public static long getPageAddress(int pageIndex) {
    return (SchemaFileConfig.PAGE_INDEX_MASK & pageIndex) * SchemaFileConfig.PAGE_LENGTH
        + SchemaFileConfig.FILE_HEADER_SIZE;
  }
TODO: shall merge with PageManager#reEstimateSegSize
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/schemaengine/schemaregion/mtree/impl/pbtree/schemafile/SchemaFile.java