本文整理汇总了Java中org.apache.hadoop.hbase.regionserver.HRegion.mergeAdjacent方法的典型用法代码示例。如果您正苦于以下问题：Java HRegion.mergeAdjacent方法的具体用法？Java HRegion.mergeAdjacent怎么用？Java HRegion.mergeAdjacent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.hbase.regionserver.HRegion的用法示例。
在下文中一共展示了HRegion.mergeAdjacent方法的1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: merge
import org.apache.hadoop.hbase.regionserver.HRegion; //导入方法依赖的package包/类
protected boolean merge(final HRegionInfo[] info) throws IOException {
if (info.length < 2) {
LOG.info("only one region - nothing to merge");
return false;
}
HRegion currentRegion = null;
long currentSize = 0;
HRegion nextRegion = null;
long nextSize = 0;
for (int i = 0; i < info.length - 1; i++) {
if (currentRegion == null) {
currentRegion = HRegion.openHRegion(conf, fs, this.rootDir, info[i], this.htd,
walFactory.getWAL(info[i].getEncodedNameAsBytes()));
currentSize = currentRegion.getLargestHStoreSize();
}
nextRegion = HRegion.openHRegion(conf, fs, this.rootDir, info[i + 1], this.htd,
walFactory.getWAL(info[i+1].getEncodedNameAsBytes()));
nextSize = nextRegion.getLargestHStoreSize();
if ((currentSize + nextSize) <= (maxFilesize / 2)) {
// We merge two adjacent regions if their total size is less than
// one half of the desired maximum size
LOG.info("Merging regions " + currentRegion.getRegionInfo().getRegionNameAsString() +
" and " + nextRegion.getRegionInfo().getRegionNameAsString());
HRegion mergedRegion =
HRegion.mergeAdjacent(currentRegion, nextRegion);
updateMeta(currentRegion.getRegionInfo().getRegionName(),
nextRegion.getRegionInfo().getRegionName(), mergedRegion);
break;
}
LOG.info("not merging regions " +
Bytes.toStringBinary(currentRegion.getRegionInfo().getRegionName()) +
" and " + Bytes.toStringBinary(nextRegion.getRegionInfo().getRegionName()));
currentRegion.close();
currentRegion = nextRegion;
currentSize = nextSize;
}
if(currentRegion != null) {
currentRegion.close();
}
return true;
}