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· One min read

kafka​

quick demo​

# session 1
kafka-console-producer --broker-list   localhost:32773 --topic chat
# session 2 sync from 1
kafka-console-consumer --broker-server localhost:32773 --topic chat --form-beginning

deploy​

docker run -d --name zookeeper -p 2181:2181 zookeeper
docker run -d --name kafka -p 9092:9092 \
    --link zookeeper \
    --env KAFKA_ZOOKEEPER_CONNECT=192.168.31.229:2181 \
    --env KAFKA_ADVERTISED_HOST_NAME=192.168.31.229 \
    --env KAFKA_ADVERTISED_PORT=9092 \
    wurstmeister/kafka

old​

#第二步: 启动服务
bin/zookeeper-server-start.sh config/zookeeper.properties
bin/kafka-server-start.sh config/server.properties

#第三步: 新建一个话题Topic
bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test
bin/kafka-topics.sh --list --zookeeper localhost:2181

#第四步: 发送消息
bin/kafka-console-producer.sh --broker-list localhost:9092 --topic test

#第五步: 消费消息
bin/kafka-console-consumer.sh --zookeeper localhost:2181 --topic test --from-beginning

#info
bin/kafka-topics.sh --describe --zookeeper localhost:2181
bin/kafka-topics.sh --describe --zookeeper localhost:2181 --topic test

· One min read

参考 https://runnerlee.com/2017/08/18/influxdb-telegraf-grafana-monitor

全部配置​

docker run --rm telegraf:1.4-alpine telegraf config

influxdb curd​

curl -XPOST "http://influxdb:8086/query" --data-urlencode "q=CREATE DATABASE telegraf"

curl -G "http://localhost:8086/query?pretty=true" --data-urlencode "db=mydb" \
  --data-urlencode "q=SELECT * FROM cpu WHERE host='server01' AND time < now() - 1d"

curl -G "influxdb:8086/query?pretty=true" --data-urlencode "db=telegraf" \
  --data-urlencode "q=SELECT * FROM nginx"
curl -G "influxdb:8086/query?pretty=true" --data-urlencode "db=telegraf" \
  --data-urlencode "q=show MEASUREMENTS"

· 3 min read

using​

    logging:
      driver: syslog
      options:
        syslog-address: 'tcp://10.1.0.123:5000'

修改密码 cant cat /etc/kibana/kibana.yml | grep -B 2 password

sed -ie 's/#elasticsearch.username: "user"/elasticsearch.username: "admin"/g' /etc/kibana/kibana.yml sed -ie 's/#elasticsearch.password: "pass"/elasticsearch.password: "12341234"/g' /etc/kibana/kibana.yml

elk 完整版

login​

http://elk.bothub.ai/elk/
user
iruVkQ7L

sender filebeat​

install​

https://www.elastic.co/guide/en/beats/filebeat/current/filebeat-installation.html

conf​

vi /etc/filebeat/filebeat.yml

filebeat.prospectors:

- input_type: log
  document_type: js_error
  paths:
    - /var/log/nginx/tracking.log

- input_type: log
  document_type: laravel_error
  paths:
    - /var/www/rapture-api/storage/logs/laravel-error-*.log

output.logstash:
  enabled: true
  hosts: ["10.140.0.3:5044"]

restart​

// test ok
filebeat.sh -configtest -e
/etc/init.d/filebeat restart

getter elk

docker​

// 修改进程数
sysctl -w vm.max_map_count=262144
sysctl vm.max_map_count

// docker image sebp/elk:540
docker run -p 5601:5601 -p 9200:9200 -p 5044:5044 -it --name elk sebp/elk:540

server {
    listen 80;

    location / {
        ## 密码 http auth 密码生成
        # htpasswd -c .espasswd user
        # cat .espasswd
        # user:$apr1$Siq.2MpE$GREX96Q0RgpAYBnB67kKf0
        auth_basic              "Protected Kibana";
        auth_basic_user_file    /.espasswd;
        proxy_pass              http://kibana:5601;
    }
}

query​

type:nginx_access AND agent: '' -GoogleHC
type:js_error AND err_json.project:"rapture-admin-fe"
fields.appid: 'bitdata-web_php' AND fields.scope:'error'

conf​

cd /etc/logstash/conf.d
/opt/bitnami/ctlscript.sh restart logstash

input
{
    beats
    {
        ssl => false
        host => "0.0.0.0"
        port => 5044
    }
    gelf
    {
        host => "0.0.0.0"
        port => 12201
    }
    http
    {
        ssl => false
        host => "0.0.0.0"
        port => 8888
    }
    tcp
    {
        mode => "server"
        host => "0.0.0.0"
        port => 5010
    }
    udp
    {
        host => "0.0.0.0"
        port => 5000
    }
}

