Released memory retained by ExchangeSource#11097
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losipiuk merged 1 commit intotrinodb:masterfrom Feb 22, 2022
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Why is this check needed? systemMemoryContext.setBytes(0); will always be executed in the finally block of close(), right?
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Yes, but pollPage and close can be called concurrently. It is possible that close will set the memory reservation to 0 while the pollPage will reset it back to a non zero value
linzebing
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Typo in commit message "Released" -> "Release" |
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There two separate issues here. One improving GC and another is ensuring memory pool accounting is fine. It would be nice to have separated commits for them.
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CI: #11140 |
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CI: #4936 |
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Description
Avoid retaining memory used by ExchangeSource more than necessary
Improvement
Core engine
Non user visible improvement
Related issues, pull requests, and links
Documentation
(x) No documentation is needed.
( ) Sufficient documentation is included in this PR.
( ) Documentation PR is available with #prnumber.
( ) Documentation issue #issuenumber is filed, and can be handled later.
Release notes
(x) No release notes entries required.
( ) Release notes entries required with the following suggested text: