在运行HCatalog时出错

本文介绍了在运行HCatalog时出错的处理方法，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

  A = LOAD'eventnew.txt'USING HCatalogLoader（）;

然后我尝试了

  A = LOAD'xyz'USING org.apache.hive.hcatalog.pig.HCatLoader（）;

这也行不通。

有什么问题？我是Hadoop的新手。

解决方案

正如GoBrewers14所述，您必须从-useHCatalog开始。如果您正在运行Pig脚本，另一种方法是确定HCatalog jar的位置，并将REGISTER语句的jar路径添加到脚本的顶部。

示例：

注册/home/user/Installations/hive-0.11.0-bin/hcatalog/share/hcatalog/hcatalog-core-0.11 .0.jar;

当然，您的路径/版本可能不同。

A = LOAD 'eventnew.txt' USING HCatalogLoader();
Then I tried
A = LOAD 'xyz' USING org.apache.hive.hcatalog.pig.HCatLoader();
This is also not working.
what is the problem? I am a novice in Hadoop.
解决方案
As stated by GoBrewers14 you must start pig with -useHCatalog. If you are running a Pig script an alternative is to determine the location of the HCatalog jar and add a REGISTER statement with the path of the jar to the top of your script
Example:
REGISTER /home/user/Installations/hive-0.11.0-bin/hcatalog/share/hcatalog/hcatalog-core-0.11.0.jar;
of course your path/version may be different.

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