本文整理汇总了Java中org.apache.hadoop.hbase.util.FSUtils.getRegionDegreeLocalityMappingFromFS方法的典型用法代码示例。如果您正苦于以下问题：Java FSUtils.getRegionDegreeLocalityMappingFromFS方法的具体用法？Java FSUtils.getRegionDegreeLocalityMappingFromFS怎么用？Java FSUtils.getRegionDegreeLocalityMappingFromFS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.hbase.util.FSUtils的用法示例。
在下文中一共展示了FSUtils.getRegionDegreeLocalityMappingFromFS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: verifyRegionPlacement
import org.apache.hadoop.hbase.util.FSUtils; //导入方法依赖的package包/类
/**
* Verify the region placement is consistent with the assignment plan
* @param isDetailMode
* @return reports
* @throws IOException
*/
public List<AssignmentVerificationReport> verifyRegionPlacement(boolean isDetailMode)
throws IOException {
System.out.println("Start to verify the region assignment and " +
"generate the verification report");
// Get the region assignment snapshot
SnapshotOfRegionAssignmentFromMeta snapshot = this.getRegionAssignmentSnapshot();
// Get all the tables
Set<TableName> tables = snapshot.getTableSet();
// Get the region locality map
Map<String, Map<String, Float>> regionLocalityMap = null;
if (this.enforceLocality == true) {
regionLocalityMap = FSUtils.getRegionDegreeLocalityMappingFromFS(conf);
}
List<AssignmentVerificationReport> reports = new ArrayList<AssignmentVerificationReport>();
// Iterate all the tables to fill up the verification report
for (TableName table : tables) {
if (!this.targetTableSet.isEmpty() &&
!this.targetTableSet.contains(table)) {
continue;
}
AssignmentVerificationReport report = new AssignmentVerificationReport();
report.fillUp(table, snapshot, regionLocalityMap);
report.print(isDetailMode);
reports.add(report);
}
return reports;
}
示例2: getNewAssignmentPlan
import org.apache.hadoop.hbase.util.FSUtils; //导入方法依赖的package包/类
public FavoredNodesPlan getNewAssignmentPlan() throws IOException {
// Get the current region assignment snapshot by scanning from the META
SnapshotOfRegionAssignmentFromMeta assignmentSnapshot =
this.getRegionAssignmentSnapshot();
// Get the region locality map
Map<String, Map<String, Float>> regionLocalityMap = null;
if (this.enforceLocality) {
regionLocalityMap = FSUtils.getRegionDegreeLocalityMappingFromFS(conf);
}
// Initialize the assignment plan
FavoredNodesPlan plan = new FavoredNodesPlan();
// Get the table to region mapping
Map<TableName, List<HRegionInfo>> tableToRegionMap =
assignmentSnapshot.getTableToRegionMap();
LOG.info("Start to generate the new assignment plan for the " +
+ tableToRegionMap.keySet().size() + " tables" );
for (TableName table : tableToRegionMap.keySet()) {
try {
if (!this.targetTableSet.isEmpty() &&
!this.targetTableSet.contains(table)) {
continue;
}
// TODO: maybe run the placement in parallel for each table
genAssignmentPlan(table, assignmentSnapshot, regionLocalityMap, plan,
USE_MUNKRES_FOR_PLACING_SECONDARY_AND_TERTIARY);
} catch (Exception e) {
LOG.error("Get some exceptions for placing primary region server" +
"for table " + table + " because " + e);
}
}
LOG.info("Finish to generate the new assignment plan for the " +
+ tableToRegionMap.keySet().size() + " tables" );
return plan;
}