CUBA scheduled tasks mechanism is intended to perform scheduled execution of arbitrary Spring beans methods in the Middleware block. The purposes of this mechanism and its distinction from the above mentioned standard Spring Framework mechanism are:
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The ability to configure tasks while running an application without restarting the server.
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The coordination of singleton tasks in the Middleware cluster, including:
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Reliable protection from simultaneous execution.
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Binding tasks to servers by priorities.
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A singleton task is a task which must be performed only on one server at a certain moment of time. For example, reading from a queue and sending emails.
