对上了，tidb报错时间点[ERROR] [adapter.go:466] [“execute sql panic”] ，程序端报错：java.sql.BatchUpdateException: Your query has been cancelled due to exceeding the allowed memory limit for the tidb-server instance and this query is currently using the most memory. Please try narrowing your query scope or increase the tidb_server_memory_limit and try again。
说明确实有语句被cancel了