TiDB V4.0.0 备份数据导入TiDB V6.1.0 报错 Variable 'tidb_index_lookup_concurrency' can't be set to the value of '-1'

TiDB V4.0.0 备份数据导入TiDB V6.1.0 报错 Variable ‘tidb_index_lookup_concurrency’ can’t be set to the value of ‘-1’

你好 是这样设置吗

https://docs.pingcap.com/zh/tidb/stable/system-variables#tidb_index_lookup_concurrency

https://docs.pingcap.com/zh/tidb/stable/backup-and-restore-using-dumpling-lightning#使用-dumpling-和-tidb-lightning-备份与恢复

https://docs.pingcap.com/zh/tidb/stable/benchmark-tidb-using-sysbench#数据导入

文档在这,你可以查阅一下~