Read sequence file from hdfs

Here is a simple function, again taken straight from my Hadoop test helper library. Share Tweet Post. Data Nerd. Lucky husband and father. Data Warehousing and Hadoop Survey ». I maintain an open source SQL editor and database manager with a focus on usability. You can also write a sequence file in Hadoop using MapReduce job. That is helpful when you have a big file and you want to take advantage of parallel processing.

In the MapReduce job for writing a SequenceFile more important thing is the job settings given for output and compression. If you want to read a sequence file using MapReduce job that code will be very similar to how writing a sequence file is done.

One main change is the input and output formats. If something is missing or you have something to share about the topic please write a comment.

JavaRDD; import org. List ;. SparkConf ;. JavaRDD ;. JavaSparkContext ;. Tutorials - Big Data. JavaCallError "Error calling Java: java. The text was updated successfully, but these errors were encountered:.

It's almost correct! The mistake is that SparkContext. Sorry, something went wrong. Thank you, dfdx! It works now. Are there any functions in Spark. Here is the code. ArrayStoreException: org. Text at scala. JavaCallError "Error calling Java: org. SparkException: Job aborted due to stage failure: Task 4 in stage 0.