Extrares in Loadrunner

Extrares in Loadrunner which generates while recording WEB-HTTP/HTML protocol applications i.e web applications. Extrares records all available resources for each and every particular web url for example http://www.wikishown.com. We will see Extrares with examples and how it impact the response time of your web applications.

Extrares in Loadrunner

What is Extrares in Loadrunner,While generating or recording the test scripts in VUGen (Virtual User Generator) records each and every web url and in order to load that particular url it will check what are the extra files are associated with particular web url. As Extrares loads see below recorded code for more information.

web_url("wikishown", 
 "URL=http://www.wikishown.com", 
 "Resource=0", 
 "RecContentType=text/html", 
 "Referer=", 
 "Snapshot=t8.inf", 
 "Mode=HTML", 
 EXTRARES, 
 "Url=images/bb_h_img2.jpg", ENDITEM, 
 "Url=images/bb_h_img1.jpg", ENDITEM, 
 "Url=images/bb_h_img3.jpg", ENDITEM, 
 "Url=images/loadingAnimation.gif", ENDITEM, 
 "Url=../favicon.ico", "Referer=", ENDITEM, 
 LAST);

EXTRARES recording all available images,java-script,j query, css files before loading the particular URL or pages in Virtual User Generator and while executing the Action first of all it will load all available resources i.e images,css etc files then it move to next step for execution,Here you will face problems for downloading resources because some time VUGen takes more time ,some time takes less times.

What should do in case Timeout for downloading resources

You can take below following below steps in order to overcome the problems,those are

1.Comment the EXTRARES in the script.
2.Increase Step download Timeout(Sec).
3.You can use web_set_timeout() function.

In case EXTRARES are commented while executing the Test script then it is not possible to estimate or calculate average response time for application transactions.It will look like below with comments.As per below script EXTRARES will not load and it will execute the step successfully.

web_url("wikishown", 
 "URL=http://www.wikishown.com", 
 "Resource=0", 
 "RecContentType=text/html", 
 "Referer=", 
 "Snapshot=t8.inf", 
 "Mode=HTML", 
 /*EXTRARES, 
 "Url=images/bb_h_img2.jpg", ENDITEM, 
 "Url=images/bb_h_img1.jpg", ENDITEM, 
 "Url=images/bb_h_img3.jpg", ENDITEM, 
 "Url=images/loadingAnimation.gif", ENDITEM, 
 "Url=../favicon.ico", "Referer=", ENDITEM, */
 LAST);

Step Download Timeout

Step download Timeout is one of the run time setting menu under Internet Protocols,please read Step Download Timeout(Sec) post for more details.Coming to third point you can use web_set_timeout("STEP","") function to increase the timeout before web_url() in order to specify more time for downloading available resources.The script looks like below with web_set_timeout().

web_set_timeout("STEP","60");
web_url("wikishown", 
 "URL=http://www.wikishown.com", 
 "Resource=0", 
 "RecContentType=text/html", 
 "Referer=", 
 "Snapshot=t8.inf", 
 "Mode=HTML", 
 /*EXTRARES, 
 "Url=images/bb_h_img2.jpg", ENDITEM, 
 "Url=images/bb_h_img1.jpg", ENDITEM, 
 "Url=images/bb_h_img3.jpg", ENDITEM, 
 "Url=images/loadingAnimation.gif", ENDITEM, 
 "Url=../favicon.ico", "Referer=", ENDITEM, */
 LAST);

Let's understand the line web_set_timeout("STEP","60") ,here STEP indicates Time–out on each VuGen step ,indicates on which step timeout should apply.
STEP - indicates on which step timeout should apply
60 - Indicates how many seconds.

I hope you got good information on Extrares in Loadrunner,in case you like my post please provide your valuable comments and suggestions.Thank you for reading my website.

Error: -27751: Step download timeout (120 seconds) has expired

Error: -27751: Step download timeout 120 seconds has expired downloading resource,While working with HTTP/HTML protocols or web applications you will face some problems while executing the test scripts in loadrunner - VUGen component.The following error message gives you when web_set_url(url name) downloading the required resources which could be as follow,those are declare or recorded in EXTRARES as below

Error: -27751: Step download timeout 120 seconds has expired

web_url("bigbazaar", 
 "URL=http://wikishown.com/", 
 "Resource=0", 
 "RecContentType=text/html", 
 "Referer=", 
 "Snapshot=t8.inf", 
 "Mode=HTML", 
 EXTRARES, 
 "Url=images/bb_h_img2.jpg", ENDITEM, 
 "Url=images/bb_h_img1.jpg", ENDITEM, 
 "Url=images/bb_h_img3.jpg", ENDITEM, 
 "Url=images/loadingAnimation.gif", ENDITEM, 
 "Url=../favicon.ico", "Referer=", ENDITEM, 
 LAST);

In order to execute web_url() successfully Virtual User generator first downloads EXTRARES and it start execute the web_url() function ,in case downloading time completed as per setting then you will error message in reply log as

Error: -27751: Step download timeout (120 seconds) has expired when downloading resource

Resource downloading default time is 120 seconds,you can change resource downloading settings in Run time settings,please follow below steps to change resource
downloading time settings.

STEP 1 : Open Run Time Settings.
STEP 2 : Go to Internet Protocol - Preferences.

[caption id="attachment_1020" align="aligncenter" width="561"] Preferences Options[/caption]

STEP 3 : Click on Options button on preferences window.
STEP 4 : Just scroll down to General - Step Download Timeout (secs) here default time is 120 seconds.You can change it to your desired value.
STEP 5 :Click on OK and again Click on OK button

In case you want to set timeout value in script itself then you can use web_set_timeout() function to increase time limit in script for downloading resources as below

web_set_timeout()

The function which works to wait until given time to CONNECT,RECEIVE OR STEP to complete particular action.

web_set_timeout("STEP","60");

After setting the time increased limit,now try to run your script in VUGen ,you will not face any problems while downloading the resources and test script will run successfully with out any problem.Please provide your valuable comments on this posts, so that i will know that you got solution.

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