Problem
In a dual-node environment, the instance access network on the "control node + computing node" is normal, however, instances on computing nodes copy files from other machines very slowly, with only dozens of K
Solution
Through the query of some information on the Internet, this may be caused by MTU. Therefore, MTU is reconfigured for all instances on the computer, and the result speed returns to normal, the instance uses the windows2008 system. The configuration steps are as follows:
1. Start-run-enter Regedit to open the registry. 2. in the registry, open the HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ Tcpip \ Parameters \ interfaces3. you will see several different sub-items in interfaces, find the IP address of the sub-item, create a New DWORD Value, change the name to MTU search, right-click to modify and type 14544. restart an instance
Openstack: a solution to slow network access on control nodes