arm架构服务器挂载移动硬盘怎么办 arm架构服务器装oracle

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mob64ca13ff9303 2024-08-30 14:18:57

文章标签 arm架构服务器挂载移动硬盘怎么办 python Python Programming 文章分类 架构后端开发

我行在 2018 年开始了基于 ARM 服务器平台的尝试，当前 TDSQL 的冷备数据全部保存在基于 ARM 服务器搭建的 CEPH 存储集群上，运行稳定。在今年贸易战的大背景下，我们数据库团队也尝试将各个数据库产品放到 ARM 平台上去编译并运行起来，为我行在基础架构层面的进一步国产化打下基础。

我们这次首先针对我行引入的 NewSQL 数据库 TiDB，在我行实验室的 ARM 平台上进行了编译和测试，预计会将整个测试流程和相关测试结论，整理为三篇技术文章分享出来，分别是:

（一）《TiDB 集群在 arm 平台编译、安装与部署》

（二）《sysbench 测试下 arm 平台 cpu ／内存／磁盘的能力》

（三）《 TiDB 在 arm 与 x86 平台的性能测试对比》

此次是系列文章的第一篇。

一、环境准备

PingCAP 提供了 TiDB-Ansible 部署方案，可以使用 Ansible 快速方便地部署一个完整的 TiDB 集群，而 TiDB-Ansible release-3.0 版本依赖 Ansible 2.4.2 及以上版本（Ansible>=2.4.2，最好是 2.7.11 版本），另外依赖 Python 模块：jinja2 >= 2.9.6 和 jmespath >= 0.9.0，而且内部的数据库服务器与外网一般是隔离的，所以只能选择离线安装：

1、机器准备

可以连接外网的 ARM 服务器一台部署目标机器三台、部署中控机一台

2、依赖包下载

以下是主要的依赖安装包（如果在安装过程中发现还缺少其他依赖包，可以按需下载）。

安装包	功能	下载方式
Ansible	PingCAP 提供了 TiDB-Ansible 部署方案，可以使用 Ansible 快速方便地部署一个完整的 TiDB 集群	在能联网的 ARM64 服务器使用 sudo yum install--downloadonly --downloaddir=./ansible ansible 命令来得到安装 ansible 的依赖 rpm 包
python2-jinja2-2.10-2.el7.noarch.rpm	python 依赖包	网络下载
python2-babel-2.7.0-1.fc31.noarch.rpm	python 依赖包	网络下载
python2-markupsafe-1.0-1.fc29.aarch64.rpm	python 依赖包	网络下载
python2-jmespath-0.9.0-1.el7.noarch.rpm	python 依赖包	网络下载
python2-pip-8.1.2-8.el7.noarch.rpm	pip 安装包	网络下载
mariadb-5.5.60-1.el7_5.aarch64.rpm	安装 mysql 客户端	网络下载
epel-release-7-11.noarch.rpm	安装扩展 epel 包	网络下载
sshpass-1.06-1.el7.aarch64.rpm	中控机 SSH 组件	网络下载

另外上图所示的依赖包只保证当前 ARM 环境可正常，但因为不同的服务器依赖可能不完全一样，所以在安装过程发现还缺少其他依赖包，若想安装其他依赖包，可自行网上寻找相关 RPM 包按需下载，实际我安装上述 RPM 包时也存在依赖性问题，但使用 RPM 强制安装已成功安装。

