JAVA错误1070中的PIG UDF [英] PIG UDF in JAVA ERROR 1070
本文介绍了JAVA错误1070中的PIG UDF的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我已经在/home/GED385/pigScripts
中创建了UDF_UPPER.jar
文件.
I have created UDF_UPPER.jar
file in /home/GED385/pigScripts
.
[GED385@snshadoope1 pigScripts]$ jar tf /home/GED385/pigScripts/UDF_UPPER.jar | grep UPPER
UPPER.class
但是在执行清管器时,我遇到了错误.
But while executing the pig i am getting below error.
grunt> exec digital_web_trkg_9.pig
2012-11-30 00:15:32,027 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1070: Could not resolve UDF_UPPER.UPPER using imports: [, org.apache.pig.builtin., org.apache.pig.impl.builtin.]
Details at logfile: /data/1/GED385/pigScripts_digital/pig_1354233151486.log
PIg脚本:
REGISTER /usr/lib/pig/contrib/piggybank/java/piggybank.jar;
REGISTER /home/GED385/pigScripts/UDF_UPPER.jar;
A = LOAD '/user/GED385/digital/scrn_rsln_id_cln.dat' USING PigStorage('|')
AS (web_vstr_scrn_rsln_id:int,web_vstr_scrn_rsln_desc :chararray, edw_publn_id:chararray);
B = LOAD '/user/GED385/digital/scrn_rsln_id1_cln.dat' USING PigStorage('|')
AS (web_vstr_scrn_rsln_id:int,web_vstr_scrn_rsln_desc :chararray, edw_publn_id:chararray);
H = LOAD '/user/GED385/digital/scrn_rsln_id_base_unload_cln.dat' USING PigStorage('|')
AS (web_vstr_scrn_rsln_id_1:int,web_vstr_scrn_rsln_desc :chararray, edw_publn_id:chararray);
J = GROUP H BY edw_publn_id;
K = FOREACH J GENERATE group, MAX(H.web_vstr_scrn_rsln_id_1);
C = UNION A, B;
D = FILTER C BY web_vstr_scrn_rsln_desc is not null;
E = DISTINCT D;
F = JOIN E BY web_vstr_scrn_rsln_desc LEFT , H BY web_vstr_scrn_rsln_desc;
I = FILTER F BY H::web_vstr_scrn_rsln_id_1 is null;
--G = FOREACH I GENERATE H::web_vstr_scrn_rsln_id_1,E::web_vstr_scrn_rsln_desc,E::edw_publn_id;
G = FOREACH I GENERATE K.$1+1,E::web_vstr_scrn_rsln_desc,E::edw_publn_id,UDF_UPPER.UPPER(E::web_vstr_scrn_rsln_desc);
--L = JOIN G BY $2 LEFT , K BY $0;
DUMP G;
推荐答案
根据以下输出,
[GED385@snshadoope1 pigScripts]$ jar tf /home/GED385/pigScripts/UDF_UPPER.jar | grep UPPER
UPPER.class
UPPER.java没有名为'UDF_UPPER'的软件包.
UPPER.java has no package named 'UDF_UPPER'.
并且错误1070 :您正试图在UDF_UPPER包中导入UPPER类.
And in error 1070 : you are trying to import UPPER class inside UDF_UPPER package.
UDF_UPPER.UPPER
表示 "<package name>.<class name>"
UDF_UPPER.UPPER
means "<package name>.<class name>"
但是由于您的jar中没有 UDF_UPPER 软件包,因此在猪脚本中仅使用 UPPER
,如下所示:
But as there is no UDF_UPPER package in your jar, so use only UPPER
in pig script as below :
G = FOREACH I GENERATE K.$1+1,E::web_vstr_scrn_rsln_desc,E::edw_publn_id,UPPER(E::web_vstr_scrn_rsln_desc);
希望,它可以解决您的问题.
Hope, it solves your problem.
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