Help Center> Data Replication Service> Troubleshooting> Failure Cases> Real-Time Synchronization from MySQL to GaussDB(DWS)> Incremental Synchronization Error: PL/pgSQL function *** line *** at SQL statement

Updated on 2023-01-17 GMT+08:00

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Incremental Synchronization Error: PL/pgSQL function * line * at SQL statement

Scenarios

During incremental synchronization, an error is reported, and the log information is as follows: service INCREMENT failed, cause by: *** failed:tid: ***, sqno: ***, ERROR: dn_***_***: concurrent update under Stream mode is not yet supported here: SQL statement *** PL/pgSQL function *** line *** at SQL statement.

Possible Causes

A trigger exists in the destination database. After data is written to DRS, the trigger automatically starts to execute some SQL operations. However, an error is reported during the execution.

Solution

Disable or delete the trigger and wait until the DRS task restores.

Parent topic: Real-Time Synchronization from MySQL to GaussDB(DWS)

Previous topic: Incremental Synchronization Error: Check whether dws supports the DDL

Next topic: Real-Time Synchronization from MySQL to CSS/ES

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