trait Scheduler[S <: Scheduling] extends MetricProvider[S]
A scheduler interpret a Workflow and instanciate Executions for all defined Jobs. For example, a typical cuttle Scheduler is the TimeSeries scheduler that executes the graph for each time partition.
- S
The king of Scheduling managed by this Scheduler.
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abstract
def
start(jobs: Workload[S], executor: Executor[S], xa: XA, logger: Logger): Unit
Starts the scheduler for the given Workflow.
Starts the scheduler for the given Workflow. Immediatly the scheduler will start interpreting the workflow and generate Executions sent to the provided Executor.
- jobs
The jobs to run.
- executor
The executor to use to run the generated Executions.
- xa
The doobie transactor to use to persist the scheduler state if needed.
- logger
The logger to use to log internal debug state if neeed.
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val
allContexts: doobie.imports.Fragment
Provide a doobie SQL
Fragment
used to retrieve all execution contexts from the execution logs.Provide a doobie SQL
Fragment
used to retrieve all execution contexts from the execution logs.This fragment must be a SELECT query returning (id,json) tuples for all known scheduling contexts.
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def
getMetrics(jobIds: Set[String], jobs: Workload[S]): Seq[Metric]
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def
getStats(jobs: Set[String]): Json
Returns a Json object containing the internal scheduler statistics informations.
Returns a Json object containing the internal scheduler statistics informations. These data will be send to the UI and can be used by the scheduler UI if needed.
- jobs
Filter the statistics for the provided list of jobs.
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