本文整理汇总了Java中org.apache.hadoop.hdfs.server.datanode.ReplicaUnderRecovery.unlinkBlock方法的典型用法代码示例。如果您正苦于以下问题：Java ReplicaUnderRecovery.unlinkBlock方法的具体用法？Java ReplicaUnderRecovery.unlinkBlock怎么用？Java ReplicaUnderRecovery.unlinkBlock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.ReplicaUnderRecovery的用法示例。
在下文中一共展示了ReplicaUnderRecovery.unlinkBlock方法的3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: updateReplicaUnderRecovery
import org.apache.hadoop.hdfs.server.datanode.ReplicaUnderRecovery; //导入方法依赖的package包/类
private FinalizedReplica updateReplicaUnderRecovery(
String bpid,
ReplicaUnderRecovery rur,
long recoveryId,
long newlength) throws IOException {
//check recovery id
if (rur.getRecoveryID() != recoveryId) {
throw new IOException("rur.getRecoveryID() != recoveryId = " + recoveryId
+ ", rur=" + rur);
}
// bump rur's GS to be recovery id
bumpReplicaGS(rur, recoveryId);
//update length
final File replicafile = rur.getBlockFile();
if (rur.getNumBytes() < newlength) {
throw new IOException("rur.getNumBytes() < newlength = " + newlength
+ ", rur=" + rur);
}
if (rur.getNumBytes() > newlength) {
rur.unlinkBlock(1);
truncateBlock(replicafile, rur.getMetaFile(), rur.getNumBytes(), newlength);
// update RUR with the new length
rur.setNumBytes(newlength);
}
// finalize the block
return finalizeReplica(bpid, rur);
}
示例2: updateReplicaUnderRecovery
import org.apache.hadoop.hdfs.server.datanode.ReplicaUnderRecovery; //导入方法依赖的package包/类
private FinalizedReplica updateReplicaUnderRecovery(String bpid,
ReplicaUnderRecovery rur, long recoveryId, long newlength)
throws IOException {
//check recovery id
if (rur.getRecoveryID() != recoveryId) {
throw new IOException(
"rur.getRecoveryID() != recoveryId = " + recoveryId + ", rur=" + rur);
}
// bump rur's GS to be recovery id
bumpReplicaGS(rur, recoveryId);
//update length
final File replicafile = rur.getBlockFile();
if (rur.getNumBytes() < newlength) {
throw new IOException(
"rur.getNumBytes() < newlength = " + newlength + ", rur=" + rur);
}
if (rur.getNumBytes() > newlength) {
rur.unlinkBlock(1);
truncateBlock(replicafile, rur.getMetaFile(), rur.getNumBytes(),
newlength);
// update RUR with the new length
rur.setNumBytesNoPersistance(newlength);
}
// finalize the block
return finalizeReplica(bpid, rur);
}
示例3: updateReplicaUnderRecovery
import org.apache.hadoop.hdfs.server.datanode.ReplicaUnderRecovery; //导入方法依赖的package包/类
private FinalizedReplica updateReplicaUnderRecovery(
String bpid,
ReplicaUnderRecovery rur,
long recoveryId,
long newBlockId,
long newlength) throws IOException {
//check recovery id
if (rur.getRecoveryID() != recoveryId) {
throw new IOException("rur.getRecoveryID() != recoveryId = " + recoveryId
+ ", rur=" + rur);
}
boolean copyOnTruncate = newBlockId > 0L && rur.getBlockId() != newBlockId;
File blockFile;
File metaFile;
// bump rur's GS to be recovery id
if(!copyOnTruncate) {
bumpReplicaGS(rur, recoveryId);
blockFile = rur.getBlockFile();
metaFile = rur.getMetaFile();
} else {
File[] copiedReplicaFiles =
copyReplicaWithNewBlockIdAndGS(rur, bpid, newBlockId, recoveryId);
blockFile = copiedReplicaFiles[1];
metaFile = copiedReplicaFiles[0];
}
//update length
if (rur.getNumBytes() < newlength) {
throw new IOException("rur.getNumBytes() < newlength = " + newlength
+ ", rur=" + rur);
}
if (rur.getNumBytes() > newlength) {
rur.unlinkBlock(1);
truncateBlock(blockFile, metaFile, rur.getNumBytes(), newlength);
if(!copyOnTruncate) {
// update RUR with the new length
rur.setNumBytes(newlength);
} else {
// Copying block to a new block with new blockId.
// Not truncating original block.
ReplicaBeingWritten newReplicaInfo = new ReplicaBeingWritten(
newBlockId, recoveryId, rur.getVolume(), blockFile.getParentFile(),
newlength);
newReplicaInfo.setNumBytes(newlength);
volumeMap.add(bpid, newReplicaInfo);
finalizeReplica(bpid, newReplicaInfo);
}
}
// finalize the block
return finalizeReplica(bpid, rur);
}