本文整理汇总了Java中org.apache.hadoop.hbase.catalog.MetaReader.getRegionsFromMergeQualifier方法的典型用法代码示例。如果您正苦于以下问题：Java MetaReader.getRegionsFromMergeQualifier方法的具体用法？Java MetaReader.getRegionsFromMergeQualifier怎么用？Java MetaReader.getRegionsFromMergeQualifier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.catalog.MetaReader的用法示例。
在下文中一共展示了MetaReader.getRegionsFromMergeQualifier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: cleanMergeQualifier
import org.apache.hadoop.hbase.catalog.MetaReader; //导入方法依赖的package包/类
/**
* Checks if the specified region has merge qualifiers, if so, try to clean
* them
* @param region
* @return true if the specified region doesn't have merge qualifier now
* @throws IOException
*/
public boolean cleanMergeQualifier(final HRegionInfo region)
throws IOException {
// Get merge regions if it is a merged region and already has merge
// qualifier
Pair<HRegionInfo, HRegionInfo> mergeRegions = MetaReader
.getRegionsFromMergeQualifier(this.services.getCatalogTracker(),
region.getRegionName());
if (mergeRegions == null
|| (mergeRegions.getFirst() == null && mergeRegions.getSecond() == null)) {
// It doesn't have merge qualifier, no need to clean
return true;
}
// It shouldn't happen, we must insert/delete these two qualifiers together
if (mergeRegions.getFirst() == null || mergeRegions.getSecond() == null) {
LOG.error("Merged region " + region.getRegionNameAsString()
+ " has only one merge qualifier in META.");
return false;
}
return cleanMergeRegion(region, mergeRegions.getFirst(),
mergeRegions.getSecond());
}
示例2: hasMergeQualifierInMeta
import org.apache.hadoop.hbase.catalog.MetaReader; //导入方法依赖的package包/类
/**
* Checks if the given region has merge qualifier in hbase:meta
* @param services
* @param regionName name of specified region
* @return true if the given region has merge qualifier in META.(It will be
* cleaned by CatalogJanitor)
* @throws IOException
*/
boolean hasMergeQualifierInMeta(final RegionServerServices services,
final byte[] regionName) throws IOException {
if (services == null) return false;
// Get merge regions if it is a merged region and already has merge
// qualifier
Pair<HRegionInfo, HRegionInfo> mergeRegions = MetaReader
.getRegionsFromMergeQualifier(services.getCatalogTracker(), regionName);
if (mergeRegions != null &&
(mergeRegions.getFirst() != null || mergeRegions.getSecond() != null)) {
// It has merge qualifier
return true;
}
return false;
}