本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.AddBlockOp类的典型用法代码示例。如果您正苦于以下问题：Java AddBlockOp类的具体用法？Java AddBlockOp怎么用？Java AddBlockOp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。
AddBlockOp类属于org.apache.hadoop.hdfs.server.namenode.FSEditLogOp包，在下文中一共展示了AddBlockOp类的5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: addNewBlock
import org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.AddBlockOp; //导入依赖的package包/类
/**
* Add a new block into the given INodeFile
*/
private void addNewBlock(FSDirectory fsDir, AddBlockOp op, INodeFile file)
throws IOException {
BlockInfoContiguous[] oldBlocks = file.getBlocks();
Block pBlock = op.getPenultimateBlock();
Block newBlock= op.getLastBlock();
if (pBlock != null) { // the penultimate block is not null
Preconditions.checkState(oldBlocks != null && oldBlocks.length > 0);
// compare pBlock with the last block of oldBlocks
Block oldLastBlock = oldBlocks[oldBlocks.length - 1];
if (oldLastBlock.getBlockId() != pBlock.getBlockId()
|| oldLastBlock.getGenerationStamp() != pBlock.getGenerationStamp()) {
throw new IOException(
"Mismatched block IDs or generation stamps for the old last block of file "
+ op.getPath() + ", the old last block is " + oldLastBlock
+ ", and the block read from editlog is " + pBlock);
}
oldLastBlock.setNumBytes(pBlock.getNumBytes());
if (oldLastBlock instanceof BlockInfoContiguousUnderConstruction) {
fsNamesys.getBlockManager().forceCompleteBlock(file,
(BlockInfoContiguousUnderConstruction) oldLastBlock);
fsNamesys.getBlockManager().processQueuedMessagesForBlock(pBlock);
}
} else { // the penultimate block is null
Preconditions.checkState(oldBlocks == null || oldBlocks.length == 0);
}
// add the new block
BlockInfoContiguous newBI = new BlockInfoContiguousUnderConstruction(
newBlock, file.getBlockReplication());
fsNamesys.getBlockManager().addBlockCollection(newBI, file);
file.addBlock(newBI);
fsNamesys.getBlockManager().processQueuedMessagesForBlock(newBlock);
}
示例2: logAddBlock
import org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.AddBlockOp; //导入依赖的package包/类
public void logAddBlock(String path, INodeFile file) {
Preconditions.checkArgument(file.isUnderConstruction());
BlockInfoContiguous[] blocks = file.getBlocks();
Preconditions.checkState(blocks != null && blocks.length > 0);
BlockInfoContiguous pBlock = blocks.length > 1 ? blocks[blocks.length - 2] : null;
BlockInfoContiguous lastBlock = blocks[blocks.length - 1];
AddBlockOp op = AddBlockOp.getInstance(cache.get()).setPath(path)
.setPenultimateBlock(pBlock).setLastBlock(lastBlock);
logEdit(op);
}
示例3: logAddBlock
import org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.AddBlockOp; //导入依赖的package包/类
public void logAddBlock(String path, INodeFile file) {
Preconditions.checkArgument(file.isUnderConstruction());
BlockInfo[] blocks = file.getBlocks();
Preconditions.checkState(blocks != null && blocks.length > 0);
BlockInfo pBlock = blocks.length > 1 ? blocks[blocks.length - 2] : null;
BlockInfo lastBlock = blocks[blocks.length - 1];
AddBlockOp op = AddBlockOp.getInstance(cache.get()).setPath(path)
.setPenultimateBlock(pBlock).setLastBlock(lastBlock);
logEdit(op);
}
示例4: addNewBlock
import org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.AddBlockOp; //导入依赖的package包/类
/**
* Add a new block into the given INodeFile
*/
private void addNewBlock(FSDirectory fsDir, AddBlockOp op, INodeFile file)
throws IOException {
BlockInfo[] oldBlocks = file.getBlocks();
Block pBlock = op.getPenultimateBlock();
Block newBlock= op.getLastBlock();
if (pBlock != null) { // the penultimate block is not null
Preconditions.checkState(oldBlocks != null && oldBlocks.length > 0);
// compare pBlock with the last block of oldBlocks
Block oldLastBlock = oldBlocks[oldBlocks.length - 1];
if (oldLastBlock.getBlockId() != pBlock.getBlockId()
|| oldLastBlock.getGenerationStamp() != pBlock.getGenerationStamp()) {
throw new IOException(
"Mismatched block IDs or generation stamps for the old last block of file "
+ op.getPath() + ", the old last block is " + oldLastBlock
+ ", and the block read from editlog is " + pBlock);
}
oldLastBlock.setNumBytes(pBlock.getNumBytes());
if (oldLastBlock instanceof BlockInfoUnderConstruction) {
fsNamesys.getBlockManager().forceCompleteBlock(file,
(BlockInfoUnderConstruction) oldLastBlock);
fsNamesys.getBlockManager().processQueuedMessagesForBlock(pBlock);
}
} else { // the penultimate block is null
Preconditions.checkState(oldBlocks == null || oldBlocks.length == 0);
}
// add the new block
BlockInfo newBI = new BlockInfoUnderConstruction(
newBlock, file.getBlockReplication());
fsNamesys.getBlockManager().addBlockCollection(newBI, file);
file.addBlock(newBI);
fsNamesys.getBlockManager().processQueuedMessagesForBlock(newBlock);
}
示例5: addNewBlock
import org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.AddBlockOp; //导入依赖的package包/类
/**
* Add a new block into the given INodeFile
*/
private void addNewBlock(AddBlockOp op, INodeFile file,
ErasureCodingPolicy ecPolicy) throws IOException {
BlockInfo[] oldBlocks = file.getBlocks();
Block pBlock = op.getPenultimateBlock();
Block newBlock= op.getLastBlock();
if (pBlock != null) { // the penultimate block is not null
assert oldBlocks != null && oldBlocks.length > 0;
// compare pBlock with the last block of oldBlocks
BlockInfo oldLastBlock = oldBlocks[oldBlocks.length - 1];
if (oldLastBlock.getBlockId() != pBlock.getBlockId()
|| oldLastBlock.getGenerationStamp() != pBlock.getGenerationStamp()) {
throw new IOException(
"Mismatched block IDs or generation stamps for the old last block of file "
+ op.getPath() + ", the old last block is " + oldLastBlock
+ ", and the block read from editlog is " + pBlock);
}
oldLastBlock.setNumBytes(pBlock.getNumBytes());
if (!oldLastBlock.isComplete()) {
fsNamesys.getBlockManager().forceCompleteBlock(oldLastBlock);
fsNamesys.getBlockManager().processQueuedMessagesForBlock(pBlock);
}
} else { // the penultimate block is null
Preconditions.checkState(oldBlocks == null || oldBlocks.length == 0);
}
// add the new block
final BlockInfo newBlockInfo;
boolean isStriped = ecPolicy != null;
if (isStriped) {
newBlockInfo = new BlockInfoStriped(newBlock, ecPolicy);
} else {
newBlockInfo = new BlockInfoContiguous(newBlock,
file.getPreferredBlockReplication());
}
newBlockInfo.convertToBlockUnderConstruction(
BlockUCState.UNDER_CONSTRUCTION, null);
fsNamesys.getBlockManager().addBlockCollectionWithCheck(newBlockInfo, file);
file.addBlock(newBlockInfo);
fsNamesys.getBlockManager().processQueuedMessagesForBlock(newBlock);
}