65 deletions
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6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirAppendOp.java
View File

@ -85,9 +85,10 @@ final class FSDirAppendOp {
final LocatedBlock lb;
final FSDirectory fsd = fsn.getFSDirectory();
final String src;
final INodesInPath iip;
fsd.writeLock();
try {
final INodesInPath iip = fsd.resolvePathForWrite(pc, srcArg);
iip = fsd.resolvePathForWrite(pc, srcArg);
src = iip.getPath();
// Verify that the destination does not exist as a directory already
final INode inode = iip.getLastINode();
@ -148,8 +149,7 @@ final class FSDirAppendOp {
fsd.writeUnlock();
}
HdfsFileStatus stat = FSDirStatAndListingOp.getFileInfo(fsd, src, false,
FSDirectory.isReservedRawName(srcArg));
HdfsFileStatus stat = FSDirStatAndListingOp.getFileInfo(fsd, iip);
if (lb != null) {
NameNode.stateChangeLog.debug(
"DIR* NameSystem.appendFile: file {} for {} at {} block {} block"

82
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirStatAndListingOp.java
View File

@ -108,16 +108,16 @@ class FSDirStatAndListingOp {
if (!DFSUtil.isValidName(src)) {
throw new InvalidPathException("Invalid file name: " + src);
}
final INodesInPath iip;
if (fsd.isPermissionEnabled()) {
FSPermissionChecker pc = fsd.getPermissionChecker();
final INodesInPath iip = fsd.resolvePath(pc, srcArg, resolveLink);
src = iip.getPath();
iip = fsd.resolvePath(pc, srcArg, resolveLink);
fsd.checkPermission(pc, iip, false, null, null, null, null, false);
} else {
src = FSDirectory.resolvePath(srcArg, fsd);
iip = fsd.getINodesInPath(src, resolveLink);
}
return getFileInfo(fsd, src, FSDirectory.isReservedRawName(srcArg),
resolveLink);
return getFileInfo(fsd, iip);
}
/**
@ -230,7 +230,6 @@ class FSDirStatAndListingOp {
String src, byte[] startAfter, boolean needLocation, boolean isSuperUser)
throws IOException {
String srcs = FSDirectory.normalizePath(src);
final boolean isRawPath = FSDirectory.isReservedRawName(src);
if (FSDirectory.isExactReservedName(srcs)) {
return getReservedListing(fsd);
}
@ -257,7 +256,7 @@ class FSDirStatAndListingOp {
return new DirectoryListing(
new HdfsFileStatus[]{ createFileStatus(
fsd, HdfsFileStatus.EMPTY_NAME, nodeAttrs,
needLocation, parentStoragePolicy, snapshot, isRawPath, iip)
needLocation, parentStoragePolicy, iip)
}, 0);
}
@ -282,7 +281,7 @@ class FSDirStatAndListingOp {
cur.getLocalNameBytes());
listing[i] = createFileStatus(fsd, cur.getLocalNameBytes(), nodeAttrs,
needLocation, getStoragePolicyID(curPolicy, parentStoragePolicy),
snapshot, isRawPath, iipWithChild);
iipWithChild);
listingCnt++;
if (needLocation) {
// Once we hit lsLimit locations, stop.
@ -339,7 +338,6 @@ class FSDirStatAndListingOp {
listing[i] = createFileStatus(
fsd, sRoot.getLocalNameBytes(), nodeAttrs,
HdfsConstants.BLOCK_STORAGE_POLICY_ID_UNSPECIFIED,
Snapshot.CURRENT_STATE_ID, false,
INodesInPath.fromINode(sRoot));
}
return new DirectoryListing(
@ -363,10 +361,8 @@ class FSDirStatAndListingOp {
* @return object containing information regarding the file
* or null if file not found
*/
static HdfsFileStatus getFileInfo(
FSDirectory fsd, String path, INodesInPath iip, boolean isRawPath,
boolean includeStoragePolicy)
throws IOException {
static HdfsFileStatus getFileInfo(FSDirectory fsd,
INodesInPath iip, boolean includeStoragePolicy) throws IOException {
fsd.readLock();
try {
final INode node = iip.getLastINode();
@ -377,36 +373,32 @@ class FSDirStatAndListingOp {
byte policyId = includeStoragePolicy && !node.isSymlink() ?
node.getStoragePolicyID() :
HdfsConstants.BLOCK_STORAGE_POLICY_ID_UNSPECIFIED;
INodeAttributes nodeAttrs = getINodeAttributes(fsd, path,
INodeAttributes nodeAttrs = getINodeAttributes(fsd, iip.getPath(),
HdfsFileStatus.EMPTY_NAME,
node, iip.getPathSnapshotId());
return createFileStatus(fsd, HdfsFileStatus.EMPTY_NAME, nodeAttrs,
policyId, iip.getPathSnapshotId(), isRawPath, iip);
policyId, iip);
