June 2016
Intermediate to advanced
498 pages
10h 25m
German
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31Verfügbarkeit von Webservern prüfen
Wenn man eine größere Anzahl Webserver in Betrieb hat, testet man regelmäßig die Erreichbarkeit und alarmiert bei Fehlern, um dies von einem Menschen prüfen zu lassen. Zum Test, ob alle Webserver erreichbar sind, können Funktionen aus dem Modul urllib (Kapitel 22.2 auf Seite 258) genutzt werden. Anhand des Statuscodes oder eines Fehlers kann dann eine Entscheidung über das weitere Vorgehen getroffen werden. Bei vielen Webservern lohnt sich eine parallele Versendung der Anfragen. Dafür eignet sich das Modul threading (Kapitel 23.1 auf Seite 291).
31.1Einen Webrequest stellen
Das Programm wird in kleinen Schritten aufgebaut. Zunächst wird nur ein Webrequest an einen Rechner gestellt. Die URL wird als Zeichenkette ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.