Rustfs builds a cluster and starts with an error message --"failed to lookup address information: Try again"

[zjy-githup]

cat /etc/default/rustfs
RUSTFS_ACCESS_KEY=rustfsadmin
RUSTFS_SECRET_KEY=rustfsadmin
RUSTFS_VOLUMES="http://node{1...4}:9000/data/rustfs{0...3}"
RUSTFS_ADDRESS=":9000"
RUSTFS_CONSOLE_ENABLE=true
RUST_LOG=warn
RUSTFS_OBS_LOG_DIRECTORY="/var/logs/rustfs/"

cat /etc/hosts
172.16.10.140 node1
172.16.10.141 node2
172.16.10.142 node3
172.16.10.143 node4

[zjy-githup]

Log directory ready: /var/logs/rustfs
Log directory permissions set to 755: /var/logs/rustfs
Using default Async write mode in production. To customize, set RUSTFS_OBS_LOG_POOL_CAPA, RUSTFS_OBS_LOG_MESSAGE_CAPA, and RUSTFS_OBS_LOG_FLUSH_MS environment variables.
Production logging initialized: file-only mode to /var/logs/rustfs/rustfs.log
Stdout logging disabled in production environment for security and log aggregation.
Log rotation configured for: every day or when size exceeds 100MB, keeping 30 files
Error: Custom { kind: Other, error: Custom { kind: Other, error: Custom { kind: Uncategorized, error: "failed to lookup address information: Try again" } } }

[loverustfs]

Log directory ready: /var/logs/rustfs
Log directory permissions set to 755: /var/logs/rustfs
Using default Async write mode in production. To customize, set RUSTFS_OBS_LOG_POOL_CAPA, RUSTFS_OBS_LOG_MESSAGE_CAPA, and RUSTFS_OBS_LOG_FLUSH_MS environment variables.
Production logging initialized: file-only mode to /var/logs/rustfs/rustfs.log
Stdout logging disabled in production environment for security and log aggregation.
Log rotation configured for: every day or when size exceeds 100MB, keeping 30 files
Error: Custom { kind: Other, error: Custom { kind: Other, error: Custom { kind: Uncategorized, error: "failed to lookup address information: Try again" } } }

Have you configured the aliases and IP addresses of node1 to node4 in /etc/hosts?

[zjy-githup]

cat /etc/hosts
172.16.10.140 node1
172.16.10.141 node2
172.16.10.142 node3
172.16.10.143 node4

[zjy-githup]

root@node1:~# nslookup node01
;; Got SERVFAIL reply from 127.0.0.53
Server: 127.0.0.53
Address: 127.0.0.53#53

** server can't find node01: SERVFAIL

root@node1:~# nslookup node1
Server: 127.0.0.53
Address: 127.0.0.53#53

Name: node1
Address: 172.16.10.140

root@node1:~# nslookup node2
Server: 127.0.0.53
Address: 127.0.0.53#53

Name: node2
Address: 172.16.10.141

root@node1:~# nslookup node3
Server: 127.0.0.53
Address: 127.0.0.53#53

Name: node3
Address: 172.16.10.142

root@node1:~# nslookup node4
Server: 127.0.0.53
Address: 127.0.0.53#53

Name: node4
Address: 172.16.10.143

[zjy-githup]

rustfs version

/usr/local/bin/rustfs --version
rustfs 1.0.0-alpha.59
build time : 2025-09-21 12:39:22 +00:00
build profile: release
build os : linux-x86_64
rust version : rustc 1.90.0 (1159e78c4 2025-09-14)
rust channel : stable-x86_64-unknown-linux-gnu
git branch :
git commit : f7e188e
git tag : 1.0.0-alpha.59
git status :

[loverustfs]

@zjy-githup ,

Could you please describe your operating system and deployment process?

We will retest the system using the same environment as yours.

[zjy-githup]

The system is Ubuntu 22.04 Desktop Edition. Deploy the service in accordance with this document (Document URL:https://docs.rustfs.com/zh/installation/linux/multiple-node-multiple-disk.html)

[kadishmal]

I am encountering the same error with rust-1.0.0-beta.4 on Kubernetes v1.35.0. I can ping and nslookup the node.

$ nslookup prod-rustfs-3.prod-rustfs-headless.apple.svc.cluster.local
Server:		10.1.110.1
Address:	10.1.110.1#53

Non-authoritative answer:
Name:	prod-rustfs-3.prod-rustfs-headless.apple.svc.cluster.local
Address: 10.2.110.10

Rust configuration contains:

data:
  RUSTFS_VOLUMES: http://prod-rustfs-{0...3}.prod-rustfs-headless.apple.svc.cluster.local:9000/data

The problem is that the logs do not tell which address has the problem.

[FATAL] Server encountered an error and is shutting down: failed to lookup address information: Name does not resolve
{"timestamp":"2026-05-22T21:03:29.795535645Z","level":"ERROR","fields":{"message":"Server encountered an error and is shutting down: failed to lookup address information: Name does not resolve"},"target":"rustfs","filename":"rustfs/src/main.rs","line_number":242,"threadName":"main","threadId":"ThreadId(1)"}

It would have been informative to see which domain RustFS is trying to reach. I suppose it is http://prod-rustfs-{0...3}.prod-rustfs-headless.apple.svc.cluster.local, and these are correctly resolvable.

Do you see any issues?