dataTables generating multiple server side requests

anupamsmaurya

I am using dataTable with server side processing enabled. While using fnReloadAjax function, there is a delay of 2-3 seconds between hiding of the processing div and display of the new data. I found out that this is due to multiple server requests made by datatable.

In my page onchange event of a set of radio buttons is making a call to server for new data as follows

[code]oTable.fnReloadAjax("getCaseList?caseStatus=xxx&showValidOnly=true");[/code]

In the firebug console I see two requests being made one after the other

[code]1. GET https://localhost/getCaseList?caseStatus=xxx&showValidOnly=true&_=1363611652185[/code]
[code]2. GET https://localhost/getCaseList?caseStatus=xxx&showValidOnly=true&sEcho=4&iColumns=9&sColumns=&iDisplayStart=0&iDisplayLength=100&sSearch=&bRegex=false&sSearch_0=&bRegex_0=false&bSearchable_0=true&sSearch_1=&bRegex_1=false&bSearchable_1=true&sSearch_2=&bRegex_2=false&bSearchable_2=true&sSearch_3=&bRegex_3=false&bSearchable_3=true&sSearch_4=&bRegex_4=false&bSearchable_4=true&sSearch_5=&bRegex_5=false&bSearchable_5=true&sSearch_6=&bRegex_6=false&bSearchable_6=true&sSearch_7=&bRegex_7=false&bSearchable_7=true&sSearch_8=&bRegex_8=false&bSearchable_8=true&iSortingCols=1&iSortCol_0=4&sSortDir_0=desc&bSortable_0=false&bSortable_1=true&bSortable_2=true&bSortable_3=true&bSortable_4=true&bSortable_5=true&bSortable_6=true&bSortable_7=true&bSortable_8=true&_=1363611701804[/code]

The processing div is getting hidden after the completion of first request but new data is loaded only after the second request is complete.

Why is datatable making that second extra call?