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HDFS-6924. Add new RAM_DISK storage type. (Arpit Agarwal) 

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/CHANGES-HDFS-6581.txt
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/StorageType.java
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
	hadoop-hdfs-project/hadoop-hdfs/src/main/proto/hdfs.proto
This commit is contained in:
arp 2014-08-27 09:03:45 -07:00 committed by Jitendra Pandey
parent 8885b75d78
commit b1d085e7e3
5 changed files with 17 additions and 6 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/StorageType.java
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@ -33,7 +33,8 @@ import org.apache.hadoop.classification.InterfaceStability;
public enum StorageType {
DISK,
SSD,
ARCHIVE;
ARCHIVE,
RAM_DISK;
public static final StorageType DEFAULT = DISK;

4
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
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@ -1785,6 +1785,8 @@ public class PBHelper {
return StorageTypeProto.SSD;
case ARCHIVE:
return StorageTypeProto.ARCHIVE;
case RAM_DISK:
return StorageTypeProto.RAM_DISK;
default:
throw new IllegalStateException(
"BUG: StorageType not found, type=" + type);
@ -1815,6 +1817,8 @@ public class PBHelper {
return StorageType.SSD;
case ARCHIVE:
return StorageType.ARCHIVE;
case RAM_DISK:
return StorageType.RAM_DISK;
default:
throw new IllegalStateException(
"BUG: StorageTypeProto not found, type=" + type);

2
hadoop-hdfs-project/hadoop-hdfs/src/main/proto/hdfs.proto
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@ -159,6 +159,7 @@ enum StorageTypeProto {
DISK = 1;
SSD = 2;
ARCHIVE = 3;
RAM_DISK = 4;
}
/**
@ -305,7 +306,6 @@ message HdfsFileStatusProto {
// Optional field for fileId
optional uint64 fileId = 13 [default = 0]; // default as an invalid id
optional int32 childrenNum = 14 [default = -1];
// Optional field for file encryption
optional FileEncryptionInfoProto fileEncryptionInfo = 15;

9
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/protocolPB/TestPBHelper.java
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@ -448,13 +448,16 @@ public class TestPBHelper {
DFSTestUtil.getLocalDatanodeInfo("127.0.0.1", "h2",
AdminStates.DECOMMISSIONED),
DFSTestUtil.getLocalDatanodeInfo("127.0.0.1", "h3",
AdminStates.NORMAL)
AdminStates.NORMAL),
DFSTestUtil.getLocalDatanodeInfo("127.0.0.1", "h4",
AdminStates.NORMAL),
};
String[] storageIDs = {"s1", "s2", "s3"};
String[] storageIDs = {"s1", "s2", "s3", "s4"};
StorageType[] media = {
StorageType.DISK,
StorageType.SSD,
StorageType.DISK
StorageType.DISK,
StorageType.RAM_DISK
};
LocatedBlock lb = new LocatedBlock(
new ExtendedBlock("bp12", 12345, 10, 53),

5
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataDirs.java
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@ -44,10 +44,11 @@ public class TestDataDirs {
File dir1 = new File("/dir1");
File dir2 = new File("/dir2");
File dir3 = new File("/dir3");
File dir4 = new File("/dir4");
// Verify that a valid string is correctly parsed, and that storage
// type is not case-sensitive
String locations1 = "[disk]/dir0,[DISK]/dir1,[sSd]/dir2,[disK]/dir3";
String locations1 = "[disk]/dir0,[DISK]/dir1,[sSd]/dir2,[disK]/dir3,[ram_disk]/dir4";
conf.set(DFS_DATANODE_DATA_DIR_KEY, locations1);
locations = DataNode.getStorageLocations(conf);
assertThat(locations.size(), is(4));
@ -59,6 +60,8 @@ public class TestDataDirs {
assertThat(locations.get(2).getUri(), is(dir2.toURI()));
assertThat(locations.get(3).getStorageType(), is(StorageType.DISK));
assertThat(locations.get(3).getUri(), is(dir3.toURI()));
assertThat(locations.get(4).getStorageType(), is(StorageType.RAM_DISK));
assertThat(locations.get(4).getUri(), is(dir4.toURI()));
// Verify that an unrecognized storage type result in an exception.
String locations2 = "[BadMediaType]/dir0,[ssd]/dir1,[disk]/dir2";