filter {
    if [type] == "nginx_access" {
        grok {
            match => { "message" => "%{COMBINEDAPACHELOG}" }
        }
        date {
            match => [ "timestamp" , "dd/MMM/yyyy:HH:mm:ss Z" ]
        }
    }
    if [type] == "laravel_error" {
        grok {
            match => { "message" => "\[%{TIMESTAMP_ISO8601:my_logdate}\] %{DATA:env}\.%{DATA:severity}: %{DATA:message_old}$" }
        }
        mutate {
            rename => {
                "@timestamp" => "read_timestamp"
                "message_old" => "message"
            }
        }
        date {
            match => [ "my_logdate", "yyyy-MM-dd HH:mm:ss" ]
            remove_field => "my_logdate"
            timezone => "Asia/Shanghai"
        }
    }
    if [type] == "js_error" {
        grok {
            match => { "message" => "\] \"%{DATA:request}\" \"%{DATA:agent}\" \"%{DATA:extra_fields}\"$" }
        }
        mutate {
            gsub => [
                "extra_fields", "\"","",
                "extra_fields", "\\x0A","",
                "extra_fields", "\\x22",'\"',
                "extra_fields", "(\\)",""
            ]
        }
        json {
            source => "extra_fields"
            target => "err_json"
            remove_field => ["message", "extra_fields"]
        }
        date {
            match => [ "timestamp" , "dd/MMM/yyyy:HH:mm:ss Z" ]
        }
    }
}

output
{
    // file { path => "/log_test/test-%{type}-%{+YYYY.MM.dd}.log" } // 调试用
    if "_grokparsefailure" in [tags] {
        file { path => "/log_test/error-%{type}-%{+YYYY.MM.dd}.log" }
    }

    elasticsearch
    {
        hosts => ["localhost"]
        index => "logstash-%{+YYYY.MM.dd}"
    }

}

· One min read

rancher​

sudo docker run -d --restart=unless-stopped -p 8080:8080 rancher/server:stable

sudo docker run --rm --privileged \
 -v /var/run/docker.sock:/var/run/docker.sock \
 -v /var/lib/rancher:/var/lib/rancher \
  rancher/agent:v1.2.9 http://192.168.199.7:8080/v1/scripts/DBB33093FAD05C390C97:1514678400000:g38ksyRrU9Badhb36BjQmckY1j8

· 2 min read

gpio-pin.png

gpio.py
# pip install rpi.gpio
import time

import RPi.GPIO as GPIO

# https://blog.csdn.net/guzhong10/article/details/80119322

# gpio mode 0 out
# gpio write 0 1



GPIO.setwarnings(False)

GPIO_PIN = 26

GPIO.setmode(GPIO.BCM)
GPIO.setup(GPIO_PIN, GPIO.OUT)

# L_Motor = GPIO.PWM(GPIO_PIN, 100)
# L_Motor.start(0)

while True:
    GPIO.output(GPIO_PIN, GPIO.HIGH)
    time.sleep(.5)
    print(GPIO.input(GPIO_PIN))

# while True:
#     GPIO.output(i, 1)
#     time.sleep(1)
#     GPIO.output(i, 0)
#     time.sleep(1)
run.py
import time

import RPi.GPIO as GPIO

GPIO.setmode(GPIO.BCM)  # 设置引脚的编码方式

delay = 5  # delay 2ms

pin_1 = 6
pin_2 = 13
pin_3 = 19
pin_4 = 26


def init():
    GPIO.setwarnings(False)
    GPIO.setup(pin_1, GPIO.OUT)
    GPIO.setup(pin_2, GPIO.OUT)
    GPIO.setup(pin_3, GPIO.OUT)
    GPIO.setup(pin_4, GPIO.OUT)


def forward(delay):
    setStep(1, 0, 0, 0)
    time.sleep(delay)
    setStep(0, 1, 0, 0)
    time.sleep(delay)
    setStep(0, 0, 1, 0)
    time.sleep(delay)
    setStep(0, 0, 0, 1)
    time.sleep(delay)


def setStep(w1, w2, w3, w4):
    # print(w1, w2, w3, w4)
    GPIO.output(pin_1, w1)
    GPIO.output(pin_2, w2)
    GPIO.output(pin_3, w3)
    GPIO.output(pin_4, w4)


init()
while True:
    forward(delay / 1000.0)
test.py
import time

import RPi.GPIO as GPIO

delay = 5  # delay 2ms

pin_1 = 6
pin_2 = 13
pin_3 = 19
pin_4 = 26
pin_1 = 26
pin_2 = 19
pin_3 = 13
pin_4 = 6

