{"id":36784,"date":"2019-10-31T22:13:47","date_gmt":"2019-10-31T19:13:47","guid":{"rendered":"https:\/\/prohoster.info\/blog\/opyt-ustanovki-apache-airflow-na-windows-10\/"},"modified":"2019-10-31T22:13:47","modified_gmt":"2019-10-31T19:13:47","slug":"opyt-ustanovki-apache-airflow-na-windows-10","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/administrirovanie\/opyt-ustanovki-apache-airflow-na-windows-10","title":{"rendered":"Erfaring med installation af Apache Airflow p\u00e5 Windows 10","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Pr\u00e6ambel<\/b>: sk\u00e6bnet har f\u00f8rt mig fra en akademisk baggrund (medicin) til en verden af informationsteknologi, hvor jeg m\u00e5 bruge mine kompetencer inden for eksperimentelle metoder og strategier til analyse af eksperimentelle data, mens jeg anvender teknologi, som er ny for mig. I processen med at mestre disse teknologier st\u00e5r jeg over for en r\u00e6kke vanskeligheder, som indtil videre heldigvis lykkes mig at overvinde. M\u00e5ske vil dette indl\u00e6g v\u00e6re nyttigt for dem, der ogs\u00e5 lige er begyndt at arbejde med Apache-projekter. <\/p>\n

S\u00e5 til sagen<\/b>. Inspireret af en artikel <\/a><\/noindex> Yuri Emelyanov om mulighederne med Apache Airflow inden for automatiseringen af analytiske procedurer, \u00f8nskede jeg at begynde at bruge det foresl\u00e5ede s\u00e6t af biblioteker i mit arbejde. For dem, der overhovedet ikke er bekendte med Apache Airflow, kan en lille oversigt v\u00e6re interessant artikel <\/a><\/noindex> p\u00e5 hjemmesiden for N. E. Bauman Nationalbiblioteket. <\/p>\n

Da de almindelige instruktioner til at starte Airflow tilsyneladende ikke anvendes i Windows-milj\u00f8et, og det ville v\u00e6re overfl\u00f8digt at bruge Docker <\/a><\/noindex> i mit tilf\u00e6lde, begyndte jeg at s\u00f8ge efter andre l\u00f8sninger. Heldigvis for mig var jeg ikke den f\u00f8rste p\u00e5 denne vej, s\u00e5 jeg fandt en fantastisk videoguide<\/a><\/noindex> til installation af Apache Airflow p\u00e5 Windows 10 uden at bruge Docker. Men som det ofte er tilf\u00e6ldet, opstod der vanskeligheder ved at f\u00f8lge de anbefalede trin, og jeg antager, at jeg ikke er den eneste. Derfor vil jeg gerne dele min erfaring med installationen af Apache Airflow, s\u00e5 m\u00e5ske kan det spare nogen for lidt tid.
\n<\/a><\/noindex>
\nLad os gennemg\u00e5 trinene i instruktionen (spoiler \u2013 alt gik glimrende indtil 5. trin):<\/p>\n

1. Installation af Windows Subsystem for Linux for senere installation af Linux-distributioner<\/b><\/p>\n

Dette er den mindste af problemerne, som man siger: <\/p>\n

Kontrolpanel \u2192 Programmer \u2192 Programmer og funktioner \u2192 T\u00e6nd og sluk Windows-komponenter \u2192 Windows Subsystem for Linux<\/p>\n

2. Installation af en Linux-distribution efter eget valg<\/b><\/p>\n

Jeg brugte appen Ubuntu<\/a><\/noindex>.<\/p>\n

3. Installation og opdatering af pip <\/b><\/p>\n

sudo apt-get install software-properties-common\nsudo apt-add-repository universe\nsudo apt-get update\nsudo apt-get install python-pip<\/code><\/pre>\n
\n4. Installation af Apache Airflow<\/b><\/p>\n
export SLUGIFY_USES_TEXT_UNIDECODE=yes\npip install apache-airflow<\/code><\/pre>\n
\n5. Initialisering af databasen<\/b><\/p>\n
Og netop her begyndte mine sm\u00e5 vanskeligheder. Instruktionen kr\u00e6ver, at man indtaster kommandoen airflow initdb<\/code> og g\u00e5r videre til n\u00e6ste trin. Men jeg fik hele tiden svaret airflow: kommando ikke fundet<\/code>. Det er logisk at antage, at der opstod problemer under installationen af Apache Airflow, og at de n\u00f8dvendige filer simpelthen ikke er til stede. Da jeg havde sikret mig, at alt var, hvor det skulle v\u00e6re, besluttede jeg mig for at pr\u00f8ve at angive den fulde sti til filen airflow (det skulle se s\u00e5dan ud: fuld\/stier\/til\/filer\/airflow initdb<\/code>). Men miraklet skete ikke, og svaret var det samme airflow: kommando ikke fundet<\/code>. Jeg pr\u00f8vede at bruge den relative sti til filen (.\/.local\/bin\/airflow initdb<\/code>), hvilket f\u00f8rte til, at der opstod en ny fejl ModuleNotFoundError: Ingen modul ved navn 'json'<\/code>, som kan overvindes ved at opdatere biblioteket werkzeug<\/i> (i mit tilf\u00e6lde til version 0.15.4):<\/p>\n
pip install werkzeug==0.15.4<\/code><\/pre>\n
\nDu kan l\u00e6se mere om werkzeug her<\/a><\/noindex>. <\/p>\n
Efter denne enkle manipulation blev kommandoen .\/.local\/bin\/airflow initdb<\/code> udf\u00f8rt med succes. <\/p>\n
6. Start af Airflow-serveren<\/b><\/p>\n
Problemerne med at tilg\u00e5 airflow var dog ikke ovre endnu. K\u00f8rsel af kommandoen .\/.local\/bin\/airflow webserver -p 8080<\/code> f\u00f8rte til fejlen Ingen s\u00e5dan fil eller bibliotek<\/code>. En erfaren Ubuntu-bruger ville sandsynligvis straks pr\u00f8ve at overvinde s\u00e5danne problemer med at tilg\u00e5 filen ved at anvende kommandoen export PATH=$PATH:~\/.local\/bin\/<\/code> (det vil sige, ved at tilf\u00f8je kataloget \/.local\/bin\/ til den eksisterende sti til eksekverbare filer, som er defineret af variablen PATH), men dette indl\u00e6g er for dem, der prim\u00e6rt arbejder med Windows og m\u00e5ske ikke anser denne l\u00f8sning for \u00e5benlys. <\/p>\n
Efter den beskrevne manipulation blev kommandoen .\/.local\/bin\/airflow webserver -p 8080<\/code> udf\u00f8rt med succes.<\/p>\n
7. URL: localhost<\/noindex>:8080\/<\/b><\/p>\n
Hvis alt gik godt i de tidligere trin, er du klar til at erobre analytiske h\u00f8jder.<\/p>\n
Jeg h\u00e5ber, at den beskrevede oplevelse med installation af Apache Airflow p\u00e5 Windows 10 vil v\u00e6re nyttig for begyndere og fremskynde deres indtr\u00e6den i universet af moderne analysetools. <\/p>\n
N\u00e6ste gang ville jeg gerne forts\u00e6tte emnet og fort\u00e6lle om erfaringen med at bruge Apache Airflow inden for analyse af brugeradf\u00e6rd i mobilapplikationer.
\n
Kilde: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"
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