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Differential D18577

validation: drop maximum -dbcache
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Authored by PiRK on Sep 9 2025, 13:45.

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Reviewers
Fabien
Group Reviewers
Restricted Project
Commits
rABCd0871d7268ae: validation: drop maximum -dbcache
Summary

If the UTXO set grows, the maximum value for -dbcache may become insufficient for those who wish to complete IBD with the UTXO set held in RAM.

This drops the limit. It also adds a warning that it's up to users to check that they have enough RAM.

This is a backport of core#13676 and core#28358

Depends on D18575

Test Plan

ninja all check-all

$ src/bitcoind -dbcache=32000
...
2025-09-09T13:43:09Z * Using 31990.0 MiB for in-memory UTXO set (plus up to 286.1 MiB of unused mempool space)

Diff Detail

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rABC Bitcoin ABC
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Event Timeline

PiRK created this revision.Sep 9 2025, 13:45
Herald added a reviewer: Restricted Project. · View Herald TranscriptSep 9 2025, 13:45
PiRK requested review of this revision.Sep 9 2025, 13:45
teamcity edited the summary of this revision. (Show Details)Sep 9 2025, 13:45
PiRK edited the summary of this revision. (Show Details)Sep 9 2025, 13:46
PiRK added a parent revision: D18575: validation: don't clear cache on periodic flush.
PiRK added a child revision: D18578: doc: Correct docstring describing max block tree db cache.Sep 9 2025, 13:47
Harbormaster completed remote builds in B34356: Diff 55529.Sep 9 2025, 13:59
Fabien accepted this revision.Sep 9 2025, 14:39
This revision is now accepted and ready to land.Sep 9 2025, 14:39
Closed by commit rABCd0871d7268ae: validation: drop maximum -dbcache (authored by Sjors Provoost <sjors@sprovoost.nl>, committed by PiRK). · Explain WhySep 9 2025, 15:28
This revision was automatically updated to reflect the committed changes.
PiRK added a commit: rABCd0871d7268ae: validation: drop maximum -dbcache.
PiRK mentioned this in D18794: coins: warn on shutdown for big UTXO set flushes.Oct 14 2025, 13:12
PiRK mentioned this in rABCdfe46e814509: coins: warn on shutdown for big UTXO set flushes.Wed, Oct 15, 09:23

Revision Contents
Changeset List

PathSize
doc/
11 lines
src/
12 lines
node/
2 lines
qt/
forms/
2 lines
4 lines
2 lines

Diff 55540

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doc/release-notes.md

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src/init.cpp

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src/node/caches.cpp

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src/qt/forms/optionsdialog.ui

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src/qt/optionsdialog.cpp

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src/txdb.h

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