You are viewing the documentation of an older version of the TiDB database (TiDB v3.1).
To upgrade TiFlash from the Pre-RC version to a later version, contact PingCAP for more information and help.
Before the upgrade, make sure that the cluster is started. To upgrade TiFlash nodes, take the following steps:
Back up the
mv tidb-ansible tidb-ansible-bak
Download tidb-ansible that corresponds to the tag of TiDB v3.1:
git clone -b $tag https://github.com/pingcap/tidb-ansible.git
Rolling upgrade TiFlash:
ansible-playbook rolling_update.yml --tags tiflash
Rolling upgrade the TiDB monitoring component: