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HDFS-9038. DFS reserved space is erroneously counted towards non-DFS used. (Brahma Reddy Battula)

This commit is contained in:
Arpit Agarwal 2016-09-06 13:37:21 -07:00
parent f6c0b7543f
commit 5f23abfa30
19 changed files with 219 additions and 42 deletions
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33
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocol/DatanodeInfo.java
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@ -43,6 +43,7 @@ import static org.apache.hadoop.hdfs.DFSUtilClient.percent2String;
public class DatanodeInfo extends DatanodeID implements Node {
private long capacity;
private long dfsUsed;
private long nonDfsUsed;
private long remaining;
private long blockPoolUsed;
private long cacheCapacity;
@ -89,6 +90,7 @@ public class DatanodeInfo extends DatanodeID implements Node {
super(from);
this.capacity = from.getCapacity();
this.dfsUsed = from.getDfsUsed();
this.nonDfsUsed = from.getNonDfsUsed();
this.remaining = from.getRemaining();
this.blockPoolUsed = from.getBlockPoolUsed();
this.cacheCapacity = from.getCacheCapacity();
@ -105,6 +107,7 @@ public class DatanodeInfo extends DatanodeID implements Node {
super(nodeID);
this.capacity = 0L;
this.dfsUsed = 0L;
this.nonDfsUsed = 0L;
this.remaining = 0L;
this.blockPoolUsed = 0L;
this.cacheCapacity = 0L;
@ -158,10 +161,26 @@ public class DatanodeInfo extends DatanodeID implements Node {
final int xceiverCount, final String networkLocation,
final AdminStates adminState,
final String upgradeDomain) {
super(ipAddr, hostName, datanodeUuid, xferPort, infoPort,
infoSecurePort, ipcPort);
this(ipAddr, hostName, datanodeUuid, xferPort, infoPort, infoSecurePort,
ipcPort, capacity, dfsUsed, 0L, remaining, blockPoolUsed,
cacheCapacity, cacheUsed, lastUpdate, lastUpdateMonotonic,
xceiverCount, networkLocation, adminState, upgradeDomain);
}
/** Constructor. */
public DatanodeInfo(final String ipAddr, final String hostName,
final String datanodeUuid, final int xferPort, final int infoPort,
final int infoSecurePort, final int ipcPort, final long capacity,
final long dfsUsed, final long nonDfsUsed, final long remaining,
final long blockPoolUsed, final long cacheCapacity, final long cacheUsed,
final long lastUpdate, final long lastUpdateMonotonic,
final int xceiverCount, final String networkLocation,
final AdminStates adminState, final String upgradeDomain) {
super(ipAddr, hostName, datanodeUuid, xferPort, infoPort, infoSecurePort,
ipcPort);
this.capacity = capacity;
this.dfsUsed = dfsUsed;
this.nonDfsUsed = nonDfsUsed;
this.remaining = remaining;
this.blockPoolUsed = blockPoolUsed;
this.cacheCapacity = cacheCapacity;
@ -174,7 +193,7 @@ public class DatanodeInfo extends DatanodeID implements Node {
this.upgradeDomain = upgradeDomain;
}
/** Network location name */
/** Network location name. */
@Override
public String getName() {
return getXferAddr();
@ -191,8 +210,7 @@ public class DatanodeInfo extends DatanodeID implements Node {
/** The used space by the data node. */
public long getNonDfsUsed() {
long nonDFSUsed = capacity - dfsUsed - remaining;
return nonDFSUsed < 0 ? 0 : nonDFSUsed;
return nonDfsUsed;
}
/** The used space by the data node as percentage of present capacity */
@ -282,6 +300,11 @@ public class DatanodeInfo extends DatanodeID implements Node {
this.dfsUsed = dfsUsed;
}
/** Sets the nondfs-used space for the datanode. */
public void setNonDfsUsed(long nonDfsUsed) {
this.nonDfsUsed = nonDfsUsed;
}
/** Sets raw free space. */
public void setRemaining(long remaining) {
this.remaining = remaining;

41
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelperClient.java
View File

