Abstract: Methods, systems, and computer program products for historical state snapshot construction over temporally evolving data are provided herein. A computer-implemented method includes classifying each of multiple temporally evolving data entities into one of multiple categories based on one or more parameters; partitioning the multiple temporally evolving data entities into multiple partitions based at least on (i) said classifying and (ii) the update frequency of each of the multiple temporally evolving data entities; implementing multiple checkpoints at a distinct temporal interval for each of the multiple partitions; and creating a snapshot of the multiple temporally evolving data entities at a selected past point of time (i) based on said implementing and (ii) in response to a query pertaining to a historical state of one or more of the multiple temporally evolving data entities.

Abstract: Methods, systems, and computer program products for organizing on-disk layout of index structures are provided herein. A method includes organizing an on-disk corpus of data index structures; partitioning each data index structure into an active and/or latest state data partition and an archived data partition; sub-partitioning each of the archived data partitions into sub-partitions based on exact lifespan of each data item; executing a search query that includes temporal predicates and keyword predicates across the corpus by: pruning a collection of identified items of data from the corpus that contain the keyword predicates using range metadata associated with the temporal predicates to generate a pruned list of data items; and performing a list intersection operation on the data index structures to generate a list of common data items from the pruned list; retrieving the common data items from the active and/or latest state data partitions and the archived data sub-partitions.

Abstract: Methods, systems, and computer program products for historical state snapshot construction over temporally evolving data are provided herein. A computer-implemented method includes classifying each of multiple temporally evolving data entities into one of multiple categories based on one or more parameters; partitioning the multiple temporally evolving data entities into multiple partitions based at least on (i) said classifying and (ii) the update frequency of each of the multiple temporally evolving data entities; implementing multiple checkpoints at a distinct temporal interval for each of the multiple partitions; and creating a snapshot of the multiple temporally evolving data entities at a selected past point of time (i) based on said implementing and (ii) in response to a query pertaining to a historical state of one or more of the multiple temporally evolving data entities.

Abstract: Methods, systems, and computer program products for organizing on-disk layout of index structures are provided herein. A method includes organizing an on-disk corpus of data index structures; partitioning each data index structure into an active and/or latest state data partition and an archived data partition; sub-partitioning each of the archived data partitions into sub-partitions based on exact lifespan of each data item; executing a search query that includes temporal predicates and keyword predicates across the corpus by: pruning a collection of identified items of data from the corpus that contain the keyword predicates using range metadata associated with the temporal predicates to generate a pruned list of data items; and performing a list intersection operation on the data index structures to generate a list of common data items from the pruned list; retrieving the common data items from the active and/or latest state data partitions and the archived data sub-partitions.

Abstract: Methods and arrangements for evaluating a regular expression. Text strings are received. A regular expression is also received, the regular expression comprising a pattern for specifying and recognizing at least one text string from among the received text strings. There is generated, with respect to the received text strings, a data structure containing grams with positional information. The data structure is employed to evaluate the regular expression via identifying a subset of the text strings comprising at least one match for the given regular expression. Other variants and embodiments are broadly contemplated herein.

Abstract: A plug-in-based templatization framework for automating the creation of open virtualization framework (OVF) virtual appliance (VA) is provided. According to one embodiment, a framework is stored which comprises a plurality of product-specific add-ons. Each of the plurality of product-specific add-ons comprises a discovery element, an activation logic template element, an open virtualization package envelope template element. The plurality of product-specific add-ons are executed against a first virtual composite application instance while said the virtual composite application instance is executing in a first virtualization platform environment to automatically generate an open virtualization package template. A second virtual composite application instance is then deployed within a second virtualization platform environment utilizing the open virtualization package template.

Abstract: Methods and arrangements for storing and retrieving nested structures. A nested structure is obtained. There are created slices containing arbitrary sub-structures of the nested structure. The content of slices is stored in one or more columns of a column-oriented data store. At least one access plan for accessing slices in the data store is developed, to be used when a projection query is received. The access plan is executed to construct a nested structure that answers the projection query. Other variants and embodiments are broadly contemplated herein.

Abstract: Techniques for facilitating a real-time virtual interaction between two or more users are provided. The techniques include extracting a dynamically changing context from two or more users, wherein the context comprises at least one of user-provided information and one or more items related to at least one of current activity and past activity of the two or more users, analyzing the context from each user to create a classification for each user, comparing the classification for each user with a classification for each additional user, wherein comparing comprises ordering each user in terms of closeness to each additional user, and using the ordering of each user in terms of closeness to each additional user to facilitate a real-time virtual interaction between two or more users. Techniques are also provided for generating a database of one or more user classifications.

Abstract: Methods and arrangements for evaluating a regular expression. Text strings are received. A regular expression is also received, the regular expression comprising a pattern for specifying and recognizing at least one text string from among the received text strings. There is generated, with respect to the received text strings, a data structure containing grams with positional information. The data structure is employed to evaluate the regular expression via identifying a subset of the text strings comprising at least one match for the given regular expression. Other variants and embodiments are broadly contemplated herein.

Abstract: Methods and arrangements for storing and retrieving nested structures. A nested structure is obtained. There are created slices containing arbitrary sub-structures of the nested structure. The content of slices is stored in one or more columns of a column-oriented data store. At least one access plan for accessing slices in the data store is developed, to be used when a projection query is received. The access plan is executed to construct a nested structure that answers the projection query. Other variants and embodiments are broadly contemplated herein.

