錯誤，同時運行的Hadoop

[email protected]:/usr/local/hadoop$ bin/hadoop dfs -copyFromLocal /tmp/input 
/user/haduser/input 

11/12/14 14:21:00 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. Already tried 0 time(s). 

11/12/14 14:21:01 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. Already tried 1 time(s). 

11/12/14 14:21:02 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. Already tried 2 time(s). 

11/12/14 14:21:03 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. Already tried 3 time(s). 

11/12/14 14:21:04 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. Already tried 4 time(s). 

11/12/14 14:21:05 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. Already tried 5 time(s). 

11/12/14 14:21:06 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. Already tried 6 time(s). 

11/12/14 14:21:07 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. -Already tried 7 time(s). 

11/12/14 14:21:08 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. Already tried 8 time(s). 

11/12/14 14:21:09 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. Already tried 9 time(s). 

Bad connection to FS. command aborted. exception: Call to localhost/127.0.0.1:54310 failed on connection exception: java.net.ConnectException: Connection refused

我收到的時候我試圖複製文件從/tmp/input到/user/haduser/input即使該文件/etc/hosts包含localhost條目上述錯誤。運行jps command時，未列出TaskTracker和namenode。錯誤，同時運行的Hadoop

可能是什麼問題？請有人幫我這個。

來源

2011-12-14 Pooja N Babu

NameNode（NN）維護HDFS的名稱空間，並且它應該在HDFS上運行用於文件系統操作。檢查日誌爲什麼NN尚未啓動。對於HDFS上的操作，不需要TaskTracker，只有NN和DN就足夠了。查看http://goo.gl/8ogSk和http://goo.gl/NIWoK教程，瞭解如何在單節點和多節點上設置Hadoop。

來源

2011-12-14 14:04:08

我按照相同的鏈接進行安裝。但仍然收到錯誤。 – 2011-12-15 15:45:12

bin中的所有文件都是exectuables。只需複製命令並將其粘貼到終端中即可。確保地址是正確的，即用戶必須被替換。這會做到這一點。

來源

2012-05-16 10:32:25

我有類似的問題 - 實際上Hadoop綁定到IPv6。 Then I Added - 「export HADOOP_OPTS=-Djava.net.preferIPv4Stack=true」to $HADOOP_HOME/conf/hadoop-env.sh

即使我在系統上禁用了IPv6，Hadoop仍然與IPv6綁定。一旦我將它添加到env，開始工作正常。

希望這可以幫助別人。

來源

2012-06-26 10:02:59 user1482338

嘗試做ssh來使用IP本地系統，在這種情況下：

$ SSH 127.0.0.1

一旦你能夠成功地做到了SSH。運行下面的命令來了解打開的端口

列表

〜$ lsof的-i

找監聽連接器，名稱：本地主機：< PORTNAME>（LISTEN）

拷貝< PORTNAME>和替換hadoop conf文件夾中core-site.xml中fs.default.name屬性標記的端口號的現有值

保存core-site.xml，這應該解決問題。

來源

2014-02-08 16:45:38 Abhimanyu

錯誤，同時運行的Hadoop

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