MariaDB to SAP HANA
real-time replication
TwinCommit replicates MariaDB to SAP HANA in real time by reading the MariaDB transaction log and applying every committed change exactly once and in commit order. Use it to migrate or continuously mirror MariaDB into SAP HANA with zero downtime, with no triggers or capture tables on the source.
MariaDB
log reader
commit-ordered · exactly-once
SAP HANA
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 SAP HANA
Array UPSERT and DELETE statements committed in the same transaction as the TwinCommit checkpoint.
Requirements
- ✓log_mode = normal
- ✓Technical user with LOG ADMIN and CATALOG READ
- ✓Primary keys on replicated tables
Setup
Set up MariaDB → SAP HANA 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 SAP HANA
Add a target block for SAP HANA. 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: saphana
host: hana.internal:30015
user: ${HANA_USER}
password: ${HANA_PASSWORD}
schema: REPLICA
tables:
- source: SALES.ORDERS
- source: SALES.ORDER_LINES
exclude_columns: [INTERNAL_NOTES]MariaDB to SAP HANA replication FAQ
How does TwinCommit replicate MariaDB to SAP HANA?
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TwinCommit reads changes from the MariaDB transaction log, buffers them per transaction, and applies each committed transaction to SAP HANA in commit order. Array UPSERT and DELETE statements committed in the same transaction as the TwinCommit checkpoint.
Does MariaDB to SAP HANA replication need triggers or capture tables?
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No. TwinCommit reads the MariaDB log directly and creates no objects in the source database.
Is MariaDB to SAP HANA replication exactly-once?
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Yes. TwinCommit commits its checkpoint in the same SAP HANA transaction as the data, so a crash or restart never loses or duplicates a transaction.
What MariaDB versions are supported?
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MariaDB 10.6, 10.11, 11.x · Galera Cluster · SkySQL · Amazon RDS for MariaDB.
Stream MariaDB to SAP HANA today.
Download the free Developer edition, or have one of our replication engineers walk you through a migration plan.