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Concurrent requests limit exceeded

We are getting a problem querying chatter feeds in Apex.  At sporadic times we get an error page:-


"Unable to Process Request

Concurrent requests limit exceeded.

To protect all customers from excessive usage and Denial of Service attacks, we limit the number of long-running requests that are processed at the same time by an organization. Your request has been denied because this limit has been exceeded by your organization. Please try your request again later.".



If we take out the query to NewsFeed or Object__Feed then it all works fine.  With those queries we get the sporadic error.  Once the error appears then all subseqent queries to NewsFeed fail for about 30 minutes.  After that the queries start working again.


Note that we are not using any Webservice or API calls etc.  The queries are in vanilla Visualforce controllers in Apex.  No Ajax callback or anything like that.   The error happens whether or not we use Eclipse to develop.


We only first noticed this since summer 10 went live, but that could be a coincidence as the app is being actively developed.


Anyone else have this problem?  Even better, a cure?  Or is this an SFDC bug?





Abhinav GuptaAbhinav Gupta

Even I am getting the same error since yesterday. Gave a 24 hours gap to avoid this error. But no success !

Today I refreshed the chatter feed just 2 times and I got this error. Is there some bug, because of recent summer 10 release by salesforce ?

Abhinav GuptaAbhinav Gupta

Even on going to Profile page I get this error. So it seems its something native messed up.


An internal server error has occurred
An error has occurred while processing your request. The support team has been notified of the problem. If you believe you have additional information that may be of help in reproducing or correcting the error, please contact Salesforce Support. Please indicate the URL of the page you were requesting, any error id shown on this page as well as any other related information. We apologize for the inconvenience. 

Thank you again for your patience and assistance. And thanks for using! 

Error ID: 825397063-77 (730548061)


I was just testing some Workflow-Rules and converted about 20 Leads in one hour. Getting the same error message now.

It seems like there has been some sort of update behind the scenes to prevent ddos that is going a little bit too far.


Any other experiences?

Soujanya sunkaraSoujanya sunkara

Hi All


Did any one of you could be able to solve this problem, even we are facing the same issue.

"Unable to Process Request Concurrent requests limit exceeded


  • If  we are trying to run a test class from developer console then I am getting the error: “AsyncApexTests Limit exceeded”.