questions/big-data-hadoop
You can choose your mapper output key ...READ MORE
You can do it using the following ...READ MORE
If you don't want to turn off ...READ MORE
The first column is denoted by $0, ...READ MORE
Step 1: Go to My Lab and ...READ MORE
InputSplits are created by logical division of ...READ MORE
In order to merge two or more ...READ MORE
Below are the services Running in Hadoop Hdfs yarn mapreduce ozzie zookeeper hive hue hbase impala flume sqoop spark Depending ...READ MORE
You can use the SUBSTR() in hive ...READ MORE
from pyspark.sql.functions import monotonically_increasing_id df.withColumn("id", monotonically_increasing_id()).show() Verify the second ...READ MORE
When you are loading two different files, ...READ MORE
So, we will execute the below command, new_A_2 ...READ MORE
How to exclude tables in sqoop if ...READ MORE
Suppose I have the below parquet file ...READ MORE
Hey, This is because the user directory not ...READ MORE
For integrating Hadoop with CSV, we can use ...READ MORE
Well, there are two kinds of partitions: 1. ...READ MORE
You can use the following code: A = ...READ MORE
FileInputFormat : Base class for all file-based InputFormats Other ...READ MORE
Yes, it is possible to do so ...READ MORE
Hey, The error you got because you might ...READ MORE
You can use the import-all-tables option and along with ...READ MORE
It's because that is the syntax. This ...READ MORE
Each file Schema = 150bytes Block schema ...READ MORE
Yes, InputFormatClass and OutputFormatClass are independent of ...READ MORE
You are trying to execute the sqoop ...READ MORE
You can use this: import org.apache.spark.sql.functions.struct val df = ...READ MORE
The SET LOCATION command does not change ...READ MORE
Hello, To write scripts with HBase shell it includes non-interactive mode, ...READ MORE
It is straight forward and you can achieve ...READ MORE
Hey, The Master and RegionServer both participate in ...READ MORE
The main difference between Oozie and Nifi ...READ MORE
The command hdfs dfs -put command is used to ...READ MORE
You can convert the pdf files with ...READ MORE
FileSystem needs only one configuration key to successfully ...READ MORE
job.setOutputValueClass will set the types expected as ...READ MORE
i need to write some mapreduce pattern ...READ MORE
I think you have upgraded CDH. This ...READ MORE
Hi, You can load data from flat files ...READ MORE
Each reducer uses an OutputFormat to write ...READ MORE
Hi, The user of the MapReduce framework needs ...READ MORE
If you are trying to sort first ...READ MORE
No, the data node does not select ...READ MORE
By default, only one reducer is assigned ...READ MORE
Hey, Hive query is received from UI or ...READ MORE
You can use the split function along ...READ MORE
Hey, Although, we can create two types of ...READ MORE
First, need to create a directory in Hadoop: $ ...READ MORE
About integrating RDBMS with Hadoop, you can ...READ MORE
You need to add your current user ...READ MORE
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