本文整理汇总了Java中org.apache.hadoop.mapred.Merger.Segment.close方法的典型用法代码示例。如果您正苦于以下问题：Java Segment.close方法的具体用法？Java Segment.close怎么用？Java Segment.close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.mapred.Merger.Segment的用法示例。
在下文中一共展示了Segment.close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: mark
import org.apache.hadoop.mapred.Merger.Segment; //导入方法依赖的package包/类
public void mark() throws IOException {
// We read one KV pair in advance in hasNext.
// If hasNext has read the next KV pair from a new segment, but the
// user has not called next() for that KV, then reset the readSegmentIndex
// to the previous segment
if (nextKVOffset == 0) {
assert (readSegmentIndex != 0);
assert (currentKVOffset != 0);
readSegmentIndex --;
}
// just drop segments before the current active segment
int i = 0;
Iterator<Segment<K,V>> itr = segmentList.iterator();
while (itr.hasNext()) {
Segment<K,V> s = itr.next();
if (i == readSegmentIndex) {
break;
}
s.close();
itr.remove();
i++;
LOG.debug("Dropping a segment");
}
// FirstSegmentOffset is the offset in the current segment from where we
// need to start reading on the next reset
firstSegmentOffset = currentKVOffset;
readSegmentIndex = 0;
LOG.debug("Setting the FirsSegmentOffset to " + currentKVOffset);
}
示例2: clearSegmentList
import org.apache.hadoop.mapred.Merger.Segment; //导入方法依赖的package包/类
private void clearSegmentList() throws IOException {
for (Segment<K,V> segment: segmentList) {
long len = segment.getLength();
segment.close();
if (segment.inMemory()) {
memCache.unreserve(len);
}
}
segmentList.clear();
}