Is it possible 开发者_StackOverflow中文版to use Hive for querying Lucene index which is distributed over Hadoop???Hadapt is a startup whose software bridges Hadoop with a SQL front-end (like Hive) and
I would like to upload a directory from an EMR local file system to s3 as a zipped file. Is there b开发者_运维问答e a better way to approach this than the method I\'m currently using?
What开发者_运维百科 happens when the datanode the map/reduce is using goes down? Shouldnt the job be redirected to another datanode? How should my code handle this exceptional condition?If datanode go
As we need to read in bunch of files to mapper, in non-Hadoop environment, I use os.walk(dir) and file=open(path, mode) to read in
I have a hive table like CREATE TABLE beacons ( foo string, bar string, foonotbar string ) COMMENT \"Digest of daily beacons, by day\"
I install the cloudera CDH3 on my machine. Then I try开发者_如何学C to use eclipse plugin (JIRA MAPREDUCE-1280) to do some MR tasks. However, it seems like the plugin not work with CDH3 for some reaso
I have two data sets one is historical quote data and other is historical trade data. Data is splitted per symbol per day basis. My question is how to load two files of same symbol in a same map funct
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We would like to implement Hadoop on our system to improve its performance. The process works like this:
This question already has answers here: Closed 12 years ago. Possible Duplicate: instant searching in petabyte of data…
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