3、安装依赖包

[root@ip-localhost ansible]# cd ansible_pkg/	
[root@ip-localhost ansible_pkg]# rpm -Uvh *.rpm --nodeps --force	
warning: libyaml-0.1.4-11.el7_0.aarch64.rpm: Header V3 RSA/SHA256 Signature, key ID fd431d51: NOKEY	
warning: python2-babel-2.7.0-1.fc31.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID 3c3359c4: NOKEY	
warning: python2-markupsafe-1.0-1.fc29.aarch64.rpm: Header V3 RSA/SHA256 Signature, key ID 429476b4: NOKEY	
Preparing...                          ################################# [100%]	
Updating / installing...	
  1:python2-pyasn1-0.1.9-7.el7       ################################# [ 5%]	
  2:sshpass-1.06-1.el7               ################################# [ 10%]	
  3:python-ply-3.4-11.el7            ################################# [ 14%]	
  4:python-pycparser-2.14-1.el7      ################################# [ 19%]	
  5:python-cffi-1.6.0-5.el7          ################################# [ 24%]	
  6:python-idna-2.4-1.el7            ################################# [ 29%]	
  7:python-httplib2-0.9.2-0.2.el7    ################################# [ 33%]	
  8:python-enum34-1.0.4-1.el7        ################################# [ 38%]	
  9:python2-cryptography-1.7.2-2.el7 ################################# [ 43%]	
 10:python-paramiko-2.1.1-9.el7      ################################# [ 48%]	
 11:python2-pytz-2018.9-1.fc31       ################################# [ 52%]	
 12:python2-babel-2.7.0-1.fc31       ################################# [ 57%]	
 13:python2-markupsafe-1.0-1.fc29    ################################# [ 62%]	
 14:python2-jinja2-2.10-2.el7        ################################# [ 67%]	
 15:python2-jmespath-0.9.0-1.el7     ################################# [ 71%]	
 16:libyaml-0.1.4-11.el7_0           ################################# [ 76%]	
 17:PyYAML-3.10-11.el7               ################################# [ 81%]	
 18:ansible-2.8.2-1.el7              ################################# [ 86%]	
 19:python2-pip-8.1.2-8.el7          ################################# [ 90%]	
 20:mariadb-1:5.5.60-1.el7_5         ################################# [ 95%]	
 21:epel-release-7-11                ################################# [100%]

4、确认 ansible 是否安装成功

[root@ip-localhost ansible]# ansible --version	
ansible 2.8.2	
config file = /etc/ansible/ansible.cfg	
configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']	
ansible python module location = /usr/lib/python2.7/site-packages/ansible	
executable location = /bin/ansible	
python version = 2.7.5 (default, Oct 31 2018, 18:48:32) [GCC 4.8.5 20150623 (Red Hat 4.8.5-36)]

5、确认 jinja2 是否安装成功

[root@ip-localhost ansible]# pip show jinja2	
Metadata-Version: 1.1	
Name: Jinja2	
Version: 2.10	
Summary: A small but fast and easy to use stand-alone template engine written in pure python.	
Home-page: http://jinja.pocoo.org/	
Author: Armin Ronacher	
Author-email: armin.ronacher@active-4.com	
License: BSD	
Location: /usr/lib/python2.7/site-packages	
Requires: MarkupSafe	
Classifiers:	
Development Status :: 5 - Production/Stable	
Environment :: Web Environment	
Intended Audience :: Developers	
License :: OSI Approved :: BSD License	
Operating System :: OS Independent	
Programming Language :: Python	
Programming Language :: Python :: 2	
Programming Language :: Python :: 2.6	
Programming Language :: Python :: 2.7	
Programming Language :: Python :: 3	
Programming Language :: Python :: 3.3	
Programming Language :: Python :: 3.4	
Programming Language :: Python :: 3.5	
Programming Language :: Python :: 3.6	
Topic :: Internet :: WWW/HTTP :: Dynamic Content	
Topic :: Software Development :: Libraries :: Python Modules	
Topic :: Text Processing :: Markup :: HTML	
Entry-points:	
[babel.extractors]	
jinja2 = jinja2.ext:babel_extract[i18n]

6、确认 jmespath 是否安装成功

[root@ip-localhost ansible]# pip show jmespath	
Metadata-Version: 1.1	
Name: jmespath	
Version: 0.9.0	
Summary: JSON Matching Expressions	
Home-page: https://github.com/jmespath/jmespath.py	
Author: James Saryerwinnie	
Author-email: js@jamesls.com	
License: UNKNOWN	
Location: /usr/lib/python2.7/site-packages	
Requires:	
Classifiers:	
Development Status :: 5 - Production/Stable	
Intended Audience :: Developers	
Natural Language :: English	
License :: OSI Approved :: MIT License	
Programming Language :: Python	
Programming Language :: Python :: 2.6	
Programming Language :: Python :: 2.7	
Programming Language :: Python :: 3	
Programming Language :: Python :: 3.3	
Programming Language :: Python :: 3.4

二、编译 TiDB arm 版本

TiDB 包括三大组件 PD、TiKV Server 和 TiDB Server，还包括其他周边组件，比如 Pump、Prometheus、Alertmanager、Node_exporter、Blackbox_exporter、Pushgateway 和 Grafana，所以需要把这些组件都统一编译成 ARM 版本，而且要和官方版本对齐。
1、编译脚本示例

