Details
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Sub-task
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Status: Resolved
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Minor
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Resolution: Won't Fix
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0.18.1
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None
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None
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None
Description
Our cluster is behind a gateway, and we asked users to use hadoop.socks.server to access the cluster.
Recently, we "upgraded" our cluster from 0.17.2 to 0.18.1. However, this creates the following problem:
Wrote input for Map #4
Starting Job
java.net.UnknownHostException: unknown host: hadoop-master
at org.apache.hadoop.ipc.Client$Connection.<init>(Client.java:195)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:779)
at org.apache.hadoop.ipc.Client.call(Client.java:704)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:216)
at org.apache.hadoop.dfs.$Proxy0.getProtocolVersion(Unknown Source)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:319)
Nothing else has changed and we were able to duplicate this error on a separate cluster setup, so we
believe 0.18.1 has broken this feature.