Questions & Answers

  • Pass mapped data to multiple reduce functions in Hadoop

    I currently have a large datasest that I need to analyze with multiple reduce functions. What I would like to do is read the dataset only once and then pass the mapped data to multiple reduce functions. Is there a way I can do this in Hadoop? Thank you!

    ITKE1,005,470 pointsBadges:
  • AIX LPAR CPU cycle usage

    Hello, How can I come to know that other Dev LPAR usages my PERF CPU cycles in uncrap mode. Are there any parameters to be monitored in such cases? Consider here: Dev LPAR is in Crap mode and it reaches max CPU resource usage, then it started using PERF CPU cycles. Kindly some one help with...

    sekharsyy5 pointsBadges:
  • Sorting of students strength on one form in Microsoft Access

    I have a table named Students with the following fields and data ID Level Session Gender Regular/Plus Shift Program Section: 13 INTERMEDIATE 2013-2015 MALE REGULAR MORNING FSC ENG FSC B-4 14 INTERMEDIATE 2013-2015 MALE REGULAR MORNING FSC ENG FSC B-3 15 INTERMEDIATE 2013-2015 MALE REGULAR MORNING...

    MUHAMMADYOUSAF10 pointsBadges:
  • Share Outlook Distribution List

    How can I share an Outlook distribution list with an AOL user?

    J9Larkin5 pointsBadges:
  • Issues deleting records in SQL database

    I'm having issues deleting records in a SQL database. What should I do?

    rockquery45 pointsBadges:
  • Live Expert Chat with Alcatel Lucent Tomorrow 11/30 (sponsored)

    Tomorrow, Tuesday 11/30, is our next live Expert Chat with Alcatel Lucent at 10am EDT. Transitioning to LTE: Business and Technical Considerations will help you consider what needs to be done as you create and implement a highly adaptive business model with customer-focused strategic planning,...

    ITKE1,005,470 pointsBadges:
  • Live Chat with Alcatel-Lucent on April 7 (Sponsored)

    On April 7, attend our Live Chat with Alcatel-Lucent to discuss real-world examples of service providers implementing transformation projects to become more innovative, competitive, simpler, faster and more efficient; while improving customer quality of experience and laying a solid foundation for...

    ITKE1,005,470 pointsBadges:
  • Getting warning message when starting Hadoop cluster

    I just started a Hadoop cluster but I keep getting this warning message: $HADOOP_HOME is deprecated. But when I add export HADOOP_HOME_WARN_SUPPRESS="TRUE" into hadoop-env.sh, I don't get the message anymore (when I start the cluster). When I run this: hadoop dfsadmin -report, I see the message...

    ITKE1,005,470 pointsBadges:
  • Load small random sample of a large CSV file into R data frame

    We have a CSV file that needs to be processed but doesn't fit into the memory. Is there a way we can read 20K+ random lines of it to do basic stats on our selected date frame?

    ITKE1,005,470 pointsBadges:
  • Should I learn MongoDB or CouchDB for NoSQL?

    I'm pretty new to everything NoSQL related but I've heard a ton of things on MongoDB and CouchDB but I'm not sure of the differences. Can anyone help me? Which one do you recommend as a first step to learning NoSQL? Thank you very much!

    ITKE1,005,470 pointsBadges:
  • How to delete all data in MongoDB

    I'm currently working in development on MongoDB. Every once in a while, I need to delete pretty much everything in that database. Does anyone know if there's a single line of code to do this? I'm going through every single collection right now and it's taking way too long.

    ITKE1,005,470 pointsBadges:
  • How to write a C++ program in a short way

    #include<iostream>,#include<fstream>,#include<vector>,#include<string>,#include<algorithm> using namespace std; int main() { vector<vector >Container1;// prototype of the functions (Declaring functions) vectorContainer2;//memory with no limit it holds a...

    chiku141050 pointsBadges:
  • Not able to login to AS/400

    A user is not able to connect to AS/400. His ID and password are correct, the account not disabled, the error is firewall. Please help me how to resolve it.

    Rajasekhar151,420 pointsBadges:
  • How to install Mahout on Hadoop cluster

    We recently created a Hadoop cluster (that has 3 slaves and 1 master using Ambari server/Hortonworks). Now we're trying to install mahout 0.9 in the master machine so we can run mahout jobs in the cluster. Is there a way to do that?

    ITKE1,005,470 pointsBadges:
  • Outlook 2007: Trying to receive too many emails

    My email account is downloading previously read emails and is doing it numerous times. What should I do?

    aidyone5 pointsBadges:
  • Lost Email from Outlook 2007 Using Windows 7

    I am using Outlook 2007 on Windows 7 platform. I leave Outlook open on my desktop nearly 24-7. Last night there was an automatic Windows update that took place. When I got up and looked at my inbox I found that there was only one single unopened email. None of my previously opened emails were...

    JackGray5 pointsBadges:
  • HR Approval of ZL hours

    Hi. I have the requirement that manager shall approve ZL hours via MSS after time evaluation. Any other ways than getting the ZL hours into it 2010 for MSS approval? -and best way of getting the ZL hours into it 2010? - can it be done via rptime00? Br Søren

    ssoerens25 pointsBadges:
  • What is the best way to implement the security testing on mobile applications?

    I am new to software testing field, and in these starting days of my carrier I got the task to implement the security testing on mobile application i.e., (Android and iOS both). Please tell me the best and the easiest way to implement security testing. Thanks in advance.

    Jitenderbhardwaj5 pointsBadges:
  • Add domain admins to remote desktop user group

    How to add domain admins to remote desktop user group using command line?

    dinesh1435 pointsBadges:
  • Insert a function in Microsoft Excel

    In cell f15, insert a function that will automatically display the word discontinue if the value of cell d15 if less than 1,500 or the text no change if the value in the cell d15 is greater 15000.

    senem25 pointsBadges:

Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to:

To follow this tag...

There was an error processing your information. Please try again later.

Thanks! We'll email you when relevant content is added and updated.

Following