- About DM
- DM Overview
- DM 5.3 Release Notes
- Basic Features
- Advanced Features
- Merge and Migrate Data from Sharded Tables
- Migrate from MySQL Databases that Use GH-ost/PT-osc
- Filter Certain Row Changes Using SQL Expressions
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- Manage a Data Migration Task
- Manually Handle Sharding DDL Lock
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- Reference
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- Release Notes
DM 1.0.5 Release Notes
Release date: April 27, 2020
DM version: 1.0.5
DM-Ansible version: 1.0.5
Improvements
- Improve the incremental replication speed when the
UNIQUE KEY
column has theNULL
value - Add retry for the
Write conflict
(9007 and 8005) error returned by TiDB
Bug fixes
- Fix the issue that the
Duplicate entry
error might occur during the full data import - Fix the issue that the migration task cannot be stopped or paused when the full data import is completed and the upstream has no written data
- Fix the issue the monitoring metrics still display data after the migration task is stopped
Detailed bug fixes and changes
- Improve the incremental replication speed when the
UNIQUE KEY
column has theNULL
value #588 #597 - Add retry for the
Write conflict
(9007 and 8005) error returned by TiDB #632 - Fix the issue that the
Duplicate entry
error might occur during the full data import #554 - Fix the issue that the migration task cannot be stopped or paused when the full data import is completed and the upstream has no written data #622
- Fix the issue the monitoring metrics still display data after the migration task is stopped #616
- Fix the issue that the
Column count doesn't match value count
error might be returned during the sharding DDL migration #624 - Fix the issue that some metrics such as
data file size
are incorrectly displayed when the paused task of full data import is resumed #570 - Add and fix multiple monitoring metrics #590 #594
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