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Who invented Blockchain technology  July 8, 2018 at 8:10 AM
Hi, I am wondering to find more about the Blockchain technology and the person put their mind in inventing Blockchain. Who invented blockchain technology? In want to know when it was invented and why? Thank ... View Questions/Answers

What is blockchain technology  July 8, 2018 at 7:52 AM
Hi, People are taking about Blockchain these days and there is many jobs in the IT field. So, I am wondering what is this? What is blockchain technology? Thanks ... View Questions/Answers

kibana specify elasticsearch url  July 5, 2018 at 7:59 AM
Hi, I have to connect to elasticsearch running on remote host from kibana application. What configuration changes needs to be done in kibana for this? How we can modify kibana configuration to specify elasticsearch url? Thanks ... View Questions/Answers

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apache commons io 2.6 maven  July 3, 2018 at 6:09 AM
Hi, What is maven dependency of apache commons io 2.6 maven? Which code i should add in pom.xml to add apache commons io 2.6 in maven project? Thanks ... View Questions/Answers

apache commons fileutils maven dependency  July 2, 2018 at 11:24 PM
Hi, I am writing a program to for directory listing and want to add apache commons fileutils maven dependency. What is the maven code for this? Which code to add into pom.xml file to get apache commons fileutils maven dependency in my project. Thanks ... View Questions/Answers

Unable to locate package openjdk-11-jdk  June 29, 2018 at 11:45 PM
Hi, I want to install open jdk 11 on ubuntu with the following command: sudo apt install openjdk-11-jdk But its throwing error: [email protected]:~$ sudo apt install openjdk-11-jdk Reading package lists... Done Building dependency tree ... View Questions/Answers

Library corruption error during apt-get update  June 26, 2018 at 12:08 PM
Hi, I am running: sudo apt-get update but it is throwing error Library corruption error during apt-get update. Full error list: [email protected]:~$ sudo apt-get update [sudo] password for deepak: Sorry, try again. [sudo] passw... View Questions/Answers

How specify the version of python that spark-submit uses  June 25, 2018 at 7:30 AM
Hi, I have installed python 3.7 and want to use with spark. How specify the version of python that spark-submit uses? Thanks ... View Questions/Answers

restart elasticsearch service centos  June 25, 2018 at 3:47 AM
Hi I have elasticsearch server on Centos. How to restart elasticsearch service centos? Thanks ... View Questions/Answers

installing jdk 10 on windows 10  June 19, 2018 at 4:07 AM
Hi, I have checked and found that Java 10 is released. Now looking for more information on JDK 10. I want to installing jdk 10 on windows 10. How to do it and configure it? Thanks ... View Questions/Answers

How important is Java Spring Framework currently  June 14, 2018 at 2:49 PM
Hi, Actually I want to know the importance of Spring Framework and todays context. How important is Java Spring Framework currently? How a beginner in Spring Framework learn this framework? Thanks ... View Questions/Answers

How can one master the Spring framework in Java  June 14, 2018 at 12:03 PM
Hi, How one can learn and master famous spring framework in Java? How can one master the Spring framework in Java? Almost all the IT Jobs involving Java required Spring framework in one or other way. I have seen many jobs on the Job website and most of them are looking for program... View Questions/Answers

What is the best site for advanced Java programming  June 14, 2018 at 11:32 AM
Hi, I am beginner in Java programming language. I have learned Java programming from a book and its difficult to type all the code of book and try. Now I am looking for best Java tutorials in Advanced Java programming so that learn it easily. It will be good if we have some ready ... View Questions/Answers

mapr db truncate table  June 12, 2018 at 4:58 AM
Hi, I want to truncate mapr db table. I have a JSON table with many records and application is in testing stage. How to truncate mapr JSON table? Thanks ... View Questions/Answers

change kerberos principal password  June 11, 2018 at 4:08 AM
How to change the password of a pricipal? My principal is abcd/mydomain.com What is the command of it? Thanks ... View Questions/Answers

How is Python and machine learning related to the IoT  June 3, 2018 at 6:32 PM
Hi, I just wanted to know the connection between Python, machine learning and IoT. How is Python and machine learning related to the IoT? Thanks ... View Questions/Answers

how to convert json into dataframe in scala  May 23, 2018 at 4:33 AM
Hi, I have a JSON string and I want to convert it to dataframe in scala. how to convert json into dataframe in scala? I am reading some program and creating one line json and now I want to convert it to dataframe in scala for spark. Thanks ... View Questions/Answers

How to check if ZooKeeper is running or up from command prompt  May 23, 2018 at 12:28 AM
Hi, I want to see if the ZooKeeper is running or not on my Hadoop cluster. How to check if ZooKeeper is running or up from command prompt? Thanks ... View Questions/Answers

what is etc profile file in Linux  May 21, 2018 at 12:29 AM
Hi, I want to know more about the /etc/profile file in Linux. What is the use of /etc/profile file? Thanks ... View Questions/Answers

rename index in elasticsearch  May 18, 2018 at 1:17 AM
How to rename index in elasticsearch? I have an index with millions of records in it. I want to rename this index to another name. There is some business requirement to rename it. What is the command to rename index in elasticsearch? I am using Elasticsearch 6.1. Thanks... View Questions/Answers

how to get number of shards in elasticsearch  May 17, 2018 at 1:36 AM
Hi, I have elastic search server and I want to get the details of shards for each index. how to get number of shards in elasticsearch? Thanks ... View Questions/Answers

list of all months between two dates in java  May 16, 2018 at 6:43 AM
Hi, I want to get list of all months with year between two dates. How to do this in Java? Thanks ... View Questions/Answers

hadoop_home or hadoop.home.dir are not set eclipse  May 16, 2018 at 12:50 AM
Hi, I am running an application in Eclipse. I have set HADOOP_HOME correctly in Ubuntu and can see the values with the command: echo $HADOOP_HOME But eclipse is not detection it and throwing following error: ... View Questions/Answers

google gson maven dependency 2.8.2  May 12, 2018 at 9:42 AM
Hi, I want to use the latest google gson api in my project. What is google gson maven dependency for version 2.8.2? ... View Questions/Answers

java programming  May 11, 2018 at 3:25 PM
Companies and people often buy and sell stocks. Often they buy the same stock for different prices at different times. Say a person owns 1000 shares a certain stock (such as Checkpoint) she may have bought the stock in amounts of 100 shares over 10 different times with 10 different prices. ... View Questions/Answers

Java Hashmap  May 7, 2018 at 12:44 PM
Java code for below: Any help is appriciated A text file consisting of output of (vid, cid) pairs is given. Suppose that vid is a 6-digit integer and cid is a 3-digit integer. Implement the following methods for a class named eC. You must use the Hash table AD... View Questions/Answers

Add jars to a Spark Job spark-submit  May 1, 2018 at 4:34 AM
Add jars to a Spark Job spark-submit I want to submit some dependency jars along with the code jar file with spark-submit. How to add jar to the Spark Job Submit process? Thanks ... View Questions/Answers

Hibernate ORM 5.2 release date  April 30, 2018 at 12:52 PM
Hi, I was out of touch from Hibernate programming for last 2 years. Earlier I was working on Hibernate 3 and now new project came in my company. I have to work on this new project which is using latest version of Hibenate. Which is the latest version of Hibernate? What is ... View Questions/Answers

What is a Big Data Hadoop consultant  April 30, 2018 at 10:28 AM
Hi, What is a Big Data Hadoop consultant? What are there role? Thanks ... View Questions/Answers

Will Spark overtake Hadoop  April 30, 2018 at 10:06 AM
Hi, Will Spark overtake Hadoop? Spark is very popular and much faster then MapReduce. So, can it replace Hadoop? Thanks ... View Questions/Answers

What is the equivalent of MapReduce reducer in spark  April 30, 2018 at 9:58 AM
Hi, What to use for MapReduce in Spark? What is the equivalent of MapReduce reducer in spark? Thanks ... View Questions/Answers

What makes Spark faster than MapReduce?  April 30, 2018 at 9:49 AM
Hi, What makes Spark faster than MapReduce? Thanks ... View Questions/Answers

