hive runs slowly

2011-10-21 Thread bangbig
HI all,HIVE runs too slowly when it is doing such things(see the log below), what's the problem? because I'm joining two large table?it runs pretty fast at first. when the job finishes 95%, it begins to slow down.--INFO org.apache.hadoop.hive.ql.e

Re:Re: Hive create table

2011-05-27 Thread bangbig
Check the log file, you can find more information about the error. The log file could be found from the URL given below. At 2011-05-27 20:07:17,"jinhang du" wrote: Are there any documents to help me understand the meaning and usage of "input.regex"? I create table as your introduction. And "

how to use UDF or UDAF to implement the keywords like "CASE WHEN a THEN b..."

2011-05-17 Thread bangbig
Hi all, I find that, to implement such a statement, there are mutiple source files related. GenericUDFCase.java, GenericUDFWhen.java etc. I want to know how they are related. Could anyone give me some ideas about this? And is it possible to implement them with UDF? thanks! Best Regards, ZL.