This changes the periodic job that deletes terminated sessions to delete
the those sessions in batches. Prior to this, a single SQL DELETE
command was used to delete all qualifying terminated sessions. In
systems under heavy load, the statement could timeout leading to a
situation where no qualifying terminated sessions were ever being
deleted.
This adds retries as an attribute to JobStatus allowing a job to
indicate liveness to the scheduler when work has not progressed.
A job could use this and the statusThreshold passed into the Run method
to break work up into batches that would otherwise timeout if all the
work was attempted at once, for example a long running SQL delete
command.
Michael Gaffney
Timothy Messier
Hugo