Open Text Corporation

Emc IP Holding Company LLC

Emc Corporation

Pankaj Pradhan

Shu-Shang Sam Wei

Shuaib Hasan Khwaja

Vinod Kumar

Ravi Ranjan Jha

Gourav Mukherjee

A method for referencing and updating objects in a shared resource environment. A reference counter counts is incremented for every use of an object subtype in a session and decremented for every release of an object subtype in a session. A session counter is incremented upon the first instance of fetching an object type into a session cache and decremented upon having no instances of the object type in use in the session. When both the reference counter and the session counter are zero, the object type may be removed from the cache. When the object type needs to be updated, it is cloned into a local cache, and changes are made on the local copy. The global cache is then locked to all other users, the original object type is detached, and the cloned object type is swapped into the global cache, after which the global cache is unlocked.

Methods for updating reference count and shared objects in a concurrent system

Systems and methods for managing concurrent access to a shared resource in a distributed computing environment are provided. A reference counter counts is incremented for every use of an object subtype in a session and decremented for every release of an object subtype in a session. A session counter is incremented upon the first instance of fetching an object type into a session cache and decremented upon having no instances of the object type in use in the session. When both the reference counter and the session counter are zero, the object type may be removed from the cache.

A method for referencing and updating objects in a shared resource environment. A reference counter counts is incremented for every use of an object subtype in a session and decremented for every release of an object subtype in a session. A session counter is incremented upon the first instance of fetching an object type into a session cache and decremented upon having no instances of the object type in use in the session. When both the reference counter and the session counter are zero, the object type may be removed from the cache. When the object type needs to be updated, it is cloned into a local cache, and changes are made on the local copy. The global cache is then locked to all other users, the original object type is detached, and the cloned object type is swapped into the global cache, after which the global cache in unlocked.

A method for to manage concurrent access to a shared resource in a distributed computing environment. A reference counter counts is incremented for every use of an object subtype in a session and decremented for every release of an object subtype in a session. A session counter is incremented upon the first instance of fetching an object type into a session cache and decremented upon having no instances of the object type in use in the session. When both the reference counter and the session counter are zero, the object type may be removed from the cache.

On-demand aggregated logging for distributed systems is described. An identification of a logging condition is received via a first user interface. The logging condition is sent to multiple logging elements, wherein each of the multiple logging elements is executing on a corresponding one of multiple distributed systems components. A logging element determines whether a local runtime condition matches the logging condition. The logging element sends a local log associated with the local runtime condition to an aggregating logger, wherein the local log is supplemented with information that identifies the logging condition, in response to a determination that the local runtime condition matches the logging condition. The aggregating logger creates an aggregated log based on the local log and the supplemented information. The aggregated log is output via a second user interface to enable resolution of a problem associated with the multiple distributed systems components.

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Bengaluru, India

Pankaj Pradhan