#!/bin/bash	
# Soft Version	
# TiDN Core	
tidb_version=release-3.0	
# TiDB Tools	
tispark_version=master	
dm_version=master	
# Monitor	
prometheus_version=v2.8.1	
alertmanager_version=v0.17.0	
node_exporter_version=v0.17.0	
# blackbox_exporter_version=v0.12.0	
#v0.12.0 meets some wrong	
blackbox_exporter_version=master	
pushgateway_version=v0.7.0	
grafana_version=6.1.6	
	
# Soft Dir	
declare -A soft_srcs	
	
soft_srcs=(	
# ["tidb"]="$tidb_version https://github.com/pingcap/tidb.git"	
# ["pd"]="$tidb_version https://github.com/pingcap/pd.git"	
# ["tikv"]="$tidb_version https://github.com/tikv/tikv.git"	
#   ["tispark"]="$tidb_version https://github.com/pingcap/tispark"	
  ["tidb-binlog"]="$tidb_version https://github.com/pingcap/tidb-binlog"	
["dm"]="$dm_version https://github.com/pingcap/dm"	
["prometheus"]="$prometheus_version https://github.com/prometheus/prometheus.git"	
["alertmanager"]="$alertmanager_version https://github.com/prometheus/alertmanager.git"	
["node_exporter"]="$node_exporter_version https://github.com/prometheus/node_exporter.git"	
["blackbox_version"]="$blackbox_exporter_version https://github.com/prometheus/blackbox_exporter.git"	
["pushgateway"]="$pushgateway_version https://github.com/prometheus/pushgateway.git"	
# ["grafana"]="$grafana_version https://github.com/grafana/grafana.git"	
)	
	
# Dir	
ROOT=$PWD/build	
target=$ROOT/bin	
rm -rf $ROOT	
mkdir -p $target	
	
sudo yum install -y gcc gcc-c++ wget git zlib-devel	
	
cd $ROOT	
# Go	
if which go >/dev/null; then	
   echo "go installed, skip"	
else	
   wget https://dl.google.com/go/go1.12.6.linux-arm64.tar.gz	
   sudo tar -C /usr/local -xzf go1.12.6.linux-arm64.tar.gz	
   echo "export GOPATH=$ROOT/go" >> ~/.bashrc	
   echo 'export PATH=$PATH:/usr/local/go/bin:$GOPATH/bin' >> ~/.bashrc	
   source ~/.bashrc	
fi	
	
# Rust	
if which rustc >/dev/null; then	
   echo "rust installed, skip"	
else	
   curl https://sh.rustup.rs -sSf | sh -s -- -y	
   source $HOME/.cargo/env	
fi	
	
# Install cmake3	
if which cmake3 >/dev/null; then	
   echo "cmake3 installed, skip"	
else	
   wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm	
	
   sudo rpm -ivh epel-release-latest-7.noarch.rpm	
   sudo yum install -y epel-release	
   sudo yum install -y cmake3	
	
   sudo ln -s /usr/bin/cmake3 /usr/bin/cmake	
fi	
	
# Install Java	
if which java >/dev/null;then	
echo "java installed, skip"	
else	
ce $ROOT	
wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u141-b15/336fa29ff2bb4ef291e347e091f7f4a7/jdk-8u141-linux-arm64-vfp-hflt.tar.gz"	
sudo tar -C /usr/local -xzf jdk-8u141-linux-arm64-vfp-hflt.tar.gz	
echo 'export JAVA_HOME=/usr/local/jdk1.8.0_141' >> ~/.bashrc	
echo 'export JRE_HOME=/user/local/jdk1.8.0_141/jre' >> ~/.bashrc	
echo 'export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin' >> ~/.bashrc	
fi	
	
	
# Install maven	
if which mvn >/dev/null;then	
echo "maven installed, skip"	
else	
wget https://mirrors.tuna.tsinghua.edu.cn/apache/maven/maven-3/3.6.1/binaries/apache-maven-3.6.1-bin.tar.gz	
sudo tar -C /usr/local -xzf apache-maven-3.6.1-bin.tar.gz	
echo 'export PATH=$PATH:/usr/local/apache-maven-3.6.1/bin' >> ~/.bashrc	
source ~/.bashrc	
fi	
	
	
# # RocksDB gflags	
# git clone https://github.com/gflags/gflags.git	
# cd gflags	
# git checkout v2.0	
# ./configure --build=aarch64-unknown-linux-gnu && make && sudo make install	
# cd $ROOT	
	
