LOG(WARNING)<<"your 'limit -n ' of "<<old_limit<<" is not enough for Redis to start. pika have successfully reconfig it to "<<limit.rlim_cur;
}else{
LOG(FATAL)<<"your 'limit -n ' of "<<old_limit<<" is not enough for Redis to start. pika can not reconfig it("<<strerror(errno)<<"), do it by yourself";