{"id":36007,"date":"2019-10-31T22:09:07","date_gmt":"2019-10-31T19:09:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kak-ivan-metriki-devops-delal-obekt-vliyaniya\/"},"modified":"2019-10-31T22:09:07","modified_gmt":"2019-10-31T19:09:07","slug":"kak-ivan-metriki-devops-delal-obekt-vliyaniya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/administrirovanie\/kak-ivan-metriki-devops-delal-obekt-vliyaniya","title":{"rendered":"Cum Ivan a m\u0103surat metricele DevOps. Obiect de influen\u021b\u0103","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A trecut o s\u0103pt\u0103m\u00e2n\u0103 de c\u00e2nd Ivan a \u00eenceput s\u0103 reflecteze asupra metricilor DevOps \u0219i a realizat c\u0103 trebuie s\u0103 gestioneze timpul livr\u0103rii produsului cu ajutorul acestora.<\/a><\/noindex> (Time-To-Market).<\/p>\n

Chiar \u0219i \u00een weekend, se g\u00e2ndea la metrici: \u201eEi bine, ce dac\u0103 m\u0103sor timpul? Ce \u00eemi va aduce asta?\u201d.<\/p>\n

\u00centr-adev\u0103r, ce va aduce cunoa\u0219terea timpului? S\u0103 presupunem c\u0103 livrarea dureaz\u0103 5 zile. \u0218i ce mai departe? Este bine sau r\u0103u? Chiar dac\u0103 este r\u0103u, tot trebuie s\u0103 reducem cumva acest timp. Dar cum?
\nAceste g\u00e2nduri nu-i ofereau lini\u0219te, dar solu\u021bia nu venea.<\/p>\n

Ivan \u00een\u021belegea c\u0103 a ajuns la esen\u021b\u0103. Numeroasele grafice de metrici pe care le v\u0103zuse anterior l-au convins de mult c\u0103 abordarea standard nu va func\u021biona \u0219i c\u0103, dac\u0103 doar construie\u0219ti un grafic (chiar \u0219i unul pe cohort\u0103<\/a><\/noindex>), nu va avea niciun efect.<\/p>\n

Ce s\u0103 fac?\u2026<\/a><\/noindex><\/p>\n

O metric\u0103 este ca o rigl\u0103 de lemn obi\u0219nuit\u0103. M\u0103sur\u0103torile efectuate cu ajutorul acesteia nu vor spune motivul, de ce <\/b> pentru care obiectul m\u0103surat are exact lungimea ar\u0103tat\u0103. Rigla va ar\u0103ta doar dimensiunea sa \u0219i at\u00e2t. Nu este o piatr\u0103 filosofal\u0103, ci doar o bucat\u0103 de lemn folosit\u0103 pentru m\u0103surare.<\/p>\n

\u201e\u0218oarecele din o\u021bel inoxidabil\u201d al autorului s\u0103u preferat, Harry Harrison, spunea \u00eentotdeauna: g\u00e2ndul trebuie s\u0103 ajung\u0103 la fundul creierului \u0219i s\u0103 stea acolo, a\u0219a c\u0103, f\u0103r\u0103 a ob\u021bine rezultate dup\u0103 c\u00e2teva zile de zbucium, Ivan a decis s\u0103 se ocupe de o alt\u0103 task...<\/p>\n

Dup\u0103 c\u00e2teva zile, citind un articol despre magazinele online, Ivan a realizat brusc c\u0103 suma de bani pe care o prime\u0219te un magazin online depinde de comportamentul vizitatorilor site-ului. Exact ei, vizitatorii\/clien\u021bii, \u00eei ofer\u0103 magazinului banii lor \u0219i sunt sursa acestora. Se pare c\u0103 suma de bani ob\u021binut\u0103 de magazin este influen\u021bat\u0103 de schimb\u0103rile \u00een comportamentul clien\u021bilor, nu de altceva.<\/p>\n

Se dovedea c\u0103, pentru a schimba o m\u0103rime m\u0103surat\u0103, trebuia s\u0103 influen\u021b\u0103m pe cei care formeaz\u0103 acel indicator, adic\u0103 pentru a schimba suma de bani a unui magazin online, era necesar s\u0103 influen\u021b\u0103m comportamentul clien\u021bilor acestuia, iar pentru a schimba timpul de livrare \u00een DevOps era necesar s\u0103 influen\u021b\u0103m echipele care \u201ecreeaz\u0103\u201d acest timp, adic\u0103 folosesc DevOps \u00een activitatea lor.<\/p>\n

Ivan a realizat c\u0103 metricile DevOps nu trebuie s\u0103 fie doar grafice. Ele ar trebui s\u0103 reprezinte un instrument de c\u0103utare<\/b> a echipelor \u201eexcep\u021bionale\u201d, care formeaz\u0103 timpul de livrare final.<\/p>\n

Nici o metric\u0103 nu va ar\u0103ta vreodat\u0103 motivul pentru care o echip\u0103 a livrat o distribu\u021bie o perioad\u0103 lung\u0103 de timp, se g\u00e2ndea Ivan, deoarece \u00een realitate pot exista milioane de motive, iar unele dintre ele ar putea fi complet ne-tehnice, ci organiza\u021bionale. Adic\u0103, maximul pe care te po\u021bi a\u0219tepta s\u0103-l ob\u021bii de la metrici este performan\u021ba echipelor \u0219i rezultatele acestora, iar apoi va trebui s\u0103 mergi personal la aceste echipe \u0219i s\u0103 descoperi ce s-a \u00eent\u00e2mplat. <\/p>\n

