Apache
/
hadoop
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

HDDS-2048: State check during container state transition in datanode should be lock protected (#1375)

This commit is contained in:
Lokesh Jain 2019-09-10 14:14:52 +05:30 committed by Nanda kumar
parent bc2d3a71d6
commit c3beeb7761
3 changed files with 94 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueContainer.java
View File

@ -82,7 +82,9 @@ import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Class to perform KeyValue Container operations.
* Class to perform KeyValue Container operations. Any modifications to
* KeyValueContainer object should ideally be done via api exposed in
* KeyValueHandler class.
*/
public class KeyValueContainer implements Container<KeyValueContainerData> {
@ -554,6 +556,8 @@ public class KeyValueContainer implements Container<KeyValueContainerData> {
* Acquire write lock.
*/
public void writeLock() {
// TODO: The lock for KeyValueContainer object should not be exposed
// publicly.
this.lock.writeLock().lock();
}

46
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueHandler.java
View File

@ -881,16 +881,23 @@ public class KeyValueHandler extends Handler {
@Override
public void markContainerForClose(Container container)
throws IOException {
container.writeLock();
try {
// Move the container to CLOSING state only if it's OPEN
if (container.getContainerState() == State.OPEN) {
container.markContainerForClose();
sendICR(container);
}
} finally {
container.writeUnlock();
}
}
@Override
public void markContainerUnhealthy(Container container)
throws IOException {
container.writeLock();
try {
if (container.getContainerState() != State.UNHEALTHY) {
try {
container.markContainerUnhealthy();
@ -898,17 +905,22 @@ public class KeyValueHandler extends Handler {
// explicitly catch IOException here since the this operation
// will fail if the Rocksdb metadata is corrupted.
long id = container.getContainerData().getContainerID();
LOG.warn("Unexpected error while marking container "
+id+ " as unhealthy", ex);
LOG.warn("Unexpected error while marking container " + id
+ " as unhealthy", ex);
} finally {
sendICR(container);
}
}
} finally {
container.writeUnlock();
}
}
@Override
public void quasiCloseContainer(Container container)
throws IOException {
container.writeLock();
try {
final State state = container.getContainerState();
// Quasi close call is idempotent.
if (state == State.QUASI_CLOSED) {
@ -916,19 +928,25 @@ public class KeyValueHandler extends Handler {
}
// The container has to be in CLOSING state.
if (state != State.CLOSING) {
ContainerProtos.Result error = state == State.INVALID ?
INVALID_CONTAINER_STATE : CONTAINER_INTERNAL_ERROR;
throw new StorageContainerException("Cannot quasi close container #" +
container.getContainerData().getContainerID() + " while in " +
state + " state.", error);
ContainerProtos.Result error =
state == State.INVALID ? INVALID_CONTAINER_STATE :
CONTAINER_INTERNAL_ERROR;
throw new StorageContainerException(
"Cannot quasi close container #" + container.getContainerData()
.getContainerID() + " while in " + state + " state.", error);
}
container.quasiClose();
sendICR(container);
} finally {
container.writeUnlock();
}
}
@Override
public void closeContainer(Container container)
throws IOException {
container.writeLock();
try {
final State state = container.getContainerState();
// Close call is idempotent.
if (state == State.CLOSED) {
@ -942,14 +960,18 @@ public class KeyValueHandler extends Handler {
}
// The container has to be either in CLOSING or in QUASI_CLOSED state.
if (state != State.CLOSING && state != State.QUASI_CLOSED) {
ContainerProtos.Result error = state == State.INVALID ?
INVALID_CONTAINER_STATE : CONTAINER_INTERNAL_ERROR;
throw new StorageContainerException("Cannot close container #" +
container.getContainerData().getContainerID() + " while in " +
state + " state.", error);
ContainerProtos.Result error =
state == State.INVALID ? INVALID_CONTAINER_STATE :
CONTAINER_INTERNAL_ERROR;
throw new StorageContainerException(
"Cannot close container #" + container.getContainerData()
.getContainerID() + " while in " + state + " state.", error);
}
container.close();
sendICR(container);
} finally {
container.writeUnlock();
}
}
@Override

12
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/impl/BlockManagerImpl.java
View File

@ -258,14 +258,15 @@ public class BlockManagerImpl implements BlockManager {
Preconditions.checkArgument(count > 0,
"Count must be a positive number.");
container.readLock();
try {
List<BlockData> result = null;
KeyValueContainerData cData = (KeyValueContainerData) container
.getContainerData();
KeyValueContainerData cData =
(KeyValueContainerData) container.getContainerData();
try (ReferenceCountedDB db = BlockUtils.getDB(cData, config)) {
result = new ArrayList<>();
byte[] startKeyInBytes = Longs.toByteArray(startLocalID);
List<Map.Entry<byte[], byte[]>> range =
db.getStore().getSequentialRangeKVs(startKeyInBytes, count,
List<Map.Entry<byte[], byte[]>> range = db.getStore()
.getSequentialRangeKVs(startKeyInBytes, count,
MetadataKeyFilters.getNormalKeyFilter());
for (Map.Entry<byte[], byte[]> entry : range) {
BlockData value = BlockUtils.getBlockData(entry.getValue());
@ -274,6 +275,9 @@ public class BlockManagerImpl implements BlockManager {
}
return result;
}
} finally {
container.readUnlock();
}
}
/**