Support adjusting period of metric log task after initialization

[ansiz]

Issue Description

Type: feature request

Describe what feature you want

目前metric log aggregator的ticker是在InitTask时初始化的，在运行过程中无法动态的降级日志，希望能够在运行时支持aggregator的降级

Additional context

Add any other context or screenshots about the feature request here.

[louyuting]

@ansiz Do you have effort to enhance this issue?

[ansiz]

@ansiz Do you have effort to enhance this issue?

not yet

[louyuting]

Support for adjusting period does not seem necessary.
Maybe we just support stop task is ok?

[ansiz]

Support for adjusting period does not seem necessary.
Maybe we just support stop task is ok?

I think it's ok