本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotFSImageFormat.loadSnapshotList方法的典型用法代码示例。如果您正苦于以下问题：Java SnapshotFSImageFormat.loadSnapshotList方法的具体用法？Java SnapshotFSImageFormat.loadSnapshotList怎么用？Java SnapshotFSImageFormat.loadSnapshotList使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotFSImageFormat的用法示例。
在下文中一共展示了SnapshotFSImageFormat.loadSnapshotList方法的2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: loadDirectoryWithSnapshot
import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotFSImageFormat; //导入方法依赖的package包/类
/**
* Load a directory when snapshot is supported.
* @param in The {@link DataInput} instance to read.
* @param counter Counter to increment for namenode startup progress
*/
private void loadDirectoryWithSnapshot(DataInput in, Counter counter)
throws IOException {
// Step 1. Identify the parent INode
long inodeId = in.readLong();
final INodeDirectory parent = this.namesystem.dir.getInode(inodeId)
.asDirectory();
// Check if the whole subtree has been saved (for reference nodes)
boolean toLoadSubtree = referenceMap.toProcessSubtree(parent.getId());
if (!toLoadSubtree) {
return;
}
// Step 2. Load snapshots if parent is snapshottable
int numSnapshots = in.readInt();
if (numSnapshots >= 0) {
// load snapshots and snapshotQuota
SnapshotFSImageFormat.loadSnapshotList(parent, numSnapshots, in, this);
if (parent.getDirectorySnapshottableFeature().getSnapshotQuota() > 0) {
// add the directory to the snapshottable directory list in
// SnapshotManager. Note that we only add root when its snapshot quota
// is positive.
this.namesystem.getSnapshotManager().addSnapshottable(parent);
}
}
// Step 3. Load children nodes under parent
loadChildren(parent, in, counter);
// Step 4. load Directory Diff List
SnapshotFSImageFormat.loadDirectoryDiffList(parent, in, this);
// Recursively load sub-directories, including snapshot copies of deleted
// directories
int numSubTree = in.readInt();
for (int i = 0; i < numSubTree; i++) {
loadDirectoryWithSnapshot(in, counter);
}
}
示例2: loadDirectoryWithSnapshot
import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotFSImageFormat; //导入方法依赖的package包/类
/**
* Load a directory when snapshot is supported.
* @param in The {@link DataInput} instance to read.
* @param counter Counter to increment for namenode startup progress
*/
private void loadDirectoryWithSnapshot(DataInput in, Counter counter)
throws IOException {
// Step 1. Identify the parent INode
long inodeId = in.readLong();
final INodeDirectory parent = this.namesystem.dir.getInode(inodeId)
.asDirectory();
// Check if the whole subtree has been saved (for reference nodes)
boolean toLoadSubtree = referenceMap.toProcessSubtree(parent.getId());
if (!toLoadSubtree) {
return;
}
// Step 2. Load snapshots if parent is snapshottable
int numSnapshots = in.readInt();
if (numSnapshots >= 0) {
final INodeDirectorySnapshottable snapshottableParent
= INodeDirectorySnapshottable.valueOf(parent, parent.getLocalName());
// load snapshots and snapshotQuota
SnapshotFSImageFormat.loadSnapshotList(snapshottableParent,
numSnapshots, in, this);
if (snapshottableParent.getSnapshotQuota() > 0) {
// add the directory to the snapshottable directory list in
// SnapshotManager. Note that we only add root when its snapshot quota
// is positive.
this.namesystem.getSnapshotManager().addSnapshottable(
snapshottableParent);
}
}
// Step 3. Load children nodes under parent
loadChildren(parent, in, counter);
// Step 4. load Directory Diff List
SnapshotFSImageFormat.loadDirectoryDiffList(parent, in, this);
// Recursively load sub-directories, including snapshot copies of deleted
// directories
int numSubTree = in.readInt();
for (int i = 0; i < numSubTree; i++) {
loadDirectoryWithSnapshot(in, counter);
}
}