DYNAMIC REPLACEMENT OF SOFTWARE COMPONENTS
A non-stop multi-host transaction processing environment may be created by receiving incoming user calls to components through a vestibule bank, and by utilizing an installation manager during the replacement of software. The installation manager may be used in connection with a vestibule bank to handle user calls during the installation of a replacement software component such that user calls for a component can be processed while that component is being replaced, without an error being passed back to the end user. During the replacement of a software component, user calls from the old component may be drained and diverted to a replacement component. User calls received during the installation may be queued and then routed to the replacement component once the component has been replaced.
1 . A method, comprising:
receiving, by a processor, at a vestibule bank, one or more user calls for a component while the component is being replaced by a replacement component;
transferring, by the processor, control of the one or more user calls at the vestibule bank to an installation management routines subsystem;
queueing, by the processor, the one or more user calls while the component is being replaced; and
routing, by the processor, the one or more queued user calls to the replacement component upon completion of the replacement of the component.
2 . The method of claim 1 , in which the installation management routines subsystem is activated by an installation manager to provide a plurality of installation manager system services.
3 . The method of claim 2 , in which one of the plurality of installation manager system services is a service for activation of the replacement component.
4 . The method of claim 2 , in which one of the plurality of installation manager system services is a service for queueing the one or more user calls.
5 . The method of claim 1 , further comprising:
interfacing between the installation management routines subsystem and an installation manager component agent in the component or the replacement component.
6 . The method of claim 1 , in which the installation management routines subsystem supports the one or more user calls at the vestibule bank after a triggering action occurs.
7 . A computer program product, comprising:
a non-transitory computer readable medium comprising code to perform the steps of:
receiving, by a processor, at a vestibule bank, one or more user calls for a component while the component is being replaced by a replacement component;
transferring, by the processor, control of the one or more user calls at the vestibule bank to an installation management routines subsystem;
queueing, by the processor, the one or more user calls while the component is being replaced; and
routing, by the processor, the one or more queued user calls to the replacement component upon completion of the replacement of the component.
8 . The computer program product of claim 7 , in which the installation management routines subsystem is activated by an installation manager to provide a plurality of installation manager system services.
9 . The computer program product of claim 8 , in which one of the plurality of installation manager system services is a service for activation of the replacement component.
10 . The computer program product of claim 8 , in which one of the plurality of installation manager system services is a service for queueing the one or more user calls.
11 . The computer program product of claim 7 , in which the medium further comprises code to perform the step of:
interfacing between the installation management routines subsystem and an installation manager component agent in the component or the replacement component.
12 . The computer program product of claim 7 , in which the installation management routines subsystem supports the one or more user calls at the vestibule bank after a triggering action occurs.
13 . An apparatus, comprising:
a memory; and
a processor coupled to the memory, the processor configured to execute the steps of:
receiving, by the processor, at a vestibule bank, one or more user calls for a component while the component is being replaced by a replacement component;
transferring, by a processor, control of the one or more user calls at the vestibule bank to an installation management routines subsystem;
queueing, by the processor, the one or more user calls while the component is being replaced; and
routing, by the processor, the one or more queued user calls to the replacement component upon completion of the replacement of the component.
14 . The apparatus of claim 13 , in which the installation management routines subsystem is activated by an installation manager to provide a plurality of installation manager system services.
15 . The apparatus of claim 14 , in which one of the plurality of installation manager system services is a service for activation of the replacement component.
16 . The apparatus of claim 14 , in which one of the plurality of installation manager system services is a service for queueing the one or more user calls.
17 . The apparatus of claim 13 , in which the processor is further configured to perform the step of:
interfacing between the installation management routines subsystem and an installation manager component agent in the component or the replacement component.
18 . The apparatus of claim 13 , in which the installation management routines subsystem supports the one or more user calls at the vestibule bank after a triggering action occurs.