$30 off During Our Annual Pro Sale. View Details »
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Concurrency for distributed Web crawlers
Search
Takumi Sueda
March 01, 2017
Technology
2
3.5k
Concurrency for distributed Web crawlers
golang.tokyo #4 @ eureka, Inc.
Takumi Sueda
March 01, 2017
Tweet
Share
More Decks by Takumi Sueda
See All by Takumi Sueda
これまでのハード遊びまとめ ノンストップ40分スペシャル
puhitaku
1
160
令和最新版 OpenWrt を 22 年前のルーターで動かす
puhitaku
0
1.7k
組み込みLinuxの時系列
puhitaku
4
1.8k
電子辞書にステータスバーを実装する
puhitaku
0
330
知育おもちゃの遊び方 Lv. 999
puhitaku
5
3.2k
ルーターでプレゼンする
puhitaku
1
6.8k
AST as Black Magic
puhitaku
0
170
次世代の足下を舗装するコミュニティ
puhitaku
5
1.9k
電子辞書で学ぶ Linux のサスペンド
puhitaku
0
750
Other Decks in Technology
See All in Technology
AWS CLIの新しい認証情報設定方法aws loginコマンドの実態
wkm2
6
750
20251219 OpenIDファウンデーション・ジャパン紹介 / OpenID Foundation Japan Intro
oidfj
0
130
mairuでつくるクレデンシャルレス開発環境 / Credential-less development environment using Mailru
mirakui
5
540
Fashion×AI「似合う」を届けるためのWEARのAI戦略
zozotech
PRO
2
840
ActiveJobUpdates
igaiga
1
140
LLM-Readyなデータ基盤を高速に構築するためのアジャイルデータモデリングの実例
kashira
0
270
プロンプトやエージェントを自動的に作る方法
shibuiwilliam
13
11k
今年のデータ・ML系アップデートと気になるアプデのご紹介
nayuts
1
490
ウェルネス SaaS × AI、1,000万ユーザーを支える 業界特化 AI プロダクト開発への道のり
hacomono
PRO
0
130
1人1サービス開発しているチームでのClaudeCodeの使い方
noayaoshiro
1
350
AI-DLCを現場にインストールしてみた:プロトタイプ開発で分かったこと・やめたこと
recruitengineers
PRO
2
160
ExpoのインダストリーブースでみたAWSが見せる製造業の未来
hamadakoji
0
150
Featured
See All Featured
Thoughts on Productivity
jonyablonski
73
5k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
25
1.6k
It's Worth the Effort
3n
187
29k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
31
3k
A Tale of Four Properties
chriscoyier
162
23k
Visualization
eitanlees
150
16k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
4.1k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
132
19k
Imperfection Machines: The Place of Print at Facebook
scottboms
269
13k
GitHub's CSS Performance
jonrohan
1032
470k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
27k
Art, The Web, and Tiny UX
lynnandtonic
304
21k
Transcript
$PODVSSFODZGPSEJTUSJCVUFE8FCDSBXMFST HPMBOHUPLZP!FVSFLB *OD 5BLVNJ4VFEB
