TiDB Operator 1.2.0-alpha.1 Release Notes

Release date: January 15, 2021

TiDB Operator version: 1.2.0-alpha.1

Rolling Update Changes

• Due to #3440, the Pod of TidbMonitor will be deleted and recreated after TiDB Operator is upgraded to v1.2.0-alpha.1.

New Features

• Deploy one TiDB cluster across multiple Kubernetes clusters (@L3T, @handlerww)
• Support DM 2.0 in TiDB Operator (@lichunzhu, @BinChenn)
• Auto-Scaling with PD API (@howardlau1999)
• Canary Upgrade of TiDB Operator (#3548, @shonge, #3554, @cvvz)

Improvements

• Add local backend support for the TiDB Lightning chart (#3644, @csuzhangxc)
• Add TLS support for the TiDB Lightning chart and TiKV Importer chart (#3598, @csuzhangxc)
• Support persisting checkpoint for TiDB Lightning helm chart (#3653, @csuzhangxc)
• Support Thanos sidecar for monitoring multiple clusters (#3579, @mikechengwei)
• Migrate from Deployment to StatefulSet for TidbMonitor (#3440, @mikechengwei)

Other Notable Changes

• Optimize rate limiter intervals (#3700, @dragonly)
• Change the directory to save the customized alert rules in TidbMonitor from tidb:${tidb_image_version} to tidb:${initializer_image_version}. Please note that if the spec.initializer.version in the TidbMonitor does not match with the TiDB version in the TidbCluster, upgrading TiDB Operator will cause the re-creation of the monitor Pod (#3684, @BinChenn)