Custom Endpoints prevent mount with HNS enabled #3705
Description
Describe the issue
The hidden flag --enable-hns for Hierarchical Namespace support in combination with the specification of a Custom Endpoint for PSC usage prevents bucket mounting
System & Version (please complete the following information):
- OS: RHEL8/Fedora
- Platform: vSphere VM & Fedora Docker Image
- Version 3.2.0
Steps to reproduce the behavior with following information:
**Note: ** This describes the full use-case tested, in validation of the issue, specifying the default url of https://storage.googleapis.com/storage/v1 also reproduces the issue through public internet
- Have a GCS Bucket with HNS disabled
- Enable Private Service Connect to retrieve a PSC URL and have it linked through CloudVPN
- Get a Service Account with JSON key for authentication
- Configure GCS Fuse with the flags:
gcsfuse --implicit-dirs --allow_other --key-file=/path/to/key --custom-endpoint=storage.p.googleapis.com/storage/v1/ - FUSE mount fails
Additional context
Setting the hidden flag --enable-hns explicitly to false resolves the issue.
Error logging during the mount process
{"timestamp":{"seconds":1755588312,"nanos":565522854},"severity":"INFO","message":"Error occurred during command execution on gcsfuse/3.2.0 (Go version go1.24.5): mountWithStorageHandle: fs.NewServer: create file system: SetUpBucket: BucketHandle: storageLayout call failed: context deadline exceeded"}
{"timestamp":{"seconds":1755588361,"nanos":830359596},"severity":"ERROR","message":"Error while mounting gcsfuse: mountWithStorageHandle: fs.NewServer: create file system: SetUpBucket: BucketHandle: storageLayout call failed: context deadline exceeded\n"}
{"timestamp":{"seconds":1755588361,"nanos":830620850},"severity":"ERROR","message":"Failed to signal error to parent-process from daemon: write DAEMONIZE_STATUS_FD: broken pipe"}
{"timestamp":{"seconds":1755588361,"nanos":830701166},"severity":"INFO","message":"Error occurred during command execution on gcsfuse/3.2.0 (Go version go1.24.5): mountWithStorageHandle: fs.NewServer: create file system: SetUpBucket: BucketHandle: storageLayout call failed: context deadline exceeded"}