Did anyone has met the problem before? This is error log: Protocol org.apache.hadoop.mapred.J开发者_JS百科obSubmissionProtocol version mismatch. (client = 20, server = 21)
Imagine I have the following table available to me: A: { x: int, y: int, z: int, ...99 other columns... }
I\'m us开发者_开发知识库ing Amazon\'s elastic map reduce. I have log files that look something like this
I\'m working on a JsonStorage for Pig. Everything works fine, but at least I need to get the names of the fields (i.e. crdate, name, positions) from the pig schema.
I am trying to run the pig tutorial scripts in Ubuntu for two days, however I can not manage to make pig connect to hadoop file system. It is still saying: \" Connecting to hadoop file system at: file
My hive query has multiple outer joins and takes very long to execute. I was wondering if it would make sense to break it into multiple smaller queries and use pi开发者_C百科g to work the transformati
I\'m working on a Pig script (my first) that loads a large text file. For each record in that text file, the content of one field needs to be sent off to a RESTful service for processing. Nothing need
I get multiple small files into my input dir开发者_运维问答ectory which I want to merge into a single file without using the local file system or writing mapreds. Is there a way I could do it using ha
I have simple text file containing two columns, both integers 1 5 1 12 2 5 2 341 2 12 and so on.. I need to group the dataset by second value,
Using apache pig and the text hahahah.my brother just didnt do anything wrong. He cheated on a test? n开发者_Go百科o way!
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