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HDDS-1535. Space tracking for Open Containers : Handle Node Startup. Contributed by Supratim Deka (#832)

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* HDDS-1535. Space tracking for Open Containers : Handle Node Startup. Contributed by Supratim Deka

* Fixed checkstyle issues.

* verifyContainerData also does fixup, renamed. Added a Javadoc comment, both as per review discussion

* fixed merge error. adapted to new signature of BlockUtils getDB

* fixed checkstyle issue post merge
This commit is contained in:
Arpit Agarwal 2019-05-23 10:42:08 -07:00 committed by GitHub
commit b4b9120e28
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2 changed files with 127 additions and 7 deletions
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43
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/ozoneimpl/ContainerReader.java
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@ -27,11 +27,14 @@
import org.apache.hadoop.hdfs.DFSUtil;
import org.apache.hadoop.ozone.OzoneConsts;
import org.apache.hadoop.ozone.common.Storage;
import org.apache.hadoop.ozone.container.common.helpers.BlockData;
import org.apache.hadoop.ozone.container.common.helpers.ChunkInfo;
import org.apache.hadoop.ozone.container.common.helpers.ContainerUtils;
import org.apache.hadoop.ozone.container.common.impl.ContainerData;
import org.apache.hadoop.ozone.container.common.impl.ContainerSet;
import org.apache.hadoop.ozone.container.common.volume.HddsVolume;
import org.apache.hadoop.ozone.container.common.volume.VolumeSet;
import org.apache.hadoop.ozone.container.keyvalue.KeyValueBlockIterator;
import org.apache.hadoop.ozone.container.keyvalue.KeyValueContainer;
import org.apache.hadoop.ozone.container.keyvalue.KeyValueContainerData;
import org.apache.hadoop.ozone.container.common.impl.ContainerDataYaml;
@ -45,6 +48,7 @@
import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.util.List;
/**
* Class used to read .container files from Volume and build container map.
@ -161,14 +165,21 @@ private void verifyContainerFile(long containerID, File containerFile) {
"Skipping loading of this container.", containerFile);
return;
}
verifyContainerData(containerData);
verifyAndFixupContainerData(containerData);
} catch (IOException ex) {
LOG.error("Failed to parse ContainerFile for ContainerID: {}",
containerID, ex);
}
}
public void verifyContainerData(ContainerData containerData)
/**
* verify ContainerData loaded from disk and fix-up stale members.
* Specifically blockCommitSequenceId, delete related metadata
* and bytesUsed
* @param containerData
* @throws IOException
*/
public void verifyAndFixupContainerData(ContainerData containerData)
throws IOException {
switch (containerData.getContainerType()) {
case KeyValueContainer:
@ -203,6 +214,11 @@ public void verifyContainerData(ContainerData containerData)
kvContainerData
.updateBlockCommitSequenceId(Longs.fromByteArray(bcsId));
}
if (kvContainer.getContainerState()
== ContainerProtos.ContainerDataProto.State.OPEN) {
// commitSpace for Open Containers relies on usedBytes
initializeUsedBytes(kvContainer);
}
containerSet.addContainer(kvContainer);
}
} else {
@ -218,4 +234,27 @@ public void verifyContainerData(ContainerData containerData)
ContainerProtos.Result.UNKNOWN_CONTAINER_TYPE);
}
}
private void initializeUsedBytes(KeyValueContainer container)
throws IOException {
KeyValueBlockIterator blockIter = new KeyValueBlockIterator(
container.getContainerData().getContainerID(),
new File(container.getContainerData().getContainerPath()));
long usedBytes = 0;
while (blockIter.hasNext()) {
BlockData block = blockIter.nextBlock();
long blockLen = 0;
List<ContainerProtos.ChunkInfo> chunkInfoList = block.getChunks();
for (ContainerProtos.ChunkInfo chunk : chunkInfoList) {
ChunkInfo info = ChunkInfo.getFromProtoBuf(chunk);
blockLen += info.getLen();
}
usedBytes += blockLen;
}
container.getContainerData().setBytesUsed(usedBytes);
}
}

