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https://issues.apache.org/jira/browse/IGNITE-48?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Ozerov updated IGNITE-48:
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Fix Version/s: (was: sprint-5)
sprint-6
> Ensure there is no race between quering data and swap/unswap.
> -------------------------------------------------------------
>
> Key: IGNITE-48
> URL: https://issues.apache.org/jira/browse/IGNITE-48
> Project: Ignite
> Issue Type: Task
> Components: cache
> Affects Versions: sprint-1
> Reporter: Vladimir Ozerov
> Assignee: Vladimir Ozerov
> Fix For: sprint-6
>
>
> Consider the following scenario:
> 1) Put a set of keys into cache so that they go to a SQL table "A".
> 2) Move some of these keys to swap.
> 3) Start quering table "A". Query will create snapshot of sorted index and
> will iterate it.
> 4) At the same update swapped keys so that they should go to another SQL
> table (e.g. change value type).
> The question is: what query engine will do when swapped key is met in index
> snapshot? If it will try to unswap it, then an error will be thrown (e.g.
> ClassCastException).
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