mgmtd primary not found

Got an error after [step 4](https://github.com/deepseek-ai/3FS/blob/main/deploy/README.md#step-4-mgmtd-service). run a admin_cli list-nodes
```
# /opt/3fs/bin/admin_cli -cfg /opt/3fs/etc/admin_cli.toml --config.mgmtd_client.mgmtd_server_addresses '["RDMA://192.168.3.25:8000"]' "list-nodes"
Encounter error: 6004(MgmtdClient::RoutingInfoNotReady)
# tail -f cli.log -n 1000
[2025-03-17T06:28:38.756472517+00:00 CliConn1: 2092 IBConnect.cc:290 DEBUG] IBSocket [connect RDMA://192.168.3.25:8000] use devices {local mlx5_2:1, remote mlx5_2:1, zone UNKNOWN}
[2025-03-17T06:28:38.756474969+00:00 CliConn1: 2092 IBConnect.cc:386 INFO] IBSocket [connect RDMA://192.168.3.25:8000] connect with dev {local mlx5_2:1, remote mlx5_2:1, zone UNKNOWN}
[2025-03-17T06:28:38.756696933+00:00 CliConn1: 2092 IBDevice.cc:112 DEBUG] mlx5_2:1 skip GID 0, ip fe80::ba3f:d2ff:fec8:fe8e
[2025-03-17T06:28:38.756701670+00:00 CliConn1: 2092 IBDevice.cc:112 DEBUG] mlx5_2:1 skip GID 1, ip fe80::ba3f:d2ff:fec8:fe8e
[2025-03-17T06:28:38.756732933+00:00 CliConn1: 2092 IBDevice.cc:129 DEBUG] mlx5_2:1 skip GID 2, type IB/RoCE v1 != RoCE v2
[2025-03-17T06:28:38.756742849+00:00 CliConn1: 2092 IBDevice.cc:133 DEBUG] mlx5_2:1 found RoCE v2 GID, index 3, ip ::ffff:192.168.3.25
[2025-03-17T06:28:38.756758943+00:00 CliConn1: 2092 IBConnect.cc:545 DEBUG] IBSocket [connect RDMA://192.168.3.25:8000] create QP.
[2025-03-17T06:28:38.757876165+00:00 CliConn1: 2092 IBConnect.cc:727 DEBUG] IBSocket [connect RDMA://192.168.3.25:8000] init socket buffers.
[2025-03-17T06:28:38.758423065+00:00 CliConn1: 2092 IBDevice.cc:520 DEBUG] IBDevice mlx5_2 reg_mr, addr 0x556b78032000, length 1196032, access 1048577, mr 0x556b76a779c0
[2025-03-17T06:28:38.758455178+00:00 CliConn1: 2092 IBConnect.cc:606 DEBUG] IBSocket [connect RDMA://192.168.3.25:8000] init QP.
[2025-03-17T06:28:38.761324337+00:00 CliProc1: 2086 Processor.h:153 DEBUG] receive response 11:2
[2025-03-17T06:28:38.761357114+00:00 CliConn0: 2091 IBConnect.cc:625 DEBUG] IBSocket RDMA://localhost.localdomain/mlx5_2:1/1025 modify QP to RTR.
[2025-03-17T06:28:38.761369815+00:00 CliConn0: 2091 IBConnect.cc:653 DEBUG] IBSocket RDMA://localhost.localdomain/mlx5_2:1/1025 modify QP to RTR, linklayer ETHERNET, dgid 0:0:0:0:0:0:0:0:0:0:ff:ff:c0:a8:3:19, tc 0
[2025-03-17T06:28:38.761691893+00:00 CliConn0: 2091 IBConnect.cc:697 DEBUG] IBSocket RDMA://localhost.localdomain/mlx5_2:1/1025 modify QP to RTS.
[2025-03-17T06:28:38.761862855+00:00 CliConn0: 2091 IBConnect.cc:446 INFO] IBSocket RDMA://localhost.localdomain/mlx5_2:1/1025 connected
[2025-03-17T06:28:38.761893006+00:00 CliEL0: 2093 IBSocket.cc:509 INFO] IBSocket RDMA://localhost.localdomain/mlx5_2:1/1025 turn to READY from CONNECTING.
[2025-03-17T06:28:38.828395564+00:00 IBManager: 2084 IBSocket.cc:1219 DEBUG] IBSocketManager handleEvents running
