JerryBai0106 opened a new issue #4401:
URL: https://github.com/apache/incubator-dolphinscheduler/issues/4401
**Describe the question**
Due to our tasks are becoming more and more，and we find our mysql tables
(t_ds_task_instance，t_ds_process_instance) is bigger， so i get two questions
1. Dose the dolphinscheduler has auto clear mechanism??
2. t_ds_task_instance and t_ds_process_instance , those tables have
relationship?? may i delete those tables directly ?
looking forWord your replay
**Which version of DolphinScheduler:**
-[1.3.2-preview]
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