Transactions Background Part 1: Low-level timestamps in MongoDB/WiredTiger | MongoDB BlogRecent features in MongoDB such as multi-document ACID transactions have required foundational enhancements in the underlying WiredTiger storage engine to enable them. In this six part series, we'll be looking at the changes in MongoDB that enabled transactions support at the heart of the database.https://www.mongodb.com/blog/post/transactions-background-part-1-lowlevel-timestamps-in-mongodbwiredtiger Transactions Background Part 2: Logical Sessions in MongoDB | MongoDB BlogRecent features in MongoDB such as multi-document ACID transactions have required foundational enhancements in MongoDB to enable them. One of these foundational changes is the addition of Logical Sessions. Also in the Transactions Background series: In the first part of this six part series, we looked at the handling of timestamps within the server and how it enabled multi-document transactions.https://www.mongodb.com/blog/post/transactions-background-part-2-logical-sessions-in-mongodb Transactions Background Part 3: Local Snapshot Reads | MongoDB BlogRecent features in MongoDB such as multi-document ACID transactions have required foundational enhancements in MongoDB to enable them. One of these foundational changes is the ability to perform local snapshot reads. Also in the Transactions Background series: For transactions to be effective it needs to be possible to look at the database at a particular point in time.https://www.mongodb.com/blog/post/transactions-background-part-3-local-snapshot-reads Transactions Background Part 4: The Global Logical Clock | MongoDB BlogRecent features in MongoDB such as multi-document ACID transactions have required foundational enhancements in MongoDB to enable them. One of these foundational changes is the introduction of a Global Logical Clock. Also in the Transactions Background series: Time synchronization within MongoDB has been enhanced by a move to a global logical clock.https://www.mongodb.com/blog/post/transactions-background-part-4-the-global-logical-clock Transactions Background Part 5: Safe Secondary Reads | MongoDB BlogRecent features in MongoDB such as multi-document ACID transactions have required foundational enhancements in MongoDB to enable them. One of these foundational changes is the ability to perform Safe Secondary Reads. Also in the Transactions Background series: Safe Secondary Reads address a problem that can occur when chunks of documents, or documents within a shard key range, are being migrated between shards.https://www.mongodb.com/blog/post/transactions-background-part-5-safe-secondary-reads Transactions Background Part 6: Retryable Writes | MongoDB BlogRecent features in MongoDB such as multi-document ACID transactions have required foundational enhancements in MongoDB to enable them. One of these foundational changes is the ability to perform retryable writes.https://www.mongodb.com/blog/post/transactions-background-part-6-retryable-writes