hadoop - sqoop 服务器启动失败

Question

我正在尝试连接到本地主机上的 sqoop 服务器:

sqoop:000> set server --host manager --port 12000 --webapp sqoop
Server is set successfully
sqoop:000> show version -all
client version:
  Sqoop 1.99.6 source revision 07244c3915975f26f03d9e1edf09ab7d06619bb8 
  Compiled by root on Wed Apr 29 10:40:43 CST 2015
0    [main] WARN  org.apache.hadoop.util.NativeCodeLoader  - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Exception has occurred during processing command 
Exception: org.apache.sqoop.common.SqoopException Message: CLIENT_0000:An unknown error has occurred
sqoop:000> 


Port 12000 is closed

    $ netstat -na|grep 12000 

为什么会这样？

Answer 1

Hadoop 库需要在 server/conf 目录下名为 catalina.properties 的文件中设置。在此文件中，您需要在 common-loader 属性中设置 hadoop 库路径。默认为 /usr/lib/hadoop 和 /usr/lib/hadoop/lib。如果您的 hadoop 库位于任何不同的位置，请在此属性中指向该目录。

sqoop2-tool verify 可用于验证所有 sqoop 服务器配置。如果成功，您可以使用 sqoop2-server start 启动您的服务器。

引用:
https://sqoop.apache.org/docs/1.99.6/Installation.html