)J 5BLVNJ4VFEB !QVIJUBLV 'VMMFS *OD (PMBOH1ZUIPO$ 4PMEFSJOHFNCFEEFETZTUFN 8SJUJOH(PMBOHTJODF4FQUFNCFS
5PEBZˏTUPQJD JOUFSNTPGDPODVSSFODZ (PQIFS DSFBUFECZ3FOFF'SFODI $$#: GPS8FCDSBXMFST
5PEBZˏTUPQJD 8FCDSBXMFSGPSXIBU
5PEBZˏTUPQJD
5PEBZˏTUPQJD ˖ #SJFGFYQMBOBUJPOPGUIFDSBXMFSTZTUFN ˖ )PXXFVTF(PSPVUJOFBOE$IBOOFM $SBXMNJMMJPOBQQTFWFSZEBZ $POUJOVPVTDPOWFSTBUJPOPO4MBDL ˖
1JUGBMMBOETPMVUJPO
5PEBZˏTUPQJD ˖ #SJFGFYQMBOBUJPOPGUIFDSBXMFSTZTUFN ˖ )PXXFVTF(PSPVUJOFBOE$IBOOFM $SBXMNJMMJPOBQQTFWFSZEBZ $POUJOVPVTDPOWFSTBUJPOPO4MBDL ˖
1JUGBMMBOETPMVUJPO
$IBSBDUFSJTUJDTPGDSBXMUBSHFU ˖ 4JOHMFEPNBJO /PUUPNBLF)551(&5PPEPSZPVˏMM CFCBOOFEGSPNBDDFTT ˖ .BOZ L UBSHFUBQQT ˖
7BSJBCMFDPOUFOUTˏTJ[F *ODMVEJOHJNBHFTEPXOMPBEUJNF NBZWBSZ
$IBSBDUFSJTUJDTPGDSBXMUBSHFU ˖ 4JOHMFEPNBJO /PUUPNBLF)551(&5PPEPSZPVˏMM CFCBOOFEGSPNBDDFTT ˖ .BOZ L UBSHFUBQQT ˖
7BSJBCMFDPOUFOUTˏTJ[F *ODMVEJOHJNBHFTEPXOMPBEUJNF NBZWBSZ $SBXMUIFNBMM8JUIJOIST&WFSZEBZ
*OGPSNBOU UIFEJTUSJCVUFEDSBXMFSTZTUFN JOGPSNBOU <せ>䞔㜠䲿⣘罏 鸐濼罏 ˌGSPN薉鳤龤POUIF8&#
*OGPSNBOU UIFEJTUSJCVUFEDSBXMFSTZTUFN *OGPSNBOU $SBXMFS ˖ *ODSFBTFEFDSFBTF TDBMF DSBXMFST ˖ 1VTIMJTUPGUBSHFUBQQTJOUP"84
424 ˖ 3FQPSUTUBUVTWJB"84$MPVE8BUDI BOE4MBDL ˖ %FQMPZFEPO"84&$$POUBJOFS 4FSWJDFDBOCFTDBMFEFBTJMZ ˖ 3FUSJFWFUBSHFUBQQTGSPN424 ˖ 1VUDSBXMFETDSBQFEEBUBPO %ZOBNP%#BOE4 $PNNBOEFS
1IBTF"4DIFEVMF "QQTMJTU 424 "QQTMJTU "QQTMJTU "QQTMJTU 1VTI 1VTI 1VTI $PNNBOEFS
$PNNBOEFSQVTIFTBQQTMJTUT JOUPRVFVF "84424
1IBTF#4DBMFDSBXMFST $PNNBOEFS &$*OTUBODF $SBXMFS &$*OTUBODF $SBXMFS &$*OTUBODF $SBXMFS "QQTMJTU 424
"QQTMJTU "QQTMJTU "QQTMJTU $PNNBOEFSDPVOUTOVNCFSPG BQQTUIFOTDBMFTDSBXMFST
1IBTF$$SBXMBQQT $PNNBOEFS &$*OTUBODF $SBXMFS &$*OTUBODF $SBXMFS &$*OTUBODF $SBXMFS "QQTMJTU 424
"QQTMJTU "QQTMJTU "QQTMJTU 8FC %ZOBNP%# 4 *OWPLFEDSBXMFSTCFHJODSBXMJOH SFUSJFWJOHBQQMJTUGSPNRVFVF
5IVT &BDIEJTUSJCVUFEDSBXMFSTIBWF EJFSFOUHMPCBM*1BOEDBOCF TDBMFEBSCJUSBSJMZ $BOˏUFTUJNBUFDSBXMEVSBUJPO ˖ 4JOHMFEPNBJO /PUUPNBLF)551(&5PPEPSZPVˏMM CFCBOOFEGSPNBDDFTT ˖
.BOZ L UBSHFUBQQT ˖ 7BSJBCMFDPOUFOUTˏTJ[F *ODMVEJOHJNBHFTEPXOMPBEUJNF NBZWBSZ Cleared!
5PEBZˏTUPQJD ˖ #SJFGFYQMBOBUJPOPGUIFDSBXMFSTZTUFN ˖ )PXXFVTF(PSPVUJOFBOE$IBOOFM $SBXMNJMMJPOBQQTFWFSZEBZ $POUJOVPVTDPOWFSTBUJPOPO4MBDL ˖
1JUGBMMBOETPMVUJPO
6TFDBTF Crawl million apps every day!
