tidb4.0.4升级到tidb4.0.12

实际操作：

1、下载4.0.12离线包

https://pingcap.com/download-cn/community/

2、升级tiup

cd /data1/update_tidb
tar xzvf tidb-community-server-v4.0.12-linux-amd64.tar.gz
[root@host-172-21-210-40 update_tidb]# tiup -version
v1.0.8 tiup
Go Version: go1.13
Git Branch: master
GitHash: 4276089
sh tidb-community-server-v4.0.12-linux-amd64/local_install.sh
source /home/tidb/.bash_profile
[tidb@host-172-21-210-40 update_tidb]$ tiup -version
1.4.0 tiup
Go Version: go1.16.2
Git Ref: v1.4.0
GitHash: eb335e6ad9d0dc19d1c43db422cd409d62bc3cea

3、升级cluster

[root@host-172-21-210-40 ~]# tiup cluster --version
Starting component `cluster`:  --version
tiup version v1.0.8 tiup
Go Version: go1.13
Git Branch: master
GitHash: 4276089
[root@host-172-21-210-40 update_tidb]# tiup update cluster
component cluster version v1.4.0 is already installed
Updated successfully!

4、升级集群（根据数据多少来定时间，数据越多时间越长）

[root@host-172-21-210-40 update_tidb]# tiup cluster upgrade tidb v4.0.12
Starting component `cluster`: /root/.tiup/components/cluster/v1.4.0/tiup-cluster upgrade tidb v4.0.12
This operation will upgrade tidb v4.0.4 cluster tidb to v4.0.12.
Do you want to continue? [y/N]:(default=N) 
Upgrading cluster...
+ [ Serial ] - SSHKeySet: privateKey=/root/.tiup/storage/cluster/clusters/tidb/ssh/id_rsa, publicKey=/root/.tiup/storage/cluster/clusters/tidb/ssh/id_rsa.pub
+ [Parallel] - UserSSH: user=tidb, host=172.21.210.40
+ [Parallel] - UserSSH: user=tidb, host=172.21.210.40
+ [Parallel] - UserSSH: user=tidb, host=172.21.210.44
+ [Parallel] - UserSSH: user=tidb, host=172.21.210.40
+ [Parallel] - UserSSH: user=tidb, host=172.21.210.40
+ [Parallel] - UserSSH: user=tidb, host=172.21.210.43
+ [Parallel] - UserSSH: user=tidb, host=172.21.210.45
+ [Parallel] - UserSSH: user=tidb, host=172.21.210.46
+ [Parallel] - UserSSH: user=tidb, host=172.21.210.40
+ [ Serial ] - Download: component=alertmanager, version=, os=linux, arch=amd64
+ [ Serial ] - Download: component=tikv, version=v4.0.12, os=linux, arch=amd64
+ [ Serial ] - Download: component=prometheus, version=v4.0.12, os=linux, arch=amd64
+ [ Serial ] - Download: component=tidb, version=v4.0.12, os=linux, arch=amd64
+ [ Serial ] - Download: component=grafana, version=v4.0.12, os=linux, arch=amd64
+ [ Serial ] - Download: component=tiflash, version=v4.0.12, os=linux, arch=amd64
+ [ Serial ] - Download: component=pd, version=v4.0.12, os=linux, arch=amd64
+ [ Serial ] - BackupComponent: component=pd, currentVersion=v4.0.4, remote=172.21.210.40:/data1/tidb-deploy/pd-2379
+ [ Serial ] - BackupComponent: component=tidb, currentVersion=v4.0.4, remote=172.21.210.40:/data1/tidb-deploy/tidb-4000
+ [ Serial ] - BackupComponent: component=alertmanager, currentVersion=v4.0.4, remote=172.21.210.40:/data1/tidb-deploy/alertmanager-9093
+ [ Serial ] - BackupComponent: component=tiflash, currentVersion=v4.0.4, remote=172.21.210.46:/data1/tidb-deploy/tiflash-9000
+ [ Serial ] - BackupComponent: component=tikv, currentVersion=v4.0.4, remote=172.21.210.45:/data1/tidb-deploy/tikv-20160
+ [ Serial ] - BackupComponent: component=tikv, currentVersion=v4.0.4, remote=172.21.210.43:/data1/tidb-deploy/tikv-20160
+ [ Serial ] - BackupComponent: component=prometheus, currentVersion=v4.0.4, remote=172.21.210.40:/data1/tidb-deploy/prometheus-9090
+ [ Serial ] - BackupComponent: component=grafana, currentVersion=v4.0.4, remote=172.21.210.40:/data1/tidb-deploy/grafana-3000
+ [ Serial ] - BackupComponent: component=tikv, currentVersion=v4.0.4, remote=172.21.210.44:/data1/tidb-deploy/tikv-20160
