本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager类的典型用法代码示例。如果您正苦于以下问题：Java SnapshotManager类的具体用法？Java SnapshotManager怎么用？Java SnapshotManager使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
SnapshotManager类属于org.apache.hadoop.hdfs.server.namenode.snapshot包，在下文中一共展示了SnapshotManager类的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: renameSnapshot
import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager; //导入依赖的package包/类
static void renameSnapshot(FSDirectory fsd, SnapshotManager snapshotManager,
String path, String snapshotOldName, String snapshotNewName,
boolean logRetryCache) throws IOException {
final INodesInPath iip = fsd.getINodesInPath4Write(path);
if (fsd.isPermissionEnabled()) {
FSPermissionChecker pc = fsd.getPermissionChecker();
fsd.checkOwner(pc, iip);
}
verifySnapshotName(fsd, snapshotNewName, path);
fsd.writeLock();
try {
snapshotManager.renameSnapshot(iip, path, snapshotOldName,
snapshotNewName);
} finally {
fsd.writeUnlock();
}
fsd.getEditLog().logRenameSnapshot(path, snapshotOldName,
snapshotNewName, logRetryCache);
}
示例2: getSnapshotDiffReport
import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager; //导入依赖的package包/类
static SnapshotDiffReport getSnapshotDiffReport(FSDirectory fsd,
SnapshotManager snapshotManager, String path,
String fromSnapshot, String toSnapshot) throws IOException {
SnapshotDiffReport diffs;
final FSPermissionChecker pc = fsd.getPermissionChecker();
fsd.readLock();
try {
if (fsd.isPermissionEnabled()) {
checkSubtreeReadPermission(fsd, pc, path, fromSnapshot);
checkSubtreeReadPermission(fsd, pc, path, toSnapshot);
}
INodesInPath iip = fsd.getINodesInPath(path, true);
diffs = snapshotManager.diff(iip, path, fromSnapshot, toSnapshot);
} finally {
fsd.readUnlock();
}
return diffs;
}
示例3: allowSnapshot
import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager; //导入依赖的package包/类
/** Allow snapshot on a directory. */
static void allowSnapshot(FSDirectory fsd, SnapshotManager snapshotManager,
String path) throws IOException {
fsd.writeLock();
try {
snapshotManager.setSnapshottable(path, true);
} finally {
fsd.writeUnlock();
}
fsd.getEditLog().logAllowSnapshot(path);
}
示例4: disallowSnapshot
import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager; //导入依赖的package包/类
static void disallowSnapshot(
FSDirectory fsd, SnapshotManager snapshotManager,
String path) throws IOException {
fsd.writeLock();
try {
snapshotManager.resetSnapshottable(path);
} finally {
fsd.writeUnlock();
}
fsd.getEditLog().logDisallowSnapshot(path);
}
示例5: createSnapshot
import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager; //导入依赖的package包/类
/**
* Create a snapshot
* @param snapshotRoot The directory path where the snapshot is taken
* @param snapshotName The name of the snapshot
*/
static String createSnapshot(
FSDirectory fsd, SnapshotManager snapshotManager, String snapshotRoot,
String snapshotName, boolean logRetryCache)
throws IOException {
final INodesInPath iip = fsd.getINodesInPath4Write(snapshotRoot);
if (fsd.isPermissionEnabled()) {
FSPermissionChecker pc = fsd.getPermissionChecker();
fsd.checkOwner(pc, iip);
}
if (snapshotName == null || snapshotName.isEmpty()) {
snapshotName = Snapshot.generateDefaultSnapshotName();
} else if (!DFSUtil.isValidNameForComponent(snapshotName)) {
throw new InvalidPathException("Invalid snapshot name: " + snapshotName);
}
String snapshotPath = null;
verifySnapshotName(fsd, snapshotName, snapshotRoot);
fsd.writeLock();
try {
snapshotPath = snapshotManager.createSnapshot(iip, snapshotRoot,
snapshotName);
} finally {
fsd.writeUnlock();
}
fsd.getEditLog().logCreateSnapshot(snapshotRoot, snapshotName,
logRetryCache);
return snapshotPath;
}
示例6: getSnapshottableDirListing
import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager; //导入依赖的package包/类
static SnapshottableDirectoryStatus[] getSnapshottableDirListing(
FSDirectory fsd, SnapshotManager snapshotManager) throws IOException {
FSPermissionChecker pc = fsd.getPermissionChecker();
fsd.readLock();
try {
final String user = pc.isSuperUser()? null : pc.getUser();
return snapshotManager.getSnapshottableDirListing(user);
} finally {
fsd.readUnlock();
}
}
示例7: deleteSnapshot
import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager; //导入依赖的package包/类
/**
* Delete a snapshot of a snapshottable directory
* @param snapshotRoot The snapshottable directory
* @param snapshotName The name of the to-be-deleted snapshot
* @throws IOException
*/
static INode.BlocksMapUpdateInfo deleteSnapshot(
FSDirectory fsd, SnapshotManager snapshotManager, String snapshotRoot,
String snapshotName, boolean logRetryCache)
throws IOException {
final INodesInPath iip = fsd.getINodesInPath4Write(snapshotRoot);
if (fsd.isPermissionEnabled()) {
FSPermissionChecker pc = fsd.getPermissionChecker();
fsd.checkOwner(pc, iip);
}
INode.BlocksMapUpdateInfo collectedBlocks = new INode.BlocksMapUpdateInfo();
ChunkedArrayList<INode> removedINodes = new ChunkedArrayList<INode>();
fsd.writeLock();
try {
snapshotManager.deleteSnapshot(iip, snapshotName, collectedBlocks,
removedINodes);
fsd.removeFromInodeMap(removedINodes);
} finally {
fsd.writeUnlock();
}
removedINodes.clear();
fsd.getEditLog().logDeleteSnapshot(snapshotRoot, snapshotName,
logRetryCache);
return collectedBlocks;
}
示例8: deleteSnapshot
import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager; //导入依赖的package包/类
/**
* Delete a snapshot of a snapshottable directory
* @param snapshotRoot The snapshottable directory
* @param snapshotName The name of the to-be-deleted snapshot
* @throws IOException
*/
static INode.BlocksMapUpdateInfo deleteSnapshot(
FSDirectory fsd, SnapshotManager snapshotManager, String snapshotRoot,
String snapshotName, boolean logRetryCache)
throws IOException {
final INodesInPath iip = fsd.getINodesInPath4Write(snapshotRoot);
if (fsd.isPermissionEnabled()) {
FSPermissionChecker pc = fsd.getPermissionChecker();
fsd.checkOwner(pc, iip);
}
INode.BlocksMapUpdateInfo collectedBlocks = new INode.BlocksMapUpdateInfo();
ChunkedArrayList<INode> removedINodes = new ChunkedArrayList<>();
INode.ReclaimContext context = new INode.ReclaimContext(
fsd.getBlockStoragePolicySuite(), collectedBlocks, removedINodes, null);
fsd.writeLock();
try {
snapshotManager.deleteSnapshot(iip, snapshotName, context);
fsd.updateCount(iip, context.quotaDelta(), false);
fsd.removeFromInodeMap(removedINodes);
fsd.updateReplicationFactor(context.collectedBlocks()
.toUpdateReplicationInfo());
} finally {
fsd.writeUnlock();
}
removedINodes.clear();
fsd.getEditLog().logDeleteSnapshot(snapshotRoot, snapshotName,
logRetryCache);
return collectedBlocks;
}
示例9: getSnapshotManager
import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager; //导入依赖的package包/类
public SnapshotManager getSnapshotManager() {
return snapshotManager;
}