public boolean compareAndSetMemberCacheUpdated(MemberName mn, boolean oldValue, boolean newValue) {
      return this.memberCacheUpdated[mn.ordinal()].compareAndSet(oldValue, newValue);
    }
this flag is used to validate/invalidate cached constraints snapshot.
All table constraints are update successfully either via updater thread or
while create_table_with_constraint api then it is set to true else
false and redirect all the call to raw metastore.
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/cache/SharedCache.java