} finally {
fsd.readUnlock();
}
}
static HdfsFileStatus getFileInfo(
FSDirectory fsd, String src, boolean resolveLink, boolean isRawPath)
static HdfsFileStatus getFileInfo(FSDirectory fsd, INodesInPath iip)
throws IOException {
fsd.readLock();
try {
HdfsFileStatus status = null;
final INodesInPath iip = fsd.getINodesInPath(src, resolveLink);
if (FSDirectory.isExactReservedName(iip.getPathComponents())) {
status = FSDirectory.DOT_RESERVED_STATUS;
} else if (iip.isDotSnapshotDir()) {
if (fsd.getINode4DotSnapshot(iip) != null) {
status = FSDirectory.DOT_SNAPSHOT_DIR_STATUS;
}
} else {
status = getFileInfo(fsd, src, iip, isRawPath, true);
}
return status;
} finally {
fsd.readUnlock();
if (FSDirectory.isExactReservedName(iip.getPathComponents())) {
return FSDirectory.DOT_RESERVED_STATUS;
}
if (iip.isDotSnapshotDir()) {
if (fsd.getINode4DotSnapshot(iip) != null) {
return new HdfsFileStatus(0, true, 0, 0, 0, 0, null, null, null, null,
HdfsFileStatus.EMPTY_NAME, -1L, 0, null,
HdfsConstants.BLOCK_STORAGE_POLICY_ID_UNSPECIFIED, null);
}
return null;
}
return getFileInfo(fsd, iip, true);
}
/**
@ -423,15 +415,12 @@ class FSDirStatAndListingOp {
*/
private static HdfsFileStatus createFileStatus(
FSDirectory fsd, byte[] path, INodeAttributes nodeAttrs,
boolean needLocation, byte storagePolicy, int snapshot, boolean isRawPath,
INodesInPath iip)
boolean needLocation, byte storagePolicy, INodesInPath iip)
throws IOException {
if (needLocation) {
return createLocatedFileStatus(fsd, path, nodeAttrs, storagePolicy,
snapshot, isRawPath, iip);
return createLocatedFileStatus(fsd, path, nodeAttrs, storagePolicy, iip);
} else {
return createFileStatus(fsd, path, nodeAttrs, storagePolicy,
snapshot, isRawPath, iip);
return createFileStatus(fsd, path, nodeAttrs, storagePolicy, iip);
}
}
@ -445,8 +434,7 @@ class FSDirStatAndListingOp {
INodesInPath iip) throws IOException {
INodeAttributes nodeAttrs = getINodeAttributes(
fsd, fullPath, path, iip.getLastINode(), snapshot);
return createFileStatus(fsd, path, nodeAttrs, storagePolicy,
snapshot, isRawPath, iip);
return createFileStatus(fsd, path, nodeAttrs, storagePolicy, iip);
}
/**
@ -454,14 +442,15 @@ class FSDirStatAndListingOp {
* @param iip the INodesInPath containing the target INode and its ancestors
*/
static HdfsFileStatus createFileStatus(
FSDirectory fsd, byte[] path,
INodeAttributes nodeAttrs, byte storagePolicy, int snapshot,
boolean isRawPath, INodesInPath iip) throws IOException {
FSDirectory fsd, byte[] path, INodeAttributes nodeAttrs,
byte storagePolicy, INodesInPath iip) throws IOException {
long size = 0; // length is zero for directories
short replication = 0;
long blocksize = 0;
final boolean isEncrypted;
final INode node = iip.getLastINode();
final int snapshot = iip.getPathSnapshotId();
final boolean isRawPath = iip.isRaw();
final FileEncryptionInfo feInfo = isRawPath ? null : FSDirEncryptionZoneOp
.getFileEncryptionInfo(fsd, node, snapshot, iip);
@ -511,10 +500,9 @@ class FSDirStatAndListingOp {
* Create FileStatus with location info by file INode
* @param iip the INodesInPath containing the target INode and its ancestors
*/
private static HdfsLocatedFileStatus createLocatedFileStatus(
private static HdfsFileStatus createLocatedFileStatus(
FSDirectory fsd, byte[] path, INodeAttributes nodeAttrs,
byte storagePolicy, int snapshot,
boolean isRawPath, INodesInPath iip) throws IOException {
byte storagePolicy, INodesInPath iip) throws IOException {
assert fsd.hasReadLock();
long size = 0; // length is zero for directories
short replication = 0;
@ -522,6 +510,8 @@ class FSDirStatAndListingOp {
LocatedBlocks loc = null;
final boolean isEncrypted;
final INode node = iip.getLastINode();
final int snapshot = iip.getPathSnapshotId();
final boolean isRawPath = iip.isRaw();
final FileEncryptionInfo feInfo = isRawPath ? null : FSDirEncryptionZoneOp
.getFileEncryptionInfo(fsd, node, snapshot, iip);

