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https://issues.apache.org/jira/browse/IGNITE-19811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17739469#comment-17739469
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Ignite TC Bot commented on IGNITE-19811:
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{panel:title=Branch: [pull/10816/head] Base: [master] : No blockers
found!|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}{panel}
{panel:title=Branch: [pull/10816/head] Base: [master] : New Tests
(1)|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}
{color:#00008b}Continuous Query 4{color} [[tests
1|https://ci2.ignite.apache.org/viewLog.html?buildId=7236628]]
* {color:#013220}IgniteCacheQuerySelfTestSuite6:
CacheContinuousQueryEntriesExpireTest.testBackupQOnEntriesExpire - PASSED{color}
{panel}
[TeamCity *--> Run :: All*
Results|https://ci2.ignite.apache.org/viewLog.html?buildId=7236699&buildTypeId=IgniteTests24Java8_RunAll]
> Continuous qieries backup acknowledge message sending fails for expired
> entries
> -------------------------------------------------------------------------------
>
> Key: IGNITE-19811
> URL: https://issues.apache.org/jira/browse/IGNITE-19811
> Project: Ignite
> Issue Type: Bug
> Reporter: Aleksey Plekhanov
> Assignee: Aleksey Plekhanov
> Priority: Major
> Labels: ise
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Expire entry event has {{null}} in topology version field (see
> {{CacheContinuousQueryEntry}} constructor in the
> {{CacheContinuousQueryManager#onEntryExpired}} method). When Backup
> acknowledge is sending for such a message it silently (without warnings to
> log) fails with NPE on {{GridDiscoveryManager#cacheGroupAffinityNodes}} ->
> {{GridDiscoveryManager#resolveDiscoCache}} for {{null}} topology version (see
> {{CacheContinuousQueryHandler#sendBackupAcknowledge}}).
> This can lead to leaks in query entries buffer
> ({{CacheContinuousQueryEventBuffer#backupQ}}).
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