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https://issues.apache.org/jira/browse/IGNITE-4624?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anton Vinogradov updated IGNITE-4624:
-------------------------------------
    Fix Version/s:     (was: 1.9)
                   2.0

FixVersion changed to 2.0.
In case issue can be done till Feb 17 please rollback this change.

> ScanQuery shows poor performance.
> ---------------------------------
>
>                 Key: IGNITE-4624
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4624
>             Project: Ignite
>          Issue Type: Improvement
>          Components: cache
>    Affects Versions: 1.8
>            Reporter: Andrew Mashenkov
>            Assignee: Andrew Mashenkov
>             Fix For: 2.0
>
>         Attachments: 
> Change_keyIterator_to_entryIterator_for_local_scan_squery.patch, Demo.java
>
>
> I've found that ScanQuery use cache KeySet iterator which make cache 
> peek\entry calls for getting value.
> It is look like we can avoid this calls by using EntrySet iterator for 
> iterating over local partitions.
> Start point is GridCacheQueryManager.onheapIterator(). 



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