Amazon Technologies, Inc.

Hewlett-Packard Development Company, L.p.

Robert Strahan

Swamy Jagannadha Mandavilli

Sunil Menon

Anil A Kuriakose

Damian Horner

Michael Cameron

A data warehouse system may include a connection pool manager. The connection pool manager may invoke a first client-provided function for rerouting a connection request from a first database to a second database based on a query that is to be executed using the connection. The connection pool manager may invoke a second client-provided function for rewriting the query to be executed to leverage database aspects found on the second database.

Query routing and rewriting

A hosted database service may include a proxy service in which connections to the hosted database may be routed through a proxy. A first function may be provided to the proxy, by a client of the hosted database service, to analyze requests to connect or execute queries on a database. The analysis may identify an attribute of the query. A second function may be provided to the proxy, by the client, to implement a policy decision based on the attribute. The policy decision may include determining to execute a query on a database based on determining that executing the query is consistent with the policy.

Database proxy service

A system, and a corresponding method, implemented on a suitable computing device, provides for troubleshooting a network using path topology. The system includes a network node manager that generates and displays a path topology. The path topology a most probable path between two end point elements in the network. The most probable path includes one or more network elements disposed between the two end point elements, and the path topology includes identities of each of the network elements. The system also includes a health report generator, coupled to the network node manager, that receives identities of each of the network elements, determines summary performance information for each of the network elements, and displays the summary performance information.

Network troubleshooting using path topology

In an embodiment, a network service provider (NSP) operates a provider network to provide VPN services to its customers. A VPN links various customer sites allowing customers to send data between these sites over the NSP network. Each site network includes a customer edge router (CE) while the provider network includes a plurality of provider edge routers (PEs) to communicate with the CEs. The PEs include virtual routing address (VRFs), and the PEs and CEs include interfaces (IFs). A database stores information related to the relationships between the network components (e.g., VPNs, PEs, CEs, VRFs, IFs, etc.), and a management software package (MSP) has access to the database. When a fault occurs, the MSP, based on collected information and information in the database, determines the impacted network components. Other features include classifying the seriousness of the network's faults and representing different faults by a color scheme.

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Herndon, VA, United States of America

Robert Strahan