Files
seaweedFS/weed/admin/handlers/cluster_handlers.go
Chris Lu 995dfc4d5d chore: remove ~50k lines of unreachable dead code (#8913)
* chore: remove unreachable dead code across the codebase

Remove ~50,000 lines of unreachable code identified by static analysis.

Major removals:
- weed/filer/redis_lua: entire unused Redis Lua filer store implementation
- weed/wdclient/net2, resource_pool: unused connection/resource pool packages
- weed/plugin/worker/lifecycle: unused lifecycle plugin worker
- weed/s3api: unused S3 policy templates, presigned URL IAM, streaming copy,
  multipart IAM, key rotation, and various SSE helper functions
- weed/mq/kafka: unused partition mapping, compression, schema, and protocol functions
- weed/mq/offset: unused SQL storage and migration code
- weed/worker: unused registry, task, and monitoring functions
- weed/query: unused SQL engine, parquet scanner, and type functions
- weed/shell: unused EC proportional rebalance functions
- weed/storage/erasure_coding/distribution: unused distribution analysis functions
- Individual unreachable functions removed from 150+ files across admin,
  credential, filer, iam, kms, mount, mq, operation, pb, s3api, server,
  shell, storage, topology, and util packages

* fix(s3): reset shared memory store in IAM test to prevent flaky failure

TestLoadIAMManagerFromConfig_EmptyConfigWithFallbackKey was flaky because
the MemoryStore credential backend is a singleton registered via init().
Earlier tests that create anonymous identities pollute the shared store,
causing LookupAnonymous() to unexpectedly return true.

Fix by calling Reset() on the memory store before the test runs.

* style: run gofmt on changed files

* fix: restore KMS functions used by integration tests

* fix(plugin): prevent panic on send to closed worker session channel

The Plugin.sendToWorker method could panic with "send on closed channel"
when a worker disconnected while a message was being sent. The race was
between streamSession.close() closing the outgoing channel and sendToWorker
writing to it concurrently.

Add a done channel to streamSession that is closed before the outgoing
channel, and check it in sendToWorker's select to safely detect closed
sessions without panicking.
2026-04-03 16:04:27 -07:00

