I am trying to build an adjacency list out of a corpus. I am thinking of using Map-Reduce because in-memory solutions have proven to be extremely expensive. The sequence of jobs that I think will work
After installed Hive by the instruction on Hive apache wiki step by step, I invoked hive shell and typed \"CREATE TABLE pokes (foo INT, bar STRING);\", then it comes following error, log is also inclu
Wh开发者_JAVA百科at is the maximum number of files and directories allowed in a HDFS (hadoop) directory?In modern Apache Hadoop versions, various HDFS limits are controlled by configuration properties
After reading this and this paper, I decide开发者_JAVA技巧d I want to implement a distributed volume rendering setup for large datasets on MapReduce as my undergraduate thesis work. Is Hadoop a reason
We are overhauling our product by completely moving from Microsoft and .NET family to open source (well one of the reasons is cost cutting and exponential increase in data).
I have a question about configuring Map/Side inner join for multiple mappers in Hadoop. Suppose I have two very large data sets A and B, I use the same partition and sort algorithm to split them into
We have currently one running project which uses RDBMS database( with lots of tables and stored procedures for manipulating data). The current flow is like : the data access layer will call stored pro
I am attempting to run a single-node instance of Hadoop on Amazon Web Services using Apache Whirr. I set whirr.instance-te开发者_开发问答mplates equal to 1 jt+nn+dn+tt. The instance starts up fine. I
So, it is easy enough to handle external jars when using hadoop straight up. You have -libjars option that will do this for you. The question is how do you do this with EMR. There must be an easy way
I\'m currently learning hadoop and I\'m trying to setup a single node test as defined in http://hadoop.apache.org/common/docs/current/single_node_setup.html
加载中,请稍侯......