@Override
          public void editRegion(final RegionInfo region) throws IOException {
            snapshotManifest.addRegion(CommonFSUtils.getTableDir(rootDir, snapshotTable), region);
          }
A procedure used to take snapshot on tables.
hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/SnapshotProcedure.java