Shulou(Shulou.com)06/02 Report--

Basic functions of queues:

1. Execute immediately; yes

2. Delay execution; yes

3. Make sure to execute at least once; yes

4. Must be executed and at most once; no

Data structures used:

List 、 Sorted sets

Mechanism for delaying execution:

1. Put the data into the queues:queue_000:delayed of SortedSets type first.

2. When executing pop, execute the lua script to rpush the executable data in the queues:queue_000:delayed of SortedSets type into the queues:queue_ 000 of list type

Mechanisms to ensure successful implementation:

1. Put the data to be executed into the queues:queue_000:reserved of SortedSets type first.

2. When executing pop, execute the lua script to rpush the executable data in the queues:queue_000:reserved of SortedSets type into the queues:queue_ 000 of list type

3. The task was executed successfully. Delete the stored data from the queues:queue_000:reserved of SortedSets type.

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