3
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirWriteFileOp.java
View File

@ -340,7 +340,6 @@ class FSDirWriteFileOp {
version = ezInfo.protocolVersion;
}
boolean isRawPath = FSDirectory.isReservedRawName(src);
FSDirectory fsd = fsn.getFSDirectory();
INodesInPath iip = fsd.resolvePathForWrite(pc, src);
src = iip.getPath();
@ -444,7 +443,7 @@ class FSDirWriteFileOp {
NameNode.stateChangeLog.debug("DIR* NameSystem.startFile: added " +
src + " inode " + newNode.getId() + " " + holder);
}
return FSDirStatAndListingOp.getFileInfo(fsd, src, false, isRawPath);
return FSDirStatAndListingOp.getFileInfo(fsd, iip);
}
static EncryptionKeyInfo getEncryptionKeyInfo(FSNamesystem fsn,

14
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
View File

@ -531,21 +531,24 @@ public class FSDirectory implements Closeable {
* @throws FileNotFoundException
* @throws AccessControlException
*/
INodesInPath resolvePath(FSPermissionChecker pc, String src)
@VisibleForTesting
public INodesInPath resolvePath(FSPermissionChecker pc, String src)
throws UnresolvedLinkException, FileNotFoundException,
AccessControlException {
return resolvePath(pc, src, true);
}
INodesInPath resolvePath(FSPermissionChecker pc, String src,
@VisibleForTesting
public INodesInPath resolvePath(FSPermissionChecker pc, String src,
boolean resolveLink) throws UnresolvedLinkException,
FileNotFoundException, AccessControlException {
byte[][] components = INode.getPathComponents(src);
if (isPermissionEnabled && pc != null && isReservedRawName(components)) {
boolean isRaw = isReservedRawName(components);
if (isPermissionEnabled && pc != null && isRaw) {
pc.checkSuperuserPrivilege();
}
components = resolveComponents(components, this);
return INodesInPath.resolve(rootDir, components, resolveLink);
return INodesInPath.resolve(rootDir, components, isRaw, resolveLink);
}
INodesInPath resolvePathForWrite(FSPermissionChecker pc, String src)
@ -1662,8 +1665,7 @@ public class FSDirectory implements Closeable {
HdfsFileStatus getAuditFileInfo(INodesInPath iip)
throws IOException {
return (namesystem.isAuditEnabled() && namesystem.isExternalInvocation())
? FSDirStatAndListingOp.getFileInfo(this, iip.getPath(), iip, false,
false) : null;
? FSDirStatAndListingOp.getFileInfo(this, iip, false) : null;
}
/**

42
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodesInPath.java
View File

