有没有可能是这个原因:
Check your slaves' mapred-site.xml. They could be having a bad
mapred.job.tracker value in them. That property is required by the TT
to be correctly pointing to the machine:port of the JT.If that is correct on all nodes, investigate TT logs
Check your slaves' mapred-site.xml. They could be having a bad
mapred.job.tracker value in them. That property is required by the TT
to be correctly pointing to the machine:port of the JT.If that is correct on all nodes, investigate TT logs
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