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HDFS-9027. Refactor o.a.h.hdfs.DataStreamer#isLazyPersist() method. (Contributed by Mingliang Liu)

This commit is contained in:
Arpit Agarwal 2015-09-11 10:11:52 -07:00
parent 4073539118
commit d732c7b9de
6 changed files with 28 additions and 34 deletions
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8
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocol/HdfsConstants.java
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@ -34,12 +34,20 @@ public class HdfsConstants {
* URI Scheme for hdfs://namenode/ URIs.
*/
public static final String HDFS_URI_SCHEME = "hdfs";
public static final byte MEMORY_STORAGE_POLICY_ID = 15;
public static final String MEMORY_STORAGE_POLICY_NAME = "LAZY_PERSIST";
public static final byte ALLSSD_STORAGE_POLICY_ID = 12;
public static final String ALLSSD_STORAGE_POLICY_NAME = "ALL_SSD";
public static final byte ONESSD_STORAGE_POLICY_ID = 10;
public static final String ONESSD_STORAGE_POLICY_NAME = "ONE_SSD";
public static final byte HOT_STORAGE_POLICY_ID = 7;
public static final String HOT_STORAGE_POLICY_NAME = "HOT";
public static final byte WARM_STORAGE_POLICY_ID = 5;
public static final String WARM_STORAGE_POLICY_NAME = "WARM";
public static final byte COLD_STORAGE_POLICY_ID = 2;
public static final String COLD_STORAGE_POLICY_NAME = "COLD";
// TODO should be conf injected?
public static final int DEFAULT_DATA_SOCKET_SIZE = 128 * 1024;
/**

3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -558,6 +558,9 @@ Release 2.8.0 - UNRELEASED
HDFS-6763. Initialize file system-wide quota once on transitioning to active
(kihwal)
HDFS-9027. Refactor o.a.h.hdfs.DataStreamer#isLazyPersist() method.
(Mingliang Liu via Arpit Agarwal)
OPTIMIZATIONS
HDFS-8026. Trace FSOutputSummer#writeChecksumChunks rather than

8
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DataStreamer.java
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@ -46,7 +46,6 @@ import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.fs.StorageType;
import org.apache.hadoop.hdfs.client.HdfsClientConfigKeys.BlockWrite;
import org.apache.hadoop.hdfs.client.impl.DfsClientConf;
import org.apache.hadoop.hdfs.protocol.BlockStoragePolicy;
import org.apache.hadoop.hdfs.protocol.DSQuotaExceededException;
import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
@ -69,7 +68,6 @@ import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.BlockOpResponseP
import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.Status;
import org.apache.hadoop.hdfs.protocolPB.PBHelperClient;
import org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier;
import org.apache.hadoop.hdfs.server.blockmanagement.BlockStoragePolicySuite;
import org.apache.hadoop.hdfs.server.datanode.CachingStrategy;
import org.apache.hadoop.hdfs.server.namenode.NotReplicatedYetException;
import org.apache.hadoop.hdfs.util.ByteArrayManager;
@ -155,9 +153,7 @@ class DataStreamer extends Daemon {
* @return if this file is lazy persist
*/
static boolean isLazyPersist(HdfsFileStatus stat) {
final BlockStoragePolicy p = blockStoragePolicySuite.getPolicy(
HdfsConstants.MEMORY_STORAGE_POLICY_NAME);
return p != null && stat.getStoragePolicy() == p.getId();
return stat.getStoragePolicy() == HdfsConstants.MEMORY_STORAGE_POLICY_ID;
}
/**
@ -379,8 +375,6 @@ class DataStreamer extends Daemon {
private final LinkedList<DFSPacket> ackQueue = new LinkedList<>();
private final AtomicReference<CachingStrategy> cachingStrategy;
private final ByteArrayManager byteArrayManager;
private static final BlockStoragePolicySuite blockStoragePolicySuite =
BlockStoragePolicySuite.createDefaultSuite();
//persist blocks on namenode
private final AtomicBoolean persistBlocks = new AtomicBoolean(false);
private boolean failPacket = false;

