top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration Why to Join

Facebook Login
Site Registration

Can technology in Database engines like MySQL, Oracle be changed so they work like Hadoop?

+2 votes
Can technology in Database engines like MySQL, Oracle be changed so they work like Hadoop?
posted May 27, 2016 by Abhay

Looking for an answer?  Promote on:
Facebook Share Button Twitter Share Button LinkedIn Share Button
Distributed databases have been around for a while. What exactly is the problem you are trying to solve?

Similar Questions
+2 votes

I am running hadoop-2.4.0 cluster. Each datanode has 10 disks, directories for 10 disks are specified in

A few days ago, I modified of a datanode () to reduce disks. so two disks were excluded from, after the datanode was restarted, I expected that the namenode would update block locations. In other words, I thought the namenode should remove from block locations associated with blocks which were stored on excluded disks, but the namenode didnt update the block locations...

In my understanding, datanode send a block report to the namenode when datanode start so the namenode should update block locations immediately.

Is a bug? Could anyone please explain?

+3 votes

I am looking to the Yarn mapreduce internals to try to understand how reduce tasks know which partition of the map output they should read. Even, when they re-execute after a crash?

I am also looking to the mapreduce source code. Is there any class that I should look to try to understand this question?

+2 votes

Is there any library or a plug-in to enable the temporal upward compatibility? I want to keep the past records whenever a current record changes.

+1 vote

Can we use Hadoop as a substitue for ETL tools like Informatica for ETL processes ?

Contact Us
+91 9880187415
#280, 3rd floor, 5th Main
6th Sector, HSR Layout
Karnataka INDIA.