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https://issues.apache.org/jira/browse/IGNITE-20501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksey Plekhanov resolved IGNITE-20501.
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Fix Version/s: 2.16
Release Note: SQL Calcite: Fixed memory leak in MailboxRegistryImpl#remotes
Resolution: Fixed
[~ivandasch], thanks for the review! Merged to master.
> Calcite engine. Memory leak in MailboxRegistryImpl#remotes on JOINs
> -------------------------------------------------------------------
>
> Key: IGNITE-20501
> URL: https://issues.apache.org/jira/browse/IGNITE-20501
> Project: Ignite
> Issue Type: Bug
> Reporter: Aleksey Plekhanov
> Assignee: Aleksey Plekhanov
> Priority: Major
> Labels: calcite, ise
> Fix For: 2.16
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> When JOIN relational operator is executed, downstream of JOIN can be closed
> if only one side of JOIN is already drained (see last lines of
> {{MergeJoinNode.InnerJoin#join}}, for example). In this case query can be
> prematurely closed, and after this, message for another side of join can
> arrive and register new {{Inbox}} (see {{ExchangeServiceImpl#onMessage(UUID,
> QueryBatchMessage)}}), that never will be unregistered.
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