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Posted to dev@ignite.apache.org by "Andrew Mashenkov (JIRA)" <ji...@apache.org> on 2017/01/27 12:37:24 UTC

[jira] [Created] (IGNITE-4624) ScanQuery shows poor performance.

Andrew Mashenkov created IGNITE-4624:
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             Summary: 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


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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