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Rongsong Shen 5d72133216 docs(raft-ha-core-safety): task 5.3 done (unit) + 7.2 re-attributed to bug-924 env block 
5.3 fix (bf88681) lands and is unit-validated (test_ha_core_safety 20 Tests /
0 Failures). Re-ran the 7.2 chaotic soak with all Phase-2+5.2+5.3 fixes: it
still stalls at round 4, but bisecting the frozen logs shows the cause is the
bug-924 WAL-fdatasync wedge, NOT consensus — a survivor's persist flusher spins
on `fdatasync FAILED (errno=22 EINVAL)` and stops answering PreVotes, so the
round times out (presents as an election stall, is a durability-layer wedge).

A file-level repro of the controller's exact WAL pattern (open + posix_fallocate
64MB + write + fdatasync) SUCCEEDS on every available ext4/tmpfs path, so it is
the live overlay-backed WAL fd under chaotic restart — the documented bug-924,
a Non-Goal of this spec (owned by ha-commit-durability, excluded from the
verdict).

Re-attributes the round-4 stall (the first §"Task 7.2" note guessed in_catch_up;
5.3 fixes that real latent eligibility deadlock at unit level but it is not the
soak blocker). 7.2 is now BLOCKED ON ENVIRONMENT, not a consensus NO-GO; the
consensus work this spec owns (Phase-2 payload integrity, 5.2, 5.3) is
unit-complete. research.md §"Task 5.3 + 7.2 re-run"; bug-1272 updated.

Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019dbTHR9CsEYK9RsqmQpQpC
2026-06-30 02:56:00 +00:00
.claude test(raft-ha-core-safety): client-probe soak primary-detection (task 1.5) 2026-06-27 10:12:50 +00:00
.kiro docs(raft-ha-core-safety): task 5.3 done (unit) + 7.2 re-attributed to bug-924 env block 2026-06-30 02:56:00 +00:00
.wolf docs(raft-ha-core-safety): task 5.3 done (unit) + 7.2 re-attributed to bug-924 env block 2026-06-30 02:56:00 +00:00
docs/superpowers/plans claude skills 2026-05-29 15:00:06 +08:00
ha/data chore: checkpoint all prior work for clean state 2026-06-04 13:04:16 +00:00
raft chore: checkpoint all prior work for clean state 2026-06-04 13:04:16 +00:00
src fix(raft-ha-core-safety): catching-up survivor must grant PreVote when primary gone (task 5.3) 2026-06-30 02:44:45 +00:00
.clang-format reformat code and job array 2025-11-07 16:14:27 +08:00
.gitignore checkpoint: bug-851 root cause + raft TLA+ conformance spec family 2026-06-21 14:02:15 +00:00
.mcp.json checkpoint: bug-851 root cause + raft TLA+ conformance spec family 2026-06-21 14:02:15 +00:00
.opencode.json checkpoint: bug-851 root cause + raft TLA+ conformance spec family 2026-06-21 14:02:15 +00:00
CLAUDE.md chore: baseline snapshot — prior-session work + ha-consistency-invariants spec family 2026-06-11 13:21:50 +00:00
package-lock.json checkpoint: bug-851 root cause + raft TLA+ conformance spec family 2026-06-21 14:02:15 +00:00
package.json checkpoint: bug-851 root cause + raft TLA+ conformance spec family 2026-06-21 14:02:15 +00:00
README.md save works 2026-03-03 16:49:26 +08:00
uninstall-code-review-graph.sh checkpoint: bug-851 root cause + raft TLA+ conformance spec family 2026-06-21 14:02:15 +00:00

README.md

1. commit 规则

  • 每个人 fork 自己的 branch， 从自己的 branch 做 PR，review 完再 commit

2. code format

2.1. C

推荐使用 clang-format，公共配置放在源码里面 xce/.clang-format

（理论上直接使用源码里面 xce/.clang-format 文件格式不会变）

2.1.1. vscode 可以在配置中加上如下内容

"C_Cpp.clang_format_style": "WebKit",
"C_Cpp.clang_format_fallbackStyle": "WebKit",

2.1.2. vim & emacs

clang-format -style="{BasedOnStyle: webkit}" -i XX.c

2.2. golang

使用默认 gofmt

3. build environment and build (example of ubuntu)

3.1 build environment

  • Install nix package management tool
sh <(curl -L https://nixos.org/nix/install) --daemon
  • Edit /etc/nix/nix.conf to make sure
experimental-features = nix-command flakes
sandbox = true
sandbox-fallback = false
substituters = https://mirrors.ustc.edu.cn/nix-channels/store https://cache.nixos.org https://cache.nixos.org/
trusted-users = root <your account>

make sure that you have restarted nix-daemon service after you have changed /etc/nix/nix.conf

  • Install socat and config ssh (for clone by ssh protocol)
nix profile add nixpkgs#socat

.ssh/config

Host gitea.shenrs.eu
	HostName gitea.shenrs.eu
	IdentityFile ~/.ssh/id_ed25519
	ProxyCommand socat - openssl-connect:gitea.shenrs.eu:2022,snihost=gitea.shenrs.eu,verify=0

3.2 checkout source code

3.3 build (for package and release)

cd xce/src

# for build debug version
nix build --option sandbox false .#xcecore_debug

# for normal build
nix build --option sandbox false .#xcecore

You can find the generated binaries at =result= directory

3.4 build (for daily develop)

cd xce/src
nix develop

# using meson to generated build configuration (debug and address sanitize)

meson setup build --buildtype=debug -Db_sanitize=address

# run meson to build
meson compile -C  build

# The generated files will be in build/

3.5 build AppImage package

cd xce/src
nix bundle --bundler github:ralismark/nix-appimage --option sandbox false .#xce

This will create all in one AppImage file which contains everything for package delivery.

4. misc

4.1. Windows remap ctrl and alt key

create a reg file, e.g. remapkey.reg

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout]
"Scancode Map"=hex:00,00,00,00,00,00,00,00,05,00,00,00,38,00,1d,00,1d,00,38,00,38,e0,1d,e0,1d,e0,38,e0,00,00,00,00

then double click remapkey.reg to import it. Restart OS.