Uploaded image for project: 'Ranger'
  1. Ranger
  2. RANGER-1501

Audit Flush to HDFS does not actually cause the audit logs to be flushed to HDFS

Attach filesAttach ScreenshotVotersWatch issueWatchersCreate sub-taskLinkCloneUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 0.7.0
    • 1.0.0
    • audit
    • None

    Description

      The reason is that HDFS file stream's flush() call does not really flush the data all the way to disk, nor even makes the data visible to HDFS users. See the HDFS semantics of the flush/sync at https://issues.apache.org/jira/browse/HADOOP-6313.

      Consequently the audit logs on HDFS won't be visible/durable from HDFS client until the log file is closed. This will, among other issues, boost chances of losing audit logs in case of system failure.

      Attachments

        Activity
          This comment will be Viewable by All Users Viewable by All Users
          Cancel

          People

            yzhou2001 Yan
            yzhou2001 Yan
            Votes:
            0 Vote for this issue
            Watchers:
            4 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Slack

                Issue deployment