GPIO.setmode(GPIO.BCM)  # 设置引脚的编码方式


def init():
    GPIO.setwarnings(False)
    GPIO.setup(pin_1, GPIO.OUT)
    GPIO.setup(pin_2, GPIO.OUT)
    GPIO.setup(pin_3, GPIO.OUT)
    GPIO.setup(pin_4, GPIO.OUT)


def forward(delay):
    setStep(1, 0, 0, 0)
    time.sleep(delay)
    setStep(0, 1, 0, 0)
    time.sleep(delay)
    setStep(0, 0, 1, 0)
    time.sleep(delay)
    setStep(0, 0, 0, 1)
    time.sleep(delay)


def setStep(w1, w2, w3, w4):
    # print(w1, w2, w3, w4)
    GPIO.output(pin_1, w1)
    GPIO.output(pin_2, w2)
    GPIO.output(pin_3, w3)
    GPIO.output(pin_4, w4)


def main():
    init()
    while True:
        forward(delay / 1000.0)


main()  # 调用main

· One min read
echo $(docker-compose exec php ps -ef | grep crond)
docker-compose exec -T php crond -l 0 -L /var/runtime/crontab.log

docker-compose exec php crontab environments/$1/test/crontab

docker-compose exec php crontab -l

base​

# min   hour    day     month   weekday command
*/15    *       *       *       *       run-parts /etc/periodic/15min
0       *       *       *       *       run-parts /etc/periodic/hourly
0       2       *       *       *       run-parts /etc/periodic/daily
0       3       *       *       6       run-parts /etc/periodic/weekly
0       5       1       *       *       run-parts /etc/periodic/monthly

常用​

# prod
YII=/www/yii
LOG_DIR=/www/console/runtime/crontab

# min   hour    day     month   weekday command
*/1     *       *       *       *       php $YII zhao/test/hello >> $LOG_DIR/test.log 2>&1

· 5 min read

性能指标

怀疑CPU

  • sar -u
  • sar -q

怀疑内存

  • sar -B
  • sar -r
  • sar -W

怀疑I/O

  • sar -b
  • sar -u
  • sar -d

install​

sudo apt-get -y install sysstat

sar -u 1 5​

输出CPU使用情况的统计信息

Linux 4.4.0-1022-aws (aws-sandbox)  12/28/2017  _x86_64_    (4 CPU)

07:15:23 AM     CPU     %user     %nice   %system   %iowait    %steal     %idle
07:15:24 AM     all     46.95      0.00      3.05      0.00      0.00     50.00
07:15:25 AM     all     15.86      0.00      2.30      0.00      0.00     81.84
07:15:26 AM     all     10.66      0.00      0.51      0.00      0.00     88.83
07:15:27 AM     all     20.67      0.00      0.52      0.00      0.00     78.81
07:15:28 AM     all     12.12      0.00      0.00      0.00      0.25     87.63
Average:        all     21.25      0.00      1.27      0.00      0.05     77.42
CPU      all 表示统计信息为所有 CPU 的平均值
%user    显示在用户级别(application)运行使用 CPU 总时间的百分比
%nice    显示在用户级别，用于nice操作，所占用 CPU 总时间的百分比
%system  在核心级别(kernel)运行所使用 CPU 总时间的百分比
%iowait  显示用于等待I/O操作占用 CPU 总时间的百分比
%steal   管理程序(hypervisor)为另一个虚拟进程提供服务而等待虚拟 CPU 的百分比
%idle    显示 CPU 空闲时间占用 CPU 总时间的百分比
若 %iowait 的值过高，表示硬盘存在I/O瓶颈
若 %idle 的值高但系统响应慢时，有可能是 CPU 等待分配内存，此时应加大内存容量
若 %idle 的值持续低于 10，则系统的 CPU 处理能力相对较低，表明系统中最需要解决的资源是 CPU

sar –q 1 5​

查看平均负荷

Linux 4.4.0-1022-aws (aws-sandbox)  12/28/2017  _x86_64_    (4 CPU)

