pg_crash

向数据库进程随机发送信号模拟故障

概览

扩展包名	版本	分类	许可证	语言
`pg_crash`	`1.0`	ADMIN	BSD-3-Clause	C

ID	扩展名	Bin	Lib	Load	Create	Trust	Reloc	模式
5210	`pg_crash`	否	是	是	否	否	否	-

相关扩展	`pg_dirtyread` `pg_savior` `pg_cheat_funcs`

版本

类型	仓库	版本	PG 大版本	包名	依赖
EXT	PIGSTY	`1.0`	1817161514	`pg_crash`	-
RPM	PIGSTY	`1.0`	1817161514	`pg_crash_$v`	-
DEB	PIGSTY	`1.0`	1817161514	`postgresql-$v-pg-crash`	-

OS / PG	PG18	PG17	PG16	PG15	PG14
el8.x86_64	PIGSTY 1.0 el8.x86_64.pg18 : pg_crash_18 pg_crash_18-1.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el8.x86_64.pg17 : pg_crash_17 pg_crash_17-1.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el8.x86_64.pg16 : pg_crash_16 pg_crash_16-1.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el8.x86_64.pg15 : pg_crash_15 pg_crash_15-1.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el8.x86_64.pg14 : pg_crash_14 pg_crash_14-1.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 1.0 · 13.0KiB
el8.aarch64	PIGSTY 1.0 el8.aarch64.pg18 : pg_crash_18 pg_crash_18-1.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 1.0 · 13.2KiB	PIGSTY 1.0 el8.aarch64.pg17 : pg_crash_17 pg_crash_17-1.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 1.0 · 13.2KiB	PIGSTY 1.0 el8.aarch64.pg16 : pg_crash_16 pg_crash_16-1.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 1.0 · 13.2KiB	PIGSTY 1.0 el8.aarch64.pg15 : pg_crash_15 pg_crash_15-1.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 1.0 · 13.2KiB	PIGSTY 1.0 el8.aarch64.pg14 : pg_crash_14 pg_crash_14-1.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 1.0 · 13.2KiB
el9.x86_64	PIGSTY 1.0 el9.x86_64.pg18 : pg_crash_18 pg_crash_18-1.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el9.x86_64.pg17 : pg_crash_17 pg_crash_17-1.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el9.x86_64.pg16 : pg_crash_16 pg_crash_16-1.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el9.x86_64.pg15 : pg_crash_15 pg_crash_15-1.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el9.x86_64.pg14 : pg_crash_14 pg_crash_14-1.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 1.0 · 13.0KiB
el9.aarch64	PIGSTY 1.0 el9.aarch64.pg18 : pg_crash_18 pg_crash_18-1.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 1.0 · 12.9KiB	PIGSTY 1.0 el9.aarch64.pg17 : pg_crash_17 pg_crash_17-1.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el9.aarch64.pg16 : pg_crash_16 pg_crash_16-1.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el9.aarch64.pg15 : pg_crash_15 pg_crash_15-1.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el9.aarch64.pg14 : pg_crash_14 pg_crash_14-1.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 1.0 · 13.0KiB
el10.x86_64	PIGSTY 1.0 el10.x86_64.pg18 : pg_crash_18 pg_crash_18-1.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el10.x86_64.pg17 : pg_crash_17 pg_crash_17-1.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el10.x86_64.pg16 : pg_crash_16 pg_crash_16-1.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el10.x86_64.pg15 : pg_crash_15 pg_crash_15-1.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 1.0 · 13.0KiB	PIGSTY 1.0 el10.x86_64.pg14 : pg_crash_14 pg_crash_14-1.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 1.0 · 13.0KiB
