Hadoop MapReduce Projects

The term MapReduce refers to the standard distributed programming model in which Hadoop clusters are organized with enormous databases/servers to ensure flexibility throughout the network. MapReduce Projects is the central processing unit of the Apache Hadoop. It is the big data application tool to retrieve essential data from massive unstructured datasets.

Here, you may have a question about where to use MapReduce Programs. Don’t get worried about your questions. We are going to demonstrate to you the utilities of the MapReduce with nut and bolt points in the immediate passage for ease of your understanding. Are you ready to get into the important features indulged in MapReduce? Come let’s have them.

“From this article, you will be educated in the areas of MapReduce projects which are frequently done by our peer groups” 

Examples of MapReduce Process

  • Inverted Index
    • Look up the value of the text processing words or terms
  • Word Count
    • Pointing out the No.of words consisted in the entire text
  • Sort
    • Filtering up of the input files

The above listed are some of the instances of the MapReduce used areas. MapReduce applications are having their important characteristics which are eminent. Our researchers in the concern are wanted to reveal the key features indulged in the MapReduce software for your better understanding of it. Shall we get into that? Let us try to understand them. 

Top 6 Interesting Hadoop Mapreduce Projects

What are the key Features of MapReduce?

  • Trustworthiness of the MapReduce is offered by implementing the hypothetical tasks
  • Centralized MapReduce clusters for adapting the diverse intensive behaviors of the input and out (I/O)
  • Minimizing the datacenter asset consumption which lies in the various tasks and jobs
  • Copying the data of the various devices is the key feature of MapReduce for tolerating the faults

These are the key features or characteristics of MapReduce. We hope that you are getting the points. Here, you need to additionally know about the working module that runs behind the MapReduce program. As it is very important in MapReduce projects execution noteworthy points are stated in the entire article.

MapReduce works according to the 2 important parts as Map and Reduce. The map is the important factor to map out the exact data from the massive data whereas reduce is the factor in which datasets get compressed and interchanged. Let’s have further explanations in the immediate passage. 

What is MapReduce and how it works?

  • Input
    • Insert the dataset into HDFS as blocks and it turns into nodes
    • Duplication of the nodes takes place while the system flops
    • Blocks and nodes are traced by the name nodes
    • Job tracker gets the job submission & its entire information
    • Origination of the job, scheduling of the job by having interaction with the task tracker
    • In mapping, value pairs are presented and the blocks are analyzed by the mappers
    • Mappers sort out the value pairs
    • Outputs are transmitted to the reducers and then it gets shuffled in a unique format
    • Assimilation of the key-value pairs is done to get the final result
    • Finally, value pairs are warehoused in the HDFS and their outcomes are imitated to have an understanding

As you know that MapReduce is the application where the big data dealings are getting done. However, every technology is subject to its own merits and demerits. Likewise, MapReduce Software has some limitations. But we can eradicate them following some of the techniques and tools implementations. When doing MapReduce projects, you need to have a crystal clear understanding of every edge comprised in that technology. If you are a beginner in this technology then you can have our assistance to get done your best project in the industry which stands out from others. We can make use of the techniques to face the complexity but they get fails as stated in the following section. Now we can have the limitations section. 

Limitations of Current MapReduce Schemes

  • Name nodes cause the congestion in the network by duplicating the various datasets
  • Distributed servers result in the unattainability of the data
  • Remotely accessed data causes the intensification of the latencies
  • An increase in the number of devices decreases the MapReduce performance

The aforementioned are some of the limitations of the MapReduce schemes. By Mastering MapReduce fields you can overcome these challenges by experimenting with the crucial edges. In the following passage, we are going to show you how to evaluate the runtime of MapReduce with clear notes. This is one of the important sections hence having more concentration in this section would benefit you. Let us try to understand them. The particular size of the runtime of the job is evaluated. We can have a further explanation in the subsequent passage. 

How to Estimate the Runtime of MapReduce? 

The accumulation of the total map, total reduced jobs, and the total reduction is equal to the total job. 

  • Runtime of the map stage is get done by the accretion of the total merge, spill, collect, map and read
  • Runtime of the reduce stage gets done by the accumulation of the write, reduce & shuffle

This is how the 3 phases get evaluated in MapReduce. On the other hand, several parameters are affecting the runtime of MapReduce. The parameters may be in the form of software or hardware. The parameters are categorized in 3. Let us try to understand the further explanations in the following phase. 

Parameters Affecting the Runtime in MapReduce

  • Hardware Parameters
  • Node Parameters
  • Properties of Application

Let us have the key factors indulged in the mentioned parameter for ease of your understanding.