07:26:52 AM   runq-sz  plist-sz   ldavg-1   ldavg-5  ldavg-15   blocked
07:26:53 AM         6      2121      2.00      1.97      1.56         0
07:26:54 AM         0      2117      2.48      2.07      1.60         0
07:26:55 AM         0      2117      2.48      2.07      1.60         0
07:26:56 AM         1      2117      2.48      2.07      1.60         0
07:26:57 AM         3      2117      2.48      2.07      1.60         0
Average:            2      2118      2.38      2.05      1.59         0
runq-sz     运行队列的长度（等待运行的进程数） Run queue length (number of tasks waiting for run time)
plist-sz    进程列表中进程（processes）和线程（threads）的数量 Number of tasks in the task list.
ldavg-1     最后1分钟的系统平均负载（System load average）
ldavg-5     过去5分钟的系统平均负载
ldavg-15    过去15分钟的系统平均负载

sar -r 1 5​

内存和交换空间监控

Linux 4.4.0-1022-aws (aws-sandbox)  12/28/2017  _x86_64_    (4 CPU)

07:31:24 AM kbmemfree kbmemused  %memused kbbuffers  kbcached  kbcommit   %commit  kbactive   kbinact   kbdirty
07:31:25 AM    604560  15826960     96.32   2490348   2803236  25069280    152.57  11571660   2561176       268
07:31:26 AM    604440  15827080     96.32   2490348   2803236  25069280    152.57  11571984   2561176       268
07:31:27 AM    604440  15827080     96.32   2490348   2803236  25069280    152.57  11571984   2561176       268
07:31:28 AM    604440  15827080     96.32   2490348   2803236  25069280    152.57  11572008   2561176       268
07:31:29 AM    604316  15827204     96.32   2490348   2803236  25069280    152.57  11572308   2561176       268
Average:       604439  15827081     96.32   2490348   2803236  25069280    152.57  11571989   2561176       268
kbmemfree           这个值和free命令中的free值基本一致,所以它不包括buffer和cache的空间
kbmemused           这个值和free命令中的used值基本一致,所以它包括buffer和cache的空间
%memused            这个值是kbmemused和内存总量(不包括swap)的一个百分比
kbbuffers和kbcached 这两个值就是free命令中的buffer和cache
kbcommit            保证当前系统所需要的内存,即为了确保不溢出而需要的内存(RAM+swap)
%commit             这个值是kbcommit与内存总量(包括swap)的一个百分比

sar -b 1 5​

显示I/O和传送速率的统计信息

Linux 4.4.0-1022-aws (aws-sandbox)  12/28/2017  _x86_64_    (4 CPU)

07:21:50 AM       tps      rtps      wtps   bread/s   bwrtn/s
07:21:51 AM      4.00      0.00      4.00      0.00     72.00
07:21:52 AM      0.00      0.00      0.00      0.00      0.00
07:21:53 AM      7.00      0.00      7.00      0.00    320.00
07:21:54 AM      0.00      0.00      0.00      0.00      0.00
07:21:55 AM      1.00      0.00      1.00      0.00     32.00
Average:         2.40      0.00      2.40      0.00     84.63
tps     每秒钟物理设备的 I/O 传输总量
rtps    每秒钟从物理设备读入的数据总量
wtps    每秒钟向物理设备写入的数据总量
bread/s 每秒钟从物理设备读入的数据量，单位为 块/s
bwrtn/s 每秒钟向物理设备写入的数据量，单位为 块/s

· 3 min read

sh​

常用小技巧​

#!/bin/bash
set -o nounset # 变量必须存在
set -o errexit # set -e

# bash -n xxx # 检查语法
set -o verbose # bash -v xxx
set -o xtrace # bash -x xxx

## 函数封装
log () {
  local prefix="[$(date +%Y/%m/%d\ %H:%M:%S)]:"
  echo "${prefix} $@" >&2
}
log "INFO" "a message"

## 函数封装
ExactBashComments() {
  egrep "^#"
}
cat /etc/hosts | ExactBashComments | wc
comments=$(ExactBashComments < /etc/hosts)

## 只读 默认值
readonly DEFAULT_VAL=${DEFAULT_VAL:--99}
echo $DEFAULT_VAL # -99

## if
if [[ 100 > "${DEFAULT_VAL}" ]]; then
    echo 222
fi

tsdb => csv => sql => influx => oss​

# cd /z/wolanx/GiMC/src/backend/temp/mig
# chcp.com 65001
# sh ./db2csv.sh
# nohup bash all.sh > ~/1.log 2>&1 &
set -e

tt="20201231"
tz="20200101"
while [[ "${tt}" -ge "${tz}" ]];
do
    #tt="20220502"
    echo "start ${tt}"

    python3 db2csv.py $tt
    python2 /root/datax-wolanx/bin/datax.py /root/datax-wolanx/mig/${tt}.json > /dev/null
    rm ${tt}.json

