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svn merge -c 1516237 merging from trunk to branch-2 to fix HDFS-4994. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1516242 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Kihwal Lee 2013-08-21 18:18:45 +00:00
parent 83c4906a2e
commit 42ab6e6247
2 changed files with 23 additions and 2 deletions
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2
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -36,6 +36,8 @@ Release 2.3.0 - UNRELEASED
HDFS-5068. Convert NNThroughputBenchmark to a Tool to allow generic options.
(shv)
HDFS-4994. Audit log getContentSummary() calls. (Robert Parker via kihwal)
OPTIMIZATIONS
BUG FIXES

23
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
View File

@ -3398,12 +3398,26 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
return true;
}
ContentSummary getContentSummary(String src) throws AccessControlException,
FileNotFoundException, UnresolvedLinkException, StandbyException {
/**
* Get the content summary for a specific file/dir.
*
* @param src The string representation of the path to the file
*
* @throws AccessControlException if access is denied
* @throws UnresolvedLinkException if a symlink is encountered.
* @throws FileNotFoundException if no file exists
* @throws StandbyException
* @throws IOException for issues with writing to the audit log
*
* @return object containing information regarding the file
* or null if file not found
*/
ContentSummary getContentSummary(String src) throws IOException {
FSPermissionChecker pc = getPermissionChecker();
checkOperation(OperationCategory.READ);
byte[][] pathComponents = FSDirectory.getPathComponentsForReservedPath(src);
readLock();
boolean success = true;
try {
checkOperation(OperationCategory.READ);
src = FSDirectory.resolvePath(src, pathComponents, dir);
@ -3411,8 +3425,13 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
checkPermission(pc, src, false, null, null, null, FsAction.READ_EXECUTE);
}
return dir.getContentSummary(src);
} catch (AccessControlException ace) {
success = false;
throw ace;
} finally {
readUnlock();
logAuditEvent(success, "contentSummary", src);
}
}