  • Application Parameters 
    • Data Size of the Inputs
    • Data Size of the Samples
    • Sample’s Map Run Time
    • Sample’s Map Run Time Reduction
    • Map Stage of the Output-Input Proportions
    • Reduce Stage of the Output-Input Proportions
  • Hardware Parameters
  • Hard Disk Writing Speed: 60 MB/s
  • Hard Disk Reading Speed: 120 MB/s
  • RAM Writing Speed: 5000 MB/s
  • RAM Reading Speed: 6000 MB/s
  • No of Core Processors: 3
  • Power of Processor: 40 GHz
  • Noof Containers: 96
  • No of Nodes: 13
  • Bandwidth:100 MB/s
  • Data Nodes Parameters
    • Max Heap Size of Reduce Task: 1024 MB
      • These node parameters are used in the tasks to reduce
    • reduce.shuffle.input.buffer.percent:0.70%
      • 70 is the proportion of memory to warehouse the map outcomes which is obtained from the max heap size
    • reduce.shuffle.merge.percent: 0.66%
      • It is all about the memory allocation to store the map outcomes
    • reduce.shuffle.parallel copies: 5
      • Reduce imitates the data and shuffles the data by parallel transferals
    • map.sort.spill.percent: 0.80%
      • This is all about spilling out of the data in the circumstances
    • task.io.sort.factor: 10
      • This signifies the open files in the network by merging up the streams
    • task.io.sort.mb: 100
      • This is the buffer memory for file sorting up in MBs
    • blocksize: 128 MB
      • Block and splits size
    • sort.record.percent: 0.005%
      • This stores the metadata (data about data) of map outputs

The above listed are the MapReduce parameters that affect the runtime. On the other hand, MapReduce concepts and programs can be scripted in java, C++, C, Perl, and Ruby. So far, it is known that java is the only language for the MapReduce programs but it is also compatible with the other languages mentioned before. In the subsequent passage, we deliberately mentioned to you the key functionalities of the MapReduce job/task for the ease of your understanding. 

How to Implement MapReduce?

public static void main(String[] args) throws Exception {

JobConf newobject = new JobConf(ExceptionCount.class);







newobject setInputFormat(TextInputFormat.class);


FileInputFormat.setInputPaths(newobject, new Path(args[0]));

FileOutputFormat.setOutputPath(newobject, new Path(args[1]));



The above mentioned are the built-in functions that state the significance of MapReduce parameters such as job, task, I/O (input/output), I/O file paths and types, reduce and combined classes, name of the class, and map. Execution of the mapper interface and their MapReduce extensions are done by the mapper classes. In the subsequent passage, we can see the tools used in MapReduce for the ease of your understanding. 

MapReduce Tools Hadoop 

  • Riak
  • Infinispan
  • Apache Hadoop
  • Apache Couch DB
  • Hive

The above listed are some of the important tools used in the MapReduce concepts. For instance, Hive is one of the innovative and simplified tools used in MapReduce with effectively structured query languages. We know that you need an illustration of the configuration parameters for one among them. As Hive is the essential tool, we are going to demonstrate to you the parameters involved in the Hive configuration. 

Configuration Parameters of MapReduce

  • JDK: Version 1.8.1
  • Hadoop: Version 2.9.1
  • Band Width: 100 Mbps
  • HDD: 500 GB
  • Operating System: Ubuntu 17.04
  • Memory: 4 GB
  • Processor: Intel Core i3 3420 2*2 Cores 3.40 GHz

The above listed are the configuration parameters that need to be present in every deployment of MapReduce. This is going to help you while your configurations. Our researchers felt that adding up of latest research ideas in Hadoop MapReduce will sound good in this area. Yes, the upcoming section is going to let you know about the same for your better perspectives. 

Latest Research Ideas in Hadoop MapReduce Projects

  • Parallel Data Processing in Scale-Out Structure
  • Cloud Computing Analysis & Data Editions
  • Data Processing & Storage Databases
  • Data Confidentiality and Security Policy
  • Network Security
  • Energy Preservation Evaluations
  • Big Data Mining Methods
  • HDFS Data Analysis
  • Segmentation of Nodes and Analysis
  • Job Scheduling and Management

The aforementioned are the latest research ideas in Hadoop. Apart from this, we are having plenty of incredible research ideas. You might get wonder about our unique perspective in the MapReduce projects each and everyone approaches. Because our researcher habitually skills them up in the emerging technologies which are in trend. According to the trend, they are offering the best guidance to the students and the scholars. At last, they wanted to let you know about the algorithms that are used in MapReduce.

Hadoop Mapreduce Projects

 What are all the Algorithms used by MapReduce?

  • Dynamic Priority
  • Johnson’s Algorithm
  • Knapsack Algorithm
  • Greedy Algorithm
  • Dynamic Programming Algorithm
  • Fair Scheduler
  • FCFS Algorithm
  • Random Forest Decision Tree Classifier
  • Complementary Naive Bayes Classifier
  • Parallel Frequent Pattern Mining
  • Singular Value Decomposition
  • Latent Dirichlet Allocation
  • Dirichlet Process Clustering
  • Mean Shift Clustering
  • Fuzzy K-Means & K-Means Clustering
  • Collaborative Filtering
  • Bulk-Synchronous-Parallel Algorithm

On the whole, we have discussed all the required phases involved in MapReduce. We are experts in projects and research assistance. We are not subject to these services but also masters in thesis writing, journal papers, and so on. Generally, we are the company with massive researchers and experts to deliver the projects and researchers within the time given. If you are interested in doing MapReduce projects then you can approach us. We are always there to assist you!!!!


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