el10.aarch64	PIGSTY 1.0 el10.aarch64.pg18 : pg_crash_18 pg_crash_18-1.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 1.0 · 13.2KiB	PIGSTY 1.0 el10.aarch64.pg17 : pg_crash_17 pg_crash_17-1.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 1.0 · 13.2KiB	PIGSTY 1.0 el10.aarch64.pg16 : pg_crash_16 pg_crash_16-1.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 1.0 · 13.1KiB	PIGSTY 1.0 el10.aarch64.pg15 : pg_crash_15 pg_crash_15-1.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 1.0 · 13.2KiB	PIGSTY 1.0 el10.aarch64.pg14 : pg_crash_14 pg_crash_14-1.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 1.0 · 13.2KiB
d12.x86_64	PGDG 0.3 d12.x86_64.pg18 : postgresql-18-pg-crash postgresql-18-pg-crash_0.3-2.pgdg12+1_amd64.deb PGDG · 0.3 · 12.7KiB	PIGSTY 1.0 d12.x86_64.pg17 : postgresql-17-pg-crash postgresql-17-pg-crash_1.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 1.0 · 12.8KiB postgresql-17-pg-crash_0.3-2.pgdg12+1_amd64.deb PGDG · 0.3 · 12.7KiB	PIGSTY 1.0 d12.x86_64.pg16 : postgresql-16-pg-crash postgresql-16-pg-crash_1.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 1.0 · 12.8KiB postgresql-16-pg-crash_0.3-2.pgdg12+1_amd64.deb PGDG · 0.3 · 12.7KiB	PIGSTY 1.0 d12.x86_64.pg15 : postgresql-15-pg-crash postgresql-15-pg-crash_1.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 1.0 · 12.9KiB postgresql-15-pg-crash_0.3-2.pgdg12+1_amd64.deb PGDG · 0.3 · 12.7KiB	PIGSTY 1.0 d12.x86_64.pg14 : postgresql-14-pg-crash postgresql-14-pg-crash_1.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 1.0 · 12.8KiB postgresql-14-pg-crash_0.3-2.pgdg12+1_amd64.deb PGDG · 0.3 · 12.7KiB
d12.aarch64	PGDG 0.3 d12.aarch64.pg18 : postgresql-18-pg-crash postgresql-18-pg-crash_0.3-2.pgdg12+1_arm64.deb PGDG · 0.3 · 12.8KiB	PIGSTY 1.0 d12.aarch64.pg17 : postgresql-17-pg-crash postgresql-17-pg-crash_1.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 1.0 · 12.9KiB postgresql-17-pg-crash_0.3-2.pgdg12+1_arm64.deb PGDG · 0.3 · 12.8KiB	PIGSTY 1.0 d12.aarch64.pg16 : postgresql-16-pg-crash postgresql-16-pg-crash_1.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 1.0 · 12.9KiB postgresql-16-pg-crash_0.3-2.pgdg12+1_arm64.deb PGDG · 0.3 · 12.9KiB	PIGSTY 1.0 d12.aarch64.pg15 : postgresql-15-pg-crash postgresql-15-pg-crash_1.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 1.0 · 12.9KiB postgresql-15-pg-crash_0.3-2.pgdg12+1_arm64.deb PGDG · 0.3 · 12.8KiB	PIGSTY 1.0 d12.aarch64.pg14 : postgresql-14-pg-crash postgresql-14-pg-crash_1.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 1.0 · 12.9KiB postgresql-14-pg-crash_0.3-2.pgdg12+1_arm64.deb PGDG · 0.3 · 12.8KiB
d13.x86_64	PGDG 0.3 d13.x86_64.pg18 : postgresql-18-pg-crash postgresql-18-pg-crash_0.3-2.pgdg13+1_amd64.deb PGDG · 0.3 · 12.8KiB	PGDG 0.3 d13.x86_64.pg17 : postgresql-17-pg-crash postgresql-17-pg-crash_0.3-2.pgdg13+1_amd64.deb PGDG · 0.3 · 12.8KiB	PGDG 0.3 d13.x86_64.pg16 : postgresql-16-pg-crash postgresql-16-pg-crash_0.3-2.pgdg13+1_amd64.deb PGDG · 0.3 · 12.8KiB	PGDG 0.3 d13.x86_64.pg15 : postgresql-15-pg-crash postgresql-15-pg-crash_0.3-2.pgdg13+1_amd64.deb PGDG · 0.3 · 12.8KiB	PGDG 0.3 d13.x86_64.pg14 : postgresql-14-pg-crash postgresql-14-pg-crash_0.3-2.pgdg13+1_amd64.deb PGDG · 0.3 · 12.8KiB
