Jare : Hadoop streaming is 'n kragtige program wat kom met Hadoop distribution.The basiese konsep van Hadoop raamwerk is om die werk te verdeel,process it in parallel and then join it back to get the end result.So there are two main…
Wat is Map / Verminder in Hadoop?
Jare : Verwerking van groot hoeveelheid van die data (multi-terabyte data-stelle) is 'n groot bron van kommer in die werklike lewe projects.As die grootte van die data is aan die toeneem van dag tot dag, Aansoeke dit moeilik vind om dit te verwerk in 'n betroubare,secured and fault-tolerant way.…
Hoe om die prestasie te verhoog van 'n JMeter-toets?
'N: Volgende is sommige tegnieke wat aangewend kan word om die prestasie te verhoog van 'n JMeter-toets. 1) Verminder aantal parallelle drade :The hardware and server capability limits the number of threads which can run effectively with JMeter.If lot…
Wat is gekoppel data (Semantiese konsepte)?
Jare: Soos die naam aandui, sy 'n data wat verband hou met elke other.At bied die web bevat 'n groot hoeveelheid data wat meestal in html gehou en hulle is nie gekoppel in enige ways.So, if we want to use this…
Wat is “oneindige boek” en “Vlieggewigtitel” patroon?
Jare: The “Infinite scroll” en “Vlieggewigtitel” patterns are used to load large number of objects in web applications. Infinite scroll is also called auto paganize/endless pages. In this technique pre-fetching of contents is done and added directly to the current…
What is Memory mapping in java?
Memory mapping in java is a low level concept to make file I/O more efficiently. Generally we use stream or buffer stream to do file I/O. Although buffered stream is widely used to increase the performance of file input and…
How to create a signed applet using a self-signed certificate?
The following article will describe how to create a signed applet using a self-signed certificate? Certificate authorities typically charge a fee for the service of validating their clients’ credentials. However, for testing and demo purposes, we may create a self-signed…
Is it possible to access signed java applet code from java script function?
Onderteken applets is die geverifieerde applet om toegang te verkry tot veilige data.So onderteken applets nie die sekuriteit beperkinge wat opgelê ongetekende applets en kan buite die sekuriteit sandbox hardloop. But java script code is treated like unsigned code.So…
When should you use a Rule Engine?
'N : You need to check the following points before implementing Rule engine in your project. 'n) When business logic changes frequently: If your application has business logic which changes frequently, you should go for rule engine to maintain those…
When not to use a Rule Engine?
'N : Let me describe when not to use Rule engine. Rule engines are not for process/ work flow implementation. So if you need to implement the process or work flow of a software application then you should go for…
What is jQuery mobile framework?
Jare: jQuery mobile framework is popular because it it lightweight, “write less, do more”, JavaScript library.Some time writing java script is complex.So the purpose of jquery is to make it much easier to the developers to use javascript with the…
What is Near-Field Communication (NFC) on Android?
Jare: Near-Field communication (NFC) on Android is the next generation technology with a lot of potential in the mobile market place.When this technology is integrated with your mobile device, the mobile device will interact directly with posters, magazines, products at…
How to convert Drools decision table (excel spread sheet) to a (.DRL) file in Drools?
Let us try to create convert Drools decision table (excel spread sheet) to a (.DRL) file in Drools. The SpreadsheetCompiler class is used to convert the input XLS and CSV file to a (.DRL) lêer. The required package is “org.drools.decisiontable.SpreadsheetCompiler”.You…