# Need to create a new database and load a lot of data with replication

**URL:** <https://forums.percona.com/t/need-to-create-a-new-database-and-load-a-lot-of-data-with-replication/38253>\
**Category:** Percona Server for MySQL 8.0\
**Created:** [June 9, 2025, 4:39pm UTC](https://forums.percona.com/t/need-to-create-a-new-database-and-load-a-lot-of-data-with-replication/38253 "2025-06-09T16:39:04Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ipcmlr](https://avatars.discourse-cdn.com/v4/letter/i/df705f/32.png) [@ipcmlr](https://forums.percona.com/u/ipcmlr)\
**Post date:** [June 9, 2025, 4:39pm UTC](https://forums.percona.com/t/need-to-create-a-new-database-and-load-a-lot-of-data-with-replication/38253/1 "2025-06-09T16:39:04Z")

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I have a source and replica that is up and running and replicating.  
I have to create a new database and load about 200gb of data.  
I tried loading on the source but it causes a huge lag in the replica side ( its across the country)  
Can I use the following steps to do the loading:

1. binlog-ignore-db = new\_database
2. create database on both the source and replica
3. import data on both the source and the replica separately
4. remove binlog-ignore-db = new\_database

Will I run any issues after I remove the binlog-ignore-db? The replica will no longer look for the transactions I loaded previously, correct?

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**Author:** ![matthewb](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/matthewb/32/34_2.png) [@matthewb](https://forums.percona.com/u/matthewb)\
**Post date:** [June 9, 2025, 6:59pm UTC](https://forums.percona.com/t/need-to-create-a-new-database-and-load-a-lot-of-data-with-replication/38253/2 "2025-06-09T18:59:03Z")

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> [@ipcmlr](#):
>
> I have to create a new database and load about 200gb of data.  
> I tried loading on the source but it causes a huge lag in the replica side

That is very much expected. Ensure on the replica you have `replica_parallel_threads` \>= 4, and `replica_parallel_type` is set to `LOGICAL_CLOCK`

Your steps should work. The replica will not look for previous transactions.
