/**
* Deletes the specified regions from META.
*
* @param catalogTracker
* @param regionsInfo list of regions to be deleted from META
* @throws IOException
*/
public static void deleteRegions(CatalogTracker catalogTracker, List<HRegionInfo> regionsInfo)
throws IOException {
List<Delete> deletes = new ArrayList<Delete>(regionsInfo.size());
for (HRegionInfo hri : regionsInfo) {
deletes.add(new Delete(hri.getRegionName()));
}
deleteFromMetaTable(catalogTracker, deletes);
LOG.info("Deleted from META, regions: " + regionsInfo);
}
/**
* Deletes daughters references in offlined split parent.
*
* @param catalogTracker
* @param parent Parent row we're to remove daughter reference from
* @throws NotAllMetaRegionsOnlineException
* @throws IOException
*/
public static void deleteDaughtersReferencesInParent(
CatalogTracker catalogTracker, final HRegionInfo parent)
throws NotAllMetaRegionsOnlineException, IOException {
Delete delete = new Delete(parent.getRegionName());
delete.deleteColumns(HConstants.CATALOG_FAMILY, HConstants.SPLITA_QUALIFIER);
delete.deleteColumns(HConstants.CATALOG_FAMILY, HConstants.SPLITB_QUALIFIER);
deleteFromMetaTable(catalogTracker, delete);
LOG.info(
"Deleted daughters references, qualifier="
+ Bytes.toStringBinary(HConstants.SPLITA_QUALIFIER)
+ " and qualifier="
+ Bytes.toStringBinary(HConstants.SPLITB_QUALIFIER)
+ ", from parent "
+ parent.getRegionNameAsString());
}
/**
* Deletes the specified region from META.
*
* @param catalogTracker
* @param regionInfo region to be deleted from META
* @throws IOException
*/
public static void deleteRegion(CatalogTracker catalogTracker, HRegionInfo regionInfo)
throws IOException {
Delete delete = new Delete(regionInfo.getRegionName());
deleteFromMetaTable(catalogTracker, delete);
LOG.info("Deleted region " + regionInfo.getRegionNameAsString() + " from META");
}
/**
* Delete the passed <code>d</code> from the <code>.META.</code> table.
*
* @param ct CatalogTracker on whose back we will ride the edit.
* @param d Delete to add to .META.
* @throws IOException
*/
static void deleteFromMetaTable(final CatalogTracker ct, final Delete d) throws IOException {
List<Delete> dels = new ArrayList<Delete>(1);
dels.add(d);
deleteFromMetaTable(ct, dels);
}