+ [ Serial ] - CopyComponent: component=pd, version=v4.0.12, remote=172.21.210.40:/data1/tidb-deploy/pd-2379 os=linux, arch=amd64
+ [ Serial ] - CopyComponent: component=tidb, version=v4.0.12, remote=172.21.210.40:/data1/tidb-deploy/tidb-4000 os=linux, arch=amd64
+ [ Serial ] - CopyComponent: component=alertmanager, version=, remote=172.21.210.40:/data1/tidb-deploy/alertmanager-9093 os=linux, arch=amd64
+ [ Serial ] - CopyComponent: component=prometheus, version=v4.0.12, remote=172.21.210.40:/data1/tidb-deploy/prometheus-9090 os=linux, arch=amd64
+ [ Serial ] - InitConfig: cluster=tidb, user=tidb, host=172.21.210.40, path=/root/.tiup/storage/cluster/clusters/tidb/config-cache/alertmanager-9093.service, deploy_dir=/data1/tidb-deploy/alertmanager-9093, data_dir=[/data1/tidb-data/alertmanager-9093], log_dir=/data1/tidb-deploy/alertmanager-9093/log, cache_dir=/root/.tiup/storage/cluster/clusters/tidb/config-cache
+ [ Serial ] - InitConfig: cluster=tidb, user=tidb, host=172.21.210.40, path=/root/.tiup/storage/cluster/clusters/tidb/config-cache/pd-2379.service, deploy_dir=/data1/tidb-deploy/pd-2379, data_dir=[/data1/tidb-data/pd-2379], log_dir=/data1/tidb-deploy/pd-2379/log, cache_dir=/root/.tiup/storage/cluster/clusters/tidb/config-cache
+ [ Serial ] - CopyComponent: component=tikv, version=v4.0.12, remote=172.21.210.44:/data1/tidb-deploy/tikv-20160 os=linux, arch=amd64
+ [ Serial ] - InitConfig: cluster=tidb, user=tidb, host=172.21.210.40, path=/root/.tiup/storage/cluster/clusters/tidb/config-cache/tidb-4000.service, deploy_dir=/data1/tidb-deploy/tidb-4000, data_dir=[], log_dir=/data1/tidb-deploy/tidb-4000/log, cache_dir=/root/.tiup/storage/cluster/clusters/tidb/config-cache
+ [ Serial ] - CopyComponent: component=tikv, version=v4.0.12, remote=172.21.210.43:/data1/tidb-deploy/tikv-20160 os=linux, arch=amd64
+ [ Serial ] - CopyComponent: component=tikv, version=v4.0.12, remote=172.21.210.45:/data1/tidb-deploy/tikv-20160 os=linux, arch=amd64
+ [ Serial ] - InitConfig: cluster=tidb, user=tidb, host=172.21.210.40, path=/root/.tiup/storage/cluster/clusters/tidb/config-cache/prometheus-9090.service, deploy_dir=/data1/tidb-deploy/prometheus-9090, data_dir=[/data1/tidb-data/prometheus-9090], log_dir=/data1/tidb-deploy/prometheus-9090/log, cache_dir=/root/.tiup/storage/cluster/clusters/tidb/config-cache
+ [ Serial ] - InitConfig: cluster=tidb, user=tidb, host=172.21.210.44, path=/root/.tiup/storage/cluster/clusters/tidb/config-cache/tikv-20160.service, deploy_dir=/data1/tidb-deploy/tikv-20160, data_dir=[/data1/tidb-data/tikv-20160], log_dir=/data1/tidb-deploy/tikv-20160/log, cache_dir=/root/.tiup/storage/cluster/clusters/tidb/config-cache
+ [ Serial ] - CopyComponent: component=tiflash, version=v4.0.12, remote=172.21.210.46:/data1/tidb-deploy/tiflash-9000 os=linux, arch=amd64
+ [ Serial ] - InitConfig: cluster=tidb, user=tidb, host=172.21.210.43, path=/root/.tiup/storage/cluster/clusters/tidb/config-cache/tikv-20160.service, deploy_dir=/data1/tidb-deploy/tikv-20160, data_dir=[/data1/tidb-data/tikv-20160], log_dir=/data1/tidb-deploy/tikv-20160/log, cache_dir=/root/.tiup/storage/cluster/clusters/tidb/config-cache
+ [ Serial ] - InitConfig: cluster=tidb, user=tidb, host=172.21.210.45, path=/root/.tiup/storage/cluster/clusters/tidb/config-cache/tikv-20160.service, deploy_dir=/data1/tidb-deploy/tikv-20160, data_dir=[/data1/tidb-data/tikv-20160], log_dir=/data1/tidb-deploy/tikv-20160/log, cache_dir=/root/.tiup/storage/cluster/clusters/tidb/config-cache
