June 2015
Intermediate to advanced
290 pages
7h 37m
English
Content preview from Integration of Services into Workflow Applications
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Checkpointing in Workflow Optimization 121
engine may declare that the service has failed. In this case, without additional
knowledge about the node on which the service started N
ij
, the engine would
need to start a workflow rescheduling process as if the service was unavailable.
However, the service might still be running but may actually be slowed down
by additional load on node N
ij
. This scenario is shown in Figure 4.15.
FIGURE 4.15: Starting an alternative service after a timeout from an ex-
pected service termination time.
It is possible to optimize such a scenario by getting more knowledge about
the environment in which the service runs. In [57] ...
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