@ -289,6 +289,7 @@ public class PBHelperClient {
.setId(convert((DatanodeID) info))
.setCapacity(info.getCapacity())
.setDfsUsed(info.getDfsUsed())
.setNonDfsUsed(info.getNonDfsUsed())
.setRemaining(info.getRemaining())
.setBlockPoolUsed(info.getBlockPoolUsed())
.setCacheCapacity(info.getCacheCapacity())
@ -581,15 +582,24 @@ public class PBHelperClient {
}
static public DatanodeInfo convert(DatanodeInfoProto di) {
if (di == null) return null;
return new DatanodeInfo(
convert(di.getId()),
di.hasLocation() ? di.getLocation() : null,
di.getCapacity(), di.getDfsUsed(), di.getRemaining(),
di.getBlockPoolUsed(), di.getCacheCapacity(), di.getCacheUsed(),
di.getLastUpdate(), di.getLastUpdateMonotonic(),
di.getXceiverCount(), convert(di.getAdminState()),
if (di == null) {
return null;
}
DatanodeInfo dinfo = new DatanodeInfo(convert(di.getId()),
di.hasLocation() ? di.getLocation() : null, di.getCapacity(),
di.getDfsUsed(), di.getRemaining(), di.getBlockPoolUsed(),
di.getCacheCapacity(), di.getCacheUsed(), di.getLastUpdate(),
di.getLastUpdateMonotonic(), di.getXceiverCount(),
convert(di.getAdminState()),
di.hasUpgradeDomain() ? di.getUpgradeDomain() : null);
if (di.hasNonDfsUsed()) {
dinfo.setNonDfsUsed(di.getNonDfsUsed());
} else {
// use the legacy way for older datanodes
long nonDFSUsed = di.getCapacity() - di.getDfsUsed() - di.getRemaining();
dinfo.setNonDfsUsed(nonDFSUsed < 0 ? 0 : nonDFSUsed);
}
return dinfo;
}
public static StorageType[] convertStorageTypes(
@ -1556,12 +1566,12 @@ public class PBHelperClient {
}
public static StorageReport convert(StorageReportProto p) {
return new StorageReport(
p.hasStorage() ?
convert(p.getStorage()) :
new DatanodeStorage(p.getStorageUuid()),
p.getFailed(), p.getCapacity(), p.getDfsUsed(), p.getRemaining(),
p.getBlockPoolUsed());
long nonDfsUsed = p.hasNonDfsUsed() ? p.getNonDfsUsed() : p.getCapacity()
- p.getDfsUsed() - p.getRemaining();
return new StorageReport(p.hasStorage() ? convert(p.getStorage())
: new DatanodeStorage(p.getStorageUuid()), p.getFailed(),
p.getCapacity(), p.getDfsUsed(), p.getRemaining(),
p.getBlockPoolUsed(), nonDfsUsed);
}
public static DatanodeStorage convert(DatanodeStorageProto s) {
@ -2136,7 +2146,8 @@ public class PBHelperClient {
.setBlockPoolUsed(r.getBlockPoolUsed()).setCapacity(r.getCapacity())
.setDfsUsed(r.getDfsUsed()).setRemaining(r.getRemaining())
.setStorageUuid(r.getStorage().getStorageID())
.setStorage(convert(r.getStorage()));
.setStorage(convert(r.getStorage()))
.setNonDfsUsed(r.getNonDfsUsed());
return builder.build();
}

10
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/server/protocol/StorageReport.java
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@ -25,17 +25,19 @@ public class StorageReport {
private final boolean failed;
private final long capacity;
private final long dfsUsed;
private final long nonDfsUsed;
private final long remaining;
private final long blockPoolUsed;
public static final StorageReport[] EMPTY_ARRAY = {};
public StorageReport(DatanodeStorage storage, boolean failed,
long capacity, long dfsUsed, long remaining, long bpUsed) {
public StorageReport(DatanodeStorage storage, boolean failed, long capacity,
long dfsUsed, long remaining, long bpUsed, long nonDfsUsed) {
this.storage = storage;
this.failed = failed;
this.capacity = capacity;
this.dfsUsed = dfsUsed;
this.nonDfsUsed = nonDfsUsed;
this.remaining = remaining;
this.blockPoolUsed = bpUsed;
}
@ -56,6 +58,10 @@ public class StorageReport {
return dfsUsed;
}
public long getNonDfsUsed() {
return nonDfsUsed;
}
public long getRemaining() {
return remaining;
}

