zhihai xu created HADOOP-12258:
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Summary: Need translate java.nio.file.NoSuchFileException to
FileNotFoundException in DeprecatedRawLocalFileStatus constructor
Key: HADOOP-12258
URL: https://issues.apache.org/jira/browse/HADOOP-12258
Project: Hadoop Common
Issue Type: Bug
Components: fs
Reporter: zhihai xu
Assignee: zhihai xu
Priority: Blocker
need translate java.nio.file.NoSuchFileException to FileNotFoundException in
DeprecatedRawLocalFileStatus constructor.
HADOOP-12045 adds nio to support access time, but nio will create
java.nio.file.NoSuchFileException instead of FileNotFoundException.
many hadoop codes depend on FileNotFoundException to decide whether a file
exists. for example {{FileContext.util().exists()}}.
{code}
public boolean exists(final Path f) throws AccessControlException,
UnsupportedFileSystemException, IOException {
try {
FileStatus fs = FileContext.this.getFileStatus(f);
assert fs != null;
return true;
} catch (FileNotFoundException e) {
return false;
}
}
{code}
same for {{FileSystem#exists}}
{code}
public boolean exists(Path f) throws IOException {
try {
return getFileStatus(f) != null;
} catch (FileNotFoundException e) {
return false;
}
}
{code}
NoSuchFileException will break these functions.
Several test failures are caused by this issue:
https://builds.apache.org/job/PreCommit-YARN-Build/8630/testReport/org.apache.hadoop.yarn.server.nodemanager/TestDeletionService/testRelativeDelete/
https://builds.apache.org/job/PreCommit-YARN-Build/8632/testReport/org.apache.hadoop.yarn.server.nodemanager/TestDeletionService/testAbsDelete/
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