Help Center/
DataArts Studio/
FAQs/
DataArts Migration (Real-Time Jobs)/
What Should I Do If Error "number of requested standby connections exceeds max_wal_senders" Is Reported During Incremental Synchronization from GaussDB?
Updated on 2025-11-17 GMT+08:00
What Should I Do If Error "number of requested standby connections exceeds max_wal_senders" Is Reported During Incremental Synchronization from GaussDB?
Symptom
Error "number of requested standby connections exceeds max_wal_senders" is reported during incremental synchronization from GaussDB.
Possible Causes
The maximum number of threads for the incremental replication connections has been reached.
Solution
On the GaussDB parameter management page, increase the value of max_wal_senders by the number of real-time jobs with GaussDB as the source. The change takes effect only after the database is restarted.
Figure 1 Setting the parameter
Parent topic: DataArts Migration (Real-Time Jobs)
Feedback
Was this page helpful?
Provide feedbackThank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.
The system is busy. Please try again later.
For any further questions, feel free to contact us through the chatbot.
Chatbot