[2025-03-17T06:28:38.859374605+00:00 CliBG0: 2089 IBSocket.cc:729 DEBUG] IBSocket RDMA://localhost.localdomain/mlx5_2:1/1023 modify QP to ERROR
[2025-03-17T06:28:38.859817155+00:00 CliBG0: 2089 IBSocket.cc:317 DEBUG] IBSocket destructor RDMA://localhost.localdomain/mlx5_2:1/1023
[2025-03-17T06:28:38.860280560+00:00 CliBG0: 2089 IBDevice.cc:537 DEBUG] IBDevice mlx5_1 dereg_mr mr 0x556b76a77680
[2025-03-17T06:28:38.862270903+00:00 CliBG0: 2089 MgmtdClient.cc:509 ERROR] MgmtdClient: probePrimary NodeId(0) failed: RPC::Timeout(2005)
[2025-03-17T06:28:38.862339969+00:00 CliBG0: 2089 MgmtdClient.cc:162 INFO] MgmtdClient: mark node as Skipped NodeId(0) ["RDMA://192.168.3.25:8000"]
[2025-03-17T06:28:38.862355569+00:00 CliBG0: 2089 MgmtdClient.cc:434 WARNING] MgmtdClient: primary not found
[2025-03-17T06:28:38.862366583+00:00 CliBG0: 2089 MgmtdClient.cc:390 ERROR] [MgmtdClientOp RefreshRoutingInfo force=false No.2] failed: MgmtdClient::PrimaryMgmtdNotFound(6000) ./src/client/mgmtd/MgmtdClient.cc:173, '_result' has error. latency: 0ns
[2025-03-17T06:28:38.862420283+00:00 CliBG0: 2089 MgmtdClient.cc:381 INFO] MgmtdClient: receive ExitItem
[2025-03-17T06:28:38.862429671+00:00 CliBG1: 2090 MgmtdClient.cc:286 ERROR] MgmtdClient: AutoRefresh failed: MgmtdClient::PrimaryMgmtdNotFound(6000) ./src/client/mgmtd/MgmtdClient.cc:173, '_result' has error
[2025-03-17T06:28:38.862437676+00:00 admin_cli: 2028 BackgroundRunner.cc:63 DEBUG] BackgroundRunner: start to execute stopAll
[2025-03-17T06:28:38.862468275+00:00 CliBG1: 2090 BackgroundRunner.cc:85 DEBUG] BackgroundRunner: AutoRefresh round 2 start
[2025-03-17T06:28:38.862495441+00:00 CliBG1: 2090 MgmtdClient.cc:286 ERROR] MgmtdClient: AutoRefresh failed: MgmtdClient::Exit(6003) ./src/client/mgmtd/MgmtdClient.cc:455, '_result' has error
[2025-03-17T06:28:38.862527652+00:00 CliBG1: 2090 BackgroundRunner.cc:102 DEBUG] BackgroundRunner: AutoRefresh wait 999946us for next round
[2025-03-17T06:28:38.862550071+00:00 CliBG1: 2090 BackgroundRunner.cc:104 DEBUG] BackgroundRunner: AutoRefresh is cancelled.
[2025-03-17T06:28:38.862553868+00:00 CliBG1: 2090 BackgroundRunner.cc:111 INFO] BackgroundRunner: AutoRefresh stopped
[2025-03-17T06:28:38.862564910+00:00 admin_cli: 2028 BackgroundRunner.cc:70 DEBUG] BackgroundRunner: finish to execute stopAll
[2025-03-17T06:28:38.862570274+00:00 admin_cli: 2028 BackgroundRunner.cc:50 DEBUG] BackgroundRunner: destructed
[2025-03-17T06:28:38.862571436+00:00 admin_cli: 2028 MgmtdClient.cc:277 INFO] MgmtdClient: stopped

```

Start with deploy/README.md at step 4 and reproduce the admin_cli list-nodes command using the configuration shown. Read the logged paths src/client/mgmtd/MgmtdClient.cc and IBConnect.cc, tracing the primary probe timeout and routing-info error. Done means the reported setup no longer fails, or the issue contains a confirmed cause and reproducible fix.

Written by the indexing model from the issue text.