# Build Monitor	
for soft in $(echo ${!soft_srcs[*]})	
do	
soft_src=${soft_srcs[$soft]}	
cd $ROOT	
git clone -b $soft_src	
cd $soft	
make build	
if [ -d bin ];then	
cp bin/* $target	
else	
cp $soft $target	
fi	
cd $ROOT	
echo "`date +'%F %T'`: Build Soft $soft done ."	
done	
	
# Download Grafana	
cd $ROOT	
wget https://dl.grafana.com/oss/release/grafana-${grafana_version}.linux-arm64.tar.gz	
tar -zxvf grafana-${grafana_version}.linux-arm64.tar.gz	
	
cp grafana-${grafana_version}/bin/* bin/	
	
# Build TiDB	
cd $ROOT	
git clone -b $tidb_version https://github.com/pingcap/tidb	
cd tidb	
make	
cp bin/* $target	
# Build PD	
cd $ROOT	
git clone -b $tidb_version https://github.com/pingcap/pd	
cd pd	
make	
cp bin/* $target	
	
# Build TiKV	
cd $ROOT	
git clone -b $tidb_version https://github.com/tikv/tikv.git	
cd tikv	
ROCKSDB_SYS_SSE=0 make release	
cp target/release/tikv-*  $target	
	
# Build tispark	
cd $ROOT	
git clone -b $tispark_version https://github.com/pingcap/tispark	
cd tispark	
mvn clean install -Dmaven.test.skip=true -P spark-2.3

2、确认组件是否编译成功

[root@ip-localhost bin]# ll	
total 1492252	
-rwxr-xr-x 1 tidb tidb  25880636 Jul 25 16:21 alertmanager	
-rwxr-xr-x 1 tidb tidb  41476026 Jul 25 16:21 arbiter	
-rwxr-xr-x 1 tidb tidb  23086365 Jul 25 16:21 binlogctl	
-rwxr-xr-x 1 root root  16725668 Jul 25 16:48 blackbox_exporter	
-rwxr-xr-x 1 tidb tidb  42190443 Jul 25 16:21 dmctl	
-rwxr-xr-x 1 tidb tidb  42643818 Jul 25 16:21 dm-master	
-rwxr-xr-x 1 tidb tidb  41231475 Jul 25 16:21 dm-tracer	
-rwxr-xr-x 1 tidb tidb  45855210 Jul 25 16:21 dm-worker	
-rwxr-xr-x 1 tidb tidb  45378703 Jul 25 16:21 drainer	
-rwxr-xr-x 1 tidb tidb  20578913 Jul 25 16:21 grafana-cli	
-rw-r--r-- 1 tidb tidb        33 Jul 25 16:21 grafana-cli.md5	
-rwxr-xr-x 1 tidb tidb  41749049 Jul 25 16:21 grafana-server	
-rw-r--r-- 1 tidb tidb        33 Jul 25 16:21 grafana-server.md5	
-rwxr-xr-x 1 tidb tidb  15884939 Jul 25 16:21 node_exporter	
-rwxr-xr-x 1 tidb tidb  27341094 Jul 25 16:21 pd-ctl	
-rwxr-xr-x 1 tidb tidb  16345055 Jul 25 16:21 pd-recover	
-rwxr-xr-x 1 tidb tidb  36866195 Jul 25 16:21 pd-server	
-rwxr-xr-x 1 tidb tidb  16394398 Jul 25 16:21 pd-tso-bench	
-rwxr-xr-x 1 tidb tidb  68935640 Jul 25 16:21 prometheus	
-rwxr-xr-x 1 tidb tidb  32089280 Jul 25 16:21 pump	
-rwxr-xr-x 1 tidb tidb  14439632 Jul 25 16:21 pushgateway	
-rwxr-xr-x 1 tidb tidb  39814928 Jul 25 16:21 reparo	
-rwxr-xr-x 1 tidb tidb   8280869 Jul 25 16:21 shadow	
-rwxr-xr-x 1 tidb tidb  67211621 Jul 25 16:21 tidb-server	
-rwxr-xr-x 1 tidb tidb 197494880 Jul 25 16:21 tikv-ctl	
-rw-r--r-- 1 tidb tidb     20985 Jul 25 16:21 tikv-ctl.d	
-rwxr-xr-x 1 tidb tidb 207880328 Jul 25 16:21 tikv-importer	
-rw-r--r-- 1 tidb tidb     20995 Jul 25 16:21 tikv-importer.d	
-rwxr-xr-x 1 tidb tidb 355234696 Jul 25 16:21 tikv-server	
-rw-r--r-- 1 tidb tidb     20991 Jul 25 16:21 tikv-server.d	
-rw-r--r-- 1 tidb tidb  32650300 Jul 25 16:59 tispark-SNAPSHOT-jar-with-dependencies.jar

