public TableName getTableBySnapshot(String snapshotName) {
    for (Entry<TableName, BackupTableInfo> entry : this.backupTableInfoMap.entrySet()) {
      if (snapshotName.equals(entry.getValue().getSnapshotName())) {
        return entry.getKey();
      }
    }
    return null;
  }
Get new region server log timestamps after distributed log roll
@return new region server log timestamps
hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/BackupInfo.java