What is RDD in spark  April 30, 2018 at 9:13 AM
Hi, I am new to Spark programming and when I started learning i encountered RDD first. What is RDD in spark? Thanks ... View Questions/Answers

is rdd mutable  April 30, 2018 at 9:09 AM
Hi, I am new to Spark programming and I am not able to see any way to modify the data of RDD. is rdd mutable? Thanks ... View Questions/Answers

how to create rdd in pyspark  April 30, 2018 at 9:03 AM
Hi, I am have to create an RDD from a String in PySpark. How to do this? How to create rdd in pyspark? ... View Questions/Answers

hibernate 5.3 0 maven dependency  April 30, 2018 at 1:39 AM
Hi, What is dependency of hibernate 5.3 0 which i can add to pom.xml file? Thanks ... View Questions/Answers

how to install anaconda in ubuntu for all users  April 28, 2018 at 11:38 PM
Hi, I want to install anaconda for all users in Ubuntu. how to install anaconda in ubuntu for all users? Thanks ... View Questions/Answers

how to install anaconda in ubuntu  April 28, 2018 at 11:03 PM
Hi, I have to use Ubuntu to python programming and decided to use Anaconda distribution of Python. I want to now install Anaconda Python on Ubuntu and trying to find steps to do it. how to install anaconda in ubuntu? Thanks ... View Questions/Answers

spark-core_2.11 maven dependency  April 27, 2018 at 10:26 AM
Hi, I want to create Spark Application and need maven dependency to add into pom.xml file of the project. Where can I find spark-core_2.11 maven dependency jar files? What is the way to add spark-core_2.11 maven dependency in my project? Thanks ... View Questions/Answers

how to modify hosts file in ubuntu  April 26, 2018 at 5:44 AM
Hi, I want to add few host names with ip address in Ubuntu. how to modify hosts file in ubuntu? Thanks ... View Questions/Answers

yarn.scheduler.minimum-allocation-mb  April 26, 2018 at 4:39 AM
Hi, I am submitting an Java Spark job on yarn cluster. It is throwing error: Can't allocate enough ram as it outside max allowed. yarn.scheduler.minimum-allocation-mb How to solve this? Thanks ... View Questions/Answers

float to np.floating is deprecated  April 12, 2018 at 11:38 PM
Hi, I running one program and there is warning message "float to np.floating is deprecated". Error is: C:\Users\test\Anaconda3\envs\tensorflow\lib\site-packages\h5py\__init__.py:36: FutureWarning: Conversion of the second argument of issubdtype from `... View Questions/Answers

How to install TensorFlow TF-Hub  April 12, 2018 at 11:21 PM
Hi, How I can install TensofFlow TF-Hub? Thanks ... View Questions/Answers

How to upgrade TensorFlow to 1.7  April 12, 2018 at 11:17 PM
Hi, I have old version of TensoFlow installed on my computer. I want to upgrade it to latest version of TensorFlow. How to upgrade TensorFlow to 1.7? Thanks ... View Questions/Answers

ModuleNotFoundError: No module named 'tensorflow_hub'  April 12, 2018 at 11:11 PM
Hi, While running a program its not finding module: ModuleNotFoundError: No module named 'tensorflow_hub' Error is: Traceback (most recent call last): File "tfhub.py", line 2, in <module> import tensorflow_hub as hub ModuleNotFoundError: N... View Questions/Answers

JAVA PROGRAM  April 12, 2018 at 5:06 AM
To write a java prograam to create a employee class, full time employee class, part time employee class using inheritance ... View Questions/Answers

How do I install a .deb file via the command line?  April 8, 2018 at 9:41 AM
How do I install a .deb file via the command line? ... View Questions/Answers

How do I tar a directory without retaining the directory structure?  April 8, 2018 at 5:21 AM
Hi, I want to create tar file without retaining the directory permission. How to do this? Thanks ... View Questions/Answers

How to show only hidden files in Terminal?  March 31, 2018 at 12:49 AM
Hi, I want to list all the hidden files in a directory. How to show only hidden files in Terminal? ... View Questions/Answers

