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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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Andrew Mashenkov updated IGNITE-4624:
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Attachment: Change_keyIterator_to_entryIterator_for_local_scan_squery.patch
I've make a simple fix and get a 30% speed up with iterating over partitions
with ScanQuery.
Fix is not complete as it does not affect OffHeap cache and not bothered with
transactions.
> 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
> Attachments:
> Change_keyIterator_to_entryIterator_for_local_scan_squery.patch
>
>
> 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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