13
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockStoragePolicySuite.java
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@ -26,7 +26,6 @@ import org.apache.hadoop.fs.XAttr;
import org.apache.hadoop.hdfs.XAttrHelper;
import org.apache.hadoop.hdfs.protocol.BlockStoragePolicy;
import org.apache.hadoop.hdfs.protocol.HdfsConstants;
import org.apache.hadoop.hdfs.server.common.HdfsServerConstants;
import org.apache.hadoop.util.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -48,37 +47,37 @@ public class BlockStoragePolicySuite {
public static BlockStoragePolicySuite createDefaultSuite() {
final BlockStoragePolicy[] policies =
new BlockStoragePolicy[1 << ID_BIT_LENGTH];
final byte lazyPersistId = HdfsServerConstants.MEMORY_STORAGE_POLICY_ID;
final byte lazyPersistId = HdfsConstants.MEMORY_STORAGE_POLICY_ID;
policies[lazyPersistId] = new BlockStoragePolicy(lazyPersistId,
HdfsConstants.MEMORY_STORAGE_POLICY_NAME,
new StorageType[]{StorageType.RAM_DISK, StorageType.DISK},
new StorageType[]{StorageType.DISK},
new StorageType[]{StorageType.DISK},
true); // Cannot be changed on regular files, but inherited.
final byte allssdId = HdfsServerConstants.ALLSSD_STORAGE_POLICY_ID;
final byte allssdId = HdfsConstants.ALLSSD_STORAGE_POLICY_ID;
policies[allssdId] = new BlockStoragePolicy(allssdId,
HdfsConstants.ALLSSD_STORAGE_POLICY_NAME,
new StorageType[]{StorageType.SSD},
new StorageType[]{StorageType.DISK},
new StorageType[]{StorageType.DISK});
final byte onessdId = HdfsServerConstants.ONESSD_STORAGE_POLICY_ID;
final byte onessdId = HdfsConstants.ONESSD_STORAGE_POLICY_ID;
policies[onessdId] = new BlockStoragePolicy(onessdId,
HdfsConstants.ONESSD_STORAGE_POLICY_NAME,
new StorageType[]{StorageType.SSD, StorageType.DISK},
new StorageType[]{StorageType.SSD, StorageType.DISK},
new StorageType[]{StorageType.SSD, StorageType.DISK});
final byte hotId = HdfsServerConstants.HOT_STORAGE_POLICY_ID;
final byte hotId = HdfsConstants.HOT_STORAGE_POLICY_ID;
policies[hotId] = new BlockStoragePolicy(hotId,
HdfsConstants.HOT_STORAGE_POLICY_NAME,
new StorageType[]{StorageType.DISK}, StorageType.EMPTY_ARRAY,
new StorageType[]{StorageType.ARCHIVE});
final byte warmId = HdfsServerConstants.WARM_STORAGE_POLICY_ID;
final byte warmId = HdfsConstants.WARM_STORAGE_POLICY_ID;
policies[warmId] = new BlockStoragePolicy(warmId,
HdfsConstants.WARM_STORAGE_POLICY_NAME,
new StorageType[]{StorageType.DISK, StorageType.ARCHIVE},
new StorageType[]{StorageType.DISK, StorageType.ARCHIVE},
new StorageType[]{StorageType.DISK, StorageType.ARCHIVE});
final byte coldId = HdfsServerConstants.COLD_STORAGE_POLICY_ID;
final byte coldId = HdfsConstants.COLD_STORAGE_POLICY_ID;
policies[coldId] = new BlockStoragePolicy(coldId,
HdfsConstants.COLD_STORAGE_POLICY_NAME,
new StorageType[]{StorageType.ARCHIVE}, StorageType.EMPTY_ARRAY,

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/common/HdfsServerConstants.java
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@ -99,12 +99,6 @@ public interface HdfsServerConstants {
};
byte[] DOT_SNAPSHOT_DIR_BYTES
= DFSUtil.string2Bytes(HdfsConstants.DOT_SNAPSHOT_DIR);
byte MEMORY_STORAGE_POLICY_ID = 15;
byte ALLSSD_STORAGE_POLICY_ID = 12;
byte ONESSD_STORAGE_POLICY_ID = 10;
byte HOT_STORAGE_POLICY_ID = 7;
byte WARM_STORAGE_POLICY_ID = 5;
byte COLD_STORAGE_POLICY_ID = 2;
/**
* Type of the node

24
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestBlockStoragePolicy.java
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@ -77,12 +77,12 @@ public class TestBlockStoragePolicy {
static final long FILE_LEN = 1024;
static final short REPLICATION = 3;
static final byte COLD = HdfsServerConstants.COLD_STORAGE_POLICY_ID;
static final byte WARM = HdfsServerConstants.WARM_STORAGE_POLICY_ID;
static final byte HOT = HdfsServerConstants.HOT_STORAGE_POLICY_ID;
static final byte ONESSD = HdfsServerConstants.ONESSD_STORAGE_POLICY_ID;
static final byte ALLSSD = HdfsServerConstants.ALLSSD_STORAGE_POLICY_ID;
static final byte LAZY_PERSIST = HdfsServerConstants.MEMORY_STORAGE_POLICY_ID;
static final byte COLD = HdfsConstants.COLD_STORAGE_POLICY_ID;
static final byte WARM = HdfsConstants.WARM_STORAGE_POLICY_ID;
static final byte HOT = HdfsConstants.HOT_STORAGE_POLICY_ID;
static final byte ONESSD = HdfsConstants.ONESSD_STORAGE_POLICY_ID;
static final byte ALLSSD = HdfsConstants.ALLSSD_STORAGE_POLICY_ID;
static final byte LAZY_PERSIST = HdfsConstants.MEMORY_STORAGE_POLICY_ID;
@Test (timeout=300000)
public void testConfigKeyEnabled() throws IOException {
@ -1341,19 +1341,15 @@ public class TestBlockStoragePolicy {
HdfsFileStatus status = fs.getClient().getFileInfo(file);
// 5. get file policy, it should be parent policy.
Assert
.assertTrue(
"File storage policy should be HOT",
status.getStoragePolicy()
== HdfsServerConstants.HOT_STORAGE_POLICY_ID);
.assertTrue("File storage policy should be HOT",
status.getStoragePolicy() == HOT);
// 6. restart NameNode for reloading edits logs.
cluster.restartNameNode(true);
// 7. get file policy, it should be parent policy.
status = fs.getClient().getFileInfo(file);
Assert
.assertTrue(
"File storage policy should be HOT",
status.getStoragePolicy()
== HdfsServerConstants.HOT_STORAGE_POLICY_ID);
.assertTrue("File storage policy should be HOT",
status.getStoragePolicy() == HOT);
} finally {
cluster.shutdown();