在 TiDB-Ansible 的 bootstrap.yml 阶段需要使用 fio 进行性能压测，所以需要额外下载一个 fio(version 3.8) 文件。

三、安装 TiDB

1、下载 tidb-ansible 以及完成相关初始化

根据 PingCAP 官网的离线 TiDB-Ansible 部署方案（https://pingcap.com/docs-cn/v3.0/how-to/deploy/orchestrated/offline-ansible/），完成以下初始化工作：

在中控机上创建 tidb 用户，并生成 ssh key
在下载机上下载 TiDB-Ansible 及 TiDB 安装包，但下载机不需要安装 ansible，具体操作如下：

下载 release-3.0 版本： $ git clone -b v3.0.0 https://github.com/pingcap/tidb-ansible.git 注：不需要执行 ansible-playbook local_prepare.yml，因为使用的是自己编译的 ARM 版二进制包

在中控机上配置部署机器 ssh 互信及 sudo 规则
在部署目标机器上安装 NTP 服务
在部署目标机器上配置 CPUfreq 调节器模式
在部署目标机器上添加数据盘 ext4 文件系统挂载参数

2、部署任务

## TiDB Cluster Part	
[tidb_servers]	
TiDB-1 ansible_host=127.0.0.1  deploy_dir=/tidb/deploy_tidb/tidb tidb_port=5000 tidb_status_port=10089 labels="host=ip-1"	
TiDB-2 ansible_host=127.0.0.2  deploy_dir=/tidb/deploy_tidb/tidb tidb_port=5000 tidb_status_port=10089 labels="host=ip-2"	
TiDB-3 ansible_host=127.0.0.3  deploy_dir=/tidb/deploy_tidb/tidb tidb_port=5000 tidb_status_port=10089 labels="host=ip-3"	
	
	
[tikv_servers]	
TiKV1-1 ansible_host=127.0.0.1 deploy_dir=/tidb/deploy_tidb/tikv1 tikv_port=20891  tikv_status_port=20181  labels="host=TiKV1-1"	
	
TiKV2-1 ansible_host=127.0.0.2 deploy_dir=/tidb/deploy_tidb/tikv1 tikv_port=20891  tikv_status_port=20181  labels="host=TiKV2-1"	
	
TiKV3-1 ansible_host=127.0.0.3 deploy_dir=/tidb/deploy_tidb/tikv1 tikv_port=20891  tikv_status_port=20181  labels="host=TiKV3-1"	
	
	
[pd_servers]	
PD01 ansible_host=127.0.0.1  deploy_dir=/tidb/deploy_tidb/pd pd_client_port=2589 pd_peer_port=2590 labels="host=ip-1"	
PD02 ansible_host=127.0.0.2  deploy_dir=/tidb/deploy_tidb/pd pd_client_port=2589 pd_peer_port=2590 labels="host=ip-2"	
PD03 ansible_host=127.0.0.3  deploy_dir=/tidb/deploy_tidb/pd pd_client_port=2589 pd_peer_port=2590 labels="host=ip-3"	
	
	
[spark_master]	
	
[spark_slaves]	
	
[lightning_server]	
	
[importer_server]	
	
## Monitoring Part	
# prometheus and pushgateway servers	
[monitoring_servers]	
#prometheus89 ansible_host=127.0.0.1 prometheus_port=7098 pushgateway_port=7099 labels="host=ip-127.0.0.1"	
127.0.0.1	
	
[grafana_servers]	
#grafanaleifu89 ansible_host=127.0.0.1 grafana_port=7002 grafana_collector_port=7088 labels="host=ip-127.0.0.1"	
127.0.0.1	
	
# node_exporter and blackbox_exporter servers	
[monitored_servers]	
nodeblack1  ansible_host=127.0.0.1        node_exporter_port=7102 blackbox_exporter_port=7117 labels="host=ip-1"	
nodeblack2  ansible_host=127.0.0.2        node_exporter_port=7102 blackbox_exporter_port=7117 labels="host=ip-2"	
nodeblack3  ansible_host=127.0.0.3        node_exporter_port=7102 blackbox_exporter_port=7117 labels="host=ip-3"	
	
