kakerukaeru

#!/bin/bash
_SENSU_USER_=sensu
_SENSU_PASS_=sensu
_SENSU_SERVER_=10.10.10.10

stop_monit () {
  _HTTP_STATUS_=`curl -s -m 5 -X POST http://${_SENSU_USER_}:${_SENSU_PASS_}@${_SENSU_SERVER_}:4567/stashes -d "{\"path\" : \"silence/$1\", \"content\" : {\"reason\" : \"${REASON}\"} }" -w "status:%{http_code}" -o /dev/null`

  if [ $_HTTP_STATUS_ != "status:201" ]; then
    echo "stop_monit command failed"

kakerukaeru

[root@kakeru-cache01 ~]# varnishlog -i ReqHeader,RespHeader,BereqHeader,BerespHeader
*   << BeReq    >> 360459    
-   BereqHeader    User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.13.1.0 zlib/1.2.3 libidn/1.18 libssh2/1.2.2
-   BereqHeader    Host: 10.10.10.10
-   BereqHeader    Accept: */*
-   BereqHeader    X-Forwarded-For: 10.10.10.20
-   BereqHeader    Accept-Encoding: gzip ################### backendへのreqにはAccept-Encoding: gzipを使用
-   BereqHeader    X-Varnish: 360459
-   BerespHeader   Server: nginx

kakerukaeru

### tcpdumpでHeaderを可視化するで。特定backendとの通信を見てみよか。
$ /usr/sbin/tcpdump -i bond0.2168 -s 3000 -A dst host <対象backendのIP> or src host <対象backendのIP>

################### passナシ
...!..3.GET /kakeru.css HTTP/1.1
User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.13.1.0 zlib/1.2.3 libidn/1.18 libssh2/1.2.2
Host: 10.10.10.10
Accept: */*
X-Forwarded-For: 10.10.10.10

kakerukaeru

## passナシ
[root@kakeru-varnish01 ~]# varnishlog -i ReqHeader,RespHeader,BereqHeader,BerespHeader
*   << BeReq    >> 32771     
-   BereqHeader    User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.13.1.0 zlib/1.2.3 libidn/1.18 libssh2/1.2.2
-   BereqHeader    Host: 10.10.10.10
-   BereqHeader    Accept: */*
-   BereqHeader    X-Forwarded-For: 10.10.10.20
-   BereqHeader    Accept-Encoding: gzip  ################### gzip付けてbackendに聞いてる 
-   BereqHeader    X-Varnish: 32771

kakerukaeru

sub vcl_recv {
if (req.url ~ "^/hogehoge") {
    set req.backend_hint = hogehoge;
    return (pass);  // ← remove code
  }
 ...
}

sub vcl_backend_response {
　... 

kakerukaeru

kakerukaeru@PC-kakeru:~/chef/kakeru (master)$ ssh 192.168.32.161 -lkakeru_kaeru_test
[email protected]'s password:                                        
UID must be less than 65535                                                          
Connection closed by 192.168.32.161  

kakerukaeru

Ansible is nani

---

agenda

• how to learn ansible
• what is ansible

kakerukaeru

LINE dev day

LINE Development Chromicle

• 全体的なアーキテクチャ
• LINEメッセージング基盤の進化
  • メッセージ基盤の歴史
    • 急成長やで
    • 2011/06
      • LINErelease、スマホアプリ、二ヶ月でrelease
• 初期のアーキテクチャ

kakerukaeru

## 構文check
varnishd -C -f /tmp/test.vcl 

## clientとのやり取りのlog
varnishlog -C 
### よくこれでStatusだけcheckしたりしてる
varnishlog -C | grep Status

## backendとのやり取りのlog
varnishlog -b  

kakerukaeru

mcrouter検証

検証項目

• mcrouter検証項目
• 動作検証
  • 機能検証？
    • pool
    • Replication
    • Hash