hadoop java api操作hdfs出现Retrying connect to server: localhost/127.0.0.1:8020

最新推荐文章于 2023-02-22 08:00:00 发布

原创

最新推荐文章于 2023-02-22 08:00:00 发布 · 3.2w 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#hadoop #hdfs

在尝试使用Java代码通过Hadoop API连接HDFS时遇到问题，报错显示' Retrying connect to server: localhost/127.0.0.1:8020'。错误原因在于未指定正确的端口。解决方案是将连接地址改为'hdfs://localhost:9000'，从而成功连接。

写了一个简单的java代码查看hdfs 上文件内容，结果无法连接，出现Retrying connect to server: localhost/127.0.0.1:8020，具体如下：

4/03/24 18:45:56 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
14/03/24 18:45:57 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 1 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
14/03/24 18:45:58 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 2 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
14/03/24 18:45:59 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 3 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
14/03/24 18:46:00 INFO ipc.Client: Retrying connect to server: localhost