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Posted to hdfs-dev@hadoop.apache.org by "Rushabh S Shah (JIRA)" <ji...@apache.org> on 2017/07/11 18:00:01 UTC

[jira] [Resolved] (HDFS-12121) Audit logging of unsuccessful namesystem calls should not be done while holding fslock.

     [ https://issues.apache.org/jira/browse/HDFS-12121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rushabh S Shah resolved HDFS-12121.
-----------------------------------
    Resolution: Duplicate

Dup of HDFS-11246

> Audit logging of unsuccessful namesystem calls should not be done while holding fslock.
> ---------------------------------------------------------------------------------------
>
>                 Key: HDFS-12121
>                 URL: https://issues.apache.org/jira/browse/HDFS-12121
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.7.0
>            Reporter: Rushabh S Shah
>            Assignee: Rushabh S Shah
>
> Currently we are audit logging the unsuccessful namesystem calls while holding fslock.
> Following is just one example.
> {code:title=FSNamesystem.java|borderStyle=solid}
> HdfsFileStatus getFileInfo(final String src, boolean resolveLink)
>     throws IOException {
>     final String operationName = "getfileinfo";
>     checkOperation(OperationCategory.READ);
>     HdfsFileStatus stat = null;
>     readLock();
>     try {
>       checkOperation(OperationCategory.READ);
>       stat = FSDirStatAndListingOp.getFileInfo(dir, src, resolveLink);
>     } catch (AccessControlException e) {
>       logAuditEvent(false, operationName, src); //<---- audit logging while holding fs read lock.
>       throw e;
>     } finally {
>       readUnlock(operationName);
>     }
>     logAuditEvent(true, operationName, src);
>     return stat;
>   }
> {code}
> We should avoid doing this.



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