Hadoop Pig Error 1066 Unable To Open Iterator For Alias
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Pigunit Unable To Open Iterator For Alias
Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like error 1066 unable to open iterator for alias c you, 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
Org.apache.pig.backend.hadoop.executionengine.mapreducelayer.mapreducelauncher - Failed!
for test when I have the code: my_file = LOAD '$my_records_file' USING PigStorage('\t') AS (field0:chararray, field1:int); test = FILTER my_file BY field0 != null; Why am I getting this error? hadoop mapreduce apache-pig share|improve this question asked Jul 1 '14 at 17:03 user3662937 130116 For people who found this post when looking for ERROR 1066: Unable to open iterator for alias here is a generic solution. –Dennis Jaheruddin Dec 28 '15 at 15:28 failed to read data from pig add a comment| 3 Answers 3 active oldest votes up vote 0 down vote accepted I think you want to filter rows that have null values ? the Syntax is field0 IS NOT NULL. my_file = LOAD '$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 St
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Caused By Java.io.ioexception Job Terminated With Anomalous Status Failed
company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users caused by: java.io.ioexception: couldn't retrieve job. Badges Ask Question x 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 http://stackoverflow.com/questions/24515745/pig-error-1066-unable-to-open-iterator-for-alias-test a minute: Sign up ERROR 1066: Unable to open iterator for alias up vote 0 down vote favorite I am getting an error Unable to open iterator for alias for a simple LOAD and DUMP operation with Pig. I already took a look at the answers at: ERROR 1066: Unable to open iterator for alias - Pig But they don't help http://stackoverflow.com/questions/28122311/error-1066-unable-to-open-iterator-for-alias me. My environment: OS: Windows 7 Pig version: 0.13.0 Mode: Local It shows in the error that the exception is 'Caused by' a failure to change permission of a file in the TMP directory. But when I checked the TMP directory, there's no such file (probably it got deleted after the command is finished?). Logs below (with -v and -w options) : 'D:\H\HADOOP-2.6.0\bin\hadoop-config.cmd' is not recognized as an internal or external command, operable program or batch file. 15/01/24 09:20:22 INFO pig.ExecTypeProvider: Trying ExecType : LOCAL 15/01/24 09:20:22 INFO pig.ExecTypeProvider: Picked LOCAL as the ExecType 2015-01-24 09:20:22,909 [main] INFO org.apache.pig.Main - Apache Pig version 0.13.0 (r1606446) compiled Jun 29 2014, 02:29:34 2015-01-24 09:20:22,909 [main] INFO org.apache.pig.Main - Logging error messages to: d:\Pig\pig-0.13.0\bin\ 2015-01-24 09:20:24,267 [main] INFO org.apache.pig.impl.util.Utils - Default bootup file C:\Users\Venkat/.pigbootup not found 2015-01-24 09:20:24,438 [main] INFO org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting to hadoop file system at: file:/// 2015-01-24 09:20:26,205 [main] WARN org.apache.hadoop.util.NativeCodeLoader - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 2015-01-24 09:20:26,236 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1066: Unable to open iterator for alias a 2015-01-24 09:20:26
Data https://community.hortonworks.com/questions/14589/pigstorage-in-mapreduce-mode.html Ingestion & Streaming Data Processing Design & https://samebug.io/exceptions/111924/org.apache.pig.impl.logicalLayer.FrontendException/error-1066-unable-to-open-iterator-for Architecture Governance & Lifecycle Hadoop Core Sandbox & Learning Security Solutions All Tags All Questions All Ideas All Repos All Articles All Users All Badges Leaderboard Login Home / unable to Data Processing / 1 Question by John Smith · Feb 05 at 12:13 AM · Pig PigStorage in mapreduce mode Hi, I am trying to execute pig script in mapreduce mode, script is simple: grunt> sourceData = unable to open load 'hdfs://sandbox.hortonworks.com:8020/src/CustomerData.csv' using PigStorage(';') as (nullname: chararray,customerId: chararray,VIN: chararray,Birthdate: chararray,Mileage: chararray,Fuel_Consumption: chararray); File is stored in HDFS: hadoop fs -ls hdfs://sandbox.hortonworks.com:8020/src/CustomerData.csv -rw-r--r-- 3 hdfs hdfs 6828 2016-02-04 23:55 hdfs://sandbox.hortonworks.com:8020/src/CustomerData.csv Error that i got: Failed Jobs: JobId Alias Feature Message Outputs job_1454609613558_0003 sourceData MAP_ONLY Message: Job failed! hdfs://sandbox.hortonworks.com:8020/tmp/temp-710368608/tmp-1611282262, Input(s): Failed to read data from "hdfs://sandbox.hortonworks.com:8020/src/CustomerData.csv" Output(s): Failed to produce result in "hdfs://sandbox.hortonworks.com:8020/tmp/temp-710368608/tmp-1611282262" Pig Stack Trace---------------ERROR 1066: Unable to open iterator for alias sourceDataorg.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias sourceData at org.apache.pig.PigServer.openIterator(PigServer.java:935) at org.apache.pig.tools.grunt.GruntParser.processDump(GruntParser.java:754) at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:376) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:230) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:205) at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:66) at org.apache.pig.Main.run(Main.java:565) at org.apache.pig.Main.main(Main.java:177) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.had
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 Simple Pig script throws NotSerializableException: org.apache.log4j.Level Stack Overflow | 2 years ago | Alfonso Nishikawa org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias a 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.PigServer.openIterator(PigServer.java:813) org.apache.pig.tools.grunt.GruntParser.processDump(GruntParser.java:696) org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:320) org.apache.pig.tools.grunt.GruntParser.p