d13.aarch64	PGDG 0.3 d13.aarch64.pg18 : postgresql-18-pg-crash postgresql-18-pg-crash_0.3-2.pgdg13+1_arm64.deb PGDG · 0.3 · 13.0KiB	PGDG 0.3 d13.aarch64.pg17 : postgresql-17-pg-crash postgresql-17-pg-crash_0.3-2.pgdg13+1_arm64.deb PGDG · 0.3 · 12.9KiB	PGDG 0.3 d13.aarch64.pg16 : postgresql-16-pg-crash postgresql-16-pg-crash_0.3-2.pgdg13+1_arm64.deb PGDG · 0.3 · 13.0KiB	PGDG 0.3 d13.aarch64.pg15 : postgresql-15-pg-crash postgresql-15-pg-crash_0.3-2.pgdg13+1_arm64.deb PGDG · 0.3 · 13.0KiB	PGDG 0.3 d13.aarch64.pg14 : postgresql-14-pg-crash postgresql-14-pg-crash_0.3-2.pgdg13+1_arm64.deb PGDG · 0.3 · 13.0KiB
u22.x86_64	PGDG 0.3 u22.x86_64.pg18 : postgresql-18-pg-crash postgresql-18-pg-crash_0.3-2.pgdg22.04+1_amd64.deb PGDG · 0.3 · 12.7KiB	PIGSTY 1.0 u22.x86_64.pg17 : postgresql-17-pg-crash postgresql-17-pg-crash_1.0-1PIGSTY~jammy_amd64.deb PIGSTY · 1.0 · 13.2KiB postgresql-17-pg-crash_0.3-2.pgdg22.04+1_amd64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u22.x86_64.pg16 : postgresql-16-pg-crash postgresql-16-pg-crash_1.0-1PIGSTY~jammy_amd64.deb PIGSTY · 1.0 · 13.2KiB postgresql-16-pg-crash_0.3-2.pgdg22.04+1_amd64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u22.x86_64.pg15 : postgresql-15-pg-crash postgresql-15-pg-crash_1.0-1PIGSTY~jammy_amd64.deb PIGSTY · 1.0 · 13.2KiB postgresql-15-pg-crash_0.3-2.pgdg22.04+1_amd64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u22.x86_64.pg14 : postgresql-14-pg-crash postgresql-14-pg-crash_1.0-1PIGSTY~jammy_amd64.deb PIGSTY · 1.0 · 13.2KiB postgresql-14-pg-crash_0.3-2.pgdg22.04+1_amd64.deb PGDG · 0.3 · 13.0KiB
u22.aarch64	PGDG 0.3 u22.aarch64.pg18 : postgresql-18-pg-crash postgresql-18-pg-crash_0.3-2.pgdg22.04+1_arm64.deb PGDG · 0.3 · 12.8KiB	PIGSTY 1.0 u22.aarch64.pg17 : postgresql-17-pg-crash postgresql-17-pg-crash_1.0-1PIGSTY~jammy_arm64.deb PIGSTY · 1.0 · 13.4KiB postgresql-17-pg-crash_0.3-2.pgdg22.04+1_arm64.deb PGDG · 0.3 · 13.1KiB	PIGSTY 1.0 u22.aarch64.pg16 : postgresql-16-pg-crash postgresql-16-pg-crash_1.0-1PIGSTY~jammy_arm64.deb PIGSTY · 1.0 · 13.4KiB postgresql-16-pg-crash_0.3-2.pgdg22.04+1_arm64.deb PGDG · 0.3 · 13.1KiB	PIGSTY 1.0 u22.aarch64.pg15 : postgresql-15-pg-crash postgresql-15-pg-crash_1.0-1PIGSTY~jammy_arm64.deb PIGSTY · 1.0 · 13.4KiB postgresql-15-pg-crash_0.3-2.pgdg22.04+1_arm64.deb PGDG · 0.3 · 13.1KiB	PIGSTY 1.0 u22.aarch64.pg14 : postgresql-14-pg-crash postgresql-14-pg-crash_1.0-1PIGSTY~jammy_arm64.deb PIGSTY · 1.0 · 13.4KiB postgresql-14-pg-crash_0.3-2.pgdg22.04+1_arm64.deb PGDG · 0.3 · 13.1KiB
u24.x86_64	PGDG 0.3 u24.x86_64.pg18 : postgresql-18-pg-crash postgresql-18-pg-crash_0.3-2.pgdg24.04+1_amd64.deb PGDG · 0.3 · 12.8KiB	PIGSTY 1.0 u24.x86_64.pg17 : postgresql-17-pg-crash postgresql-17-pg-crash_1.0-1PIGSTY~noble_amd64.deb PIGSTY · 1.0 · 13.0KiB postgresql-17-pg-crash_0.3-2.pgdg24.04+1_amd64.deb PGDG · 0.3 · 12.8KiB	PIGSTY 1.0 u24.x86_64.pg16 : postgresql-16-pg-crash postgresql-16-pg-crash_1.0-1PIGSTY~noble_amd64.deb PIGSTY · 1.0 · 13.0KiB postgresql-16-pg-crash_0.3-2.pgdg24.04+1_amd64.deb PGDG · 0.3 · 12.9KiB	PIGSTY 1.0 u24.x86_64.pg15 : postgresql-15-pg-crash postgresql-15-pg-crash_1.0-1PIGSTY~noble_amd64.deb PIGSTY · 1.0 · 13.0KiB postgresql-15-pg-crash_0.3-2.pgdg24.04+1_amd64.deb PGDG · 0.3 · 12.9KiB	PIGSTY 1.0 u24.x86_64.pg14 : postgresql-14-pg-crash postgresql-14-pg-crash_1.0-1PIGSTY~noble_amd64.deb PIGSTY · 1.0 · 13.0KiB postgresql-14-pg-crash_0.3-2.pgdg24.04+1_amd64.deb PGDG · 0.3 · 12.8KiB