388 lines
13 KiB
Go

package handlers
import (
"math"
"net/http"
"strconv"
"github.com/gorilla/mux"
"github.com/seaweedfs/seaweedfs/weed/admin/dash"
"github.com/seaweedfs/seaweedfs/weed/admin/view/app"
"github.com/seaweedfs/seaweedfs/weed/admin/view/layout"
)
// ClusterHandlers contains all the HTTP handlers for cluster management
type ClusterHandlers struct {
adminServer *dash.AdminServer
}
// NewClusterHandlers creates a new instance of ClusterHandlers
func NewClusterHandlers(adminServer *dash.AdminServer) *ClusterHandlers {
return &ClusterHandlers{
adminServer: adminServer,
}
}
// ShowClusterVolumeServers renders the cluster volume servers page
func (h *ClusterHandlers) ShowClusterVolumeServers(w http.ResponseWriter, r *http.Request) {
// Get cluster volume servers data
volumeServersData, err := h.adminServer.GetClusterVolumeServers()
if err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to get cluster volume servers: "+err.Error())
return
}
username := usernameOrDefault(r)
volumeServersData.Username = username
// Render HTML template
w.Header().Set("Content-Type", "text/html")
volumeServersComponent := app.ClusterVolumeServers(*volumeServersData)
viewCtx := layout.NewViewContext(r, username, dash.CSRFTokenFromContext(r.Context()))
layoutComponent := layout.Layout(viewCtx, volumeServersComponent)
if err := layoutComponent.Render(r.Context(), w); err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to render template: "+err.Error())
return
}
}
// ShowClusterVolumes renders the cluster volumes page
func (h *ClusterHandlers) ShowClusterVolumes(w http.ResponseWriter, r *http.Request) {
// Get pagination and sorting parameters from query string
page := 1
if p := r.URL.Query().Get("page"); p != "" {
if parsed, err := strconv.Atoi(p); err == nil && parsed > 0 {
page = parsed
}
}
pageSize := 100
if ps := r.URL.Query().Get("pageSize"); ps != "" {
if parsed, err := strconv.Atoi(ps); err == nil && parsed > 0 && parsed <= 1000 {
pageSize = parsed
}
}
sortBy := defaultQuery(r.URL.Query().Get("sortBy"), "id")
sortOrder := defaultQuery(r.URL.Query().Get("sortOrder"), "asc")
collection := r.URL.Query().Get("collection") // Optional collection filter
// Get cluster volumes data
volumesData, err := h.adminServer.GetClusterVolumes(page, pageSize, sortBy, sortOrder, collection)
if err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to get cluster volumes: "+err.Error())
return
}
username := usernameOrDefault(r)
volumesData.Username = username
// Render HTML template
w.Header().Set("Content-Type", "text/html")
volumesComponent := app.ClusterVolumes(*volumesData)
viewCtx := layout.NewViewContext(r, username, dash.CSRFTokenFromContext(r.Context()))
layoutComponent := layout.Layout(viewCtx, volumesComponent)
if err := layoutComponent.Render(r.Context(), w); err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to render template: "+err.Error())
return
}
}
// ShowVolumeDetails renders the volume details page
func (h *ClusterHandlers) ShowVolumeDetails(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
volumeIDStr := vars["id"]
server := vars["server"]
if volumeIDStr == "" {
writeJSONError(w, http.StatusBadRequest, "Volume ID is required")
return
}
if server == "" {
writeJSONError(w, http.StatusBadRequest, "Server is required")
return
}
volumeID, err := strconv.Atoi(volumeIDStr)
if err != nil {
writeJSONError(w, http.StatusBadRequest, "Invalid volume ID")
return
}
// Get volume details
volumeDetails, err := h.adminServer.GetVolumeDetails(volumeID, server)
if err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to get volume details: "+err.Error())
return
}
username := usernameOrDefault(r)
// Render HTML template
w.Header().Set("Content-Type", "text/html")
volumeDetailsComponent := app.VolumeDetails(*volumeDetails)
viewCtx := layout.NewViewContext(r, username, dash.CSRFTokenFromContext(r.Context()))
layoutComponent := layout.Layout(viewCtx, volumeDetailsComponent)
if err := layoutComponent.Render(r.Context(), w); err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to render template: "+err.Error())
return
}
}
// ShowClusterCollections renders the cluster collections page
func (h *ClusterHandlers) ShowClusterCollections(w http.ResponseWriter, r *http.Request) {
// Get cluster collections data
collectionsData, err := h.adminServer.GetClusterCollections()
if err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to get cluster collections: "+err.Error())
return
}
username := usernameOrDefault(r)
collectionsData.Username = username
// Render HTML template
w.Header().Set("Content-Type", "text/html")
collectionsComponent := app.ClusterCollections(*collectionsData)
viewCtx := layout.NewViewContext(r, username, dash.CSRFTokenFromContext(r.Context()))
layoutComponent := layout.Layout(viewCtx, collectionsComponent)
if err := layoutComponent.Render(r.Context(), w); err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to render template: "+err.Error())
return
}
}
// ShowCollectionDetails renders the collection detail page
func (h *ClusterHandlers) ShowCollectionDetails(w http.ResponseWriter, r *http.Request) {
collectionName := mux.Vars(r)["name"]
if collectionName == "" {
writeJSONError(w, http.StatusBadRequest, "Collection name is required")
return
}
// Parse query parameters
query := r.URL.Query()
page, _ := strconv.Atoi(defaultQuery(query.Get("page"), "1"))
pageSize, _ := strconv.Atoi(defaultQuery(query.Get("page_size"), "25"))
sortBy := defaultQuery(query.Get("sort_by"), "volume_id")
sortOrder := defaultQuery(query.Get("sort_order"), "asc")
// Get collection details data (volumes and EC volumes)
collectionDetailsData, err := h.adminServer.GetCollectionDetails(collectionName, page, pageSize, sortBy, sortOrder)
if err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to get collection details: "+err.Error())
return
}
username := usernameOrDefault(r)
collectionDetailsData.Username = username
// Render HTML template
w.Header().Set("Content-Type", "text/html")
