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Merge bitcoin/bitcoin#31534: coins: warn on shutdown for big UTXO set flushes
5709718b83 coins: warn on shutdown for big UTXO set flushes (Lőrinc)

Pull request description:

  Split out of https://github.com/bitcoin/bitcoin/pull/30611#issuecomment-2549027130

  Setting a large `-dbcache` size postpones the index writes until the coins cache size exceeds the specified limit. This causes the final flush after manual termination to seemingly hang forever (e.g. tens of minutes for 20 GiB); Now that the `dbcache` upper cap has been lifted, this will become even more apparent, so a warning will be shown when large UTXO sets are flushed (currently >1 GiB), such as:
  > 2024-12-18T18:25:03Z Flushed fee estimates to fee_estimates.dat.
  > 2024-12-18T18:25:03Z [warning] Flushing large (1 GiB) UTXO set to disk, it may take several minutes
  > 2024-12-18T18:25:09Z Shutdown: done

  ---

  You can reproduce it by starting `bitcoind` with a large `-dbcache`:
  > mkdir demo  && cmake -B build -DCMAKE_BUILD_TYPE=Release && cmake --build build -j$(nproc) && build/src/bitcoind -datadir=demo **-dbcache=10000**

  Waiting until the used memory is over 1 GiB
  > 2024-12-18T18:25:02Z UpdateTip: [...] progress=0.069009 cache=**1181.1MiB**(8827981txo)

  And cancelling the process from the terminal:
  > ^C2024-12-18T18:25:03Z tor: Thread interrupt
  > [...]
  > 2024-12-18T18:25:03Z **[warning] Flushing large (1 GiB) UTXO set to disk, it may take several minutes*

ACKs for top commit:
  sipa:
    utACK 5709718b83
  tdb3:
    re ACK 5709718b83
  1440000bytes:
    ACK 5709718b83
  danielabrozzoni:
    tACK 5709718b83

Tree-SHA512: 608cf797de788501ccb2986508c155f5660c5f6f7a414524bfcc2820cfa9ebe3da558d13f2317d1f121a82d49ffe1e711a1152c743c22dab9f9807363f4ed8d5
2024-12-27 09:54:11 -05:00
.github ci, macos: Install pkgconf Homebrew's package 2024-12-01 10:58:15 +00:00
.tx qt: Bump Transifex slug for 28.x 2024-07-30 16:14:19 +01:00
ci ci: Bump centos gcc 2024-12-12 09:39:17 +01:00
cmake Merge bitcoin/bitcoin#31231: cmake: Fix IF_CHECK_PASSED option handling 2024-12-06 10:15:56 +00:00
contrib guix: disable timezone tools & profiling in glibc 2024-12-18 13:30:24 +00:00
depends Merge bitcoin/bitcoin#31502: depends: Fix CXXFLAGS on NetBSD 2024-12-17 10:55:53 +00:00
doc doc: Install py3-zmq port on OpenBSD for interface_zmq.py 2024-12-18 19:48:03 +00:00
share build: Rename PACKAGE_* variables to CLIENT_* 2024-10-28 12:35:55 +00:00
src Merge bitcoin/bitcoin#31534: coins: warn on shutdown for big UTXO set flushes 2024-12-27 09:54:11 -05:00
test Merge bitcoin/bitcoin#28521: net, net_processing: additional and consistent disconnect logging 2024-12-27 09:09:29 -05:00
.cirrus.yml ci: Skip broken Wine64 tests by default 2024-11-13 18:38:24 +01:00
.editorconfig code style: update .editorconfig file 2024-09-13 17:55:10 +02:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore build: Remove Autotools-based build system 2024-08-30 21:31:39 +01:00
.python-version Bump python minimum supported version to 3.10 2024-08-28 15:53:07 +02:00
.style.yapf Update .style.yapf 2023-06-01 23:35:10 +05:30
CMakeLists.txt build: use -mbig-obj for mingw-w64 Debug builds 2024-12-13 14:44:30 +00:00
CMakePresets.json cmake: Remove unused BUILD_TESTING variable from "dev-mode" preset 2024-12-19 22:25:11 +00:00
CONTRIBUTING.md doc: remove PR Review Club frequency 2024-11-20 11:16:39 +01:00
COPYING doc: upgrade Bitcoin Core license to 2024 2024-01-10 16:29:01 -06:00
INSTALL.md doc: Added hyperlink for doc/build 2021-09-09 19:53:12 +05:30
libbitcoinkernel.pc.in build: Rename PACKAGE_* variables to CLIENT_* 2024-10-28 12:35:55 +00:00
README.md doc: cmake: prepend and explain "build/" where needed 2024-10-11 11:24:21 -06:00
SECURITY.md Update security.md contact for achow101 2023-12-14 18:14:54 -05:00
vcpkg.json Remove wallet::ParseISO8601DateTime, use ParseISO8601DateTime instead 2024-12-02 15:09:31 +01:00

Bitcoin Core integration/staging tree

https://bitcoincore.org

For an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/.

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Further information about Bitcoin Core is available in the doc folder.

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