HDFS-3052. Change INodeFile and INodeFileUnderConstruction to package private.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1348998 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Tsz-wo Sze
parent
13ad756796
commit
ca39e780c4
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@ -214,6 +214,9 @@ Branch-2 ( Unreleased changes )
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HDFS-1013. Miscellaneous improvements to HTML markup for web UIs
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(Eugene Koontz via todd)
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HDFS-3052. Change INodeFile and INodeFileUnderConstruction to package
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private. (szetszwo)
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OPTIMIZATIONS
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HDFS-2982. Startup performance suffers when there are many edit log
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@ -30,8 +30,9 @@
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* the block are stored.
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*/
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@InterfaceAudience.Private
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public class BlockInfo extends Block implements
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LightWeightGSet.LinkedElement {
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public class BlockInfo extends Block implements LightWeightGSet.LinkedElement {
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public static final BlockInfo[] EMPTY_ARRAY = {};
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private BlockCollection bc;
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/** For implementing {@link LightWeightGSet.LinkedElement} interface */
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@ -277,7 +277,7 @@ INode unprotectedAddFile( String path,
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preferredBlockSize, modificationTime, clientName,
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clientMachine, null);
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} else {
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newNode = new INodeFile(permissions, 0, replication,
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newNode = new INodeFile(permissions, BlockInfo.EMPTY_ARRAY, replication,
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modificationTime, atime, preferredBlockSize);
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}
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@ -1605,7 +1605,7 @@ private LocatedBlock startFileInternal(String src,
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}
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try {
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INode myFile = dir.getFileINode(src);
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INodeFile myFile = dir.getFileINode(src);
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recoverLeaseInternal(myFile, src, holder, clientMachine, false);
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try {
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@ -1681,22 +1681,20 @@ private LocatedBlock startFileInternal(String src,
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* @throws UnresolvedLinkException
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* @throws IOException
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*/
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public LocatedBlock prepareFileForWrite(String src, INode file,
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LocatedBlock prepareFileForWrite(String src, INodeFile file,
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String leaseHolder, String clientMachine, DatanodeDescriptor clientNode,
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boolean writeToEditLog)
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throws UnresolvedLinkException, IOException {
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INodeFile node = (INodeFile) file;
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boolean writeToEditLog) throws IOException {
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INodeFileUnderConstruction cons = new INodeFileUnderConstruction(
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node.getLocalNameBytes(),
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node.getReplication(),
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node.getModificationTime(),
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node.getPreferredBlockSize(),
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node.getBlocks(),
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node.getPermissionStatus(),
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file.getLocalNameBytes(),
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file.getReplication(),
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file.getModificationTime(),
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file.getPreferredBlockSize(),
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file.getBlocks(),
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file.getPermissionStatus(),
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leaseHolder,
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clientMachine,
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clientNode);
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dir.replaceNode(src, node, cons);
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dir.replaceNode(src, file, cons);
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leaseManager.addLease(cons.getClientName(), src);
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LocatedBlock ret = blockManager.convertLastBlockToUnderConstruction(cons);
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@ -25,13 +25,13 @@
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import org.apache.hadoop.fs.permission.FsPermission;
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import org.apache.hadoop.fs.permission.PermissionStatus;
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import org.apache.hadoop.hdfs.protocol.Block;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockCollection;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockInfo;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockInfoUnderConstruction;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockCollection;
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/** I-node for closed file. */
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@InterfaceAudience.Private
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public class INodeFile extends INode implements BlockCollection {
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class INodeFile extends INode implements BlockCollection {
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static final FsPermission UMASK = FsPermission.createImmutable((short)0111);
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//Number of bits for Block size
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@ -45,13 +45,6 @@ public class INodeFile extends INode implements BlockCollection {
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BlockInfo blocks[] = null;
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INodeFile(PermissionStatus permissions,
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int nrBlocks, short replication, long modificationTime,
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long atime, long preferredBlockSize) {
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this(permissions, new BlockInfo[nrBlocks], replication,
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modificationTime, atime, preferredBlockSize);
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}
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INodeFile(PermissionStatus permissions, BlockInfo[] blklist,
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short replication, long modificationTime,
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long atime, long preferredBlockSize) {
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@ -19,6 +19,7 @@
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import java.io.IOException;
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import org.apache.hadoop.classification.InterfaceAudience;
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import org.apache.hadoop.fs.permission.PermissionStatus;
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import org.apache.hadoop.hdfs.protocol.Block;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockInfo;
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@ -32,8 +33,8 @@
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/**
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* I-node for file being written.