u24.aarch64	PGDG 0.3 u24.aarch64.pg18 : postgresql-18-pg-crash postgresql-18-pg-crash_0.3-2.pgdg24.04+1_arm64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u24.aarch64.pg17 : postgresql-17-pg-crash postgresql-17-pg-crash_1.0-1PIGSTY~noble_arm64.deb PIGSTY · 1.0 · 13.0KiB postgresql-17-pg-crash_0.3-2.pgdg24.04+1_arm64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u24.aarch64.pg16 : postgresql-16-pg-crash postgresql-16-pg-crash_1.0-1PIGSTY~noble_arm64.deb PIGSTY · 1.0 · 13.0KiB postgresql-16-pg-crash_0.3-2.pgdg24.04+1_arm64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u24.aarch64.pg15 : postgresql-15-pg-crash postgresql-15-pg-crash_1.0-1PIGSTY~noble_arm64.deb PIGSTY · 1.0 · 13.0KiB postgresql-15-pg-crash_0.3-2.pgdg24.04+1_arm64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u24.aarch64.pg14 : postgresql-14-pg-crash postgresql-14-pg-crash_1.0-1PIGSTY~noble_arm64.deb PIGSTY · 1.0 · 13.0KiB postgresql-14-pg-crash_0.3-2.pgdg24.04+1_arm64.deb PGDG · 0.3 · 13.0KiB
u26.x86_64	PIGSTY 1.0 u26.x86_64.pg18 : postgresql-18-pg-crash postgresql-18-pg-crash_1.0-1PIGSTY~resolute_amd64.deb PIGSTY · 1.0 · 13.2KiB postgresql-18-pg-crash_0.3-2.pgdg26.04+1_amd64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u26.x86_64.pg17 : postgresql-17-pg-crash postgresql-17-pg-crash_1.0-1PIGSTY~resolute_amd64.deb PIGSTY · 1.0 · 13.3KiB postgresql-17-pg-crash_0.3-2.pgdg26.04+1_amd64.deb PGDG · 0.3 · 13.1KiB	PIGSTY 1.0 u26.x86_64.pg16 : postgresql-16-pg-crash postgresql-16-pg-crash_1.0-1PIGSTY~resolute_amd64.deb PIGSTY · 1.0 · 13.3KiB postgresql-16-pg-crash_0.3-2.pgdg26.04+1_amd64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u26.x86_64.pg15 : postgresql-15-pg-crash postgresql-15-pg-crash_1.0-1PIGSTY~resolute_amd64.deb PIGSTY · 1.0 · 13.3KiB postgresql-15-pg-crash_0.3-2.pgdg26.04+1_amd64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u26.x86_64.pg14 : postgresql-14-pg-crash postgresql-14-pg-crash_1.0-1PIGSTY~resolute_amd64.deb PIGSTY · 1.0 · 13.3KiB postgresql-14-pg-crash_0.3-2.pgdg26.04+1_amd64.deb PGDG · 0.3 · 13.0KiB
u26.aarch64	PIGSTY 1.0 u26.aarch64.pg18 : postgresql-18-pg-crash postgresql-18-pg-crash_1.0-1PIGSTY~resolute_arm64.deb PIGSTY · 1.0 · 13.2KiB postgresql-18-pg-crash_0.3-2.pgdg26.04+1_arm64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u26.aarch64.pg17 : postgresql-17-pg-crash postgresql-17-pg-crash_1.0-1PIGSTY~resolute_arm64.deb PIGSTY · 1.0 · 13.2KiB postgresql-17-pg-crash_0.3-2.pgdg26.04+1_arm64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u26.aarch64.pg16 : postgresql-16-pg-crash postgresql-16-pg-crash_1.0-1PIGSTY~resolute_arm64.deb PIGSTY · 1.0 · 13.2KiB postgresql-16-pg-crash_0.3-2.pgdg26.04+1_arm64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u26.aarch64.pg15 : postgresql-15-pg-crash postgresql-15-pg-crash_1.0-1PIGSTY~resolute_arm64.deb PIGSTY · 1.0 · 13.2KiB postgresql-15-pg-crash_0.3-2.pgdg26.04+1_arm64.deb PGDG · 0.3 · 13.0KiB	PIGSTY 1.0 u26.aarch64.pg14 : postgresql-14-pg-crash postgresql-14-pg-crash_1.0-1PIGSTY~resolute_arm64.deb PIGSTY · 1.0 · 13.2KiB postgresql-14-pg-crash_0.3-2.pgdg26.04+1_arm64.deb PGDG · 0.3 · 13.0KiB

