Providing event-processing rules in an event-processing environment

    公开(公告)号:GB2502565A

    公开(公告)日:2013-12-04

    申请号:GB201209648

    申请日:2012-05-31

    Applicant: IBM

    Abstract: A method for providing event-processing rules in an event-processing environment comprises providing at least one generalised event-processing rule to a customer 100; receiving customer input of rule customisation to produce a customised rule 102; and storing the customised rule in Polish notation for processing using stack-based processing 103. The method may also include receiving notification of an event for a customer; retrieving a customised rule relating to the customer; and processing the customised rule using stack-based processing. The method allows the business rules of multiple curtomers to be represented by a few general rules.

    Maintaining computer system operability

    公开(公告)号:GB2515554A

    公开(公告)日:2014-12-31

    申请号:GB201311604

    申请日:2013-06-28

    Applicant: IBM

    Abstract: Disclosed is a method of maintaining the operability of a network-connected data processing apparatus, that is coupled to a host computer, and handles operations on behalf of the host computer. The data processing system has first and second resources to provide redundancy. The host has a failover capability for responding to loss of availability of a first resource by performing failover to the second resource. The host in response to a request for failover from a first resource to a second resource, tests the availability of the second resource for handling operations on its behalf. In response to a positive determination of the availability of the second resource, initiating the failover to the second resource, and in response to a negative determination of the availability of the second resource, providing an indication of unavailability. The failover may be determined as part of a request to take a resource out of service to carry out a resource update.

    Managing persistent messages between a message producer and a remote message consumer using references pointing to messages

    公开(公告)号:GB2503477A

    公开(公告)日:2014-01-01

    申请号:GB201211447

    申请日:2012-06-28

    Applicant: IBM

    Abstract: A method, system and computer program product is provided for managing persistent messages in a messaging system of a message producer and remote message consumer that share a common message queue, the method comprising a message producer writing (302) a message into a shared memory location in a distributed file system and writing (304) an associated message reference into the message queue, said associated message reference pointing to the shared memory location; and on receiving notification of the message reference in the message queue, a message consumer reading the message reference from the queue and accessing the message in the common file system (308).

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