International Business Machines Corporation

Christopher Paul Vignola

Jeffrey Alan Frey

Robert H High

Logan M Colby

Liana Liyow Fong

Rohith Kottamangalam Ashok

Leigh Allen Williamson

Sridhar Sudarsan

Steven Duane Clay

David Carl Frank

Snehal S Antani

Linh Hue Lam

Neeraj Joshi

Ru Fang

Charles James Redlin

Barry Charles Searle

John Michael Lake

Vita Bortnikov

Ilya Shnayderman

Wenjian Qiao

Russell Ley Newcombe

Teresa Chung Kan

Zvi Cahana

Scott Andrew Fagen

Jon Kim Johnson

Peter John Schommer

Federico A Galarraga

Srinivasan K Rangaswamy

Roger L Cundiff, Jr

Ramu Mohan

Ifergan S Shachor

Dimitar G Dimitrov

Lorraine Cramer

John T Gates, Jr

John P Kong

A method and system for implementing a replica network configuration in a distributed system is provided. The system includes a memory having computer readable instructions, and one or more processors for executing the computer readable instructions. The computer readable instructions include generating a replica node that is assigned a computer readable storage medium and a processor, receiving, at the computer readable storage medium, a network configuration of the replica node from a system administrator, automatically generating, using the processor, a unique identifier (UUID) for the replica node, transmitting the UUID to a plurality of replica nodes of the distributed system arranged in the replica network configuration, and storing the UUID in the computer readable storage medium, wherein the computer readable storage medium is a persistent storage.

Method and apparatus to allow dynamic changes of a replica network configuration in distributed systems

For passive detection of live systems during controller failover in a distributed environment, a set of member systems is sorted according to heartbeat periods used by members in the set of member systems. An amount of elapsed time since a failure of a first controller system in the distributed environment is determined. From the sorted set, a first member system is selected due to a first heartbeat period of the first member system being a shortest heartbeat period in all heartbeat periods in the sorted set of member systems. Using a processor and a memory at a second controller system, a timeout period is computed. The timeout period is an amount of time remaining in the first heartbeat period after the amount of elapsed time. The first member system is removed from the sorted set after the timeout period expires and the first member system has not sent a heartbeat.

Passive detection of live systems during controller failover in distributed environments

A method, apparatus and computer instructions are provided to improve the push/pull workload management model with intelligent routing to effectively collect data from systems that consist of dynamic sub-systems. The invention improves the push/pull model of the referenced invention with intelligent request routing to solve the above problem. An API is exposed in the workload manager enabling its request router to decline requests to route to idle sub-systems. This allows the monitoring agent to avoid sending a pull request to an idle sub-system. Each sub-system will push the data to the agent as it enters the idle state. The agent caches the data it receives from idle sub-systems and combines it with data it pulls from active and stopped sub-systems.

Method to effectively collect data from systems that consists of dynamic sub-systems

Systems () and methods () for managing transactional processing. The methods involve executing a first transaction () which is blocked by an exclusive lock of at least one second transaction () from accessing at least one resource of a system. Thereafter, a determination is made as to whether a Service Level Agreement ('SLA') associated with the first transaction is being met. If it is determined that the SLA is not being met, the resources needed by the first transaction are identified. Subsequently, all executing transactions, that are using the resources needed by the first transaction, are identified. At least one of the identified transactions is then dynamically slowed down or speed up. The transaction is slowed down or sped up by: adjusting how many records are to be processed in each sub-transaction of the transaction; and/or increasing or decreasing the time period between commit operations of the transaction.

Method for dynamically throttling transactional workloads

Systems and method for dynamically throttling transactional workloads

A method for hosting versioned web services includes steps of: receiving a request from a service requestor, the request comprising version metadata; parsing the request; extracting the version metadata from the parsing step; and locating a target implementation version using the version metadata. If the target implementation version is located, the method proceeds by dynamically routing the versioned request to the target implementation version.

