EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Lobsters·Aug 21·5 min read
The road to ACID transactions in Cassandra 6
TL;DR
Cassandra 6 introduces ACID transactions with Accord, enabling strictly serializable cross-partition transactions. Testing on a three-node cluster revealed significant improvements in consistency over previous methods.
✦ Why It Matters
Consider upgrading to Cassandra 6 for improved transaction reliability in your applications.
Key Takeaways
- Test Cassandra 6's Accord for cross-partition transactions.
- Utilize BATCH updates to enhance consistency in single partitions.
- Be aware of timestamp collision issues in concurrent updates.
- Model your tables based on query patterns to optimize performance.
How It Works
Cassandra 6's Accord enables ACID transactions by ensuring that operations across multiple partitions are strictly serializable, which means they appear to execute in a sequential order. This is achieved through a consensus protocol that coordinates updates, reducing the risk of inconsistencies that arise from concurrent writes.