Future Wei Technologies, Inc.

Salesforce, Inc.

Anjuna Security, Inc.

Huawei Technologies Co., Limited

Jun Chen

Yu Cheng Chen

Yang Sun

Jianjun Chen

James E Mace

Le Cai

Jason Yang Sun

Kaushal Mittal

Chunfeng Pei

Mason Sharp

Yan Michalevsky

Shao-Yuan Ho

Yongyan Wang

Daljeet Singh Chhabra

Boris Mittleberg

Yu Chen

Xiaolin Du

The disclosed techniques reduce a responsiveness time for a secondary node state of a database in switching from a second computing node to replace a first computing node acting in a primary node state, with both computing nodes performing the same database queries. The second node receives information regarding queries performed by the first node while in the primary state. In some embodiments, the second node retrieves, from a transaction log, log records detailing operations performed for database transactions. In some embodiments, the second node inserts, based on the log records, data records of the transactions into an in-memory cache of the second node that stores chains of database records from different transactions. Upon receiving sufficient information to switch to the primary state, the second node changes a mode of operation during failover making a committed transaction available for reads by subsequent database queries prior to record reordering.

Early database transaction visibility

Example secure runtime systems and methods are described. In one implementation, a secure runtime system is configured to execute multiple applications in a secure manner. The secure runtime is associated with a secure enclave defined by a hardware device. A secure application loader is configured to load an application into the secure runtime system and an OS bridge is configured to provide OS services to the application.

Secure runtime systems and methods

A system and method for improved online transaction processing (OLTP) in a sharded database is provided. Overhead associated with a global transaction manager is reduced and scalability improved by determining whether incoming queries are single-shard transactions or multi-shard transactions. For multi-shard transactions, a distributed transaction ID (DXID) is requested from the GTM, and then forwarded with the query to one or more data notes. For single-shard transactions, the query is sent to a data node without requesting a DXID from the GTM.

High-throughput distributed transaction management for globally consistent sharded OLTP system and method of implementing

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Cupertino, CA, United States of America

Jun Chen