[hcoyote]

What, specifically, is preventing the conversion? I've converted hundreds of TBytes to Parquet (including moving away from that HIVE ACID stuff).

[buremba]

Mainly the development cost. We trust OCR and have good experience with it, it's stable, fast and compact. We don't have any experience with Parquet and it's just too hard/risky to make this kind of conversion on a production system.