TiDB Operator 1.3.1 Release Notes

Release date: February 24, 2022

TiDB Operator version: 1.3.1

Compatibility Change

• Due to the issues in #4434 and #4435, if you have deployed TiFlash v5.4.0 or later versions when using TiDB Operator v1.3.0 or v1.3.0-beta.1, you must upgrade TiDB Operator by taking the following steps to avoid TiFlash losing metadata.

  1. In TidbCluster spec, if the storage.rafe.dir and raft.kvstore_path fields in TiFlash's config spec.tiflash.config.config are not explicitly configured, you need to add the storage.raft.dir field. If storage.main.dir is not explicitly configured, you need to add the field.

     spec:
       # ...
       tiflash:
         config:
           config: |
             # ...
             [storage]
               [storage.main]
                 dir = ["/data0/db"]
               [storage.raft]
                 dir = ["/data0/db/kvstore/"]
     

  2. Upgrade TiDB Operator.

New Feature

• Add a new field spec.dnsPolicy to support configuring DNSPolicy for Pods (#4420, @handlerww)

Improvement

• tidb-lightning Helm chart uses local backend as the default backend (#4426, @KanShiori)

Bug fixes

• Fix the issue that if the raft.kvstore_path field or the storage.raft.dir field is not set in TiFlash's config, TiFlash will lose metadata after upgrading TiFlash to v5.4.0 or later versions when using TiDB Operator v1.3.0 or v1.3.0-beta.1 (#4430, @KanShiori)

• Fix the issue that TiFlash v5.4.0 or later versions does not work if the tmp_path field is not set in TiFlash's config when using TiDB Operator v1.3.0 or v1.3.0-beta.1 (#4430, @KanShiori)

• Fix the issue that TiDB cluster's PD components failed to start due to discovery service errors (#4440, @liubog2008)