AIX内存分配的Redis

Question

我使用gcc在AIX6.1PPC系统中编译了Redis 3.0.6，但是当数据库试图超过2GB的RAM时，它就崩溃了。

编译器标志和环境变量是：

alias make="gmake"

export CC=gcc
export CFLAGS="-DAIX64 -DBIT64 -maix64 -D_AIX -D_AIX53 -D_AIX61 -I/opt/freeware/include -I/usr/include${CFLAGS_XTRA}"
export CXX=g++
export CXXFLAGS=$CFLAGS
export LDFLAGS="-DAIX64 -DBIT64 -maix64 -L/opt/freeware/lib64 -L/opt/freeware/lib -Wl,-blibpath:/opt/freeware/lib64:/opt/freeware/lib/pthread/ppc64:/opt/freeware/lib:/usr/lib:/lib,-bmaxdata:0x80000000"

export AR="ar -X64"
export LIBPATH=.:/opt/freeware/lib64:/opt/freeware/lib:/usr/lib:/lib
export OBJECT_MODE=64
echo Gcc environment variables \(CC,CFLAGS,LDFLAGS,LIBPATH,etc\) are set.

但是，当它达到2GB的RAM时，它会使用以下日志崩溃：

41680910:M 12 Jan 12:46:13.056 # Out Of Memory allocating 102709 bytes! 
41680910:M 12 Jan 12:46:13.056 # === REDIS BUG REPORT START: Cut & paste starting from here === 
41680910:M 12 Jan 12:46:13.056 # ------------------------------------------------ 
41680910:M 12 Jan 12:46:13.056 # !!! Software Failure. Press left mouse button to continue
41680910:M 12 Jan 12:46:13.057 # Guru Meditation: "Redis aborting for OUT OF MEMORY" #redis.c:3572 
41680910:M 12 Jan 12:46:13.057 # ------------------------------------------------

它也会崩溃，我试着执行

redis-server --test-memory 2048

但如果我执行

redis-server --test-memory 2047

所以很明显，它必须有一个2GB的限制，我找不到。

有什么想法或进一步的信息需要吗？

Answer 1

试着省略-bmaxdata:0x80000000。在64位构建时，此参数将堆大小限制为2GB。在32位构建时，它将将低缺省值提高到2GB。