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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "ConnectionRefused" by SteveLoughran
Date Tue, 19 Jan 2016 18:21:30 GMT
Dear Wiki user,

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The "ConnectionRefused" page has been changed by SteveLoughran:

point out that the hostname is often in a config option

  If the application or cluster is not working, and this message appears in the log, then
it is more serious.
-  1. Check the hostname the client using is correct
+  1. Check the hostname the client using is correct. If it's in a Hadoop configuration option:
examine it carefully, try doing an ping by hand
   1. Check the IP address the client is trying to talk to for the hostname is correct.
   1. Make sure the destination address in the exception isn't  -this means that you
haven't actually configured the client with the real address for that
  service, and instead it is picking up the server-side property telling it to listen on every
port for connections.

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