2
hadoop-hdfs-project/hadoop-hdfs-client/src/main/proto/hdfs.proto
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@ -101,6 +101,7 @@ message DatanodeInfoProto {
optional uint64 cacheUsed = 12 [default = 0];
optional uint64 lastUpdateMonotonic = 13 [default = 0];
optional string upgradeDomain = 14;
optional uint64 nonDfsUsed = 15;
}
/**
@ -125,6 +126,7 @@ message StorageReportProto {
optional uint64 remaining = 5 [ default = 0 ];
optional uint64 blockPoolUsed = 6 [ default = 0 ];
optional DatanodeStorageProto storage = 7; // supersedes StorageUuid
optional uint64 nonDfsUsed = 8;
}
/**

3
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeDescriptor.java
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@ -417,6 +417,7 @@ public class DatanodeDescriptor extends DatanodeInfo {
long totalRemaining = 0;
long totalBlockPoolUsed = 0;
long totalDfsUsed = 0;
long totalNonDfsUsed = 0;
Set<DatanodeStorageInfo> failedStorageInfos = null;
// Decide if we should check for any missing StorageReport and mark it as
@ -477,6 +478,7 @@ public class DatanodeDescriptor extends DatanodeInfo {
totalRemaining += report.getRemaining();
totalBlockPoolUsed += report.getBlockPoolUsed();
totalDfsUsed += report.getDfsUsed();
totalNonDfsUsed += report.getNonDfsUsed();
}
rollBlocksScheduled(getLastUpdateMonotonic());
@ -485,6 +487,7 @@ public class DatanodeDescriptor extends DatanodeInfo {
setRemaining(totalRemaining);
setBlockPoolUsed(totalBlockPoolUsed);
setDfsUsed(totalDfsUsed);
setNonDfsUsed(totalNonDfsUsed);
if (checkFailedStorages) {
updateFailedStorage(failedStorageInfos);
}

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeStats.java
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@ -35,6 +35,7 @@ class DatanodeStats {
private final StorageTypeStatsMap statsMap = new StorageTypeStatsMap();
private long capacityTotal = 0L;
private long capacityUsed = 0L;
private long capacityUsedNonDfs = 0L;
private long capacityRemaining = 0L;
private long blockPoolUsed = 0L;
private int xceiverCount = 0;
@ -49,6 +50,7 @@ class DatanodeStats {
xceiverCount += node.getXceiverCount();
if (node.isInService()) {
capacityUsed += node.getDfsUsed();
capacityUsedNonDfs += node.getNonDfsUsed();
blockPoolUsed += node.getBlockPoolUsed();
nodesInService++;
nodesInServiceXceiverCount += node.getXceiverCount();
@ -77,6 +79,7 @@ class DatanodeStats {
xceiverCount -= node.getXceiverCount();
if (node.isInService()) {
capacityUsed -= node.getDfsUsed();
capacityUsedNonDfs -= node.getNonDfsUsed();
blockPoolUsed -= node.getBlockPoolUsed();
nodesInService--;
nodesInServiceXceiverCount -= node.getXceiverCount();
@ -159,8 +162,7 @@ class DatanodeStats {
}
synchronized long getCapacityUsedNonDFS() {
final long nonDFSUsed = capacityTotal - capacityRemaining - capacityUsed;
return nonDFSUsed < 0L? 0L : nonDFSUsed;
return capacityUsedNonDfs;
}
synchronized float getCapacityUsedPercent() {

8
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeStorageInfo.java
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@ -93,6 +93,7 @@ public class DatanodeStorageInfo {
private long capacity;
private long dfsUsed;
private long nonDfsUsed;
private volatile long remaining;
private long blockPoolUsed;
@ -202,6 +203,10 @@ public class DatanodeStorageInfo {
return dfsUsed;
}
long getNonDfsUsed() {
return nonDfsUsed;
}
long getRemaining() {
return remaining;
}
@ -283,6 +288,7 @@ public class DatanodeStorageInfo {
void updateState(StorageReport r) {
capacity = r.getCapacity();
dfsUsed = r.getDfsUsed();
nonDfsUsed = r.getNonDfsUsed();
remaining = r.getRemaining();
blockPoolUsed = r.getBlockPoolUsed();
}
@ -332,7 +338,7 @@ public class DatanodeStorageInfo {
StorageReport toStorageReport() {
return new StorageReport(
new DatanodeStorage(storageID, state, storageType),
false, capacity, dfsUsed, remaining, blockPoolUsed);
false, capacity, dfsUsed, remaining, blockPoolUsed, nonDfsUsed);
}
/**