Abstract: Techniques for facilitating a real-time virtual interaction between two or more users are provided. The techniques include extracting a dynamically changing context from two or more users, wherein the context comprises at least one of user-provided information and one or more items related to at least one of current activity and past activity of the two or more users, analyzing the context from each user to create a classification for each user, comparing the classification for each user with a classification for each additional user, wherein comparing comprises ordering each user in terms of closeness to each additional user, and using the ordering of each user in terms of closeness to each additional user to facilitate a real-time virtual interaction between two or more users. Techniques are also provided for generating a database of one or more user classifications.

Abstract: A framework instantiates an application from its disk snapshots. The disk snapshots are taken from a different network environment and migrated to a virtualized environment. Modifications to operating systems and hypervisors are avoided, and no special network isolation support is required. The framework is extensible and plug-in based, allowing product experts to provide knowledge about discovering, updating, starting and stopping of software components. This knowledge base is compiled into a plan that executes various interleaved configuration discovery, updates and start tasks such that a required configuration model can be discovered with minimal start and update task execution. The plan generation automatically stitches together knowledge for the various products, thus significantly simplifying the knowledge specification.

Abstract: A plug-in-based templatization framework for automating the creation of open virtualization framework (OVF) virtual appliance (VA) is provided. According to one embodiment, a framework is stored which comprises a plurality of product-specific add-ons. Each of the plurality of product-specific add-ons comprises a discovery element, an activation logic template element, an open virtualization package envelope template element. The plurality of product-specific add-ons are executed against a first virtual composite application instance while said the virtual composite application instance is executing in a first virtualization platform environment to automatically generate an open virtualization package template. A second virtual composite application instance is then deployed within a second virtualization platform environment utilizing the open virtualization package template.

Abstract: Techniques for creating a virtual appliance in a virtualization environment are provided. The techniques include implementing a framework, wherein the framework comprises a knowledge representation scheme for describing library knowledge to specify one or more libraries that are used for interaction between two or more appliance components, and using the framework to instrument the one or more libraries via use of the library knowledge, record each of one or more communication parameter values in an original environment, and package one or more disk images, wherein the one or more disk images contain the one or more instrumented libraries, the one or more communication parameter values, and translation logic, to create a virtual appliance.

Abstract: A framework instantiates an application from its disk snapshots taken from a different network environment and migrated to a virtualized environment. Modifications to operating systems and hypervisors are avoided, and no special network isolation support is required. The framework is extensible and plug-in based, allowing product experts to provide knowledge about discovering, updating, starting and stopping of software components. This knowledge base is compiled into a plan that executes various interleaved configuration discovery, updates and start tasks such that a required configuration model can be discovered with minimal start and update task execution. The plan generation automatically stitches together knowledge for the various products, thus significantly simplifying the knowledge specification. Once discovery is complete, the framework utilizes the discovered model to update stale network configurations across software stack and customize configurations beyond network settings.

Abstract: Techniques for creating a virtual appliance in a virtualization environment are provided. The techniques include implementing a framework, wherein the framework comprises a knowledge representation scheme for describing library knowledge to specify one or more libraries that are used for interaction between two or more appliance components, and using the framework to instrument the one or more libraries via use of the library knowledge, record each of one or more communication parameter values in an original environment, and package one or more disk images, wherein the one or more disk images contain the one or more instrumented libraries, the one or more communication parameter values, and translation logic, to create a virtual appliance.

Abstract: Techniques for facilitating a real-time virtual interaction between two or more users are provided. The techniques include extracting a dynamically changing context from two or more users, wherein the context comprises at least one of user-provided information and one or more items related to at least one of current activity and past activity of the two or more users, analyzing the context from each user to create a classification for each user, comparing the classification for each user with a classification for each additional user, wherein comparing comprises ordering each user in terms of closeness to each additional user, and using the ordering of each user in terms of closeness to each additional user to facilitate a real-time virtual interaction between two or more users. Techniques are also provided for generating a database of one or more user classifications.

Abstract: Techniques for facilitating a real-time virtual interaction between two or more users are provided. The techniques include extracting a dynamically changing context from two or more users, wherein the context comprises at least one of user-provided information and one or more items related to at least one of current activity and past activity of the two or more users, analyzing the context from each user to create a classification for each user, comparing the classification for each user with a classification for each additional user, wherein comparing comprises ordering each user in terms of closeness to each additional user, and using the ordering of each user in terms of closeness to each additional user to facilitate a real-time virtual interaction between two or more users. Techniques are also provided for generating a database of one or more user classifications.

Abstract: A method and a system for resolving problems in an enterprise system which contains a plurality of servers forming a cluster coupled via a network. A central controller is configured to monitor and control the plurality of servers in the cluster. The central controller is configured to poll the plurality of servers based on pre-defined rules and identify an alarm pattern in the cluster. The alarm pattern is associated with one of the servers in the cluster and a possible root cause is identified by the central controller with labeled alarm pattern in a repository and a possible solution is recommended to overcome the identified problem that has been associated with the alarm pattern. Information in the repository is adapted based on feedback about the real root cause obtained from the administrator.

Abstract: A method and a system for resolving problems in an enterprise system which contains a plurality of servers forming a cluster coupled via a network. A central controller is configured to monitor and control the plurality of servers in the cluster. The central controller is configured to poll the plurality of servers based on pre-defined rules and identify an alarm pattern in the cluster. The alarm pattern is associated with one of the servers in the cluster and a possible root cause is identified by the central controller with labeled alarm pattern in a repository and a possible solution is recommended to overcome the identified problem that has been associated with the alarm pattern. Information in the repository is adapted based on feedback about the real root cause obtained from the administrator.