TiDB數據庫PD混合部署

?? ? ? pd多套集群部署同一機器的問題

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ???--2019-04-25 春雷

1、匯總

1.1、問題

多套tidb集群的pd? 部署在同樣的機器，pd的服務相同，導致pd無法啟動

版本：2.1.2

1.2、問題及解決

修改相關文件的端口部分解決

2、具體

2.1、具體問題

2.1.1、系統服務

/etc/systemd/system

pd.service

2.1.2、pd的啟停腳本

【${deploy_dir}/scripts/start_pd.sh】

#!/bin/bash?
set -e

# WARNING: This file was auto-generated. Do not edit!?
# All your edit might be overwritten!?
sudo systemctl start??pd.service

【?${deploy_dir}?/scripts/stop_pd.sh】

#!/bin/bash?
set -e

# WARNING: This file was auto-generated. Do not edit!?
# All your edit might be overwritten!?
sudo systemctl stop??pd.service

2.2、修復

tidb中控機：

【1、更改部署的】

/work/tidb/tidb-ansible-2.1/roles/pd/tasks/?systemd_deployment.yml

更改：

service_name: pd-?{{ pd_client_port }}

【2、滾動升級的】

/work/tidb/tidb-ansible-2.1/?rolling_update.yml

更改：

- name: stop PD by systemd?
systemd: name=pd?-{{ pd_client_port }}?.service state=stopped

- name: start PD by systemd?
systemd: name=pd?-{{ pd_client_port }}?.service state=started?

【3、更改start的】

/work/tidb/tidb-ansible-2.1/?start.yml

- name: start PD by systemd?
systemd: name=pd-?{{ pd_client_port }}?.service state=started

2.3、修復后結果

手動刪除目標pd機器的：

${deploy_dir}/scripts/start_pd.sh

${?deploy_dir?}?/scripts/stop_pd.sh

${?deploy_dir?}?/scripts/run_pd.sh

中控機重新部署：

ansible-playbook?deploy.yml??-l??pd機器IP

檢查：

start_pd.sh?

#!/bin/bash?
set -e

# WARNING: This file was auto-generated. Do not edit!?
# All your edit might be overwritten!?
sudo systemctl start?pd-10000?.service

stop_pd.sh

#!/bin/bash?
set -e

# WARNING: This file was auto-generated. Do not edit!?
# All your edit might be overwritten!?
sudo systemctl stop?pd-10000?.service

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cd /etc/systemd/system

pd-10000?.service

開啟：

ansible-playbook?start.yml