tidb初体验

安装

docker-compose:

https://github.com/pingcap/tidb-docker-compose

pd tikv tidb各单个节点，单个副本，限制内存，cpu等，防止给服务器搞宕机

先使用docker快速安装一个tidb体验一下子

version: '2.1'

services:
  pd0:
    image: pingcap/pd:latest
    ports:
      - "2379:2379"
    volumes:
      - ./config/pd.toml:/pd.toml:ro
      - ./data:/data
      - ./logs:/logs
    command:
      - --name=pd0
      - --client-urls=http://0.0.0.0:2379
      - --peer-urls=http://0.0.0.0:2380
      - --advertise-client-urls=http://pd0:2379
      - --advertise-peer-urls=http://pd0:2380
      - --initial-cluster=pd0=http://pd0:2380
      - --data-dir=/data/pd0
      - --config=/pd.toml
      - --log-file=/logs/pd0.log
    restart: on-failure
    mem_limit: 2g
    cpu_quota: 50000
    cpu_period: 20ms
#    networks:
#      - default
#    extra_hosts:
#    - "prometheus-dev.xx.com:192.168.100.96"

  tikv0:
    image: pingcap/tikv:latest
    ports:
      - "20180:20180"
      - "20160:20160"
    volumes:
      - ./config/tikv.toml:/tikv.toml:ro
      - ./data:/data
      - ./logs:/logs
    command:
      - --addr=0.0.0.0:20160
      - --advertise-addr=tikv0:20160
      - --data-dir=/data/tikv0
      - --status-addr=0.0.0.0:20180
      - --pd=pd0:2379
      - --config=/tikv.toml
      - --log-file=/logs/tikv0.log
    depends_on:
      - "pd0"
    restart: on-failure
    mem_limit: 2g
    cpu_quota: 50000
    cpu_period: 20ms
#    networks:
#      - default
#    extra_hosts:
#    - "prometheus-dev.xx.com:192.168.100.96"
  tidb:
    image: pingcap/tidb:latest
    ports:
      - "4000:4000"
      - "10080:10080"
    volumes:
      - ./config/tidb.toml:/tidb.toml:ro
      - ./logs:/logs
    command:
      - --store=tikv
      - --path=pd0:2379
      - --config=/tidb.toml
      - --log-slow-query=/logs/tidb_slow_query.log
      - --log-file=/logs/tidb.log
      - --advertise-address=tidb
    depends_on:
      - "tikv0"
    restart: on-failure
    mem_limit: 2g
    cpu_quota: 50000
    cpu_period: 20ms
#    networks:
#      - default
#    extra_hosts:
#    - "prometheus-dev.xx.com:192.168.100.96"

#networks:
#  default:
#    external: true
#    name: gibsdev_default

　可以接入已有的prometheus监控　

修改配置，限制内存为2g

配置

不要使用默认的配置，里面会有废弃的参数

[root@xuliang config]# cat pd.toml
##
[pd-server]
metric-storage = "http://prometheus-dev.xx.com"

[replication]
max-replicas = 1

[schedule]
leader-schedule-limit = 4
region-schedule-limit = 2048
replica-schedule-limit = 64
[root@xuliang config]# cat tidb.toml
mem-quota-query = 209715200
oom-use-tmp-storage = true
oom-action = "cancel"

[binlog]
enable = true
ignore-error = false

[log]
slow-threshold = 300

[performance]
txn-total-size-limit = 204857600
stmt-count-limit = 500000
[root@xuliang config]# cat tikv.toml

[raftstore]
sync-log = false
store-pool-size = 4

[readpool]
[readpool.coprocessor]
use-unified-pool = true
[readpool.storage]
use-unified-pool = false
[storage]
reserve-space = 0
[storage.block-cache]
capacity = "2048MB"
[root@xuliang config]#

　

配置主要参数，其他默认，看需要改：

主要参数：副本数，内存，cpu限制等，磁盘。。。

tidb：

txn-total-size-limit = 204857600

tikv：

  capacity = "2048MB" 此参数一定不能大于tikv最大内存，不然会oom

用户管理：

CREATE USER 'benchmark'@'%' IDENTIFIED BY '123456';

GRANT all on gid_test.* to benchmark@'%';

flush privileges;

show grants for 'benchmark';

revoke DROP on gid_test.* from 'benchmark'@'%';