Member since
04-28-2017
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05-16-2017
12:47 PM
While doing HDPCD exam I got the error ; HDPCD exam failed on connection exception: java.net.ConnectException: Connection refused;details see: http://wiki.apache.org/hadoop/ConnectionRefused and could not connect to HDFS. Is it right that we get this sort of error and even we need to do the technical connection troubleshooting while doing exam ? I tried starting all the services, yet it didn't worked. What's the process to raise this issue with the exam authority ? and if I can retake the exam.
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Apache Hadoop
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HDFS
04-29-2017
05:41 PM
Hi Namit, Ahh, thanks a lot.. such a silly mistake... it's working now. Thanks again. Rashmi
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04-29-2017
05:27 PM
Thanks a lot Namit. I didn't realised I am doing such a silly mistake. it's working now. thanks again.
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04-29-2017
04:44 PM
Hi Namit, Data is ; (1,NightmareBeforeChristmas,1993,3.9,4568)
(2,TheMummy,1932,3.5,4388)
(3,OrphansoftheStorm,1921,3.2,9062) (4,TheObjectofBeauty,1991,2.8,6150)
(5,NightTide,1963,2.8,5126) (6,OneMagicChristmas,1985,3.8,5333) (7,MurielsWedding,1994,3.5,6323) (8,MothersBoys,1994,3.4,5733) (9,NosferatuOriginalVersion,1929,3.5,5651) (10,NickofTime,1995,3.4,5333) Code is; movie_a = LOAD '/root/horton/movie_rev.txt' USING PigStorage(',') as (id:int ,name:chararray ,year:int ,rating:float ,duration:int); grunt> moive_rate = FILTER movie_a BY year==1994; grunt> dump movie_rate; Error is; 2017-04-29 07:57:48,709 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1003: Unable to find an operator for alias movie_rate
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04-29-2017
08:13 AM
1 Kudo
Hi @Namit Maheshwari Thanks for your response. I have placed the screenshots in the attached file, please have a look. It's a very simple FILTER command on a set of just 10 records. pig-error1-hortonworks.png Thanks, Rashmi
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04-28-2017
08:50 PM
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Apache Pig