Jay Patel created CASSANDRA-8854: ------------------------------------ Summary: Support for Async Atomic Batch Key: CASSANDRA-8854 URL: https://issues.apache.org/jira/browse/CASSANDRA-8854 Project: Cassandra Issue Type: New Feature Reporter: Jay Patel
Sometime use case demands atomicity (using C* logged batch) across multiple DML statements; however, in order to minimize the end user latency, do not want to wait for all the statements to be executed. For instance, would like to have something like: BEGIN BATCH Sync - INSERT INTO users (userID, name, email) VALUES ('user1', ‘first user’, ’us...@gmail.com') Async - INSERT INTO users_by_name (name, userID) VALUES (‘first user’, 'user1’); Async - INSERT INTO users_by_email (name, userID) VALUES (’us...@gmail.com’, 'user1’); ..... more Async statements! APPLY BATCH; Once the batch is serialized to the batchlog table and the sync statements are executed, coordinator should return response without waiting for execution of async batch statements. Some of the use cases that we’re working on will get benefited significantly in terms of latency reduction. I can take a first cut at it if we don’t see any concerns supporting it. Also, need some discussions around specifying sync/async tag for each statement in the batch. Thoughts welcome. Thanks! -- This message was sent by Atlassian JIRA (v6.3.4#6332)