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Posted to common-user@hadoop.apache.org by Jason Venner <ja...@attributor.com> on 2008/02/07 04:39:50 UTC

error log question - org.apache.hadoop.dfs.NameNode.Secondary: java.net.UnknownHostException: hdfs

I see these in my log, what have I got configured incorrectly?

 2008-02-06 19:38:28,574 ERROR org.apache.hadoop.dfs.NameNode.Secondary: 
Exception in doCheckpoint:
2008-02-06 19:38:28,574 ERROR org.apache.hadoop.dfs.NameNode.Secondary: 
java.net.UnknownHostException: hdfs
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177)
        at java.net.Socket.connect(Socket.java:519)
        at java.net.Socket.connect(Socket.java:469)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:388)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:500)
        at sun.net.www.http.HttpClient.<init>(HttpClient.java:233)
        at sun.net.www.http.HttpClient.New(HttpClient.java:306)
        at sun.net.www.http.HttpClient.New(HttpClient.java:318)
        at 
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:792)
        at 
sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:733)
        at 
sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:658)
        at 
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:981)
        at 
org.apache.hadoop.dfs.TransferFsImage.getFileClient(TransferFsImage.java:142)
        at 
org.apache.hadoop.dfs.TransferFsImage.getFileClient(TransferFsImage.java:181)
        at 
org.apache.hadoop.dfs.SecondaryNameNode.getFSImage(SecondaryNameNode.java:209)
        at 
org.apache.hadoop.dfs.SecondaryNameNode.doCheckpoint(SecondaryNameNode.java:275)
        at 
org.apache.hadoop.dfs.SecondaryNameNode.run(SecondaryNameNode.java:192)
        at java.lang.Thread.run(Thread.java:619)

-- 
Jason Venner
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