Abstract: Methods and systems to sample event messages are described. As event messages are generated by one or more sources, the event messages are stored in a storage queue. An event message policy that represents conditions for storing event messages in a sample log file are input. For each event message output from the storage queue, the event message may be stored in a sample log file when one or more of the conditions of the event message policy are satisfied. The event messages of the sample log file may be displayed in a graphical user interface that enables a user to change the event message policy.

Abstract: Computational methods and systems that troubleshoot and localize failures in data storage of a multitenant application are executed in a multitenant database management system that comprises a control plane of control plane nodes and a data plane of independent and isolated data plane nodes. Each control plane node receives data requests and data queries. Each data plane node maintains data storage for tenants of the multitenant application and executes data storage and data query operations requested by the control plane nodes. Methods and system determine whether data plane nodes are network connected and whether the data cores of network connected data plane nodes are available to ingest data and respond to data queries. Data cores of disconnected data plane nodes and unavailable data cores are isolated from data ingestion and data queries. Remedial measures are executed to restore disconnected data plane nodes and unavailable data cores.

Abstract: Computational methods and systems that troubleshoot and localize failures in data storage of a multitenant application are executed in a multitenant database management system that comprises a control plane of control plane nodes and a data plane of independent and isolated data plane nodes. Each control plane node receives data requests and data queries. Each data plane node maintains data storage for tenants of the multitenant application and executes data storage and data query operations requested by the control plane nodes. Methods and system determine whether data plane nodes are network connected and whether the data cores of network connected data plane nodes are available to ingest data and respond to data queries. Data cores of disconnected data plane nodes and unavailable data cores are isolated from data ingestion and data queries. Remedial measures are executed to restore disconnected data plane nodes and unavailable data cores.

Abstract: The current document is directed to an integrated application-aware load-balancing component of a distributed computer system. The integrated application-aware load-balancing component is, in a described embodiment, incorporated within a distributed application that serves as a control component of multiple physical computers within a distributed computer system. The integrated application-aware load-balancing component includes a layer-4 load-balancing subcomponent that distributes communications connections initiated by remote client computers among computational nodes within the distributed computer system in order to balance the computational load applied to the distributed application and distributed computer system by the remote client computers.

Abstract: Methods and systems to sample event messages are described. As event messages are generated by one or more sources, the event messages are stored in a storage queue. An event message policy that represents conditions for storing event messages in a sample log file are input. For each event message output from the storage queue, the event message may be stored in a sample log file when one or more of the conditions of the event message policy are satisfied. The event messages of the sample log file may be displayed in a graphical user interface that enables a user to change the event message policy.

Abstract: The current document is directed to an integrated application-aware load-balancing component of a distributed computer system. The integrated application-aware load-balancing component is, in a described embodiment, incorporated within a distributed application that serves as a control component of multiple physical computers within a distributed computer system. The integrated application-aware load-balancing component includes a layer-4 load-balancing subcomponent that distributes communications connections initiated by remote client computers among computational nodes within the distributed computer system in order to balance the computational load applied to the distributed application and distributed computer system by the remote client computers.

Abstract: In accordance with one aspect illustrated herein, a system is provided comprising a plurality of devices implementing a plurality of peer nodes coupled to a data-center-less network, wherein each of the plurality of devices implements at least one peer node. At least one of the plurality of peer nodes is configured as a publisher peer node for a plurality of contents cached on the respective peer node. Each publisher peer node is configured to publish one or more advertisements on the network. The data-center-less network can be built automatically from user interactions in the markets and includes proactive replication of advertisements to relevant micro-markets. The system still further provides automatic suggesting of the advertisements to a bidder, which are located in a different market, but are relevant to the bid. The automatic suggesting is based upon a computed strength of a connection between the publisher and the bidder using prior interactions.

Abstract: A system and method for creating a peer-to-peer geographical routing overlay network and a multi-attribute similarity routing overlay network. The geographical overlay network can be generated utilizing a geographical routing protocol to organize connections between one or more distributed micro-markets depending on a geographical location of each market and to detect a geographically close neighbor in a decentralized manner. The multi-attribute similarity overlay network can be computed by applying a filtering function based on a multi-attribute routing protocol defined over at least one attribute in order to enable decentralized clustering of the distributed micro-markets. The multi-attribute similarity protocol can be combined with the geographic overlay protocol to route messages to a target set of similarity-based attributes and a target geographic location thereby dynamically evolve a structure of distributed micro-markets over time and optimize a market interaction in the overlay network.

Abstract: A method and system for creating a similarity-based overlay network of micro-markets. One or more distributed micro-markets can be operatively connected via a self-organizing overlay network to exchange data between distributed micro-markets in the network. A market similarity function can be computed by applying a filtering function with respect to a network protocol that is defined over particular attributes in order to enable decentralized clustering of similar markets. The data can be further advertised with respect to a set of neighbor markets in order to avoid selfish and rational behaviors between the markets. Such an approach dynamically evolves a structure of the micro-markets over time in order to optimize a desired market interaction in the network.