static long getSegAddrInContainer(ICachedMNode par) {
    return ICachedMNodeContainer.getCachedMNodeContainer(par).getSegmentAddress();
  }
related methods shall be merged further: {@linkplain SchemaFile#reEstimateSegSize}
,{@linkplain PageManager#reEstimateSegSize}
iotdb-core/datanode/src/test/java/org/apache/iotdb/db/metadata/mtree/schemafile/SchemaFileTest.java