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New posts in bigdata

Pig - ERROR 1045: AVG as multiple or none of them fit. Please use an explicit cast

hadoop mapreduce apache-pig bigdata

How do I turn a JSON file into a Java 8 Object Stream?

java arrays json java-8 bigdata

How to transform a categorical variable in Spark into a set of columns coded as {0,1}?

scala apache-spark bigdata apache-spark-mllib categorical-data

How do I increase decimal precision in Spark?

python scala apache-spark spark-dataframe bigdata

R: Is it possible to parallelize / speed-up the reading in of a 20 million plus row CSV into R?

r csv parallel-processing bigdata

Can RethinkDB handle large data sets (TB+) and serve as DB for an OLAP app?

bigdata olap rethinkdb

Does a flatMap in spark cause a shuffle?

scala apache-spark bigdata

How can I add a column with a value to a new Dataset in Spark Java?

java apache-spark dataset apache-spark-dataset bigdata

Skewed tables in Hive

hadoop hive bigdata

Is a good idea to store chat messages in a mongodb collection?

mongodb database-design chat bigdata

fitting a linear mixed model to a very large data set

r parallel-processing bigdata lme4 mixed-models

How to efficiently store and query a billion rows of sensor data

sql-server hadoop azure-table-storage azure-hdinsight bigdata

Python Pandas: Convert 2,000,000 DataFrame rows to Binary Matrix (pd.get_dummies()) without memory error?

python performance pandas numpy bigdata

How Apache Apex is different from Apache Storm?

apache-storm stream-processing apache-apex bigdata

Spark is not using all configured memory

scala apache-spark bigdata

Finding gaps in huge event streams?

sql mongodb algorithm postgresql bigdata

Order by created date In Cassandra

cassandra bigdata database
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