kakerukaeru

mcrouter検証

検証項目

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

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

Ansible is nani

agenda

how to learn ansible
what is ansible

## 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

### 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

	# Make sure using latest Homebrew
	update
	upgrade

	# For cask
	tap caskroom/cask \|\| true
	install brew-cask


	# brew packages

	## 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@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

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

	sub vcl_backend_response {
	...