MariaDB to Redshift
real-time replication
TwinCommit replicates MariaDB to Amazon Redshift in real time by reading the MariaDB transaction log and applying every committed change exactly once and in commit order. Use it to feed Redshift with live MariaDB data for analytics, AI and reporting, with no triggers or capture tables on the source.
MariaDB
log reader
commit-ordered · exactly-once
Redshift
native writer
How capture works on MariaDB
TwinCommit reads the row-based binary log as a replica using MariaDB GTIDs, and follows Galera cluster failover automatically.
Prerequisites
- ✓binlog_format = ROW and binlog_row_image = FULL
- ✓REPLICATION SLAVE and BINLOG MONITOR grants
- ✓log_slave_updates on Galera nodes
How apply works on Redshift
Micro-batches are written to S3 as Parquet, loaded with COPY into staging tables, and applied with MERGE in one transaction together with the checkpoint.
Requirements
- ✓An S3 staging bucket and IAM role for COPY
- ✓A database user with CREATE on the target schema
- ✓Network path to the cluster or workgroup endpoint
Setup
Set up MariaDB → Redshift in four steps
- 1
Prepare MariaDB
Run twincommit check. It verifies binlog_format = row and binlog_row_image = full and the other prerequisites, and prints the exact fix for anything missing.
- 2
Point at Redshift
Add a target block for Redshift. TwinCommit can generate target DDL with twincommit ddl -apply.
- 3
Snapshot
twincommit snapshot copies each table under a brief share lock and records the exact log position.
- 4
Stream
twincommit run streams every committed change from that position, exactly once and in commit order.
source:
type: mariadb
dsn: ${SOURCE_DSN}
server_id: 4201
target:
type: redshift
host: analytics.123456789.us-east-1.redshift-serverless.amazonaws.com
database: dev
staging_bucket: s3://acme-twincommit-staging
iam_role: arn:aws:iam::123456789012:role/twincommit-copy
tables:
- source: SALES.ORDERS
- source: SALES.ORDER_LINES
exclude_columns: [INTERNAL_NOTES]MariaDB to Redshift replication FAQ
How does TwinCommit replicate MariaDB to Redshift?
+
TwinCommit reads changes from the MariaDB transaction log, buffers them per transaction, and applies each committed transaction to Redshift in commit order. Micro-batches are written to S3 as Parquet, loaded with COPY into staging tables, and applied with MERGE in one transaction together with the checkpoint.
Does MariaDB to Redshift replication need triggers or capture tables?
+
No. TwinCommit reads the MariaDB log directly and creates no objects in the source database.
Is MariaDB to Redshift replication exactly-once?
+
Yes. TwinCommit commits its checkpoint in the same Redshift transaction as the data, so a crash or restart never loses or duplicates a transaction.
What MariaDB versions are supported?
+
MariaDB 10.6, 10.11, 11.x · Galera Cluster · SkySQL · Amazon RDS for MariaDB.
Stream MariaDB to Redshift today.
Download the free Developer edition, or have one of our replication engineers walk you through a migration plan.