Wei Zheng created HIVE-15421:
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Summary: Assumption in exception handling can be wrong in
DagUtils.localizeResource
Key: HIVE-15421
URL: https://issues.apache.org/jira/browse/HIVE-15421
Project: Hive
Issue Type: Bug
Components: Tez
Affects Versions: 2.2.0
Reporter: Wei Zheng
Assignee: Wei Zheng
In localizeResource once we got an IOException, we always assume this is due to
another thread writing the same file. But that is not always the case. Even
without the interference from other threads, it may still get an IOException
(RemoteException) due to failure of copyFromLocalFile in a specific
environment, for example, in a kerberized HDFS encryption zone where the TGT is
expired.
We'd better fail early with different message to avoid confusion.
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