/**
* Adds and Removes the specified regions from .META.
*
* @param catalogTracker
* @param regionsToRemove list of regions to be deleted from META
* @param regionsToAdd list of regions to be added to META
* @throws IOException
*/
public static void mutateRegions(
CatalogTracker catalogTracker,
final List<HRegionInfo> regionsToRemove,
final List<HRegionInfo> regionsToAdd)
throws IOException {
List<Mutation> mutation = new ArrayList<Mutation>();
if (regionsToRemove != null) {
for (HRegionInfo hri : regionsToRemove) {
mutation.add(new Delete(hri.getRegionName()));
}
}
if (regionsToAdd != null) {
for (HRegionInfo hri : regionsToAdd) {
mutation.add(makePutFromRegionInfo(hri));
}
}
mutateMetaTable(catalogTracker, mutation);
if (regionsToRemove != null && regionsToRemove.size() > 0) {
LOG.debug("Deleted from META, regions: " + regionsToRemove);
}
if (regionsToAdd != null && regionsToAdd.size() > 0) {
LOG.debug("Add to META, regions: " + regionsToAdd);
}
}
