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Add store-gateway max series bytes to protect from oomkill#7271

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eeldaly wants to merge 7 commits intocortexproject:masterfrom
eeldaly:master
Open

Add store-gateway max series bytes to protect from oomkill#7271
eeldaly wants to merge 7 commits intocortexproject:masterfrom
eeldaly:master

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@eeldaly
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@eeldaly eeldaly commented Feb 17, 2026

What this PR does:
Adds tracking for how many series bytes are being processed by store-gateway as well as an optional limit (retryable in querier) to cancel current queries, returning an error when trying to reserve more bytes. This is a built as a last resort measure to prevent/reduce store-gateway oomkills.

Which issue(s) this PR fixes:

Checklist

  • Tests updated
  • Documentation added
  • CHANGELOG.md updated - the order of entries should be [CHANGE], [FEATURE], [ENHANCEMENT], [BUGFIX]

… to prevent oomkill

Signed-off-by: Essam Eldaly <eeldaly@amazon.com>
Signed-off-by: Essam Eldaly <eeldaly@amazon.com>
Signed-off-by: Essam Eldaly <eeldaly@amazon.com>
Signed-off-by: Essam Eldaly <eeldaly@amazon.com>
Signed-off-by: Essam Eldaly <eeldaly@amazon.com>
Signed-off-by: Essam Eldaly <eeldaly@amazon.com>
Signed-off-by: Essam Eldaly <eeldaly@amazon.com>
@eeldaly eeldaly marked this pull request as ready for review February 20, 2026 23:24
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dosubot bot commented Feb 20, 2026

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