$SBXMNJMMJPOBQQT4DIFNBUJD $PNNBOEFS &$*OTUBODF $SBXMFS &$*OTUBODF $SBXMFS &$*OTUBODF $SBXMFS "QQTMJTU 424
"QQTMJTU "QQTMJTU "QQTMJTU 8FC %ZOBNP%# 4
$SBXMNJMMJPOBQQT8JUIPVU(PSPVUJOF )551 (&5 TDSBQF $SBXMFS 5JNF 1VU%# JUFN 1SPDFTT JNBHFT
)551 (&5 TDSBQF 1VU%# JUFN 1SPDFTTJNBHFT )551 (&5 TDSBQF "QQ "QQ 1SPDFTTUJNFPGJNBHFT EPXOMPBE DPOWFSU VQMPBE UBLFTWBSJBCMFUJNF
$SBXMNJMMJPOBQQT8JUIPVU(PSPVUJOF )551 (&5 TDSBQF $SBXMFS 5JNF 1VU%# JUFN 1SPDFTT JNBHFT
$SBXMFS $BOOPUDPOUSPMFTUJNBUFDSBXMEVSBUJPO
$SBXMNJMMJPOBQQT8JUI(PSPVUJOF $SBXMFS 5JNF $SBXMEVSBUJPOJTHVBSBOUFFECZQFSJPEJDBMMZJOWPLFE(PSPVUJOFT $SBXMFS 8BJUEFTJSFEEVSBUJPOTUSJDUMZ *OWPLFOFX(PSPVUJOFFWFSZDSBXM
$SBXMNJMMJPOBQQT$PEF CFGPSF
$SBXMNJMMJPOBQQT$PEF BGUFS
6TFDBTF Continuous conversation on Slack
4MBDLDPOWFSTBUJPO$PNNBOEFS B4MBDLCPU $PNNBOEFSQSPWJEFT$IBU0QTGFBUVSF UPXBUDIDSBXMFST NJHSBUF%#
4MBDLDPOWFSTBUJPO$IBU0QTFYBNQMFT TUBUVTDSBXMFS
4MBDLDPOWFSTBUJPO$IBU0QTFYBNQMFT TUBUVTDSBXMFS $SBXMJOH1MBZ4UPSF+BQBO "QQ4UPSF64 1SPHSFTTQFSDFOUBHFJT 4JNQMFDPOWFSTBUJPOJOSFQMZ
4MBDLDPOWFSTBUJPO$IBU0QTFYBNQMFT )PXBCPVUDPOUJOVPVTXBUDI
4MBDLDPOWFSTBUJPO$IBU0QTFYBNQMFT TUBUVTDSBXMFS $SBXMJOH1MBZ4UPSF+BQBO TUBUVTDSBXMFS $SBXMJOH1MBZ4UPSF64 TUBUVTDSBXMFS $SBXMJOH"QQ4UPSF,PSFB _NJOMBUFS_ _NJOMBUFS_
4MBDLDPOWFSTBUJPO$IBU0QTFYBNQMFT
4MBDLDPOWFSTBUJPO$IBU0QTFYBNQMFT
4MBDLDPOWFSTBUJPO$IBU0QTFYBNQMFT 4MBDLIBTˑFEJUNFTTBHF˒GFBUVSF8IZOPUVTFJU
4MBDLDPOWFSTBUJPO *NQMFNFOUFEDPOWFSTBUJPO NFTTBHF PSJFOUFE4MBDLCPU XJUIHJUIVCDPNOMPQFTTMBDL
4MBDLDPOWFSTBUJPO%FNP
$PNNBOEHPSPVUJOF *OWPLFE $POWFSTBUJPOHPSPVUJOF 4DIFNBUJD EP" 5PLFOJ[FJOWPLFDNE 1SPHSFTT9 %FBMXJUI FWFOUBOE SFBDUJPOT
&WFOU$IBO 3FBDUJPO$IBO 3FQMZTFOEFNPKJ WJBSFBDUJPODIBO 1SPHSFTT: ̕&EJU $PNNBOEOTIFE 'JOJTIFE ̕&EJU $MPTF3FBDUJPO$IBO %FTUSPZVOTVCTDSJCF
