当我尝试使用属性文件调用pig脚本时,我收到错误:
pig -P /mapr/ANALYTICS/apps/PigTest/pig.properties -f pig_if_condition.pig
SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/opt/mapr/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/opt/mapr/hbase/hbase-0.98.4/lib/slf4j-log4j12-1.6.4.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory] 15/05/20 15:42:52 ERROR pig.Main: ERROR 2999: Unexpected internal error. Unable to parse properties file
'/ MAPR /分析/应用/ PigTest / pig.properties' 15/05/20 15:42:52 WARN pig.Main:没有要写入的日志文件。 15/05/20 15:42:52错误pig.Main:java.lang.RuntimeException:无法解析属性文件 '/mapr/ANALYTICS/apps/PigTest/pig.properties' 在org.apache.pig.Main.run(Main.java:343) 在org.apache.pig.Main.main(Main.java:156) 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) 在org.apache.hadoop.util.RunJar.main(RunJar.java:212)
Pig脚本是:
test = load '$path' USING PigStorage(',') AS (ip:chararray,country:chararray);
DUMP test;
答案 0 :(得分:1)
-param(-p)是指定单个参数。要指定参数文件,我们必须使用 -param_file 属性。
快捷命令:
用法:
pig -param_file {property_file} -f {pig_file}
示例:
pig -param_file a.properties -f a.pig
猪脚本:a.pig
A = LOAD '$INPUT' USING PigStorage(',') AS (country_code:chararray, country_name:chararray);
DUMP A;
属性文件:a.properties
INPUT=a.csv
测试文件:a.csv
IN,India
US,United States
UK,United Kingdom
输出
(IN,India)
(US,United States)
(UK,United Kingdom)