3
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java
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@ -164,7 +164,8 @@ class FsDatasetImpl implements FsDatasetSpi<FsVolumeImpl> {
volume.getCapacity(),
volume.getDfsUsed(),
volume.getAvailable(),
volume.getBlockPoolUsed(bpid));
volume.getBlockPoolUsed(bpid),
volume.getNonDfsUsed());
reports.add(sr);
} catch (ClosedChannelException e) {
continue;

37
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsVolumeImpl.java
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@ -385,15 +385,46 @@ public class FsVolumeImpl implements FsVolumeSpi {
*/
@Override
public long getAvailable() throws IOException {
long remaining = getCapacity() - getDfsUsed() - reservedForReplicas.get();
long available = usage.getAvailable() - reserved
- reservedForReplicas.get();
long remaining = getCapacity() - getDfsUsed() - getReservedForReplicas();
long available = usage.getAvailable() - getRemainingReserved()
- getReservedForReplicas();
if (remaining > available) {
remaining = available;
}
return (remaining > 0) ? remaining : 0;
}
long getActualNonDfsUsed() throws IOException {
return usage.getUsed() - getDfsUsed();
}
private long getRemainingReserved() throws IOException {
long actualNonDfsUsed = getActualNonDfsUsed();
if (actualNonDfsUsed < reserved) {
return reserved - actualNonDfsUsed;
}
return 0L;
}
/**
* Unplanned Non-DFS usage, i.e. Extra usage beyond reserved.
*
* @return
* @throws IOException
*/
public long getNonDfsUsed() throws IOException {
long actualNonDfsUsed = getActualNonDfsUsed();
if (actualNonDfsUsed < reserved) {
return 0L;
}
return actualNonDfsUsed - reserved;
}
@VisibleForTesting
long getDfAvailable() {
return usage.getAvailable();
}
@VisibleForTesting
public long getReservedForReplicas() {
return reservedForReplicas.get();

24
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/protocolPB/TestPBHelper.java
View File

@ -720,6 +720,28 @@ public class TestPBHelper {
assertBlockECRecoveryInfoEquals(blkECRecoveryInfo1, iterator.next());
}
@Test
public void testDataNodeInfoPBHelper() {
DatanodeID id = DFSTestUtil.getLocalDatanodeID();
DatanodeInfo dnInfos0 = new DatanodeInfo(id);
dnInfos0.setCapacity(3500L);
dnInfos0.setDfsUsed(1000L);
dnInfos0.setNonDfsUsed(2000L);
dnInfos0.setRemaining(500L);
HdfsProtos.DatanodeInfoProto dnproto = PBHelperClient.convert(dnInfos0);
DatanodeInfo dnInfos1 = PBHelperClient.convert(dnproto);
compare(dnInfos0, dnInfos1);
assertEquals(dnInfos0.getNonDfsUsed(), dnInfos1.getNonDfsUsed());
//Testing without nonDfs field
HdfsProtos.DatanodeInfoProto.Builder b =
HdfsProtos.DatanodeInfoProto.newBuilder();
b.setId(PBHelperClient.convert(id)).setCapacity(3500L).setDfsUsed(1000L)
.setRemaining(500L);
DatanodeInfo dnInfos3 = PBHelperClient.convert(b.build());
assertEquals(dnInfos0.getNonDfsUsed(), dnInfos3.getNonDfsUsed());
}
private void assertBlockECRecoveryInfoEquals(
BlockECReconstructionInfo blkECRecoveryInfo1,
BlockECReconstructionInfo blkECRecoveryInfo2) {
@ -768,4 +790,6 @@ public class TestPBHelper {
compare(dnInfos1[i], dnInfos2[i]);
}
}
}

2
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManagerTestUtil.java
View File

@ -294,7 +294,7 @@ public class BlockManagerTestUtil {
StorageReport report = new StorageReport(
dns ,false, storage.getCapacity(),
storage.getDfsUsed(), storage.getRemaining(),
storage.getBlockPoolUsed());
storage.getBlockPoolUsed(), 0);
reports.add(report);
}
return reports.toArray(StorageReport.EMPTY_ARRAY);

