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However, there are several scenarios issues to consider be considered in the implementation:
- What if some query node associated with the handoff or load balance process is suddenly down
- If there is a sudden downtime on query coord, how to properly resume the handoff and load balance tasks after the restart
- If the same sealed segment exists on different query nodes at the same time, whether it will have an impact on the final query results
- Different query nodes may not process query messages at the same speed, and how to ensure that different query nodes have the same global sealed segmentIDs when processing the same query message. If not handled well, it may cause the query to time out
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