Synchronizing operations between regions when a network connection fails

    公开(公告)号:GB2527798A

    公开(公告)日:2016-01-06

    申请号:GB201411823

    申请日:2014-07-02

    Applicant: IBM

    Abstract: Disclosed is a method of recovering during synchronization operations. The system includes a first recovery management connector at a first region of the transaction processing system which carries out the method by identifying a failure of a network connection during synchronization operations with a partner region, querying connections defined to the transaction processing system to identify a replacement connection that is connected to the partner region using a different network type to the failed network connection, the replacement connection having a second recovery management connector in the first region. Then collecting relevant data for an interrupted synchronization operation, issuing a command to link to a specific program at a first recovery management connector in the partner region, the command including the relevant data for the interrupted synchronization operation, and using the second recovery management connector at the first region to communicate the command and a response from the partner region via the replacement connection in order to continue the interrupted synchronization operation.

    Managing concurrent conversations over a communications link between a client computer and a server computer

    公开(公告)号:GB2504124A

    公开(公告)日:2014-01-22

    申请号:GB201212873

    申请日:2012-07-20

    Applicant: IBM

    Abstract: The maximum permissible number of concurrent conversations or sessions is managed over a communications link between a client computer and a server computer. State information for a session includes an indication as to whether the most recent message sent is the final message in the session. When a client computer requests to start a new session, the server computer starts the session if the maximum number of concurrent sessions will not be exceeded. If the maximum number will be exceeded., it checks the state information to find a session in which the most recent message sent is the final message. If such a session cannot be found, it does not start the new session. If such a session can be found, it updates the state information for that session to show that a new session is being reserved and queues the message to start a new session.

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