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*/
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public class INodeFileUnderConstruction extends INodeFile
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implements MutableBlockCollection {
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@InterfaceAudience.Private
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class INodeFileUnderConstruction extends INodeFile implements MutableBlockCollection {
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private String clientName; // lease holder
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private final String clientMachine;
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private final DatanodeDescriptor clientNode; // if client is a cluster node too.
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@ -45,7 +46,7 @@ public class INodeFileUnderConstruction extends INodeFile
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String clientName,
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String clientMachine,
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DatanodeDescriptor clientNode) {
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super(permissions.applyUMask(UMASK), 0, replication,
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super(permissions.applyUMask(UMASK), BlockInfo.EMPTY_ARRAY, replication,
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modTime, modTime, preferredBlockSize);
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this.clientName = clientName;
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this.clientMachine = clientMachine;
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@ -18,39 +18,34 @@
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package org.apache.hadoop.hdfs;
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import static org.junit.Assert.assertArrayEquals;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertTrue;
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import java.io.File;
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import java.io.IOException;
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import java.util.Random;
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import org.apache.commons.logging.impl.Log4JLogger;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
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import org.apache.hadoop.fs.FSDataInputStream;
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import org.apache.hadoop.fs.FSDataOutputStream;
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import org.apache.hadoop.fs.FileStatus;
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import org.apache.hadoop.fs.FileSystem;
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import org.apache.hadoop.fs.FileUtil;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.fs.FSDataOutputStream;
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import org.apache.hadoop.fs.FSDataInputStream;
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import org.apache.hadoop.hdfs.protocol.LocatedBlock;
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import org.apache.hadoop.hdfs.protocol.LocatedBlocks;
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import org.apache.hadoop.hdfs.server.common.HdfsServerConstants.StartupOption;
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import org.apache.hadoop.hdfs.server.namenode.FSEditLog;
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import org.apache.hadoop.hdfs.server.namenode.FSImage;
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import org.apache.hadoop.hdfs.server.namenode.FSImageTestUtil;
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import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
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import org.apache.hadoop.hdfs.server.namenode.INodeFileUnderConstruction;
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import org.apache.hadoop.hdfs.server.namenode.NameNode;
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import org.apache.hadoop.io.IOUtils;
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import org.apache.hadoop.test.GenericTestUtils;
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import org.apache.log4j.Level;
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import java.io.File;
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import java.io.IOException;
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import java.net.URI;
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import java.util.Collection;
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import java.util.List;
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import java.util.Random;
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import static org.junit.Assert.*;
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import org.junit.Test;
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import com.google.common.collect.Lists;
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/**
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* A JUnit test for checking if restarting DFS preserves the
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* blocks that are part of an unclosed file.
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@ -17,7 +17,9 @@
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*/
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package org.apache.hadoop.hdfs.server.blockmanagement;
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import static org.junit.Assert.*;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertTrue;
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import java.io.IOException;
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import java.util.ArrayList;
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@ -29,14 +31,9 @@
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import org.apache.hadoop.hdfs.DFSTestUtil;
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import org.apache.hadoop.hdfs.HdfsConfiguration;
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import org.apache.hadoop.hdfs.protocol.Block;
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import org.apache.hadoop.hdfs.protocol.DatanodeID;
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import org.apache.hadoop.hdfs.protocol.HdfsConstants;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockInfo;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockManager;
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import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor;
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import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor.BlockTargetPair;
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import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
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import org.apache.hadoop.hdfs.server.namenode.INodeFile;
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import org.apache.hadoop.net.NetworkTopology;
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import org.junit.Before;
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import org.junit.Test;
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@ -381,11 +378,11 @@ private List<DatanodeDescriptor> startDecommission(int ... indexes) {
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}
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private BlockInfo addBlockOnNodes(long blockId, List<DatanodeDescriptor> nodes) {
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INodeFile iNode = Mockito.mock(INodeFile.class);
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Mockito.doReturn((short)3).when(iNode).getReplication();
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BlockCollection bc = Mockito.mock(BlockCollection.class);
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Mockito.doReturn((short)3).when(bc).getReplication();
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BlockInfo blockInfo = blockOnNodes(blockId, nodes);
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bm.blocksMap.addBlockCollection(blockInfo, iNode);
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bm.blocksMap.addBlockCollection(blockInfo, bc);
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return blockInfo;
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}
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