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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10823) Resolve LATEST_TIMESTAMP to current server time before scanning for ACLs
Date Fri, 11 Apr 2014 19:39:15 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13967008#comment-13967008
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Anoop Sam John commented on HBASE-10823:
----------------------------------------

Oh Sorry Andy.. I was trying to pass the new test.
bq.Anoop Sam John do you think the latest patch here is sufficient for now? 
With considering the last cell's TS...!!  hmm I doubt...
In the same test which I attached, we can have like
{code}
Delete d = new Delete(TEST_ROW1);
d.deleteColumns(TEST_FAMILY, TEST_Q2, 124L);
d.deleteColumns(TEST_FAMILY, TEST_Q1, 127L);
{code}
such that for Q1 we may have to check for 2 cells acl but for Q2 only 1 cell's.




> Resolve LATEST_TIMESTAMP to current server time before scanning for ACLs
> ------------------------------------------------------------------------
>
>                 Key: HBASE-10823
>                 URL: https://issues.apache.org/jira/browse/HBASE-10823
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.98.1
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>            Priority: Minor
>             Fix For: 0.99.0, 0.98.2
>
>         Attachments: HBASE-10823.patch, HBASE-10823.patch, HBASE-10823.patch, test.patch
>
>
> Storing values with timestamps in the future is probably bad practice and can lead to
surprises. If cells with timestamps in the future have ACLs, permissions from those ACLs will
incorrectly be considered for authorizing the pending mutation. For sure that will be surprising.
> We should be able to avoid this case by resolving LATEST_TIMESTAMP to the current server
time when creating the internal scanner for finding ACLs in the covered cell set. 
> Documenting a todo item from a discussion between [~anoop.hbase] and myself.



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