+ [ Serial ] - CopyComponent: component=grafana, version=v4.0.12, remote=172.21.210.40:/data1/tidb-deploy/grafana-3000 os=linux, arch=amd64
+ [ Serial ] - InitConfig: cluster=tidb, user=tidb, host=172.21.210.40, path=/root/.tiup/storage/cluster/clusters/tidb/config-cache/grafana-3000.service, deploy_dir=/data1/tidb-deploy/grafana-3000, data_dir=[], log_dir=/data1/tidb-deploy/grafana-3000/log, cache_dir=/root/.tiup/storage/cluster/clusters/tidb/config-cache
+ [ Serial ] - InitConfig: cluster=tidb, user=tidb, host=172.21.210.46, path=/root/.tiup/storage/cluster/clusters/tidb/config-cache/tiflash-9000.service, deploy_dir=/data1/tidb-deploy/tiflash-9000, data_dir=[/data1/tidb-data/tiflash-9000], log_dir=/data1/tidb-deploy/tiflash-9000/log, cache_dir=/root/.tiup/storage/cluster/clusters/tidb/config-cache
+ [ Serial ] - UpgradeCluster
Upgrading component tiflash
        Restarting instance 172.21.210.46
        Restart 172.21.210.46 success
Upgrading component pd
        Restarting instance 172.21.210.40
        Restart 172.21.210.40 success
Upgrading component tikv
        Evicting 2233 leaders from store 172.21.210.43:20160...
          Still waitting for 2233 store leaders to transfer...
          Still waitting for 2233 store leaders to transfer...
          Still waitting for 2233 store leaders to transfer...
          Still waitting for 2233 store leaders to transfer...
          Still waitting for 2232 store leaders to transfer...
          Still waitting for 2232 store leaders to transfer...
        Restarting instance 172.21.210.43
        Restart 172.21.210.43 success
        Evicting 3350 leaders from store 172.21.210.44:20160...
          Still waitting for 3350 store leaders to transfer...
          Still waitting for 3350 store leaders to transfer...
          Still waitting for 3284 store leaders to transfer...
          Still waitting for 3284 store leaders to transfer...
          Still waitting for 3284 store leaders to transfer...
          Still waitting for 3284 store leaders to transfer...
          Still waitting for 145 store leaders to transfer...
          Still waitting for 145 store leaders to transfer...
        Restarting instance 172.21.210.44
        Restart 172.21.210.44 success
        Evicting 3360 leaders from store 172.21.210.45:20160...
          Still waitting for 3360 store leaders to transfer...
          Still waitting for 3360 store leaders to transfer...
          Still waitting for 3360 store leaders to transfer...
          Still waitting for 3360 store leaders to transfer...
          Still waitting for 3215 store leaders to transfer...
          Still waitting for 3215 store leaders to transfer...
          Still waitting for 3215 store leaders to transfer...
          Still waitting for 79 store leaders to transfer...
          Still waitting for 79 store leaders to transfer...
          Still waitting for 79 store leaders to transfer...
          Still waitting for 79 store leaders to transfer...
        Restarting instance 172.21.210.45
        Restart 172.21.210.45 success
Upgrading component tidb
        Restarting instance 172.21.210.40
        Restart 172.21.210.40 success
Upgrading component prometheus
        Restarting instance 172.21.210.40
        Restart 172.21.210.40 success
Upgrading component grafana
        Restarting instance 172.21.210.40
        Restart 172.21.210.40 success
Upgrading component alertmanager
        Restarting instance 172.21.210.40
        Restart 172.21.210.40 success
Upgraded cluster `tidb` successfully