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Rongsong Shen
846713ab92
bug-1562: ha_on_primary_ctrl_fd_rdhup's 5.10b debounce branch (ha.c) returned without re-arming the liveness watchdog when a debounced RDHUP landed after the in-flight PreVote round had already concluded (e.g. a lone cold-booting node whose first round loses in milliseconds with no peers up yet). That was the last timer ever scheduled -- the node froze permanently in CTRL_STANDBY, so a 3-node cluster with a long inter-node start stagger could never elect a primary. Root-caused via a live local reproduction matching the reporting user's exact timing (byte-for-byte match of their hung ctrl-1.log), fixed by re-arming the watchdog in that branch (mirroring the function's own 5.2 branch), and confirmed end-to-end: the same scenario now reaches CTRL_PRIMARY and full 3-node config convergence. bug-1563: fsync_worker's retry loop (persist.c) only backs off when no work is pending, but flusher_work_pending_locked() can't distinguish "fresh work just landed" from "still stuck from the last failed fdatasync" -- a sustained sync failure left durable_lsn permanently behind tip, so the loop skipped its wait every iteration and spun fdatasync as fast as the CPU/lock allowed (a 40-round chaotic /xce-test-ha soak hit 300k+ failed attempts on one node in under a minute). Fixed by waiting out the normal wal_sync_ms cadence when a flush was pending but made no progress, leaving the legitimate idle and just-succeeded fast paths untouched. Both fixed via TDD (RED test before the fix, GREEN after) and live-validated by re-running 40-round sequential and chaotic HA soaks end-to-end: both pass cleanly, and the chaotic run's excluded fdatasync-error count dropped from 304,689 to 0. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> |
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| .claude | ||
| .kiro | ||
| .wolf | ||
| docs/superpowers/plans | ||
| raft | ||
| reports | ||
| scripts | ||
| src | ||
| .clang-format | ||
| .gitignore | ||
| .mcp.json | ||
| .opencode.json | ||
| CLAUDE.md | ||
| 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.