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Posted to common-issues@hadoop.apache.org by "Mark Miller (JIRA)" <ji...@apache.org> on 2013/07/03 19:34:20 UTC
[jira] [Created] (HADOOP-9699)
org.apache.hadoop.fs.FileUtil#canRead and canWrite should return false on
SecurityExceptions.
Mark Miller created HADOOP-9699:
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Summary: org.apache.hadoop.fs.FileUtil#canRead and canWrite should return false on SecurityExceptions.
Key: HADOOP-9699
URL: https://issues.apache.org/jira/browse/HADOOP-9699
Project: Hadoop Common
Issue Type: Bug
Reporter: Mark Miller
Priority: Minor
Currently, if a security manager denies access on these calls, a SecurityException is thrown rather than returning false.
This causes ugly behavior in MiniDFSCluster#createPermissionsDiagnosisString for example. If you are running with a security manager, that method can hide root exceptions on you because when it tries to create the permissions string, canRead and canWrite can throw security exceptions - the original exception is lost, and the problem may not be permissions related at all (it wasn't in the case that I ran into this).
Rather than hardening createPermissionsDiagnosisString, it seems like these methods should just treat SecurityExceptions as lack of access.
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