RPC$VersionMismatch exception is not fatal to JobTracker
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Key: HADOOP-1071
URL: https://issues.apache.org/jira/browse/HADOOP-1071
Project: Hadoop
Issue Type: Bug
Components: mapred
Affects Versions: 0.12.0
Reporter: Nigel Daley
The following exception should be fatal to the JT, but isn't. Instead, this
exception is repeated every 1 second forever.
2007-03-06 23:07:35,947 WARN org.apache.hadoop.mapred.JobTracker: Error
starting tracker: org.apache.hadoop.ipc.RPC$VersionMismatch: Protocol
org.apache.hadoop.dfs.ClientProtocol v
ersion mismatch. (client = 7, server = 10)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:253)
at org.apache.hadoop.dfs.DFSClient.<init>(DFSClient.java:106)
at
org.apache.hadoop.dfs.DistributedFileSystem.initialize(DistributedFileSystem.java:65)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:160)
at org.apache.hadoop.fs.FileSystem.getNamed(FileSystem.java:119)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:91)
at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:546)
at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:76)
at org.apache.hadoop.mapred.JobTracker.main(JobTracker.java:1600)
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