VMware vSphere Client could not connect to vCenter version 5.1.0

Recently we had an issue, where we were unable to connect to one of our VMware ESXi vCenter’s (v5.1.0) with vSphere Client. Everything worked, all virtual machines were up, except vCenter. Digging deeper, the log files revealed the following: 2014-09-19T09:01:09.494+03:00 [02156 warning ‘Default’] [VdbStatement] SQL execution failed: cleanup_events_tasks_proc 2014-09-19T09:01:09.494+03:00 [02156 warning ‘Default’] [VdbStatement] Execution elapsed […]

Solution for: A transport-level error has occurred when receiving results from the server…

We have a program written in C# using Visual Studio 2012 and .NET 4.0 / .NET 4.5. It rapidly executes many queries in Microsoft SQL Server 2008 R2 and then exits. Executed query count varies from several hundred to many thousand. Today, when executed particular task with very many queries, I noticed an error in […]