Amazon Technologies, Inc.

Shashanka Krishnaswamy

Surya Prakash Dhoolam

Bradley Nathaniel Burkett

Naveen Dasa Subramanyam

Various embodiments of dynamically switching between query and scan for optimizing table reads are described. A particular client of a shared table can use various criteria in determining whether to query for individual entries in a table, or whether to scan the entire table. Criteria can be, in some embodiments, whether there are fewer than a threshold number of other clients accessing the same portion of the table as the particular client, or the size of the portion accessed by the client. If there are fewer than a threshold number of other clients accessing the same portion of the table, and the size of the portion is below a size threshold, for example, then querying individual entries in the table might be appropriate in those circumstances. By querying instead of scanning, for example, clients can reduce the total number of I/O operations per second on the shared table.

Dynamically switching between query and scan for optimizing table reads

A computing resource service provider may provide customers with access to software functions executing within compute instances. In addition, customer may desire that the software functions executing within the compute instances have access to virtual network operated by the customer. To accomplish this, a network interface belonging to the customer may be created and attached to a particular compute instance. In addition, this network interface may be moved from global network namespace of the compute instance into a new network namespace within the compute instance. In this manner, software functions executed by the compute instance may communicate to other computing device attached to the virtual network through the network interface.

Virtual networking for compute instances

This disclosure describes techniques implemented partly by a service provider network for dynamically selecting between router groups to account for scaling up and/or scaling down of managed instances that are serving concurrent requests. Router groups define bandwidth allowances for routers that restrict the number of machine instances the routers are allowed to manage for individual user accounts. As concurrency of requests increases for a user account, rather than using more routers in a router group with a smaller bandwidth allowance, the techniques described herein include selecting a different router group for the user account that defines larger bandwidth allowances for user accounts. The service provider network may determine that the number of concurrent requests for a user account has passed a threshold for a router group, and select a new router group for routing new requests and managing containers of instances that are processing the existing concurrent requests.

Growing community of inventors

Seattle, WA, United States of America

Shashanka Krishnaswamy