Most viewed questions in Edureka Community

0 votes
11 answers

What is the default Namenode port of HDFS. Is it 8020 or 9000 or 50070?

8020/9000 hadoop namenode metadata port number. or ...READ MORE

Dec 31, 2018 in Big Data Hadoop by SM
11,594 views
+2 votes
1 answer

I want the console.log output from Chrome. I'm working with selenium on Python

So this is how you do it ...READ MORE

May 3, 2018 in Selenium by sniffy_god
• 780 points
11,200 views
0 votes
7 answers

How to print the contents of RDD in Apache Spark?

Simple and easy: line.foreach(println) READ MORE

Dec 10, 2018 in Apache Spark by Kuber
11,044 views
+5 votes
13 answers

AWS VPC - What is the difference between Internet Gateway & NAT

Internet Gateway An Internet Gateway is a logical connection ...READ MORE

Apr 24, 2018 in AWS by Flying geek
• 3,160 points
10,519 views
+1 vote
1 answer

How to download a file at a specified location through python and selenium using Chrome driver

Create a profile for chrome and define ...READ MORE

Jul 11, 2018 in Selenium by Samarpit
• 5,130 points
10,504 views
+2 votes
10 answers

Is there any difference between “hdfs dfs” and “hadoop fs” shell commands?

Yes, there's a difference between hadoop fs and ...READ MORE

Dec 7, 2018 in Big Data Hadoop by Kunal
10,446 views
0 votes
11 answers

“pip install unroll”: “python setup.py egg_info” failed with error code 1

rm -rf node_modules READ MORE

Jun 27 in Python by anonymous
10,242 views
0 votes
1 answer

HttpServletRequest get JSON POST data

Normally you can GET and POST parameters ...READ MORE

Nov 29, 2018 in Java by Sushmita
• 6,880 points
10,196 views
0 votes
5 answers

groupByKey vs reduceByKey in Apache Spark.

Below Images are self explainatry for reducebykey ...READ MORE

Apr 22 in Apache Spark by Gunjan Kumar
10,095 views
0 votes
3 answers

How to specify "ENTER" button functionality in Selenium WebDriver code?

using OpenQA.Selenium.Interactions; Actions builder = new Actions(driver); ...READ MORE

Feb 12 in Selenium by anonymous
10,035 views
0 votes
3 answers

Selenium Webdriver + Java - Eclipse: java.lang.NoClassDefFoundError

I also faced this issue first time, ...READ MORE

Aug 28 in Selenium by Shraddha
9,782 views
0 votes
6 answers

docker: executable file not found in $PATH

file not found in $PATH READ MORE

May 9 in Docker by anonymous
9,737 views
+1 vote
10 answers

How to make mock to void methods with mockito

You can use partial mocking to serve ...READ MORE

Dec 7, 2018 in Java by nitesh
9,718 views
0 votes
5 answers

What is the HDFS command to list all the files in HDFS according to the timestamp?

You can try filter using value in ...READ MORE

Dec 7, 2018 in Big Data Hadoop by Lenny
9,664 views
0 votes
1 answer

Boto3 - python script to view all directories and files

There are no folders, only S3 object ...READ MORE

Sep 14, 2018 in AWS by Priyaj
• 56,900 points
9,593 views
0 votes
1 answer

Check that the element is clickable or not in Selenium WebDriver

Use Selenium Waits: WebDriverWait ...READ MORE

Jun 12, 2018 in Selenium by Meci Matt
• 9,420 points
9,590 views
0 votes
13 answers

What is the difference between Hadoop/HDFS & HBase?

HDFS is a distributed file system whereas ...READ MORE

Apr 26 in Big Data Hadoop by Arihar
• 160 points
9,586 views
+5 votes
3 answers

How to execute a python file with few arguments in java?

You can use Java Runtime.exec() to run python script, ...READ MORE

Mar 27, 2018 in Java by DragonLord999
• 8,380 points

edited Nov 6, 2018 by Omkar 9,071 views
+1 vote
4 answers

How to run Jenkins jobs on multiple slaves with a single job configuration?

use multijob plugin READ MORE

Jan 3 in Jenkins by Ajit Jadhav
9,013 views
0 votes
1 answer

How to find the nth prime number in Java?

Here is the code to find nth ...READ MORE

Mar 4 in Java by Priyaj
• 56,900 points
8,916 views
0 votes
11 answers

How to check size of HDFS directory?

It is the same syntax. Use the ...READ MORE

Jun 6 in Big Data Hadoop by Sowmya
8,840 views
–1 vote
1 answer

How to read a csv file stored in Amazon S3 using csv.DictReader

The code would be something like this: import ...READ MORE

Oct 25, 2018 in AWS by Archana
• 5,560 points
8,738 views
0 votes
2 answers

How to sum a variable by group in R?

You can also try this way, x_new = ...READ MORE

Jul 31 in Data Analytics by Cherukuri
• 27,960 points
8,733 views
0 votes
6 answers

How to use COUNTIF in Tableau?

