Latest Inquiries - Data Extraction Software

Error performing AJAX Call: NextPage

Submitted: 2/24/2016
Hi team,

I always got "Error performing AJAX call: Next Page" issue for my project and will result in "Data extranction partly completed". I have enabled JavaScript + AJAX for my next page page navigation but the problem still occurs. 

I have attached my files (project file + logfile) in a zipped folder. 

Thank you.

Replied: 2/25/2016 2:54:11 AM

I'm unable to run the project properly:

09:44 Navigation error (Direct URL). Unexpected error: ***Error running script*** A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not foun...

However, I checked your log file, I found most of page navigation errors happened after 'out of memory' issue raised on 50 pages more, the website needs to execute AJAX to load next page, therefore, 'Restart web browser' method couldn't be helpfully resolving the 'out of memory' issue and starting from last broken page, but you might attempt to increase the 'Minimum available memory' = 400 (default is 200MB), see if it might load more pages than 50? if you have enough memory, you can try to increase the memory more.

Attached new project has changed to use 'Javascript + Async.' action and enable wait scripts for wating page area template , 'error attempt times' , 'max  retries' has been set to 3 times for the 'NextPage' template in advanced option, it might help more a little of bit for avoiding  AJAX errors.

Replied: 2/25/2016 10:14:38 AM

I have go through VWR manual and can't find anything related to your suggestions. Can you please provide me some steps or any reference to do the steps that you suggested?

Replied: 2/26/2016 2:00:07 AM

Attached new project that I create a new 'redirect' template redirecting to page url : 

you can change the url as you would like to start from, after redirecting to certain page, the following page area  / page navigation template will finish the rest of pages, once you get 'out of memory' issue then page has been broken again, you can manually change the redirect url for resume on rest of pages, hope you make sense.

Replied: 2/25/2016 6:51:29 AM

There is no way to resolve 'out of memory' issue, natually, page navigation template won't be able to work when 'out of memory' issue raised.

But there seems to exist a trick, you might try to create a link template starting from last break point, then starting to collect rest of pages , for example, if it was stopped at 43 page, you can create a redirect link template to open page url before page navigation:

Replied: 2/25/2016 6:31:29 AM

I have run the file you have attached. Seems like the problem is still occuring. 

I have changed the data export setting in the project file so that you can run the project.

Project_K (2).zip