| Package | Description | 
|---|---|
| org.apache.cassandra.concurrent | 
| Modifier and Type | Field and Description | 
|---|---|
| static DebuggableScheduledThreadPoolExecutor | ScheduledExecutors. nonPeriodicTasksThis executor is used for tasks that can have longer execution times, and usually are non periodic. | 
| static DebuggableScheduledThreadPoolExecutor | ScheduledExecutors. optionalTasksThis executor is used for tasks that do not need to be waited for on shutdown/drain. | 
| static DebuggableScheduledThreadPoolExecutor | ScheduledExecutors. scheduledFastTasksThis pool is used for periodic fast (sub-microsecond) tasks. | 
| static DebuggableScheduledThreadPoolExecutor | ScheduledExecutors. scheduledTasksThis pool is used for periodic short (sub-second) tasks. | 
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