I'll give you a brief idea on ...READ MORE

Dec 10, 2018 in Tableau by Haider
8,673 views
0 votes
2 answers

Extracting data from a JSON file in Python

Here is what i found and was ...READ MORE

Nov 27, 2018 in Python by Rupali
8,561 views
0 votes
1 answer

Not able to open a new URL in a new tab in Selenium

There is a bug in ChromeDriver that ...READ MORE

May 21, 2018 in Selenium by Meci Matt
• 9,420 points
8,543 views
0 votes
2 answers

Resolving PKIX path building failed Error?

You need to add the certificate for App2 to ...READ MORE

Sep 24, 2018 in Java by Sushmita
• 6,880 points
8,528 views
0 votes
1 answer

How to delete a file from S3 bucket using boto3?

You can delete the file from S3 ...READ MORE

Nov 30, 2018 in AWS by Aniket
8,427 views
0 votes
2 answers

Power BI Dax Multiple IF AND Statements

HI I have Column Patient 12 13 14 15 18 IN Patient=12, 13 Out ...READ MORE

May 22 in Power BI by VNK
8,220 views
+5 votes
5 answers

Jenkins properties file

Follow these steps: 1. Install ‘EnvInject’ plug-in in the Jenkins ...READ MORE

Aug 2, 2018 in Jenkins by lina
• 8,110 points
8,196 views
+1 vote
2 answers

Is it possible to scroll down in a webpage using selenium webdriver programmed on python?

I using next code for facebook for ...READ MORE

May 16 in Selenium by mslavikas@gmail.com
8,185 views
0 votes
9 answers

Is there any way to check which Hadoop daemons are running?

use jps command, It will show all the running ...READ MORE

Dec 27, 2018 in Big Data Hadoop by Rakesh
• 160 points
8,060 views
0 votes
2 answers

Unable to Click on an Element in Selenium (Python) even after finding it.

Here, I give you working script which ...READ MORE

Sep 19, 2018 in Selenium by Priyaj
• 56,900 points
8,037 views
0 votes
1 answer

How do you add a background thread to flask in Python?

The example below creates a background thread ...READ MORE

Nov 19, 2018 in Python by Nymeria
• 3,520 points
7,855 views
+1 vote
3 answers

What do you mean by python scripting? What is a script and a module in python?

A module is a file containing a ...READ MORE

Jun 17 in Python by Zain Abbas
7,785 views
0 votes
1 answer

How to scroll the Page up or down in Selenium WebDriver? (using java)

Its pretty simple. Check out the below ...READ MORE

Apr 5, 2018 in Selenium by nsv999
• 5,090 points
7,764 views
0 votes
1 answer

Fluent wait example with code

When we try to test the presence ...READ MORE

Jun 5, 2018 in Selenium by walter 123
• 240 points
7,723 views
+1 vote
1 answer

How to upload a file in S3 bucket using boto3 in python

You can use method of creating object ...READ MORE

Nov 30, 2018 in AWS by Aniket
7,695 views
0 votes
2 answers

“Cannot find symbol” compilation error

The "Cannot find symbol" errors generally occur when you ...READ MORE

Apr 3 in Java by patricblues
• 140 points
7,677 views
0 votes
1 answer

How to groupBy/count then filter on count in Scala

I think the exception is caused because ...READ MORE

Apr 19, 2018 in Big Data Hadoop by kurt_cobain
• 9,240 points
7,666 views
0 votes
2 answers

Sorting rows in descending order in Spark SQL

df.orderBy(org.apache.spark.sql.functions.col("columnname").desc) READ MORE

Jan 8 in Apache Spark by Ram Reddymasi
7,653 views
0 votes
1 answer

How can I check for NaN in Python?

math.isnan() Checks if the float x is a ...READ MORE

Aug 16, 2018 in Python by Priyaj
• 56,900 points
7,616 views
0 votes
4 answers

How to remove NA values with dplyr::filter()

Can we create a alist as below ...READ MORE

Aug 5 in Data Analytics by anonymous
7,578 views
0 votes
1 answer

TestNG error:- Cannot find class in classpath

The issue is because the project directory ...READ MORE

Mar 23, 2018 in Selenium by nsv999
• 5,090 points
7,536 views
+2 votes
1 answer

How can we handle authentication popup in Selenium WebDriver using Java

The Alert Method, authenticateUsing() lets us skip ...READ MORE

Apr 18, 2018 in Selenium by king_kenny
• 3,650 points
7,497 views
0 votes
5 answers

What is the default Jenkins password?

Change the shell to /bin/bash instead of bin/false ...READ MORE

Apr 22 in Jenkins by Vinod
7,481 views
+2 votes
10 answers

Difference between s3n, s3a and s3?

S3 Native FileSystem (URI scheme: s3n) A ...READ MORE

Oct 25, 2018 in AWS by Rishab rohan
7,448 views
+4 votes
7 answers

How to set the pipeline name and description for a Jenkinsfile?

You can rename pipeline jobs in jenkins ...READ MORE

Oct 11, 2018 in Jenkins by Hannah
• 15,220 points
7,445 views
0 votes
1 answer

Distinct count filtered by condition using Power BI Dax

Try this, it should work: DistinctCountActiveMonths = CALCULATE( ...READ MORE

Oct 5, 2018 in Power BI by Kalgi
• 41,470 points
7,397 views
+2 votes
10 answers

Querying DynamoDB by date

You can use the "day" portion in ...READ MORE

Oct 25, 2018 in Cloud Computing by abc
7,350 views