禁用root用户检查
DS默认禁止root用户启动, 但在K8S中, 默认需要root启动, 所以需要禁用掉root用户检查.
// UnrealEngine/Engine/Source/Runtime/Core/Private/Unix/UnixPlatformMemory.cpp
#define UE4_DO_ROOT_PRIVILEGE_CHECK 0强制产生Core文件
当UE4 Dedicated Server crash时, 会被本进程捕获到输出堆栈到日志中, 但没有产生core文件, 但有的时候又会产生core文件.
为什么这么随机呢? 通过以下代码可知, UE_BUILD_SHIPPING模式下是不开启的, 可以通过参数-core强制打开.
// core dump policy:
// - Shipping disables it by default (unless -core is passed)
// - The rest set it to infinity unless -nocore is passed
// (in all scenarios user wish as expressed with -core or -nocore takes priority)
// Note that we used to have Test disable cores by default too. This has been changed around UE 4.15.
bool bDisableCore = (UE_BUILD_SHIPPING != 0);
if (FParse::Param(*GSavedCommandLine, TEXT("nocore")))
{
bDisableCore = true;
}
if (FParse::Param(*GSavedCommandLine, TEXT("core")))
{
bDisableCore = false;
}动态加载 GDBPrinters.py
UE提供了GDBPrinters.py 用以显示UE4的自定义容器,
但常见的教程都是修改.gdbinit文件, 但在生产服务器上, 修改配置文件会影响其他人, 可用动态加载的方法
(gdb) python
import sys
sys.path.append('/data/home/user00/')
from UE4Printers import register_ue4_printers
register_ue4_printers(None)
print("ok")
end