    cat /z/data/${tt}__* > /z/data/${tt}.csv
    cat /z/data/${tt}.csv | wc -l
    rm /z/data/${tt}__*

    echo -e "# DML\n# CONTEXT-DATABASE: gimc-hk" > /z/data/${tt}.sql
    cat /z/data/${tt}.csv | awk -F',' '{printf "sensor_0s,SNO=%s %s=%s %s\n", $3, $1, $4, $2}' >> /z/data/${tt}.sql
    rm /z/data/${tt}.csv

    sed -i '/checkhitsdb/d' /z/data/${tt}.sql
    sed -i '/= /d' /z/data/${tt}.sql
    sed -i 's/ _/_/g' /z/data/${tt}.sql
    influx -ssl -host ts-xxx.influxdata.tsdb.aliyuncs.com -port 8086 -username grundfos -password password -database gimc-hk -import -path=/z/data/${tt}.sql -precision=s

    ossutil cp /z/data/${tt}.sql oss://oss-dcc-gimc-tsdb-hk/ds-hk-sql/
    rm /z/data/${tt}.sql

    echo "end ${tt}"

    tt=$(date -d "${tt} -1day" +%Y%m%d)
done

上传文件批量​

for ((a=10;a<=245;a++));do
    n=`printf "%03d" $a`;
    echo $n;
    echo $(curl -H 'Content-Type:text/plain' --data-binary @seofile_${n} "http://data.zz.baidu.com/urls?site=www.app-echo.com&token=3iyzwDoYB6IQAMKL");
done

循环机器执行​

#! /bin/bash

ips="
172.16.30.13
172.16.30.14
172.16.30.15
172.16.30.25
172.16.30.26
172.16.30.27
"
for ip in $ips
do
    echo "do @$ip"
    echo "=============================="
    # ssh root@$ip "pwd"

    ssh root@$ip '#!/bin/sh
echo $LANG
'

    # echo $doStr
    # ssh root@$ip $doStr

    echo "\n\n"
done

久游代码部署​

rsync -avl --delete    --exclude "log" --exclude "cli" --exclude "admin" --exclude "caches" --exclude "yaf_config.php" /usr/db/htdocs/au3/beta/ maintain@114.141.159.7:/usr/db/htdocs/au3/
#!/bin/bash
weball="
192.168.1.5
192.168.1.6
192.168.1.7
"
for ip in $weball
do
    rsync -avl --delete    --exclude "log" --exclude "cli" --exclude "caches" --exclude "upload" --exclude "fileupload"   -e ssh /usr/db/htdocs/yaf_aushop/preproduct/ maintain@$ip:/usr/db/htdocs/shop_with_yaf/

    echo "maintain@$ip is ok"

done

with ssh​

#! /bin/bash

ssh root@172.16.30.15 "pwd"

ssh www@172.16.45.87 '#!/bin/sh
    export LC_ALL=C
    hostname
    cd /srv/wwwroot/app
    git branch
    git pull
    git submodule init
    git submodule sync
    git submodule update
    git status
'

· One min read

安装过程 https://www.jianshu.com/p/7de00c73a2bb

.bash_profile​

alias l='ls -la'
alias dc='docker-compose'
alias gs='git status'
alias gd='git diff'

mintty

vi ~/.bash_profile

alias ..='cd ..'
alias tfa='terraform apply --auto-approve'

export TF_PLUGIN_CACHE_DIR="$HOME/.terraform.d/plugin-cache"

export PATH=$PATH:/d/Toolbox/apps/IDEA-U/ch-0/192.7142.36/jbr/bin

· One min read
tee /etc/locale.conf <<-'EOF'
LANG="en_US.utf8"
#LC_ALL="en_US.utf8"
LC_ALL="C"
EOF

tee /root/.vimrc <<-'EOF'
set encoding=utf-8
set fileencoding=utf-8
EOF

repo 修改源

# mv CentOS-Base.repo CentOS-Base.repo.bak
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum clean all
yum makecache #生产本地缓存
# yum-update

epel 加好多rpm

yum install -y epel-release

常用必装

yum install -y yum-utils    # yum-config-manager --add-repo
yum install -y htop
yum install -y tree
yum install -y net-tools    # netstat -ntlp

其他​

yum lock​

yum-complete-transaction

wifi​

dmesg | grep firmware
ip addr show wlo1
wpa_supplicant -B -i wlo1 -c <(wpa_passphrase "iPhone 8" "1234567890")

ssh remote​

yum list installed | grep openssh-server
yum install openssh-server

/etc/ssh/sshd_config
PermitRootLogin yes
PasswordAuthentication yes

sudo service sshd start