@ -126,6 +126,12 @@ public class INodesInPath {
static INodesInPath resolve(final INodeDirectory startingDir,
final byte[][] components, final boolean resolveLink)
throws UnresolvedLinkException {
return resolve(startingDir, components, false, resolveLink);
}
static INodesInPath resolve(final INodeDirectory startingDir,
final byte[][] components, final boolean isRaw,
final boolean resolveLink) throws UnresolvedLinkException {
Preconditions.checkArgument(startingDir.compareTo(components[0]) == 0);
INode curNode = startingDir;
@ -225,7 +231,7 @@ public class INodesInPath {
System.arraycopy(inodes, 0, newNodes, 0, newNodes.length);
inodes = newNodes;
}
return new INodesInPath(inodes, components, isSnapshot, snapshotId);
return new INodesInPath(inodes, components, isRaw, isSnapshot, snapshotId);
}
private static boolean shouldUpdateLatestId(int sid, int snapshotId) {
@ -249,7 +255,8 @@ public class INodesInPath {
INode[] inodes = new INode[iip.inodes.length];
System.arraycopy(iip.inodes, 0, inodes, 0, inodes.length);
inodes[pos] = inode;
return new INodesInPath(inodes, iip.path, iip.isSnapshot, iip.snapshotId);
return new INodesInPath(inodes, iip.path, iip.isRaw,
iip.isSnapshot, iip.snapshotId);
}
/**
@ -267,7 +274,8 @@ public class INodesInPath {
byte[][] path = new byte[iip.path.length + 1][];
System.arraycopy(iip.path, 0, path, 0, path.length - 1);
path[path.length - 1] = childName;
return new INodesInPath(inodes, path, iip.isSnapshot, iip.snapshotId);
return new INodesInPath(inodes, path, iip.isRaw,
iip.isSnapshot, iip.snapshotId);
}
private final byte[][] path;
@ -279,6 +287,13 @@ public class INodesInPath {
* true if this path corresponds to a snapshot
*/
private final boolean isSnapshot;
/**
* true if this is a /.reserved/raw path. path component resolution strips
* it from the path so need to track it separately.
*/
private final boolean isRaw;
/**
* For snapshot paths, it is the id of the snapshot; or
* {@link Snapshot#CURRENT_STATE_ID} if the snapshot does not exist. For
@ -287,17 +302,18 @@ public class INodesInPath {
*/
private final int snapshotId;
private INodesInPath(INode[] inodes, byte[][] path, boolean isSnapshot,
int snapshotId) {
private INodesInPath(INode[] inodes, byte[][] path, boolean isRaw,
boolean isSnapshot,int snapshotId) {
Preconditions.checkArgument(inodes != null && path != null);
this.inodes = inodes;
this.path = path;
this.isRaw = isRaw;
this.isSnapshot = isSnapshot;
this.snapshotId = snapshotId;
}
private INodesInPath(INode[] inodes, byte[][] path) {
this(inodes, path, false, CURRENT_STATE_ID);
this(inodes, path, false, false, CURRENT_STATE_ID);
}
/**
@ -400,7 +416,7 @@ public class INodesInPath {
final byte[][] apath = new byte[length][];
System.arraycopy(this.inodes, 0, anodes, 0, length);
System.arraycopy(this.path, 0, apath, 0, length);
return new INodesInPath(anodes, apath, false, snapshotId);
return new INodesInPath(anodes, apath, isRaw, false, snapshotId);
}
/**
@ -428,7 +444,7 @@ public class INodesInPath {
byte[][] existingPath = new byte[i][];
System.arraycopy(inodes, 0, existing, 0, i);
System.arraycopy(path, 0, existingPath, 0, i);
return new INodesInPath(existing, existingPath, false, snapshotId);
return new INodesInPath(existing, existingPath, isRaw, false, snapshotId);
}
/**
@ -438,10 +454,20 @@ public class INodesInPath {
return this.isSnapshot;
}
/**
* @return if .snapshot is the last path component.
*/
boolean isDotSnapshotDir() {
return isDotSnapshotDir(getLastLocalName());
}
/**
* @return if this is a /.reserved/raw path.
*/
public boolean isRaw() {
return isRaw;
}
private static String toString(INode inode) {
return inode == null? null: inode.getLocalName();
}

21
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReservedRawPaths.java
View File

@ -36,6 +36,7 @@ import org.apache.hadoop.hdfs.client.CreateEncryptionZoneFlag;
import org.apache.hadoop.hdfs.client.HdfsAdmin;
import org.apache.hadoop.hdfs.server.namenode.EncryptionZoneManager;
import org.apache.hadoop.hdfs.server.namenode.FSDirectory;
import org.apache.hadoop.hdfs.server.namenode.INodesInPath;
import org.apache.hadoop.security.AccessControlException;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.log4j.Level;
@ -49,6 +50,8 @@ import static org.apache.hadoop.hdfs.DFSTestUtil.verifyFilesNotEqual;
import static org.apache.hadoop.test.GenericTestUtils.assertExceptionContains;
import static org.apache.hadoop.test.GenericTestUtils.assertMatches;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
public class TestReservedRawPaths {
@ -99,6 +102,24 @@ public class TestReservedRawPaths {
}
}
/**
* Verify resolving path will return an iip that tracks if the original
* path was a raw path.
*/
@Test(timeout = 120000)
public void testINodesInPath() throws IOException {
FSDirectory fsd = cluster.getNamesystem().getFSDirectory();
final String path = "/path";
INodesInPath iip = fsd.resolvePath(null, path);
assertFalse(iip.isRaw());
assertEquals(path, iip.getPath());
iip = fsd.resolvePath(null, "/.reserved/raw" + path);
assertTrue(iip.isRaw());
assertEquals(path, iip.getPath());
}
/**
* Basic read/write tests of raw files.
* Create a non-encrypted file