2
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockManager.java
View File

@ -1200,7 +1200,7 @@ public class TestBlockManager {
StorageReport report = new StorageReport(
dns, true, storageInfo.getCapacity(),
storageInfo.getDfsUsed(), storageInfo.getRemaining(),
storageInfo.getBlockPoolUsed());
storageInfo.getBlockPoolUsed(), 0L);
reports.add(report);
break;
}

2
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/SimulatedFSDataset.java
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@ -441,7 +441,7 @@ public class SimulatedFSDataset implements FsDatasetSpi<FsVolumeSpi> {
synchronized StorageReport getStorageReport(String bpid) {
return new StorageReport(dnStorage,
false, getCapacity(), getUsed(), getFree(),
map.get(bpid).getUsed());
map.get(bpid).getUsed(), 0L);
}
}

2
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/extdataset/ExternalDatasetImpl.java
View File

@ -72,7 +72,7 @@ public class ExternalDatasetImpl implements FsDatasetSpi<ExternalVolumeImpl> {
@Override
public StorageReport[] getStorageReports(String bpid) throws IOException {
StorageReport[] result = new StorageReport[1];
result[0] = new StorageReport(storage, false, 0, 0, 0, 0);
result[0] = new StorageReport(storage, false, 0, 0, 0, 0, 0);
return result;
}

40
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestFsVolumeList.java
View File

@ -30,6 +30,7 @@ import org.apache.hadoop.test.GenericTestUtils;
import org.apache.hadoop.util.StringUtils;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
import java.io.File;
import java.io.IOException;
@ -177,4 +178,43 @@ public class TestFsVolumeList {
conf, StorageType.DEFAULT);
assertEquals("", 100L, volume4.getReserved());
}
@Test
public void testNonDfsUsedMetricForVolume() throws Exception {
File volDir = new File(baseDir, "volume-0");
volDir.mkdirs();
/*
* Lets have the example.
* Capacity - 1000
* Reserved - 100
* DfsUsed - 200
* Actual Non-DfsUsed - 300 -->(expected)
* ReservedForReplicas - 50
*/
long diskCapacity = 1000L;
long duReserved = 100L;
long dfsUsage = 200L;
long actualNonDfsUsage = 300L;
long reservedForReplicas = 50L;
conf.setLong(DFSConfigKeys.DFS_DATANODE_DU_RESERVED_KEY, duReserved);
FsVolumeImpl volume = new FsVolumeImpl(dataset, "storage-id", volDir, conf,
StorageType.DEFAULT);
FsVolumeImpl spyVolume = Mockito.spy(volume);
// Set Capacity for testing
long testCapacity = diskCapacity - duReserved;
spyVolume.setCapacityForTesting(testCapacity);
// Mock volume.getDfAvailable()
long dfAvailable = diskCapacity - dfsUsage - actualNonDfsUsage;
Mockito.doReturn(dfAvailable).when(spyVolume).getDfAvailable();
// Mock dfsUsage
Mockito.doReturn(dfsUsage).when(spyVolume).getDfsUsed();
// Mock reservedForReplcas
Mockito.doReturn(reservedForReplicas).when(spyVolume)
.getReservedForReplicas();
Mockito.doReturn(actualNonDfsUsage).when(spyVolume)
.getActualNonDfsUsed();
long expectedNonDfsUsage =
actualNonDfsUsage - duReserved;
assertEquals(expectedNonDfsUsage, spyVolume.getNonDfsUsed());
}
}

4
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/NNThroughputBenchmark.java
View File

@ -949,7 +949,7 @@ public class NNThroughputBenchmark implements Tool {
// register datanode
// TODO:FEDERATION currently a single block pool is supported
StorageReport[] rep = { new StorageReport(storage, false,
DF_CAPACITY, DF_USED, DF_CAPACITY - DF_USED, DF_USED) };
DF_CAPACITY, DF_USED, DF_CAPACITY - DF_USED, DF_USED, 0L) };
DatanodeCommand[] cmds = dataNodeProto.sendHeartbeat(dnRegistration, rep,
0L, 0L, 0, 0, 0, null, true).getCommands();
if(cmds != null) {
@ -998,7 +998,7 @@ public class NNThroughputBenchmark implements Tool {
int replicateBlocks() throws IOException {
// register datanode
StorageReport[] rep = { new StorageReport(storage,
false, DF_CAPACITY, DF_USED, DF_CAPACITY - DF_USED, DF_USED) };
false, DF_CAPACITY, DF_USED, DF_CAPACITY - DF_USED, DF_USED, 0) };
DatanodeCommand[] cmds = dataNodeProto.sendHeartbeat(dnRegistration,
rep, 0L, 0L, 0, 0, 0, null, true).getCommands();
if (cmds != null) {

