Varnish

OSS

たぶん「ワニス」と読む

release note

turorials

Varnishはいくつかのツールの総体

本体

test code

log

log

リアルタイムに表示

参考

Varnishの概要

Docsの読み方、VCLの勘所などの紹介

VCLの例を見ながら1つずつ解説していく記事

概観が掴めて良い

略語集

特に拡張を入れずともラウンドロビンなどの各種バランシング·へルスチェックVCLでのロジック記述ができる

metricsが豊富

ログが強力で何か問題があった際の調査がしやすい

この辺がvarnishを使う良さらしい

有料の方のtutorial

起動

なにこれ

いつ実行するん

dockerでやったとき、これを実行していないのに起動してるっぽいのが謎

停止する

The Big Varnish Picture

Starting and running Varnish

Security first

Required command line arguments

CLI - bossing Varnish around

Storage backends

Transient Storage

Parameters

Sizing your cache

Reporting and statistics

Logging in Varnish

Statistics

Varnish and Website Performance

Achieving a high hitrate

The role of HTTP Headers

HTTP Vary

Cache misses

Uncacheable content

Purging and banning

Compression

Content composition with Edge Side Includes

Example: esi:include

Example: esi:remove and <!–esi … –>

Footnotes about ESI

Doing ESI on JSON and other non-XML’ish content

Ignoring BOM in ESI objects

ESI on invalid XML

ESI includes with HTTPS protocol

ESI on partial responses (206)

ESI and return(vcl(…))

Troubleshooting Varnish

When Varnish won’t start

Varnish is crashing - panics

Varnish is crashing - stack overflows

Varnish is crashing - segfaults

Varnish gives me Guru meditation

Varnish doesn’t cache

Bundled VMODs

VMOD blob - Utilities for the VCL blob type, encoding and decoding

VMOD cookie - Varnish Cookie Module

VMOD directors - Varnish Directors Module

VMOD proxy - Varnish Module to extract TLV attributes from PROXYv2

VMOD purge - Varnish Purge Module

VMOD std - Varnish Standard Module

VMOD unix - Utilities for Unix domain sockets

The CLI interface

VarnishAdm - Control program for Varnish

CLI - The commands varnish understands

Logging and monitoring

VSL - The log records Varnish generates

VSLQ - Filter/Query expressions for VSL

VarnishLog - Logging raw VSL

VarnishNCSA - Logging in NCSA format

VarnishHist - Realtime response histogram display

VarnishTop - Realtime activity display

Counters and statistics

VSC - The statistics Varnish collects

VarnishStat - Watching and logging statistics

The Varnishd program

VarnishD - The program which does the actual work

Varnishtest

VTC - Language for writing test cases

VarnishTest - execute test cases

VMOD vtc - Utility module for varnishtest

For Developers & DevOps

Shell tricks

VMODS - Extensions to VCL

VSM - Shared memory use

VDIR - Backends & Directors

VCLI - CLI protocol API

Code-book

VTLA - Varnish Three Letter Acronyms

追加機能のある有料版もある

4章