Frontend Exception Error 1066 Unable To Open Iterator For Alias
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Error 1066 Unable To Open Iterator For Alias Pig
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Error 1066: Unable To Open Iterator For Alias Records
Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question error 1066 unable to open iterator for alias c 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 a minute: Sign up ERROR 1066: Unable to open iterator for alias in pig up vote 3 down vote favorite org.apache.pig.backend.hadoop.executionengine.mapreducelayer.mapreducelauncher - failed! 1 I am running a pig script which is as follows REGISTER '/home/vishal/FirstUdf.jar'; DEFINE UPPER com.first.UPPER(); A = LOAD '/home/vishal/exampleforPIG1' AS (exchange: chararray, symbol: chararray, date: int,value:float); B= FOREACH A GENERATE com.first.UPPER(exchange); DUMP B; Following is my UDF in java package com.first; import java.io.IOException; import org.apache.pig.EvalFunc; import org.apache.pig.data.Tuple; import org.apache.pig.impl.util.WrappedIOException; @SuppressWarnings("deprecation") public class UPPER extends EvalFunc
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Failed To Read Data From Pig
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like 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 http://stackoverflow.com/questions/15546402/error-1066-unable-to-open-iterator-for-alias-in-pig open iterator for test when I have the code: my_file = LOAD '$my_records_file' USING PigStorage('\t') AS (field0:chararray, field1:int); test = FILTER my_file BY field0 != null; Why am I getting this error? hadoop mapreduce apache-pig share|improve this question asked Jul 1 '14 at 17:03 user3662937 130116 For people who found this post when looking for ERROR 1066: Unable to open iterator for alias here is a generic solution. –Dennis Jaheruddin Dec 28 '15 http://stackoverflow.com/questions/24515745/pig-error-1066-unable-to-open-iterator-for-alias-test at 15:28 add a comment| 3 Answers 3 active oldest votes up vote 0 down vote accepted I think you want to filter rows that have null values ? the Syntax is field0 IS NOT NULL. my_file = LOAD '$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 do
here for a quick overview of the https://community.hortonworks.com/questions/14589/pigstorage-in-mapreduce-mode.html site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company unable to 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 unable to open like you, helping each other. Join them; it only takes a minute: Sign up ERROR 1066: Unable to open iterator for alias- PIG SCRIPT up vote 0 down vote favorite I have been facing this issue from long time. I tried to solve this but i couldn't. I need some experts advice to solve this. I am trying to load a sample tweets json file. sample.json;- {"filter_level":"low","retweeted":false,"in_reply_to_screen_name":"FilmFan","truncated":false,"lang":"en","in_reply_to_status_id_str":null,"id":689085590822891521,"in_reply_to_user_id_str":"6048122","timestamp_ms":"1453125782100","in_reply_to_status_id":null,"created_at":"Mon Jan 18 14:03:02 +0000 2016","favorite_count":0,"place":null,"coordinates":null,"text":"@filmfan hey its time for you guys follow @acadgild To #AchieveMore and participate in contest Win Rs.500 worth vouchers","contributors":null,"geo":null,"entities":{"symbols":[],"urls":[],"hashtags":[{"text":"AchieveMore","indices":[56,68]}],"user_mentions":[{"id":6048122,"name":"Tanya","indices":[0,8],"screen_name":"FilmFan","id_str":"6048122"},{"id":2649945906,"name":"ACADGILD","indices":[42,51],"screen_name":"acadgild","id_str":"2649945906"}]},"is_quote_status":false,"source":"TweetDeck<\/a>","favorited":false,"in_reply_to_user_id":6048122,"retweet_count":0,"id_str":"689085590822891521","user":{"location":"India ","default_profile":false,"profile_background_tile":false,"statuses_count":86548,"lang":"en","profile_link_color":"94D487","profile_banner_url":"https://pbs.twimg.com/profile_banners/197865769/1436198000","id":197865769,"following":null,"protected":false,"favourites_count":1002,"profile_text_color":"000000","verified":false,"description":"Proud Indian, Digital Marketing Consultant,Traveler, Foodie, Adventurer, Data Architect, Movie Lover, Namo Fan","contributors_enabled":false,"profile_sidebar_border_color":"000000","name":"Bahubali","profile_background_color":"000000","created_at":"Sat Oct 02 17:41:02 +0000 2010","default_profile_image":false,"followers_count":4467,"profile_image_url_https":"https://pbs.twimg.com/profile_images/664486535040000000/GOjDUiu
Data Ingestion & Streaming Data Processing Design & 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 / 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 = 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.hadoop.util.RunJar.run(RunJar.java:221) at org.apache.hadoop.util.RunJar.main(RunJar.java:136)Caused by: java.io.IOException: Job terminated with anomalous stat