Apache Error 1066
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Error 1066: Unable To Open Iterator For Alias Records
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Error 1066 Unable To Open Iterator For Alias C
helping each other. Join them; it only takes a minute: Sign up Pig ERROR 1066: Unable to open iterator for alias test up vote 1 down vote favorite I get: org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for
Pigunit Unable To Open Iterator For Alias
test when I have the code: my_file = LOAD '$my_records_file' USING PigStorage('\t') AS (field0:chararray, field1:int); test = FILTER my_file BY field0 != null; Why am I getting this error? hadoop mapreduce apache-pig share|improve this question asked Jul 1 '14 at 17:03 user3662937 130116 For people who found this post when looking for ERROR 1066: Unable to open iterator for alias here is a generic solution. –Dennis Jaheruddin Dec 28 '15 at 15:28 add a org.apache.pig.backend.hadoop.executionengine.mapreducelayer.mapreducelauncher - failed! comment| 3 Answers 3 active oldest votes up vote 0 down vote accepted I think you want to filter rows that have null values ? the Syntax is field0 IS NOT NULL. my_file = LOAD '$my_records_file' USING PigStorage('\t') AS (field0:chararray, field1:int); test = FILTER my_file BY field0 IS NOT NULL; but if you want to filter rows that have a value equals to null, the code is : my_file = LOAD '$my_records_file' USING PigStorage('\t') AS (field0:chararray, field1:int); test = FILTER my_file BY field0 !='null'; share|improve this answer answered Jul 2 '14 at 9:56 user3387616 613 Yes, I wanted to filter rows that have null values. Thank you for the correction! –user3662937 Jul 2 '14 at 16:36 add a comment| up vote 1 down vote One of the other reasons to get this error is that running Pig through local Mode or HDFS mode. Apart from this error there is a message on our console, failed to read data from the path. If this is the case then check first you are working with Pig in Local mode or HDFS mode. In local mode PIG will take input data from LFS (Local file system). However, in HDFS it will take input data from the HDFS directory. Backend error message during job submission org.apache.pig.backend.executionengine.ExecException: ERROR 2118: Input path does not exist: Pig Stack Trace: ERROR 1066:
here for a quick overview of the failed to read data from pig site Help Center Detailed answers to any questions you might have caused by java io ioexception couldn t retrieve job Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company http://stackoverflow.com/questions/24515745/pig-error-1066-unable-to-open-iterator-for-alias-test Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just http://stackoverflow.com/questions/20317337/pig-error-1066-unable-to-open-iterator-for-alias-tweetsreduced like you, helping each other. Join them; it only takes a minute: Sign up Pig ERROR 1066: Unable to open iterator for alias tweetsReduced up vote 0 down vote favorite I'm running Pig in local mode and I'm getting this error. The script that I'm executing is: REGISTER '/users/level3/1103816b/Desktop/HotOrNot_repo/DataMining/Pig/piggybank.jar'; venues = LOAD '/users/level3/1103816b/Desktop/HotOrNot_repo/DataMining/Pig/venues_extended.csv' USING org.apache.pig.piggybank.storage.CSVLoader(); venuesReduced = foreach venues generate venues::Name; DUMP tweetsReduced; The error log: 2013-12-01 21:06:59,270 [main] ERROR org.apache.pig.tools.grunt.Grunt - org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias venuesReduced at org.apache.pig.PigServer.openIterator(PigServer.java:880) at org.apache.pig.tools.grunt.GruntParser.processDump(GruntParser.java:774) at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:372) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:198) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:173) at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:84) at org.apache.pig.Main.run(Main.java:607) at org.apache.pig.Main.main(Main.java:156) Caused by: org.apache.pig.PigException: ERROR 1002: Unable to store alias venuesReduced at org.ap
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this http://stackoverflow.com/questions/15658795/piglatin-local-mode-error-1066-unable-to-open-iterator-for-alias-b site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x https://samebug.io/exceptions/111924/org.apache.pig.impl.logicalLayer.FrontendException/error-1066-unable-to-open-iterator-for Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up PigLatin - unable to Local Mode - ERROR 1066: Unable to open iterator for alias B up vote 0 down vote favorite I am experimenting with Pig UDFs. I am able to get simple UDF like Upper Case working for me. so I was trying to write my own UDF. I want to process each line of an input file which contains 3 integers. If the 3 integers satisfy unable to open the criteria for sides of a right angle triangle, then the hypotenuse is returned else null is returned. But I am getting following error - ERROR 1066: Unable to open iterator for alias B Here is the Pig Script Code - -- rat.pig - A Pig script to test right angle triangle REGISTER /Users/admin/Programming/PigUDF/bin/myudfs/myudfs.jar; A = LOAD '/Users/admin/Programming/pigdata/triangle.csv' AS (sides: tuple(side_0:int, side_1:int, side_2:int)); B = FILTER A BY (myudfs.RAT(A.sides)!= 0); DUMP B; The UDF is like package myudfs; import java.io.IOException; import org.apache.pig.EvalFunc; import org.apache.pig.data.Tuple; public class RAT extends EvalFunc
help others org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias limited Stack Overflow | Ivo Van de Grift | 3 years ago 0 mark RE: strange problem with count and distinct subscribers pig-user | 3 years ago | Noam Lavie org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias datesGroupsAmount find similars org.apache.pig Java RT Hadoop 0 0 mark RE: strange problem with count and distinct subscribers pig-user | 3 years ago | Noam Lavie org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias datesGroupsAmount find similars org.apache.pig Java RT Hadoop 0 0 mark Re: strange problem with count and distinct subscribers pig-user | 3 years ago | Cheolsoo Park org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias datesGroupsAmount find similars org.apache.pig Java RT Hadoop 0 Speed up your debug routine! Automated exception search integrated into your IDE Test Samebug Integration for IntelliJ IDEA 0 mark Re: strange problem with count and distinct subscribers pig-user | 3 years ago | Cheolsoo Park org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias datesGroupsAmount find similars org.apache.pig Java RT Hadoop 0 0 mark ERROR 1066: Unable to open iterator for alias in pig Stack Overflow | 4 years ago | Uselesssss org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias B find similars org.apache.pig Java RT 0 See more Not finding the right solution? Take a tour to get the most out of Samebug. Tired of useless tips? Automated exception search integrated into your IDE Test Samebug Integration for IntelliJ IDEA Root Cause Analysis java.io.IOException Couldn't retrieve job. at org.apache.pig.PigServer.store() 0 similar org.apache.pig Main.main org.apache.pig.PigServer.store(PigServer.java:902) org.apache.pig.Pi