本文整理汇总了Java中org.apache.hadoop.hdfs.util.LightWeightHashSet.pollN方法的典型用法代码示例。如果您正苦于以下问题：Java LightWeightHashSet.pollN方法的具体用法？Java LightWeightHashSet.pollN怎么用？Java LightWeightHashSet.pollN使用的例子？那么, 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.util.LightWeightHashSet的用法示例。
在下文中一共展示了LightWeightHashSet.pollN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: invalidateWork
import org.apache.hadoop.hdfs.util.LightWeightHashSet; //导入方法依赖的package包/类
private synchronized List<Block> invalidateWork(
final String storageId, final DatanodeDescriptor dn) {
final LightWeightHashSet<Block> set = node2blocks.get(storageId);
if (set == null) {
return null;
}
// # blocks that can be sent in one message is limited
final int limit = datanodeManager.blockInvalidateLimit;
final List<Block> toInvalidate = set.pollN(limit);
// If we send everything in this message, remove this node entry
if (set.isEmpty()) {
remove(storageId);
}
dn.addBlocksToBeInvalidated(toInvalidate);
numBlocks -= toInvalidate.size();
return toInvalidate;
}
示例2: invalidateWork
import org.apache.hadoop.hdfs.util.LightWeightHashSet; //导入方法依赖的package包/类
synchronized List<Block> invalidateWork(final DatanodeDescriptor dn) {
final long delay = getInvalidationDelay();
if (delay > 0) {
if (BlockManager.LOG.isDebugEnabled()) {
BlockManager.LOG
.debug("Block deletion is delayed during NameNode startup. "
+ "The deletion will start after " + delay + " ms.");
}
return null;
}
final LightWeightHashSet<Block> set = node2blocks.get(dn);
if (set == null) {
return null;
}
// # blocks that can be sent in one message is limited
final int limit = blockInvalidateLimit;
final List<Block> toInvalidate = set.pollN(limit);
// If we send everything in this message, remove this node entry
if (set.isEmpty()) {
remove(dn);
}
dn.addBlocksToBeInvalidated(toInvalidate);
numBlocks -= toInvalidate.size();
return toInvalidate;
}
示例3: invalidateWork
import org.apache.hadoop.hdfs.util.LightWeightHashSet; //导入方法依赖的package包/类
synchronized List<Block> invalidateWork(final DatanodeDescriptor dn) {
final long delay = getInvalidationDelay();
if (delay > 0) {
if (BlockManager.LOG.isDebugEnabled()) {
BlockManager.LOG
.debug("Block deletion is delayed during NameNode startup. "
+ "The deletion will start after " + delay + " ms.");
}
return null;
}
final LightWeightHashSet<Block> set = node2blocks.get(dn);
if (set == null) {
return null;
}
// # blocks that can be sent in one message is limited
final int limit = blockInvalidateLimit;
final List<Block> toInvalidate = set.pollN(limit);
// If we send everything in this message, remove this node entry
if (set.isEmpty()) {
remove(dn);
}
dn.addBlocksToBeInvalidated(toInvalidate);
numBlocks -= toInvalidate.size();
return toInvalidate;
}