Vyacheslav Koptilin created IGNITE-16161:
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Summary: Memory leak in BaseQueryContext
Key: IGNITE-16161
URL: https://issues.apache.org/jira/browse/IGNITE-16161
Project: Ignite
Issue Type: Bug
Affects Versions: 3.0.0-alpha3
Reporter: Vyacheslav Koptilin
Attachments: image-2021-12-20-14-37-02-163.png
BaseQueryContext contains a number of static fields that are used in order to
store references to internal classes. For example, BaseQueryContext.CLUSTER
which indirectly refers to ignite tables (TableImpl instances). Unfortunately,
these references are not cleared even though the corresponding ignite node is
stopped.
The following trace based on a heap dump illustrates the issue:
!image-2021-12-20-14-37-02-163.png!
This issue can be partially mitigated by clearing ring buffers in
StripedDisruptor, but the right way to fix the issue is a proper approach to
handle static collections in BaseQueryContext.
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