skewjoin bug in Hive?

2012-02-14 Thread 董友良
Hi We used hive0.7 with Hadoop 0.20.5. I have a sql like this: set mapred.reduce.tasks=256; set hive.groupby.skewindata = true; set hive.optimize.skewjoin=true; A Long sql here join 2 big table ….. I found a error as follow: Ended Job = job_201202080532_94374 java

Cannot create an instance of InputFormat class org.apache.hadoop.mapred.TextInputFormat as specified

2012-02-14 Thread Abhishek Parolkar
Hi I just installed Hive 0.8.1 with hadoop 1.0.0 when I run hive query I get "Cannot create an instance of InputFormat class org.apache.hadoop.mapred.TextInputFormat as specified" all the time Here is the full trace http://pastie.org/private/sl8xmyasi7sjkce2wfn9qq I have HADOOP_HOME , HA

Map> cann't insert two or more array values

2012-02-14 Thread hezhiqiang (Ransom)
Hi all I create a table like this: create table if not exists employee10 (Id int ,Mapdata Map>) row format delimited fields terminated by ',' collection items terminated by '@' map keys terminated by '$' stored as textfile; I can load data like this: 1,x$2 // success 2,x$1@y$3 // success 3,x$2