How would I get this linked list in alphabetical order?  March 25, 2018 at 1:01 PM
import java.io.*; import java.util.Scanner; public class LinkedList2 { public LinkedListNode head; String fname; public static void main(String[] args) throws FileNotFoundException{ Scanner scan = new Scanner(new File("Names.txt")); LinkedLi... View Questions/Answers

selenium webdriver get page html  March 25, 2018 at 5:48 AM
Hi, I am working on a project to test web application. There is requirement to get the full content of page as HMTL. How to get page html in selenium webdriver? Thanks ... View Questions/Answers

single ton  March 24, 2018 at 12:35 PM
we can call non static method from singleton class. ... View Questions/Answers

selenium maven dependency 3.7.1  March 23, 2018 at 10:52 AM
Hi, I am searching for selenium maven dependency 3.7.1 to add in my project. What is selenium maven dependency 3.7.1 code to add in pom.xml file? Thanks ... View Questions/Answers

Allowing only localhost in Elasticsearch  March 19, 2018 at 7:39 AM
Hi, I have installed Elasticserch on the production platform. Now I want to enable its access only from localhost. How I can allow Elasticseach from localhost only? Thanks ... View Questions/Answers

Enabling remote access in Elasticsearch  March 19, 2018 at 7:32 AM
Hi, I have installed Elasticsearch on my server. Now I want to access it from another computer. It not accessible from other computer on port 9200. Its only accessible at http://localhost:9200/ How I can enable its access from other computers in the network? Thanks... View Questions/Answers

What are characteristics of IoT?  March 18, 2018 at 3:24 AM
Hi, I am new to IoT and want to know more about it. Where it is used and what are the characteristics of Internet of Things? What are career opportunities in IoT? Thanks ... View Questions/Answers

Features and components of Hadoop  March 18, 2018 at 12:58 AM
Hi Guys, I am learning Hadoop and just started with the Big Data basic details. I Found Hadoop is most popular Big Data platform and I want to learn Hadoop in very detail. So, I want to know the Features and components of Hadoop to learn each component with example codes. ... View Questions/Answers

Putty Equivalent for Mac OS X  March 18, 2018 at 12:21 AM
Hi, I was using putty to connect to Linux machine from Windows. I am switching to mac and want to know which tool I can use in Mac to connect Linux system. What is Putty Equivalent for Mac OS X? I am not able to find any putty for mac what to do? Thanks ... View Questions/Answers

How to check CentOS version via command line?  March 17, 2018 at 11:33 PM
Hi, I have a linux machine and i don't know the version of the CentOS operating system installed on it. I can login to the console using ssh and want to know the version of CentOS system installed on it. How to check CentOS version via command line? Thanks ... View Questions/Answers

What are Internet of things?  March 17, 2018 at 11:11 PM
Hi, What is are Internet of Things and why its so popular these days? Is there any job opportunities in Internet of Things? Thanks ... View Questions/Answers

How to resume scp with partially copied files  March 17, 2018 at 4:29 AM
Hi, I am copying big file using scp. It is stalled while copying. How i can resume it. How to resume scp with partially copied files? Thanks ... View Questions/Answers

check CentOS version via command line  March 17, 2018 at 4:05 AM
Hi, How to see the version of centos installed from command line? Thanks ... View Questions/Answers

solr 7.2.1 maven dependency  March 14, 2018 at 1:56 AM
Hi, What is solr 7.2.1 maven dependency? Thanks ... View Questions/Answers

NameError: name 'SparkConf' is not defined  March 13, 2018 at 7:29 AM
Hi, What is solution of the error: NameError: name 'SparkConf' is not defined Thanks ... View Questions/Answers

Do I learn ML and IoT at the same time  March 11, 2018 at 11:42 AM
Hi, I want to make better career in Big Data, Machine learning and IoT. Just wondering which things to learn first? Do I learn ML and IoT at the same time? Thanks ... View Questions/Answers

python replace newline with space  March 1, 2018 at 11:24 PM
Hi, I want to replace newline character \n With space in python. How to replace newline with space in python? Thanks ... View Questions/Answers

Library corruption error during apt-get update  February 24, 2018 at 10:21 PM
Hi, I am installing Jdk on Ubuntu 16.04. When i run the command: sudo apt-get update it throws following error: `appstreamcli': double free or corruption (fasttop): 0x0000000002465020 *** ... View Questions/Answers