Pe de alt\u0103 parte, \u00een compania lui Ivan exista un standard care obliga toate echipele s\u0103 verifice construc\u021biile pe mai multe standuri. O echip\u0103 nu putea trece la urm\u0103torul stand p\u00e2n\u0103 c\u00e2nd nu finaliza precedentul. Rezulta c\u0103, dac\u0103 am prezenta procesul DevOps ca o succesiune de treceri prin standuri, metricile ar putea ar\u0103ta timpul petrecut de echipe la aceste standuri. \u0218tiind standul \u0219i timpul echipei, se putea discuta mai concret cu ea despre motive.<\/p>\n

F\u0103r\u0103 s\u0103 stea pe g\u00e2nduri, Ivan a ridicat receptorul \u0219i a completat num\u0103rul unei persoane care \u00een\u021belegea bine detaliile DevOps:<\/p>\n

\u2014 Denis, po\u021bi s\u0103-mi spui, te rog, dac\u0103 exist\u0103 vreo modalitate de a \u00een\u021belege c\u0103 o echip\u0103 a trecut printr-un stand anume?
\n \u2014 Desigur. Jenkins-ul nostru elimin\u0103 un steag dac\u0103 construc\u021bia a fost implementat\u0103 cu succes (a trecut testul) pe stand.
\n \u2014 Super. \u0218i ce este un steag?
\n \u2014 Este un fi\u0219ier text obi\u0219nuit de tipul \u00abstand_OK\u00bb sau \u00abstand_FAIL\u00bb, care indic\u0103 dac\u0103 construc\u021bia a trecut sau nu standul. \u00cen\u021belegi, da?
\n \u2014 \u00cen principiu, da. Se scrie \u00een aceea\u0219i folder \u00een stocare unde se afl\u0103 construc\u021bia?
\n \u2014 Da.
\n \u2014 \u0218i ce se \u00eent\u00e2mpl\u0103 dac\u0103 construc\u021bia nu trece standul? Va trebui s\u0103 fac o nou\u0103 construc\u021bie?
\n \u2014 Aha.
\n \u2014 Bine, mul\u021bumesc. \u0218i \u00eenc\u0103 o \u00eentrebare: \u00een\u0163eleg corect c\u0103 voi putea folosi data cre\u0103rii steagului ca dat\u0103 a trecerii prin stand?
\n \u2014 Absolut!
\n \u2014 Super!<\/p>\n

\u00cenc\u00e2ntat, Ivan a pus receptorul jos \u0219i a realizat c\u0103 totul s-a a\u0219ezat la locul s\u0103u. Cunoa\u0219terea datei cre\u0103rii fi\u0219ierului de construc\u021bie \u0219i a datelor cre\u0103rii steagurilor permitea calcularea cu o precizie de o secund\u0103 a timpului pe care echipele \u00eel petrec pe fiecare stand \u0219i \u00een\u021belegerea unde \u00ee\u0219i pierd cel mai mult timp.<\/p>\n

\u00ab\u00cen\u021beleg\u00e2nd unde se pierde cel mai mult timp, putem identifica echipele precise, merge la ele \u0219i s\u0103 aprofund\u0103m problema\u00bb. Ivan a z\u00e2mbit.<\/p>\n

Pentru a dou\u0103 zi, \u0219i-a stabilit sarcina de a schi\u021ba arhitectura sistemului emergent.<\/p>\n

Continuarea urmeaz\u0103...
\n
Sursa: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u0440\u043e\u0448\u043b\u0430 \u043d\u0435\u0434\u0435\u043b\u044f \u0441 \u0442\u0435\u0445 \u043f\u043e\u0440 \u043a\u0430\u043a \u0418\u0432\u0430\u043d \u0432 \u043f\u0435\u0440\u0432\u044b\u0439 \u0440\u0430\u0437 \u0437\u0430\u0434\u0443\u043c\u0430\u043b\u0441\u044f \u043d\u0430\u0434 \u043c\u0435\u0442\u0440\u0438\u043a\u0430\u043c\u0438 DevOps \u0438 \u043f\u043e\u043d\u044f\u043b, \u0447\u0442\u043e \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0442\u044c \u0441 \u0438\u0445 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u043d\u0430\u0434\u043e \u0432\u0440\u0435\u043c\u0435\u043d\u0435\u043c \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0438 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0430 (Time-To-Market). \u0414\u0430\u0436\u0435 \u043d\u0430 \u0432\u044b\u0445\u043e\u0434\u043d\u044b\u0445 \u043e\u043d \u0434\u0443\u043c\u0430\u043b \u043f\u0440\u043e \u043c\u0435\u0442\u0440\u0438\u043a\u0438: \u00ab\u041d\u0443 \u0438 \u0447\u0442\u043e, \u0447\u0442\u043e \u044f \u0438\u0437\u043c\u0435\u0440\u044e \u0432\u0440\u0435\u043c\u044f? \u0427\u0442\u043e \u043e\u043d\u043e \u043c\u043d\u0435 \u0434\u0430\u0441\u0442?\u00bb \u0414\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e, \u0447\u0442\u043e \u0434\u0430\u0441\u0442 \u0437\u043d\u0430\u043d\u0438\u0435 \u0432\u0440\u0435\u043c\u0435\u043d\u0438? \u0414\u043e\u043f\u0443\u0441\u0442\u0438\u043c, \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0430 \u0437\u0430\u043d\u0438\u043c\u0430\u0435\u0442 5 \u0434\u043d\u0435\u0439. \u0418 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-36007","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Cum a folosit Ivan metricile DevOps. 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