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New posts in mapreduce
Hadoop - increasing map tasks in xml doesn't increases map tasks when runs
Aug 01, 2022
hadoop
mapreduce
How do I learn to use Java commons-collections?
May 25, 2022
java
mapreduce
apache-commons-collection
What is the correct way to use oozie to write to multiple output streams for a mapreduce job?
Nov 25, 2018
java
hadoop
mapreduce
oozie
How to schedule Hadoop Map tasks in multi-core 8 node cluster?
Nov 21, 2022
hadoop
mapreduce
cloudera
Is Wikipedia's explanation of Map Reduce's reduce incorrect?
Nov 09, 2022
mongodb
mapreduce
Difference between Threading and Map-Reduce processing?
Feb 11, 2021
multithreading
mapreduce
Hadoop and different Format of inputs like Image, Audio, Video
Apr 08, 2022
java
linux
image
hadoop
mapreduce
Apache Pig: unable to run my own pig.jar and pig-withouthadoop.jar
Mar 14, 2022
java
hadoop
mapreduce
apache-pig
storing images in HBASE for processing and quick access
Sep 24, 2021
image
hadoop
mapreduce
hbase
random-access
Pig java.lang.NoSuchFieldException: jobsInProgress exception
Jul 30, 2020
hadoop
mapreduce
apache-pig
How to read a record that is split into multiple lines and also how to handle broken records during input split
Feb 14, 2021
hadoop
mapreduce
input-split
Reduce is called several times with the same key in mongodb map-reduce
Aug 25, 2022
mongodb
mapreduce
Difference between combiner and in-mapper combiner in mapreduce?
Dec 22, 2016
hadoop
mapreduce
combiners
How can we pass List<Text> as Mapper output?
Sep 24, 2022
hadoop
mapreduce
Efficiency of flatMap vs map followed by reduce in Spark
Oct 15, 2022
scala
apache-spark
mapreduce
rdd
flatmap
Querying Hbase efficiently
Sep 17, 2022
java
hadoop
mapreduce
hbase
hadoop2
aggregate Dataframe pyspark
Feb 20, 2022
python
apache-spark
mapreduce
group-by
MapReduce job hangs, waiting for AM container to be allocated
Aug 13, 2022
hadoop
mapreduce
hadoop-yarn
Renaming Part Files in Hadoop Map Reduce
Mar 29, 2022
java
hadoop
mapreduce
Type mismatch in key from map: expected org.apache.hadoop.io.Text, recieved org.apache.hadoop.io.LongWritable
Mar 22, 2022
java
hadoop
mapreduce
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