ModuleNotFoundError: No module named 'matplotlib' Windows  February 22, 2018 at 7:31 PM
Hi, I am running some program in TensorFlow and it gives following error: (tensorflow) C:\Deepak\tf\2_BasicModels>python linear_regression.py Traceback (most recent call last): File "linear_regression.py", line 12, in <module> import matp... View Questions/Answers

E: Unable to locate package oracle-java8-installer  February 22, 2018 at 7:26 PM
Hi, I am trying to install with following command on Ubuntu 17.04: sudo apt-get install oracle-java8-installer It gives following error: E: Unable to locate package oracle-java8-installer How t... View Questions/Answers

how to select the row value that was retrived from the database ?  February 21, 2018 at 2:04 AM
I am getting the data's from the table that was stored in database. Now in the page in which i am getting all the data from the database has an another select option as : Approve, Disapprove & Pending. Now if i select any option as for example Approve then it must select all the data in the r... View Questions/Answers

modulenotfounderror no module named 'mysqldb' python 3  February 20, 2018 at 10:39 AM
Hi, I have a python program and it is connecting to MySQL database. But it throws following error: modulenotfounderror no module named 'mysqldb' python 3 How to resolve this? Thanks ... View Questions/Answers

Is there any better way to refer html elements by class names?  February 15, 2018 at 8:24 AM
Hi, Are there any other best practices to get an HTML element by class name? let left = document.getElementsByClassName("pro-left"); for (let i = 0; i < right.length; i++) { left[i].addEventListener("click", function () { console.log("Clicked... View Questions/Answers

Full-text Search  February 15, 2018 at 5:30 AM
I need a java source code to impliment a full-text search in java web application using servlets with firebird database. ... View Questions/Answers

What is the data flow in Hadoop?  February 14, 2018 at 11:13 AM
Hi, Data flows in a Hadoop system. What is the data flow in Hadoop? Thanks ... View Questions/Answers

Which is the best online course for learning Hadoop?  February 14, 2018 at 3:41 AM
Hi, After 4 years of working with the Java and Hibernate technologies I am searching for Job. I found that there are lots of opportunities for the Big Data professionals. I want to learn Big Data and Hadoop quickly. Where to get started with it? Which is the best online co... View Questions/Answers

Best Apache Spark Online Training  February 13, 2018 at 9:45 PM
Hi, Which is the Best Apache Spark Online Training institute for taking online training? Thanks ... View Questions/Answers

Which is the best institute on Hadoop training in India?  February 12, 2018 at 8:48 PM
Hi, I am working in PHP and Java technologies. Mainly developing web application for my company. My company is getting a Big Data and Hadoop project. So, I have to learn Hadoop fast from any of the online training institute. I can also learn but its taking a lot of time in learnin... View Questions/Answers

What is the best online training institute for Hadoop?  February 12, 2018 at 6:26 PM
Hi, Looking towards learning Hadoop and Big Data quickly. Is the any good institute which gives online training? What is the best online training institute for Hadoop? Thanks ... View Questions/Answers

I want to learn Java programming language online  February 12, 2018 at 10:01 AM
Hi, I have decided to make career in IT industry. I want to learn Java programming language online from best tutorials online. What are the best Java tutorials for beginners to learn it online from beginning? Thanks ... View Questions/Answers

I want to learn Hadoop from scratch  February 11, 2018 at 7:11 PM
Hi, I want to learn Hadoop from scratch online with best tutorials on Internet. Let me tell about my experience. I have 2 years of experience in Java, JDBC and Web application development. I have worked with the MySQL database to create dynamic web applications for companies. Now ... View Questions/Answers

Which is the best website to learn hadoop for free?  February 11, 2018 at 6:44 PM
Hi, I am beginners in Hadoop and want to learn it fast but without paying anything. I want good tutorial website url for learning Haddop for free. Which is the best website to learn hadoop for free? I want the source code of example as well for Hadoop tutorials. Th... View Questions/Answers

What is the best place to learn Hadoop online?  February 11, 2018 at 4:39 PM
Hello, I want to master Hadoop. What is the best place to learn Hadoop online? Thanks ... View Questions/Answers

which is good hadoop file system commands tutorial  February 11, 2018 at 10:51 AM
Hi, I am learning hadoop file system commands and trying to find all commands of hadoop with examples. which is good hadoop file system tutorial? Thanks ... View Questions/Answers

