Loadrunner 在controller中运行socket脚本时报错：Abnormal termination, caused by mdrv process termination 的原因和解决方法

原因：

网上给出的可能的原因大致有两个：

1.  压力负载机器的资源不足（CPU，内存）

2.  分配内存和释放内存的语句不匹配。

并给出了一些解决方案，最开始我以为是加了IP地址的原因，不断尝试增加IP，减少IP, 还是没有解决。又尝试添加工作机为load generator （压力负载机是通过VPN连接的），发现连接不上，只好放弃。 怀疑是开发人员做了代码改动，但是把服务端日志取下来看，日志和之前能正常运行场景时产生的日志并无二致。 于是又尝试修改vuser的运行方式，在进程和线程间切换。问题依旧存在。只能说前次正常运行场景纯属巧合了。

后来仔细查看代码，发现socket的分配内存和释放内存的语句须要匹配使用。

原来的代码：

#include "lrs.h"

Action()

{

                char *Data=(char*) malloc(512,sizeof(char));

                int Size=0;

                int rc=0;

                int receive_code;

                memset(Data,0,strlen(Data));              

                rc=lrs_create_socket("socket0","TCP","RemoteHost=10.100.200.100:22108",LrsLastArg);

                if (0==rc) {

                                lr_output_message("Socket was successfully created ");

                }

                else

                {

                                lr_output_message("An error occurred while creating the socket, Error Code: %d",rc);

                }

                lr_start_transaction("POS_80_trans");

                lrs_send("socket0","buf0",LrsLastArg); //Íù"socket0"·¢ËÍ"buf0"ÖеÄÊý¾Ý

                lrs_disable_socket("socket0", DISABLE_SEND);

                receive_code=lrs_receive("socket0","buf1",LrsLastArg);             

                lrs_get_last_received_buffer("socket0",&Data,&Size);

                lrs_free_buffer(Data);

                lr_end_transaction("POS_80_trans",LR_AUTO);

                 lrs_close_socket("socket0");

    return 0;

}

修改后的代码（修改后的代码用红色字体表示）：

#include "lrs.h"

Action()

{

                //char *Data=(char*) malloc(512,sizeof(char));

                char *Data;

                int NumberofBytes=512;

                int Size=0;

                int rc=0;

                int receive_code;

                //memset(Data,0,strlen(Data));

                lrs_get_buffer_by_name("buf1",&Data,&NumberofBytes);              

                rc=lrs_create_socket("socket0","TCP","RemoteHost=10.100.200.100:22108",LrsLastArg);

                if (0==rc) {

                                lr_output_message("Socket was successfully created ");

                }

                else

                {

                                lr_output_message("An error occurred while creating the socket, Error Code: %d",rc);

                }

                lr_start_transaction("POS_80_trans");

                lrs_send("socket0","buf0",LrsLastArg); //Íù"socket0"·¢ËÍ"buf0"ÖеÄÊý¾Ý

                lrs_disable_socket("socket0", DISABLE_SEND);

                receive_code=lrs_receive("socket0","buf1",LrsLastArg);

                lrs_get_last_received_buffer("socket0",&Data,&Size);

                lrs_free_buffer(Data);

                lr_end_transaction("POS_80_trans",LR_AUTO);

                 lrs_close_socket("socket0");

    return 0;

}