TiDB Operator 1.1 GA Release Notes

Release date: May 28, 2020

TiDB Operator version: 1.1.0

Upgrade from v1.0.x

For v1.0.x users, refer to Upgrade TiDB Operator to upgrade TiDB Operator in your cluster. Note that you should read the release notes (especially breaking changes and action required items) before the upgrade.

Breaking changes since v1.0.0

• Change TiDB pod readiness probe from HTTPGet to TCPSocket 4000 port. This will trigger rolling-upgrade for the tidb-server component. You can set spec.paused to true before upgrading tidb-operator to avoid the rolling upgrade, and set it back to false when you are ready to upgrade your TiDB server (#2139, @weekface)

• --advertise-address is configured for tidb-server, which would trigger rolling-upgrade for the TiDB server. You can set spec.paused to true before upgrading TiDB Operator to avoid the rolling upgrade, and set it back to false when you are ready to upgrade your TiDB server (#2076, @cofyc)

• --default-storage-class-name and --default-backup-storage-class-name flags are abandoned, and the storage class defaults to Kubernetes default storage class right now. If you have set default storage class different than Kubernetes default storage class, set them explicitly in your TiDB cluster Helm or YAML files. (#1581, @cofyc)

• Add the timezone support for all charts (#1122, @weekface).

  For the tidb-cluster chart, we already have the timezone option (UTC by default). If the user does not change it to a different value (for example, Asia/Shanghai), none of the Pods will be recreated.

  If the user changes it to another value (for example, Aisa/Shanghai), all the related Pods (add a TZ env) will be recreated, namely rolling updated.

  The related Pods include pump, drainer, discovery, monitor, scheduled backup, tidb-initializer, and tikv-importer.

  All images' time zone maintained by TiDB Operator is UTC. If you use your own images, you need to make sure that the time zone inside your images is UTC.

Other Notable changes

• Fix TidbCluster upgrade bug when PodWebhook and Advancend StatefulSet are both enabled (#2507, @Yisaer)
• Support preemption in tidb-scheduler (#2510, @cofyc)
• Update BR to v4.0.0-rc.2 to include the auto_random fix (#2508, @DanielZhangQD)
• Supports advanced statefulset for TiFlash (#2469, @DanielZhangQD)
• Sync Pump before TiDB (#2515, @DanielZhangQD)
• Improve performance by removing TidbControl lock (#2489, @weekface)
• Support TiCDC in TidbCluster (#2362, @weekface)
• Update TiDB/TiKV/PD configuration to 4.0.0 GA version (#2571, @Yisaer)
• TiDB Operator will not do failover for PD pods which are not desired (#2570, @Yisaer)