Amazon Technologies, Inc.

Saraswathy Narayan

Alexandre Olegovich Verbitski

Dhruva Ranjan Chakrabarti

Atrayee Mullick

Yingjie He

Gopi K Attaluri

Tengiz Kharatishvili

Damien Katz

Suhas Keshavamurthy

Huawei Wang

Jianguo Wang

Transaction statements may be forwarded for a database transaction. A transaction begun at a read-only node may include a write statement. The read-only node may forward the write statement to the read-only node to perform as a transaction. The read-only node may update a read view for the transaction to include the write statement before performing a read statement submitted after the write statement at the read-only node.

Selective forwarding for multi-statement database transactions

Database commands may be asynchronously forwarded between nodes of a database system. A read-only node may receive a request, such as a read request or write request, and determine that the request should be forwarded to a read-only node for performance. A thread that handles the request may forward the request to the read-only node and register a call-back event for a response to the request and be made available to perform other work. When the response from the read-write node is received, the call-back event may be triggered and return a response to the request using the same or different thread.

Asynchronously forwarding database commands

Automatic consistency is implemented for forwarding writes in a database system. A read-only node may support both read and write requests to a database. The read only node may forward write requests to a read-write node. The read-only node may determine whether to include the forwarded requests in a version of the database for a read request automatically according to a consistency specified for a read request.

Automatic consistency for database write forwarding

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Fremont, CA, United States of America

Saraswathy Narayan