构建

您可以使用 pig build 命令构建 pg_crash 扩展的 RPM / DEB 包：

BASH

pig build pkg pg_crash         # 构建 RPM / DEB 包

安装

您可以直接安装 pg_crash 扩展包的预置二进制包，首先确保 PGDG 和 PIGSTY 仓库已经添加并启用：

BASH

pig repo add pgsql -u          # 添加仓库并更新缓存

使用 pig 或者是 apt/yum/dnf 安装扩展：

安装

BASH

pig install pg_crash;          # 当前活跃 PG 版本安装

pig

BASH

pig ext install -y pg_crash -v 18  # PG 18
pig ext install -y pg_crash -v 17  # PG 17
pig ext install -y pg_crash -v 16  # PG 16
pig ext install -y pg_crash -v 15  # PG 15
pig ext install -y pg_crash -v 14  # PG 14

dnf

BASH

dnf install -y pg_crash_18       # PG 18
dnf install -y pg_crash_17       # PG 17
dnf install -y pg_crash_16       # PG 16
dnf install -y pg_crash_15       # PG 15
dnf install -y pg_crash_14       # PG 14

apt

BASH

apt install -y postgresql-18-pg-crash   # PG 18
apt install -y postgresql-17-pg-crash   # PG 17
apt install -y postgresql-16-pg-crash   # PG 16
apt install -y postgresql-15-pg-crash   # PG 15
apt install -y postgresql-14-pg-crash   # PG 14

预加载配置：

BASH

shared_preload_libraries = 'pg_crash';

用法

pg_crash: 向随机进程发送随机信号

pg_crash 是一个混沌工程扩展，定期向 PostgreSQL 后端进程发送 kill 信号，适用于高可用和故障转移测试。必须添加到 shared_preload_libraries 中。

配置

添加到 postgresql.conf：

shared_preload_libraries = 'pg_crash'

# 要发送的 POSIX 信号（空格分隔）
crash.signals = '1 2 3'

# 发送信号之间的延迟秒数
crash.delay = 30

信号参考

常用 POSIX 信号：1（SIGHUP）、2（SIGINT）、3（SIGQUIT）、9（SIGKILL）、15（SIGTERM）。

配置后重启服务器。后台工作进程将按照指定的间隔定期向随机后端进程发送配置的信号。

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