/// <summary>
/// Schedules the next delayed execution
/// </summary>
private void ScheduleNext(Host currentHost)
{
if (Statement == null || Statement.IsIdempotent == false)
{
//its not idempotent, we should not schedule an speculative execution
return;
}
if (_executionPlan == null)
{
_executionPlan = Policies.SpeculativeExecutionPolicy.NewPlan(_session.Keyspace, Statement);
}
var delay = _executionPlan.NextExecution(currentHost);
if (delay <= 0)
{
return;
}
//There is one live timer at a time.
_nextExecutionTimeout = _session.Cluster.Configuration.Timer.NewTimeout(_ =>
{
// Start the speculative execution outside the IO thread
Task.Run(() =>
{
if (HasCompleted())
{
return;
}
RequestHandler.Logger.Info("Starting new speculative execution after {0}, last used host {1}", delay, currentHost.Address);
StartNewExecution();
});
}, null, delay);
}
/// <summary>
/// Schedules the next delayed execution
/// </summary>
private void ScheduleNext()
{
if (Statement == null || !(Statement.IsIdempotent ?? _session.Cluster.Configuration.QueryOptions.GetDefaultIdempotence()))
{
//its not idempotent, we should not schedule an speculative execution
return;
}
if (_executionPlan == null)
{
_executionPlan = Policies.SpeculativeExecutionPolicy.NewPlan(_session.Keyspace, Statement);
}
var delay = _executionPlan.NextExecution(_host);
if (delay <= 0)
{
return;
}
//There is one live timer at a time.
_nextExecutionTimeout = _session.Cluster.Configuration.Timer.NewTimeout(_ =>
{
if (HasCompleted())
{
return;
}
Logger.Info("Starting new speculative execution after {0}, last used host {1}", delay, _host.Address);
StartNewExecution();
}, null, delay);
}
private void SetScheduledMore(ISpeculativeExecutionPlan plan, int executions)
{
_scheduledMore.AddOrUpdate(plan, executions, (k, v) => executions);
}
private void SetScheduledMore(ISpeculativeExecutionPlan plan, int executions)
{
_scheduledMore.AddOrUpdate(plan, executions, (k, v) => executions);
}
