Category: Testing Tips

Use the below functions in Vugen to overcome this error.





Use the below functions in Vugen script to overcome this error.

web_set_sockets_option (“CLOSE_KEEPALIVE_CONNECTIONS”, “1”);
web_set_sockets_option(“OVERLAPPED_SEND”, “0”);
web_set_sockets_option(“IGNORE_PREMATURE_SHUTDOWN”, “1”);

char *date=”27 mar 2010″;
char *position;
int offset;
char *search_str[20] = {“jan”,”feb”,”mar”,”apr”,”may”,”jun”};
char *search_strvalue[20] = {“01″,”02″,”03″,”04″,”05″,”06″};
char * tokens;
char reqValue[100];
int i,j;

lr_output_message(“%s”,lr_eval_string(“New date is {date_new}”));

position = (char *)strstr(date, search_str[j]);
offset = (int)(position – date + 1);
} while (offset != 4);

tokens=(char *)strtok(lr_eval_string(“{date_new}”),” “);
while (tokens!=NULL)
strcat(reqValue, ” “);
strcat(reqValue, search_strvalue[j-1]);
strcat(reqValue, ” “);
tokens = (char *)strtok(NULL,” “);
lr_save_string(lr_eval_string(reqValue), “NewFormatDate”);

return 0;

C:\Program Files\HP\LoadRunner\bin>mmdrv.exe -usr DateFormatChange\DateFormatChange.usr

scripts should be placed inside the bin folder..

Put this code inside the action:-

char filename[1024], command[1024];
char new_dir[] = “C:\\Sample”;

/* Create a directory under root called xyz and make it the current dir */
if (mkdir(new_dir))
lr_output_message(“Create directory %s failed”, new_dir);
lr_output_message(“Created new directory %s”, new_dir);

sprintf (filename, “%s\\%s”, new_dir, “SIVA.txt”);

/* Execute a dir /b command and direct it to a new file */
sprintf (command, “dir /b c:\\ > %s /w”, filename );
lr_output_message(“Created new file %s”, filename);

return 0;

typeperf -c “\Process(*)\% Processor Time” -si 00:01 -sc 50 -f CSV -o output.csv
typeperf -q -o output1.txt

Sometimes there might be a requirement to keep some files in the LG machine for temporary use. Have the file included in the script which needs to be copied to LG machine. Use the below mentioned commands to create a temporary folder inside c:\temp folder and copy the file from script folder to newly created folder in LG machine. Once the use of file is completed, use the last command to delete the newly created folder. Char command1[]=”mkdir \”c:\\temp\\\ext_jar”;

Char command2[]=”xcopy /Y filename.pdf \”c:\\temp\\\ext_jar\””;

Char command3[]=”RD /S /Q \”c:\\temp\\\ext_jar\””;





IP Spoofing in Loadrunner

IP Spoofing

It is a technique used for creating Internet Protocol (IP) packets with a forged source IP address, with the purpose of hiding the identity of the sender address.

IP Spoofing in Loadrunner

This technique is used in Loadrunner Agent machines, in order to make the Application server to think requests are coming from different machines. This purposely used in the Load Balancing Application servers which runs on the IP based distribution.

Procedures to configure the IP Spoofing in Loadrunner

Step 01: Get the required number of static IPs (based on number of vusers to be executed) from the Network Administrator, which should have the same ‘Default gateway’ of the LG machine.

Step 02: Follow the IP wizard in the LG machine and do the setup by adding the required number of Static IPs.

Step 03: After finishing the configuration setup, try pinging one of the static IP. It should not get ‘Timed Out’ error.

Step 04: Now we are ready to do the execution with Controller. While creating the scenario, enable the ‘IP Spoofing’ option in the LG machine.

This should work. If any issues, comment to reach me. Thanks.

Inorder to start scripting the SAP applications using the Loadrunner tool, we have to enable the scripting mode available in the SAP application apart from the normal script enabling setting.

Please use the TCode – RZ11

Navigate to the page it allows and change the settings to ‘FALSE’ for the below mentioned parameters.

a. sapgui/user_scripting_set_readonly and set the value as “FALSE”
b. sapgui/user_scripting_force_notification and set the value as “FALSE”


In Loadrunner script, we use block size per vuser for using the huge range of unique values in a parameter. But during the test, if the execution failes inbetween its very hard to re-allocate the block size again by checking the unused values. In-order to solve this issue, we can use the LR_ADVANCE_PARAM function in loadrunner. Please find below the usage format to implement this.

int x,y,v,i;  // declare these variables as integer
v=atoi(lr_eval_string(“{VuserID}”));  // get the VuserID and store it in v
i=atoi(lr_eval_string(“{ItNum}”));  // get the Iteration number and store it in i
 x=v;  // For the first iteration, x = VuserID
 x=6;  // For the second iterations onward, x = No of Vusers  + 1 (assuming Vusers = 5)
lr_advance_param(“CreatedCustID”);  // parameter file name (keep settings as Sequential Once)



return 0;