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https://issues.apache.org/jira/browse/IGNITE-3192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15299967#comment-15299967
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Taras Ledkov commented on IGNITE-3192:
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LinkedHashMap of (requestId, GridFutureAdapter) is replaced with
{{GridCacheQueryManager.CanceledKeyMap}}.
It is used to prevent put new key/value pair into the map when the cancel
message has been already processed.
> Leaks at the GridCacheQueryManager on iterator canceling
> --------------------------------------------------------
>
> Key: IGNITE-3192
> URL: https://issues.apache.org/jira/browse/IGNITE-3192
> Project: Ignite
> Issue Type: Bug
> Affects Versions: 1.6
> Reporter: Taras Ledkov
> Assignee: Taras Ledkov
> Fix For: 1.7
>
>
> When cancel request and scan request are processed with a race the
> GridFutureAdapter object isn't removed form the
> GridCacheQueryManager.qryIters submaps.
> The problem is reproduced occasionally by the test:
> [GridCacheAtomicNearEnabledPrimaryWriteOrderMultiNodeFullApiSelfTest.testIgniteCacheIterator|http://149.202.210.143:8111/viewLog.html?buildId=250124&tab=buildResultsDiv&buildTypeId=IgniteTests_IgniteCacheFullApi]
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