By default envison have a maximum allowed connections. This error will occur by opening more than 4000 active sockets in the envision appliance. The default maximum number of ephemeral TCP ports is 5000 in Win 2003 server. So when the load is steep, then there is a chance of encountering this issue. Keep in mind that this is an OS hard set default and not the envision application.
(maximum connections reached)
root cause
java.sql.SQLException: JZ006: Caught IOException: java.net.SocketException: No buffer space available JVM_Bind
Please apply the following workaround along with it :
1. Take the backup of the registry.
2. Start Registry Editor.
3. Locate the following subkey in the registry, and then click Parameters:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
On the Edit menu, click New, and click DWORD value then add the following registry entry:
Value Name: MaxUserPort
Value Type: DWORD
Value data: 65534 (decimal)
Description: This parameter controls the maximum port number that is used when a program requests any available user port from the system. Typically, ephemeral (short-lived) ports are allocated between the values of 1024 and 5000 inclusive. After the release of security bulletin MS08-037, the behavior of Windows Server 2003 was changed to more closely match that of Windows Server 2008 and Windows Vista
Microsoft article http://support.microsoft.com/kb/196271/EN-US
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