What does hadoop fsck command do?  February 11, 2018 at 10:36 AM
Hi, What is fsck command? What does hadoop fsck command do? Thanks ... View Questions/Answers

Which is the best portal for Hadoop  February 10, 2018 at 8:05 PM
Hi, I am searching for the best tutorials to learn Hadoop and all the technologies of Hadoop in less time. Where to start learning Hadoop? Which is the best portal for Hadoop? Thanks ... View Questions/Answers

How does Hadoop distributed file system work?  February 9, 2018 at 10:39 PM
Hi, I want to understand HDFS in Hadoop. How does Hadoop distributed file system work? Thanks ... View Questions/Answers

How to convert date to string in Java in yyyy-mm-dd format  February 9, 2018 at 8:32 PM
Hi, I need simple Java program in which we have a date object and it should be converted to String in yyyy-mm-dd format. How to convert date to string in Java in yyyy-mm-dd format? Thanks ... View Questions/Answers

Kafka Big Data tutorial  February 9, 2018 at 8:17 PM
Hi, I want to learn Kafka and use it one of Big Data project. Which is the tutorials of Kafka Big Data? Thanks ... View Questions/Answers

what is key in kafka?  February 9, 2018 at 8:06 PM
Hi, I was searching for Big Data jobs on internet and almost all the Big Data Job recruiters are asking for Kafka skills. what is key in kafka? How to learn Kafka? Thanks ... View Questions/Answers

How to convert date to string in Java?  February 9, 2018 at 7:57 PM
Hello developers, I have java.util.Date object and it has to be converted to date format. How to convert date to string in Java? Thanks ... View Questions/Answers

Are J2EE and Java Advanced the same?  February 9, 2018 at 10:55 AM
Hi, I am checking J2EE and Advanced Java. Are J2EE and Java Advanced the same? Thanks ... View Questions/Answers

Which is the best online course for learning Hadoop?  February 8, 2018 at 5:44 PM
Hi, I want to learn Big Data and searching for the best course. Which is the best online course for learning Hadoop? Thanks ... View Questions/Answers

How do I learn data analysis with Python?  February 8, 2018 at 10:35 AM
Hi, How do I learn data analysis with Python? Which are other programming technologies for data analytics? Thanks ... View Questions/Answers

What is data analysis, and how does it work?  February 8, 2018 at 9:30 AM
Hi, I want to make career in Big Data and want to learn it. What is data analysis, and how does it work? Thanks ... View Questions/Answers

What are some good PHP tutorials?  February 7, 2018 at 11:17 AM
Hi, Hello, is it good to start learning PHP to make quick career in programming. what are the steps to learn PHP? What are some good PHP tutorials? Thanks ... View Questions/Answers

java.io.FileNotFoundException  February 7, 2018 at 10:46 AM
Hi, What is java.io.FileNotFoundException error? How to resolve the error java.io.FileNotFoundException? Thanks ... View Questions/Answers

Which website provides proper tutorials?  February 7, 2018 at 10:04 AM
Hi, I want to learn programming languages and searching for the websites. Which are the websites to learn programming languages? Which website provides proper tutorials? Thanks ... View Questions/Answers

What do we need to study to become a data scientist?  February 5, 2018 at 10:54 AM
Hi, I want to make career in Data Science as Data scientist. What do we need to study to become a data scientist? Thanks ... View Questions/Answers

Resource 'corpora/wordnet' not found.  February 4, 2018 at 3:19 AM
Hi, I am working on NLTK project for Big Data and while running a program it throws error: Resource 'corpora/wordnet' not found. Complete error log: Resource 'corpora/wordnet' not found. Please use the NLTK Downloader to obtain the resource: >... View Questions/Answers

Resource 'taggers/averaged_perceptron_tagger/averaged_perceptron _tagger.pickle' not found  February 4, 2018 at 3:12 AM
Hi, I am making nltk program and it throws following error: Resource 'taggers/averagedperceptrontagger/averaged_perceptron _tagger.pickle' not found Detail error log: Resource 'taggers/averaged_perceptron_tagger/averaged_perceptron ... View Questions/Answers

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