Method and approach to hosting versioned web services

An exemplary embodiment of the invention relates to a method, system, and storage medium for providing context-based dynamic policy assignment in a distributed processing environment. The system includes a first resource management host in communication with a client system, an application executable by the first resource management host, a dynamic policy assignment system executing on the first resource management host, policies stored on the first resource management host and an application profile associated with the client system. The application profile is received by the first resource management host. Application hosting services include executing the application on behalf of the client system. The dynamic policy assignment system receives the request, and based upon a task name associated with the application profile, selects at least one policy for an application instance. The dynamic policy assignment system further associates the policy to the application, and the host system executes the application.

Context-based dynamic policy assignment in a distributed processing environment

A method of deploying enterprise applications or updates to data processing systems in a complex data processing environment. The enterprise applications or updates are phase deployed to the target data processing systems. Phased deployment includes the steps of preparing one affected node, quiescing all affected servers in the node, stopping all affected servers in the node, synchronizing the node, delivering the applications or updates, starting all affected servers, reactivating all affected servers, restoring the affected node, and repeating these steps for each affected node one at a time until all targeted data processing systems have been affected.

Increasing application availability during automated enterprise deployments

A method for hosting versioned web services includes steps of: receiving a request from a service requester, the request comprising version metadata; parsing the request; extracting the version metadata from the parsing step; and locating a target implementation version using the version metadata. If the target implementation version is located, the method proceeds by dynamically routing the versioned request to the target implementation version.

Method, system, and storage medium for providing context-based dynamic policy assignment in a distributed processing environment

Algorithm for maximizing application availability during automated enterprise deployments

An exemplary embodiment of the invention relates to a method, system, and storage medium for providing context-based dynamic policy assignment in a distributed processing environment. The system comprises: a first resource management host in communication with a client system via a distributed network architecture; at least one application executable by the first resource management host; a dynamic policy assignment system executing on the first resource management host; a plurality of policies stored on the first resource management host; and an application profile associated with the client system. The application profile is received by the first resource management host to receive application hosting services. The application hosting services include executing the application on behalf of the client system. The dynamic policy assignment system receives the request at the first resource management system, and based upon a task name associated with the application profile, selects at least one policy for an application instance related to the request. The dynamic policy assignment system further associates the policy to the application, and the host system executes the application on behalf of the client system. The invention also includes a method and a storage medium.

A system and method for providing a reusable connection handle to managed connections within transactions, or other scoping mechanisms, preferably in a Java 2 Enterprise Edition (J2EE) software architecture on a computer platform. The system and method further allows for multiple connection handles to share the same managed connection within, but not outside of, the confines of the scoping mechanism. The connection handle is selectively disassociated from a managed connection whereby the connection handle enters a disassociated state, and then is selectively reassociated with a managed connection within the software architecture when desired.

Software architecture for providing a connection handle association

A system and method for performing a lookup in a second namespace, the lookup being performed from a first namespace, whereby a component performing the lookup is not required to be configured for performing a lookup in the second namespace, the system and method further comprising: parsing a first lookup request for a URL tag, the first lookup request for an object located in the second namespace, the lookup request including a symbolic name corresponding to a target location in the second namespace, the URL tag corresponding to a URL context; searching the URL context for a provider URL corresponding to the symbolic name; and creating a second lookup request, the second lookup comprising the provider URL and the object's name.

System and method for performing lookups across namespace domains using universal resource locators

A computer complex is provided with a mechanism for message delivery and redelivery in a controlled manner through the use of distributed shared memory. This provides a mechanism for overall computer system complex operation from a plurality of consoles which are registered or identified to the system and which particularly enhances capabilities for remote operation. In this way the complex can be made to look like a single system. Direct communication between any pair of systems is provided, say, by channel-to-channel adapters. Message information is maintained in each system which can also communicate with shared storage to establish update level information regarding locally maintained message information.

Multicomputer complex having a distributed shared memory system for

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Port Jervis, NY, United States of America

Christopher Paul Vignola