Note:
This topic has been translated from a Chinese forum by GPT and might contain errors.Original topic: ticdc changefeed延时,sorter output events/s为0

[TiDB Usage Environment] Production Environment
[TiDB Version] v5.4.3
[Encountered Problem: Phenomenon and Impact]
cdc changefeed intermittently delays by 10~50 minutes;
During the delay, observing the Grafana monitoring, it was found that sorter output event/s dropped to 0
At the same time, unified sorter on disk data size increased significantly
The pressure on downstream Kafka during the corresponding time period is also normal.
What could be causing the delay?