Clone operation might fail or take longer time to complete with default TCP_TIMEOUT value

Description

Clone operations take longer than 30 minutes to complete when scheduled backups are running with the default TCP_TIMEOUT set.

Backup operations fails with MySQL connection error because of the delay in the TCP_TIMEOUT.

Corrective action

In the Windows registry, complete the following steps:

  1. Using Registry Editor (regedit.exe), open the Windows registry.
  2. Locate the following key:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
  3. To change the available ephemeral ports from 5000 to 65534, in the Edit menu, click New > DWORD (32-bit) Value.
  4. Add the following registry information:
    • Value Name: MaxUserPort
    • Value: 65534
  5. To change the TcpTimedWaitDelay from the default of 4 minutes to 30 seconds, in the Edit menu, click New > DWORD (32-bit) Value.
  6. Add the following registry information:
    • Value Name: TcpTimedWaitDelay
    • Value: 30
  7. Exit the registry by closing Registry Editor.
  8. Reboot the SnapCenter host.