eBugs in Cloud Systems created HADOOP-16295:
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Summary: FileUtil.replaceFile() throws an IOException when it is
interrupted
Key: HADOOP-16295
URL: https://issues.apache.org/jira/browse/HADOOP-16295
Project: Hadoop Common
Issue Type: Bug
Reporter: eBugs in Cloud Systems
Dear Hadoop developers, we are developing a tool to detect exception-related
bugs in Java. Our prototype has spotted the following {{throw}} statement whose
exception class and error message seem to indicate different error conditions.
Since we are not very familiar with Hadoop's internal work flow, could you
please help us verify if this is a bug, i.e., will the callers have trouble
handling the exception, and will the users/admins have trouble diagnosing the
failure?
Version: Hadoop-3.1.2
File:
HADOOP-ROOT/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileUtil.java
Line: 1387
{code:java}
throw new IOException("replaceFile interrupted.");{code}
Reason: An {{IOException}} can mean many different errors, while the error
message indicates that {{replaceFile()}} is interrupted. Will this mismatch be
a problem? For example, will the callers try to handle other {{IOException}}
accidentally (and incorrectly) handle the interrupt? Is an
{{InterruptedIOException}} a better exception here?
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