v2.1.4

nothing change

v2.1.3

• Pump
  - Add a API to get binlog by ts #449

• Drainer
  - Fix history job not sorted by schema version #444
  - Change default config value to more reasonable value #439 #442
  - Fix not skip rollback state ddl job #432
  - Fix data may not consistent when no pk but has uk #421

• Other
  - Add integration test for node status #416

a more stable version and better monitoring

• fix some bugs
• add more metrics to monitoring