2
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestDeadDatanode.java
View File

@ -128,7 +128,7 @@ public class TestDeadDatanode {
// that asks datanode to register again
StorageReport[] rep = { new StorageReport(
new DatanodeStorage(reg.getDatanodeUuid()),
false, 0, 0, 0, 0) };
false, 0, 0, 0, 0, 0) };
DatanodeCommand[] cmd =
dnp.sendHeartbeat(reg, rep, 0L, 0L, 0, 0, 0, null, true).getCommands();
assertEquals(1, cmd.length);

36
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNamenodeCapacityReport.java
View File

@ -71,7 +71,6 @@ public class TestNamenodeCapacityReport {
try {
cluster = new MiniDFSCluster.Builder(conf).build();
cluster.waitActive();
final FSNamesystem namesystem = cluster.getNamesystem();
final DatanodeManager dm = cluster.getNamesystem().getBlockManager(
).getDatanodeManager();
@ -100,8 +99,9 @@ public class TestNamenodeCapacityReport {
+ " used " + used + " non DFS used " + nonDFSUsed
+ " remaining " + remaining + " perentUsed " + percentUsed
+ " percentRemaining " + percentRemaining);
assertTrue(configCapacity == (used + remaining + nonDFSUsed));
// There will be 5% space reserved in ext filesystem which is not
// considered.
assertTrue(configCapacity >= (used + remaining + nonDFSUsed));
assertTrue(percentUsed == DFSUtilClient.getPercentUsed(used,
configCapacity));
assertTrue(percentRemaining == DFSUtilClient.getPercentRemaining(
@ -148,7 +148,9 @@ public class TestNamenodeCapacityReport {
assertTrue(configCapacity == diskCapacity - reserved);
// Ensure new total capacity reported excludes the reserved space
assertTrue(configCapacity == (used + remaining + nonDFSUsed));
// There will be 5% space reserved in ext filesystem which is not
// considered.
assertTrue(configCapacity >= (used + remaining + nonDFSUsed));
// Ensure percent used is calculated based on used and present capacity
assertTrue(percentUsed == DFSUtilClient.getPercentUsed(used,
@ -160,9 +162,33 @@ public class TestNamenodeCapacityReport {
// Ensure percent used is calculated based on used and present capacity
assertTrue(percentRemaining == ((float)remaining * 100.0f)/(float)configCapacity);
//Adding testcase for non-dfs used where we need to consider
// reserved replica also.
final int fileCount = 5;
final DistributedFileSystem fs = cluster.getFileSystem();
// create streams and hsync to force datastreamers to start
DFSOutputStream[] streams = new DFSOutputStream[fileCount];
for (int i=0; i < fileCount; i++) {
streams[i] = (DFSOutputStream)fs.create(new Path("/f"+i))
.getWrappedStream();
streams[i].write("1".getBytes());
streams[i].hsync();
}
triggerHeartbeats(cluster.getDataNodes());
assertTrue(configCapacity > (namesystem.getCapacityUsed() + namesystem
.getCapacityRemaining() + namesystem.getNonDfsUsedSpace()));
// There is a chance that nonDFS usage might have slightly due to
// testlogs, So assume 1MB other files used within this gap
assertTrue(
(namesystem.getCapacityUsed() + namesystem.getCapacityRemaining()
+ namesystem.getNonDfsUsedSpace() + fileCount * fs
.getDefaultBlockSize()) - configCapacity < 1 * 1024);
}
finally {
if (cluster != null) {cluster.shutdown();}
if (cluster != null) {
cluster.shutdown();
}
}
}

4
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/metrics/TestNameNodeMetrics.java
View File

@ -166,7 +166,9 @@ public class TestNameNodeMetrics {
MetricsAsserts.getLongGauge("CapacityRemaining", rb);
long capacityUsedNonDFS =
MetricsAsserts.getLongGauge("CapacityUsedNonDFS", rb);
assert(capacityUsed + capacityRemaining + capacityUsedNonDFS ==
// There will be 5% space reserved in ext filesystem which is not
// considered.
assert (capacityUsed + capacityRemaining + capacityUsedNonDFS <=
capacityTotal);
}