	
[alertmanager_servers]	
127.0.0.1	
	
[kafka_exporter_servers]	
	
## Binlog Part	
[pump_servers]	
pump1 ansible_host=127.0.0.1  deploy_dir=/tidb/deploy_tidb/pump pump_port=8290	
pump2 ansible_host=127.0.0.2  deploy_dir=/tidb/deploy_tidb/pump pump_port=8290	
pump3 ansible_host=127.0.0.3  deploy_dir=/tidb/deploy_tidb/pump pump_port=8290	
	
[drainer_servers]	
	
## Group variables	
[pd_servers:vars]	
location_labels = ["host"]	
	
## Global variables	
[all:vars]	
deploy_dir = /tidb/deploy_tidb	
	
## Connection	
# ssh via normal user	
ansible_user = tidb	
	
cluster_name = test-cluster-30-ga	
	
tidb_version = v3.0.0	
	
# process supervision, [systemd, supervise]	
process_supervision = systemd	
	
timezone = Asia/Shanghai	
	
enable_firewalld = False	
# check NTP service	
enable_ntpd = True	
set_hostname = True	
	
## binlog trigger	
enable_binlog = True	
	
# kafka cluster address for monitoring, example:	
# kafka_addrs = "192.168.0.11:9092,192.168.0.12:9092,192.168.0.13:9092"	
kafka_addrs = ""	
	
# zookeeper address of kafka cluster for monitoring, example:	
# zookeeper_addrs = "192.168.0.11:2181,192.168.0.12:2181,192.168.0.13:2181"	
zookeeper_addrs = ""	
	
# enable TLS authentication in the TiDB cluster	
enable_tls = False	
	
# KV mode	
deploy_without_tidb = False	
	
# wait for region replication complete before start tidb-server.	
wait_replication = True	
	
# Optional: Set if you already have a alertmanager server.	
# Format: alertmanager_host:alertmanager_port	
alertmanager_target = ""	
	
grafana_admin_user = "admin"	
grafana_admin_password = "admin"	
	
	
### Collect diagnosis	
collect_log_recent_hours = 2	
	
enable_bandwidth_limit = True	
# default: 10Mb/s, unit: Kbit/s	
collect_bandwidth_limit = 10000

ansible-playbook bootstrap.yml

ansible-playbook deploy.yml

ansible-playbook start.yml

四、验证并使用

1、连接 TiDB

[root@ip-localhost ~]# mysql -uroot -h127.0.0.1 -P5000	
Welcome to the MariaDB monitor. Commands end with ; or \g.	
Your MySQL connection id is 207	
Server version: 5.7.25-TiDB-v3.0.1-36-g709ee4f-dirty MySQL Community Server (Apache License 2.0)	
	
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.	
	
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.	
	
MySQL [(none)]> select tidb_version();	
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+	
| tidb_version()                                                                                                                                                                                                                                                                                                                         |	
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+	
| Release Version: v3.0.1-36-g709ee4f-dirty	
Git Commit Hash: 709ee4f5c1cd08b43da651c32f78c1032a397c84	
Git Branch: release-3.0	
UTC Build Time: 2019-07-25 06:26:30	
GoVersion: go version go1.12.6 linux/arm64	
Race Enabled: false	
TiKV Min Version: 2.1.0-alpha.1-ff3dd160846b7d1aed9079c389fc188f7f5ea13e	
Check Table Before Drop: false |	
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+	
1 row in set (0.00 sec)	
	
MySQL [(none)]> create database db_arm;	
uQuery OK, 0 rows affected (1.02 sec)	
	
MySQL [(none)]> use db_arm	
Database changed	
MySQL [db_arm]> create table tb_arm(i int);	
Query OK, 0 rows affected (0.51 sec)	
	
MySQL [db_arm]> insert into tb_arm values(1);	
Query OK, 1 row affected (0.02 sec)	
	
MySQL [db_arm]> select * from tb_arm;	
+------+	
| i   |	
+------+	
|    1 |	
+------+	
1 row in set (0.00 sec)	
	
MySQL [db_arm]>

2、查看监控是否正常

TiDB 自带的监控展示平台 grafana:

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