Files
s3/weed/server/raft_common.go
zooqueen dd74d3e6d6 Replace AGPL MinIO fork with Apache-2.0 SeaweedFS fork; rebrand CLI weed->s3
hanzoai/s3 was an AGPL-3.0 MinIO fork whose network-copyleft blocks embedding
and reselling as a managed service. Replace it wholesale with a fork of
SeaweedFS (github.com/seaweedfs/seaweedfs, Apache-2.0, Go) which ships a
built-in S3 gateway + Filer.

- License: AGPL-3.0 -> Apache-2.0 (upstream LICENSE kept verbatim, incl.
  "Copyright 2025 Chris Lu"); NOTICE added crediting SeaweedFS. No AGPL/BUSL/
  SSPL/GPL or enterprise ("ee") files remain.
- Module: go.mod path set to github.com/hanzoai/s3 with a self-replace
  (replace github.com/seaweedfs/seaweedfs => ./) so the ~1800 internal Go files
  keep their upstream import paths with zero churn. Internal identifiers and
  import paths are intentionally NOT renamed.
- CLI rebrand: the binary is built as `s3` (was `weed`); root usage, per-command
  help/usage/flag strings, shell autocomplete program name, and the product name
  in CLI output now read "Hanzo S3" / `s3`. Users never see `weed`.
  (e.g. `s3 server`, `s3 filer`, `s3 master`, `s3 volume`, `s3 s3`, `s3 mount`.)
- Build: `make` (or `go build -o s3 ./weed`) builds the `s3` binary green;
  `cmd/weed-db` and `cmd/weed-sql` also build; `go vet ./weed/command/` clean.
- README/LLM.md rewritten for Hanzo S3; AGENTS.md/CLAUDE.md symlinks preserved.
- Dropped a 33MB prebuilt Mach-O `stress` binary upstream had committed; `.gitignore`
  updated to ignore the `s3` build output.
2026-06-18 23:41:25 -07:00

65 lines
2.0 KiB
Go

package weed_server
import (
"encoding/json"
"time"
"github.com/google/uuid"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/topology"
)
// recoverTopologyIdFromState restores the TopologyId from serialized FSM
// state bytes (JSON-encoded MaxVolumeIdCommand). Both raft implementations
// call this after reading their snapshot in their own format.
func recoverTopologyIdFromState(fsmState []byte, topo *topology.Topology) {
if topo.GetTopologyId() != "" {
return
}
var cmd topology.MaxVolumeIdCommand
if err := json.Unmarshal(fsmState, &cmd); err != nil {
return
}
if cmd.TopologyId != "" {
topo.SetTopologyId(cmd.TopologyId)
glog.V(0).Infof("Recovered TopologyId from snapshot: %s", cmd.TopologyId)
}
}
// EnsureTopologyId ensures that a TopologyId is generated and persisted if it's currently missing.
// It uses the provided checkLeaderFn to verify leadership and persistFn to save the new ID.
func EnsureTopologyId(topo *topology.Topology, checkLeaderFn func() bool, persistFn func(string) error) {
if topo.GetTopologyId() != "" {
return
}
topologyId := uuid.New().String()
for {
if !checkLeaderFn() {
glog.V(0).Infof("lost leadership while saving topologyId")
return
}
// Another concurrent operation may have set the ID between generation and now.
if latestId := topo.GetTopologyId(); latestId != "" {
glog.V(1).Infof("topologyId was set concurrently to %s, aborting generation", latestId)
return
}
if err := persistFn(topologyId); err != nil {
glog.Errorf("failed to save topologyId, will retry: %v", err)
time.Sleep(time.Second)
continue
}
// Verify that the topology ID was actually applied as expected.
appliedId := topo.GetTopologyId()
if appliedId != "" && appliedId != topologyId {
glog.V(0).Infof("TopologyId generation race: expected %s, but current TopologyId is %s", topologyId, appliedId)
} else {
glog.V(0).Infof("TopologyId generated: %s", topologyId)
}
break
}
}