Top 5 reasons to not adopt Apache Iceberg

Apache Iceberg is rising as a popular table format standard, but potential adopters should consider several factors before transitioning from existing systems like Apache Hive. While Iceberg offers advanced features such as ACID transactions and performance enhancements, it does not support Hive's external table concept, which allows external systems to interact with data without SQL operations. Enterprises must also consider compliance hurdles, compatibility with existing tools, and whether their use cases necessitate Iceberg's advanced functionalities. Those still using HDFS might find Iceberg advantageous, especially if future plans include migrating to cloud storage. However, if current Hive implementations are performing well, a migration might not be urgent. Ultimately, the decision to adopt Iceberg should focus on long-term benefits and alignment with enterprise goals, particularly for large-scale and heavily queried tables.