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From "Kuhu Shukla (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11246) FSNameSystem#logAuditEvent should be called outside the read or write locks during operations like getContentSummary
Date Tue, 18 Jul 2017 16:05:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11246?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kuhu Shukla updated HDFS-11246:
-------------------------------
    Attachment: HDFS-11246.002.patch

Fixed checkstyle and whitespace issues. Findbugs warnings are unrelated to the patch. Same
goes for the test failures. [~daryn], request for review/comments on the patch. Thanks a lot!

> FSNameSystem#logAuditEvent should be called outside the read or write locks during operations
like getContentSummary
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-11246
>                 URL: https://issues.apache.org/jira/browse/HDFS-11246
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.7.3
>            Reporter: Kuhu Shukla
>            Assignee: Kuhu Shukla
>         Attachments: HDFS-11246.001.patch, HDFS-11246.002.patch
>
>
> {code}
>     readLock();
>     boolean success = true;
>     ContentSummary cs;
>     try {
>       checkOperation(OperationCategory.READ);
>       cs = FSDirStatAndListingOp.getContentSummary(dir, src);
>     } catch (AccessControlException ace) {
>       success = false;
>       logAuditEvent(success, operationName, src);
>       throw ace;
>     } finally {
>       readUnlock(operationName);
>     }
> {code}
> It would be nice to have audit logging outside the lock esp. in scenarios where applications
hammer a given operation several times. 



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