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Saving file in SAS EG

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Frequent Contributor
Posts: 81

Saving file in SAS EG

Hi,

When I try to save/copy files via hadoop from SAS EG, I'm getting the following error:

 

ERROR: org.apache.hadoop.net.ConnectTimeoutException: Call From servername/serverIPaddress to 
servername1:8020 failed on socket timeout exception: org.apache.hadoop.net.ConnectTimeoutException: 
20000 millis timeout while waiting for channel to be ready for connect. ch : 
java.nio.channels.SocketChannel[connection-pending remote=servername1/server1IPaddress:8020];
 

 What can be the problem? 

Contributor
Posts: 26

Re: Saving file in SAS EG

Looks like it is trying the wrong ip or socket - check if you have the correct ones.
Esteemed Advisor
Posts: 5,194

Re: Saving file in SAS EG

What are you trying to do?
Please show the full log.
Can this be reproduced by other files, programs and clients?
Data never sleeps
Contributor
Posts: 46

Re: Saving file in SAS EG

I know surely you must be following the two basic things.

--> the user bt which the operation is performed should be have a passwordless ssh connection to the datanodes.

--> Second you can check for the datanaode status from the 50070 port. Maybe the hadoop services need to be restarted.
                    --> in putty login from user which has password ssh access to datanodes.

                    --> establish ssh connection to datanode.
                    --> execute the /Hadoop/hadoop-2.4.0/sbin/start-dfs.sh

 

If the above is in perfect order then you have to provide more details on the log.

 

 

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