91
hadoop-hdds/container-service/src/test/java/org/apache/hadoop/ozone/container/ozoneimpl/TestOzoneContainer.java
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@ -19,19 +19,27 @@
package org.apache.hadoop.ozone.container.ozoneimpl;
import com.google.common.base.Preconditions;
import com.google.common.primitives.Longs;
import org.apache.hadoop.conf.StorageUnit;
import org.apache.hadoop.hdds.HddsConfigKeys;
import org.apache.hadoop.hdds.client.BlockID;
import org.apache.hadoop.hdds.conf.OzoneConfiguration;
import org.apache.hadoop.hdds.protocol.DatanodeDetails;
import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos;
import org.apache.hadoop.hdds.scm.ScmConfigKeys;
import org.apache.hadoop.ozone.container.common.helpers.BlockData;
import org.apache.hadoop.ozone.container.common.helpers.ChunkInfo;
import org.apache.hadoop.ozone.container.common.impl.ContainerSet;
import org.apache.hadoop.ozone.container.common.statemachine.DatanodeStateMachine;
import org.apache.hadoop.ozone.container.common.statemachine.StateContext;
import org.apache.hadoop.ozone.container.common.utils.ContainerCache;
import org.apache.hadoop.ozone.container.common.volume.HddsVolume;
import org.apache.hadoop.ozone.container.common.volume.RoundRobinVolumeChoosingPolicy;
import org.apache.hadoop.ozone.container.common.volume.VolumeSet;
import org.apache.hadoop.ozone.container.keyvalue.KeyValueContainer;
import org.apache.hadoop.ozone.container.keyvalue.KeyValueContainerData;
import org.apache.hadoop.ozone.container.keyvalue.helpers.BlockUtils;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
@ -40,7 +48,9 @@
import java.util.Random;
import java.util.UUID;
import java.util.HashMap;
import java.util.List;
import java.util.ArrayList;
import static org.junit.Assert.assertEquals;
@ -52,7 +62,6 @@ public class TestOzoneContainer {
@Rule
public TemporaryFolder folder = new TemporaryFolder();
private OzoneConfiguration conf;
private String scmId = UUID.randomUUID().toString();
private VolumeSet volumeSet;
@ -60,6 +69,8 @@ public class TestOzoneContainer {
private KeyValueContainerData keyValueContainerData;
private KeyValueContainer keyValueContainer;
private final DatanodeDetails datanodeDetails = createDatanodeDetails();
private HashMap<String, Long> commitSpaceMap; //RootDir -> committed space
private final int numTestContainers = 10;
@Before
public void setUp() throws Exception {
@ -68,6 +79,7 @@ public void setUp() throws Exception {
.getAbsolutePath());
conf.set(HddsConfigKeys.OZONE_METADATA_DIRS,
folder.newFolder().getAbsolutePath());
commitSpaceMap = new HashMap<String, Long>();
}
@Test
@ -78,16 +90,32 @@ public void testBuildContainerMap() throws Exception {
// Format the volumes
for (HddsVolume volume : volumeSet.getVolumesList()) {
volume.format(UUID.randomUUID().toString());
commitSpaceMap.put(getVolumeKey(volume), Long.valueOf(0));
}
// Add containers to disk
for (int i=0; i<10; i++) {
for (int i = 0; i < numTestContainers; i++) {
long freeBytes = 0;
long volCommitBytes;
long maxCap = (long) StorageUnit.GB.toBytes(1);
HddsVolume myVolume;
keyValueContainerData = new KeyValueContainerData(i,
(long) StorageUnit.GB.toBytes(1), UUID.randomUUID().toString(),
maxCap, UUID.randomUUID().toString(),
datanodeDetails.getUuidString());
keyValueContainer = new KeyValueContainer(
keyValueContainerData, conf);
keyValueContainer.create(volumeSet, volumeChoosingPolicy, scmId);
myVolume = keyValueContainer.getContainerData().getVolume();
freeBytes = addBlocks(keyValueContainer, 2, 3);
// update our expectation of volume committed space in the map
volCommitBytes = commitSpaceMap.get(getVolumeKey(myVolume)).longValue();
Preconditions.checkState(freeBytes >= 0);
commitSpaceMap.put(getVolumeKey(myVolume),
Long.valueOf(volCommitBytes + freeBytes));
}
DatanodeStateMachine stateMachine = Mockito.mock(
@ -97,12 +125,65 @@ public void testBuildContainerMap() throws Exception {
Mockito.when(context.getParent()).thenReturn(stateMachine);
// When OzoneContainer is started, the containers from disk should be
// loaded into the containerSet.
// Also expected to initialize committed space for each volume.
OzoneContainer ozoneContainer = new
OzoneContainer(datanodeDetails, conf, context, null);
ContainerSet containerset = ozoneContainer.getContainerSet();
assertEquals(10, containerset.containerCount());
assertEquals(numTestContainers, containerset.containerCount());
verifyCommittedSpace(ozoneContainer);
}
//verify committed space on each volume
private void verifyCommittedSpace(OzoneContainer oc) {
for (HddsVolume dnVol : oc.getVolumeSet().getVolumesList()) {
String key = getVolumeKey(dnVol);
long expectedCommit = commitSpaceMap.get(key).longValue();
long volumeCommitted = dnVol.getCommittedBytes();
assertEquals("Volume committed space not initialized correctly",
expectedCommit, volumeCommitted);
}
}
private long addBlocks(KeyValueContainer container,
int blocks, int chunksPerBlock) throws Exception {
String strBlock = "block";
String strChunk = "-chunkFile";
int datalen = 65536;
long usedBytes = 0;
long freeBytes = container.getContainerData().getMaxSize();
long containerId = container.getContainerData().getContainerID();
ContainerCache.ReferenceCountedDB db = BlockUtils.getDB(container
.getContainerData(), conf);
for (int bi = 0; bi < blocks; bi++) {
// Creating BlockData
BlockID blockID = new BlockID(containerId, bi);
BlockData blockData = new BlockData(blockID);
List<ContainerProtos.ChunkInfo> chunkList = new ArrayList<>();
chunkList.clear();
for (int ci = 0; ci < chunksPerBlock; ci++) {
String chunkName = strBlock + bi + strChunk + ci;
long offset = ci * datalen;
ChunkInfo info = new ChunkInfo(chunkName, offset, datalen);
usedBytes += datalen;
chunkList.add(info.getProtoBufMessage());
}
blockData.setChunks(chunkList);
db.getStore().put(Longs.toByteArray(blockID.getLocalID()),
blockData.getProtoBufMessage().toByteArray());
}
// remaining available capacity of the container
return (freeBytes - usedBytes);
}
private String getVolumeKey(HddsVolume volume) {
return volume.getHddsRootDir().getPath();
}
private DatanodeDetails createDatanodeDetails() {
Random random = new Random();