$NEHPSPVUJOF $POOFDUCFUXFFODPOWFSTBUJPOBOEHPSPVUJOF UT 1SPHSFTT9 CPEZ 1SPHSFTT9 'JSTUSFQMZ 3FBDUJPODIBO &WFOU#SPBEDBTUFS
&WFOU$IBO UJNFTUBNQ DIBO 4FOEFNPKJ 3FBDUJPODIBO 1SPHSFTT: 4FDPOESFQMZ 3FBDUJPODIBO
4MBDLDPOWFSTBUJPO$PEF 35.FWFOUTJODPNJOHGSPN4MBDL MUFSFECZ&WFOU#SPBEDBTUFS 3FQMZ FNPKJGSPNDPNNBOE *OWPLFDPNNBOE 3FBDUJPOTGSPNDPNNBOE
4MBDLDPOWFSTBUJPO$PEF *GOP54JTSFHJTUFSFE QPTUSTUUIFOBEE54 "EE54UP&WFOU#SPBEDBTUFS &EJUNFTTBHF DPOWFSTBUJPO TJODF54SFHJTUFSFE
5PEBZˏTUPQJD ˖ #SJFGFYQMBOBUJPOPGUIFDSBXMFSTZTUFN ˖ )PXXFVTF(PSPVUJOFBOE$IBOOFM $SBXMNJMMJPOBQQTFWFSZEBZ $POUJOVPVTDPOWFSTBUJPOPO4MBDL ˖
1JUGBMMBOETPMVUJPO
1JUGBMMBOETPMVUJPO Over-consumption of TCP connection in parallelized DB operation
1JUGBMMDPOTVNF5$1DPOOFDUJPO "QQTMJTU 424 "QQTMJTU "QQTMJTU "QQTMJTU $PNNBOEFS %ZOBNP%# ,OPXOBQQUBCMF
<ˏKQGPPˏ ˏKQCBSˏ> (".&@"3$"%& (".& <ˏKQIPHFˏ ˏKQQJZPˏ> <ˏKQNJLVˏ ˏKQEBZPˏ> (".&@"%7&/563& (".&@"$5*0/ <ˏKQSJOˏ ˏKQMVLBˏ> $PNNBOEFSHFOFSBUFTBQQTMJTUGSPNBMPUPGJUFNTJOUBCMF 1BSBMMFMJ[FEXJUIHPSPVUJOFT
1JUGBMMDPOTVNF5$1DPOOFDUJPO $PNNBOEFS 26&3: 26&3: 26&3: )FBMUIZTUBUF 26&3:
1JUGBMMDPOTVNF5$1DPOOFDUJPO $PNNBOEFS 26&3: 26&3: 26&3: /PUIFBMUIZTUBUF TMPXJOUFSOFU TMPXRVFSZ FUD 26&3:
1JUGBMMDPOTVNF5$1DPOOFDUJPO $PNNBOEFS 26&3: 26&3: 26&3: 26&3: $POTVNFTBMMBWBJMBCMFDPOOFDUJPOJOXPSTUDBTF /PUIFBMUIZTUBUF TMPXJOUFSOFU TMPXRVFSZ
FUD
1JUGBMMDPOTVNF5$1DPOOFDUJPO GPS@ LFZSBOHFUBSHFU,FZT\ HPGVOD \ SFT FSS2VFSZ*UFN LFZ ^
UJNF4MFFQ EVSBUJPO $BMDVMBUFECZBOPUIFSHPSPVUJOF ^ 2VFSZ*UFN XJMMCFDBMMFEXJUINJOJNBMTQFFEDPOUSPM DPODVSSFOUDBMMTBSFOPUDPOTJEFSFE
4PMVUJPONBLFBMJNJUXJUIDIBOOFM MJNJU$IBONBLF DIBOJOU GPS@ LFZSBOHFUBSHFU,FZT\ MJNJU$IBO HPGVOD \
SFT FSS2VFSZ*UFN LFZ MJNJU$IBO ^ UJNF4MFFQ EVSBUJPO $BMDVMBUFECZBOPUIFSHPSPVUJOF ^ MJNJU$IBOCMPDLTJGMJNJU$IBOJTGVMM