Hi John, 1. True.
2. The blog actually provides the answer: When the Backup Nodes detect the failure, they will notify the Transaction coordinator that they committed the transaction successfully. In this scenario, there is no data loss because the data are backed up and can still be accessed and used by applications. In other words, if primary node fails, backups will not wait for a message, but instead will commit right away and send an ack to the coordinator. Once coordinator gets all required acs, transaction completes. -Val -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
