本文整理汇总了Java中org.apache.hadoop.hdfs.server.datanode.ReplicaBeingWritten.setLastChecksumAndDataLen方法的典型用法代码示例。如果您正苦于以下问题：Java ReplicaBeingWritten.setLastChecksumAndDataLen方法的具体用法？Java ReplicaBeingWritten.setLastChecksumAndDataLen怎么用？Java ReplicaBeingWritten.setLastChecksumAndDataLen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.datanode.ReplicaBeingWritten的用法示例。
在下文中一共展示了ReplicaBeingWritten.setLastChecksumAndDataLen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: recoverRbw
import org.apache.hadoop.hdfs.server.datanode.ReplicaBeingWritten; //导入方法依赖的package包/类
@Override // FsDatasetSpi
public synchronized ReplicaHandler recoverRbw(
ExtendedBlock b, long newGS, long minBytesRcvd, long maxBytesRcvd)
throws IOException {
LOG.info("Recover RBW replica " + b);
ReplicaInfo replicaInfo = getReplicaInfo(b.getBlockPoolId(), b.getBlockId());
// check the replica's state
if (replicaInfo.getState() != ReplicaState.RBW) {
throw new ReplicaNotFoundException(
ReplicaNotFoundException.NON_RBW_REPLICA + replicaInfo);
}
ReplicaBeingWritten rbw = (ReplicaBeingWritten)replicaInfo;
LOG.info("Recovering " + rbw);
// Stop the previous writer
rbw.stopWriter(datanode.getDnConf().getXceiverStopTimeout());
rbw.setWriter(Thread.currentThread());
// check generation stamp
long replicaGenerationStamp = rbw.getGenerationStamp();
if (replicaGenerationStamp < b.getGenerationStamp() ||
replicaGenerationStamp > newGS) {
throw new ReplicaNotFoundException(
ReplicaNotFoundException.UNEXPECTED_GS_REPLICA + b +
". Expected GS range is [" + b.getGenerationStamp() + ", " +
newGS + "].");
}
// check replica length
long bytesAcked = rbw.getBytesAcked();
long numBytes = rbw.getNumBytes();
if (bytesAcked < minBytesRcvd || numBytes > maxBytesRcvd){
throw new ReplicaNotFoundException("Unmatched length replica " +
replicaInfo + ": BytesAcked = " + bytesAcked +
" BytesRcvd = " + numBytes + " are not in the range of [" +
minBytesRcvd + ", " + maxBytesRcvd + "].");
}
FsVolumeReference ref = rbw.getVolume().obtainReference();
try {
// Truncate the potentially corrupt portion.
// If the source was client and the last node in the pipeline was lost,
// any corrupt data written after the acked length can go unnoticed.
if (numBytes > bytesAcked) {
final File replicafile = rbw.getBlockFile();
truncateBlock(replicafile, rbw.getMetaFile(), numBytes, bytesAcked);
rbw.setNumBytes(bytesAcked);
rbw.setLastChecksumAndDataLen(bytesAcked, null);
}
// bump the replica's generation stamp to newGS
bumpReplicaGS(rbw, newGS);
} catch (IOException e) {
IOUtils.cleanup(null, ref);
throw e;
}
return new ReplicaHandler(rbw, ref);
}
示例2: recoverRbw
import org.apache.hadoop.hdfs.server.datanode.ReplicaBeingWritten; //导入方法依赖的package包/类
@Override // FsDatasetSpi
public synchronized ReplicaInPipeline recoverRbw(ExtendedBlock b,
long newGS, long minBytesRcvd, long maxBytesRcvd)
throws IOException {
LOG.info("Recover RBW replica " + b);
ReplicaInfo replicaInfo = getReplicaInfo(b.getBlockPoolId(), b.getBlockId());
// check the replica's state
if (replicaInfo.getState() != ReplicaState.RBW) {
throw new ReplicaNotFoundException(
ReplicaNotFoundException.NON_RBW_REPLICA + replicaInfo);
}
ReplicaBeingWritten rbw = (ReplicaBeingWritten)replicaInfo;
LOG.info("Recovering " + rbw);
// Stop the previous writer
rbw.stopWriter(datanode.getDnConf().getXceiverStopTimeout());
rbw.setWriter(Thread.currentThread());
// check generation stamp
long replicaGenerationStamp = rbw.getGenerationStamp();
if (replicaGenerationStamp < b.getGenerationStamp() ||
replicaGenerationStamp > newGS) {
throw new ReplicaNotFoundException(
ReplicaNotFoundException.UNEXPECTED_GS_REPLICA + b +
". Expected GS range is [" + b.getGenerationStamp() + ", " +
newGS + "].");
}
// check replica length
long bytesAcked = rbw.getBytesAcked();
long numBytes = rbw.getNumBytes();
if (bytesAcked < minBytesRcvd || numBytes > maxBytesRcvd){
throw new ReplicaNotFoundException("Unmatched length replica " +
replicaInfo + ": BytesAcked = " + bytesAcked +
" BytesRcvd = " + numBytes + " are not in the range of [" +
minBytesRcvd + ", " + maxBytesRcvd + "].");
}
// Truncate the potentially corrupt portion.
// If the source was client and the last node in the pipeline was lost,
// any corrupt data written after the acked length can go unnoticed.
if (numBytes > bytesAcked) {
final File replicafile = rbw.getBlockFile();
truncateBlock(replicafile, rbw.getMetaFile(), numBytes, bytesAcked);
rbw.setNumBytes(bytesAcked);
rbw.setLastChecksumAndDataLen(bytesAcked, null);
}
// bump the replica's generation stamp to newGS
bumpReplicaGS(rbw, newGS);
return rbw;
}