MySQL to Hive
real-time replication
TwinCommit replicates MySQL to Apache Hive in real time by reading the MySQL transaction log and applying every committed change exactly once and in commit order. Use it to feed Hive with live MySQL data for analytics, AI and reporting, with no triggers or capture tables on the source.
MySQL
log reader
commit-ordered · exactly-once
Hive
native writer
How capture works on MySQL
TwinCommit connects as a replica, reads the row-based binary log and tracks position by GTID, so failovers and replica promotions are seamless.
Prerequisites
- ✓binlog_format = ROW and binlog_row_image = FULL
- ✓GTID mode recommended
- ✓REPLICATION SLAVE and REPLICATION CLIENT grants
How apply works on Hive
Changes are written as ORC delta files and committed with Hive ACID MERGE, or as Iceberg snapshots through the Hive Metastore, depending on table format.
Requirements
- ✓Transactional (ACID) tables or Iceberg tables
- ✓HiveServer2 JDBC endpoint
- ✓Write access to the warehouse location
Setup
Set up MySQL → Hive in four steps
- 1
Prepare MySQL
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 Hive
Add a target block for Hive. 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: mysql
dsn: ${SOURCE_DSN}
server_id: 4201
target:
type: hive
jdbc_url: jdbc:hive2://hs2.internal:10000/default
table_format: iceberg
tables:
- source: SALES.ORDERS
- source: SALES.ORDER_LINES
exclude_columns: [INTERNAL_NOTES]MySQL to Hive replication FAQ
How does TwinCommit replicate MySQL to Hive?
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TwinCommit reads changes from the MySQL transaction log, buffers them per transaction, and applies each committed transaction to Hive in commit order. Changes are written as ORC delta files and committed with Hive ACID MERGE, or as Iceberg snapshots through the Hive Metastore, depending on table format.
Does MySQL to Hive replication need triggers or capture tables?
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No. TwinCommit reads the MySQL log directly and creates no objects in the source database.
Is MySQL to Hive replication exactly-once?
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Yes. TwinCommit commits its checkpoint in the same Hive transaction as the data, so a crash or restart never loses or duplicates a transaction.
What MySQL versions are supported?
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MySQL 5.7, 8.0, 8.4, 9.x · Amazon RDS & Aurora MySQL · Azure Database for MySQL · Cloud SQL.
Stream MySQL to Hive today.
Download the free Developer edition, or have one of our replication engineers walk you through a migration plan.