connectionKeeper constantly try to connect an unreachable machine

Using FoundationDB
1

Hi. I have FDB Cluster(verison: 6.2.26) with total 6 machines with three_data_hall. In each region, there are 2 machines.
I found that FDB cluster recovery getting stuck when a machine(with wrong firewall settings) denied all incoming packet and allowed all outgoing packet.

....
"messages" : [
            {
                "description" : "Unable to read database configuration.",
                "name" : "unreadable_configuration"
            }
        ],
....
"recovery_state" : {
            "active_generations" : 1,
            "description" : "Initializing new transaction servers and recovering transaction logs.",
            "name" : "initializing_transaction_servers"
        }

From master process logs, I found that connectionKeeper continue to attempt to connection to an unreachable machine even after TooManyConnectionsClosed. As the machine allows all outgoing packet, it leads the machine reports itself as healthy to the CC. I believe this is the reason why Master process keeps trying to connect that machine.
But, I wonder if there is no limit on the connection retry attempt (or workaround to resolve this issue) Unless I stop that machine manually, the master continue to try to connect and fails, causing the entire cluster to get stuck.

<Event Severity="10" Time="16:32:49:817357000" Type="ConnectingTo" ID="0000000000000000" SuppressedEventCount="1" PeerAddr="172.16.1.17:20000" Machine="172.18.1.16:20002" LogGroup="default" Roles="MS" />
<Event Severity="10" Time="16:32:50:830088000" Type="ConnectionTimedOut" ID="0000000000000000" SuppressedEventCount="2" PeerAddr="172.16.1.17:20000" Machine="172.18.1.16:20002" LogGroup="default" Roles="MS" />
<Event Severity="10" Time="16:32:50:830088000" Type="ConnectionClosed" ID="0000000000000000" Error="connection_failed" ErrorDescription="Network connection failed" ErrorCode="1026" SuppressedEventCount="2" PeerAddr="172.16.1.17:20000" Machine="172.18.1.16:20002" LogGroup="default" Roles="MS" />
<Event Severity="30" Time="16:32:50:830088000" Type="TooManyConnectionsClosed" ID="0000000000000000" SuppressedEventCount="0" PeerAddr="172.16.1.17:20000" Machine="172.18.1.16:20002" LogGroup="default" Roles="MS" />
<Event Severity="10" Time="16:32:50:841474000" Type="ConnectingTo" ID="0000000000000000" SuppressedEventCount="2" PeerAddr="172.16.1.17:20000" Machine="172.18.1.16:20002" LogGroup="default" Roles="MS" />
<Event Severity="10" Time="16:32:51:851511000" Type="ConnectionTimedOut" ID="0000000000000000" SuppressedEventCount="1" PeerAddr="172.16.1.17:20000" Machine="172.18.1.16:20002" LogGroup="default" Roles="MS" />

Thank you.