[jira] [Updated] (SAMZA-321) LevelDbKeyValueStore range seems to be broken

["Jakob Homan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SAMZA-321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jakob Homan updated SAMZA-321:
------------------------------

    Priority: Critical  (was: Major)

> LevelDbKeyValueStore range seems to be broken
> ---------------------------------------------
>
>                 Key: SAMZA-321
>                 URL: https://issues.apache.org/jira/browse/SAMZA-321
>             Project: Samza
>          Issue Type: Bug
>          Components: kv
>            Reporter: Chinmay Soman
>            Priority: Critical
>
> The current implementation does this by returning an instance of:
> LevelDbRangeIterator.
> This custom iterator implements the range (from, to) by only guarding the hasNext function. This means that as long as the caller calls hasNext before a next, everything will work fine.
> However, if the caller invokes next() directly, then the range is not obeyed. Essentially, we can retrieve elements beyond the specified range (all the way to the end). 
> I tested this by tweaking testRange function of TestKeyValueStores
> - Get an iterator over a defined range (f to u)
> - Display all the values using only iter.next (until we get an exception)
> This method printed all the values from 'f' to 'z' instead of 'f' to 'u'



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