本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.AddBlockOp.getLastBlock方法的典型用法代码示例。如果您正苦于以下问题：Java AddBlockOp.getLastBlock方法的具体用法？Java AddBlockOp.getLastBlock怎么用？Java AddBlockOp.getLastBlock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.FSEditLogOp.AddBlockOp的用法示例。
在下文中一共展示了AddBlockOp.getLastBlock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: addNewBlock
import org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.AddBlockOp; //导入方法依赖的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: addNewBlock
import org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.AddBlockOp; //导入方法依赖的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);
}