map - Hadoop InputFormat for Excel -
- Get link
- X
- Other Apps
I need to create a map-less program that reads Excel files from HDFS and does some analysis on it . From there, store the output in the format of Excel file. I know that TextInputFormat is used to read a .txt file from HDFS, but what method or input format should I use?
Popular posts from this blog
python - how we can use ajax() in views.py in django? -
I have a little code here. Could you please tell me what this code really does? please. Here in the AJAX call: $ .ajax ({url: "{% url} upload_document '%}", type: "POST", data : {Csrfmiddletoken: document.getElementsByName ('csrfmiddletoken') [0] Price, Title: document.getElementById ('title'). Value, // document: document: document.getElementById ('document'),}, datatype: "Jason", success: function (feedback) {if (feedback == "true") {// success} other {// attachment errors}}}); How AJAX works in the Django and how we can see the AJAX request. Here is the idea of my thoughts def upload_document (requested): Print request. POTT print request FILES if request.is_ajax (): If request.method == 'POST': form = UploadForm (request.POST, request.FILES, user = request.user) if form.is_valid (): Form.save () return HTTPPCS (SimpleJason Dumps ('True'), Mime Type = 'App / Jason') Other:...
java - Instances of classes -
Does a non-static method make an example of that class in which it is declared? Why does this code work? import java.awt. *; Public Class Main Frame {PUBLIC MAN () {// SUPER KEYWORDS Do not Need a Class Shelter? Super ("My Frames"); Supersatsis (200,100); } Public static zero main (string [] args) {new main (); }} If a non-static method creates an example of a class, the next code should work ... import.java.applet . *; Public class extends the main applet (public zero print) (System.out.println ("Hi");} Public Zero Init () {this.print ();}} A non-static method can only be accessed In the context of an example Pre-existing . Public square fu {public static zero someStaticMethod () {/ * ... *}} Some nonstaticmethod (public) from zero. . *}} elsewhere: Foo.someStaticMethod (); // it's Foo.Som ENonStaticMethod () works; // This foo foo = new foo () does not work; foo.someNonStaticMethod (); // But it within a non-static method You ...
c - Performance of System() -
After the function in C, for the system (), it affects the hardware counters, so how do you order that The example displayed for the example you are trying to view lets the IM use the display API (PAPI) and the program is a precompiled matrix multiplication application. PAPI_start_counters (); System ("./matmul"); PAPI_read_counters (); // Print the values PAPI_stop_counters (); I'm clearly missing a bit, but I'm trying to figure out what it is possible to say, counter receiving a program im running Is through use. With my tests I will get wild numbers like below, they are clearly wrong, just want to find out why total bicycle =========== 140733358872510 instructions complete =========== 4203968 Floating Point Instructions =========== Floating Point Operations =========== 4,196,867 Weight ======= ==== 140733358872804 store ======= ==== 4204037 branches taken =========== 15774436 System () Normally it is a very slow function, on Linux, it is ...
Comments
Post a Comment