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From "Kevin Faro (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ACCUMULO-1051) Authorizations has inconsistent serialization
Date Wed, 13 Feb 2013 21:34:12 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-1051?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kevin Faro updated ACCUMULO-1051:
---------------------------------

    Labels: newbie  (was: )
    Status: Patch Available  (was: Open)

I wasn't able to recreate the failing test case since I think the underlying HashMap was consistently
hashing the keys a and b, however the HashSet API indicates that the Iterator will not return
keys in any particular order.  So I went ahead and added the test case and changed the implementation
of auths to use a TreeSet so it will always iterate over the keys consistently regardless
of insertion order.
                
> Authorizations has inconsistent serialization
> ---------------------------------------------
>
>                 Key: ACCUMULO-1051
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1051
>             Project: Accumulo
>          Issue Type: Bug
>          Components: client
>            Reporter: Christopher Tubbs
>            Assignee: Christopher Tubbs
>            Priority: Trivial
>              Labels: newbie
>             Fix For: 1.5.0
>
>
> The same set of authorizations may not serialize to the same value each time, if specified
in a different order when constructed (like new Authorizations("a", "b") and new Authorizations("b",
"a")), because serialization reproducibility depends on the insert order in the underlying
HashSet.
> So, one could get the following to happen:
> {code:java}
> true == auths1.equals(auths2) && !auths1.serialize().equals(auths2.serialize());
> {code}

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