collectionDetailsComponent := app.CollectionDetails(*collectionDetailsData)
viewCtx := layout.NewViewContext(r, username, dash.CSRFTokenFromContext(r.Context()))
layoutComponent := layout.Layout(viewCtx, collectionDetailsComponent)
if err := layoutComponent.Render(r.Context(), w); err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to render template: "+err.Error())
return
}
}
// ShowClusterEcShards handles the cluster EC shards page (individual shards view)
func (h *ClusterHandlers) ShowClusterEcShards(w http.ResponseWriter, r *http.Request) {
// Parse query parameters
query := r.URL.Query()
page, _ := strconv.Atoi(defaultQuery(query.Get("page"), "1"))
pageSize, _ := strconv.Atoi(defaultQuery(query.Get("page_size"), "100"))
sortBy := defaultQuery(query.Get("sort_by"), "volume_id")
sortOrder := defaultQuery(query.Get("sort_order"), "asc")
collection := defaultQuery(query.Get("collection"), "")
// Get data from admin server
data, err := h.adminServer.GetClusterEcVolumes(page, pageSize, sortBy, sortOrder, collection)
if err != nil {
writeJSONError(w, http.StatusInternalServerError, err.Error())
return
}
username := usernameOrDefault(r)
data.Username = username
// Render template
w.Header().Set("Content-Type", "text/html")
ecVolumesComponent := app.ClusterEcVolumes(*data)
viewCtx := layout.NewViewContext(r, username, dash.CSRFTokenFromContext(r.Context()))
layoutComponent := layout.Layout(viewCtx, ecVolumesComponent)
if err := layoutComponent.Render(r.Context(), w); err != nil {
writeJSONError(w, http.StatusInternalServerError, err.Error())
return
}
}
// ShowEcVolumeDetails renders the EC volume details page
func (h *ClusterHandlers) ShowEcVolumeDetails(w http.ResponseWriter, r *http.Request) {
volumeIDStr := mux.Vars(r)["id"]
if volumeIDStr == "" {
writeJSONError(w, http.StatusBadRequest, "Volume ID is required")
return
}
volumeID, err := strconv.Atoi(volumeIDStr)
if err != nil {
writeJSONError(w, http.StatusBadRequest, "Invalid volume ID")
return
}
// Check that volumeID is within uint32 range
if volumeID < 0 || uint64(volumeID) > math.MaxUint32 {
writeJSONError(w, http.StatusBadRequest, "Volume ID out of range")
return
}
// Parse sorting parameters
query := r.URL.Query()
sortBy := defaultQuery(query.Get("sort_by"), "shard_id")
sortOrder := defaultQuery(query.Get("sort_order"), "asc")
// Get EC volume details
ecVolumeDetails, err := h.adminServer.GetEcVolumeDetails(uint32(volumeID), sortBy, sortOrder)
if err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to get EC volume details: "+err.Error())
return
}
username := usernameOrDefault(r)
ecVolumeDetails.Username = username
// Render HTML template
w.Header().Set("Content-Type", "text/html")
ecVolumeDetailsComponent := app.EcVolumeDetails(*ecVolumeDetails)
viewCtx := layout.NewViewContext(r, username, dash.CSRFTokenFromContext(r.Context()))
layoutComponent := layout.Layout(viewCtx, ecVolumeDetailsComponent)
if err := layoutComponent.Render(r.Context(), w); err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to render template: "+err.Error())
return
}
}
// ShowClusterMasters renders the cluster masters page
func (h *ClusterHandlers) ShowClusterMasters(w http.ResponseWriter, r *http.Request) {
// Get cluster masters data
mastersData, err := h.adminServer.GetClusterMasters()
if err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to get cluster masters: "+err.Error())
return
}
username := usernameOrDefault(r)
mastersData.Username = username
// Render HTML template
w.Header().Set("Content-Type", "text/html")
mastersComponent := app.ClusterMasters(*mastersData)
viewCtx := layout.NewViewContext(r, username, dash.CSRFTokenFromContext(r.Context()))
layoutComponent := layout.Layout(viewCtx, mastersComponent)
if err := layoutComponent.Render(r.Context(), w); err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to render template: "+err.Error())
return
}
}
// ShowClusterFilers renders the cluster filers page
func (h *ClusterHandlers) ShowClusterFilers(w http.ResponseWriter, r *http.Request) {
// Get cluster filers data
filersData, err := h.adminServer.GetClusterFilers()
if err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to get cluster filers: "+err.Error())
return
}
username := usernameOrDefault(r)
filersData.Username = username
// Render HTML template
w.Header().Set("Content-Type", "text/html")
filersComponent := app.ClusterFilers(*filersData)
viewCtx := layout.NewViewContext(r, username, dash.CSRFTokenFromContext(r.Context()))
layoutComponent := layout.Layout(viewCtx, filersComponent)
if err := layoutComponent.Render(r.Context(), w); err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to render template: "+err.Error())
return
}
}
// GetClusterTopology returns the cluster topology as JSON
func (h *ClusterHandlers) GetClusterTopology(w http.ResponseWriter, r *http.Request) {
topology, err := h.adminServer.GetClusterTopology()
if err != nil {
writeJSONError(w, http.StatusInternalServerError, err.Error())
return
}
writeJSON(w, http.StatusOK, topology)
}
// GetMasters returns master node information
func (h *ClusterHandlers) GetMasters(w http.ResponseWriter, r *http.Request) {
mastersData, err := h.adminServer.GetClusterMasters()
if err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to get cluster masters: "+err.Error())
return
}
writeJSON(w, http.StatusOK, mastersData)
}
// GetVolumeServers returns volume server information
func (h *ClusterHandlers) GetVolumeServers(w http.ResponseWriter, r *http.Request) {
topology, err := h.adminServer.GetClusterTopology()
if err != nil {
writeJSONError(w, http.StatusInternalServerError, err.Error())
return
}
writeJSON(w, http.StatusOK, map[string]interface{}{"volume_servers": topology.VolumeServers})
}
// VacuumVolume handles volume vacuum requests via API
func (h *ClusterHandlers) VacuumVolume(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
volumeIDStr := vars["id"]
server := vars["server"]
if volumeIDStr == "" {
writeJSONError(w, http.StatusBadRequest, "Volume ID is required")
return
}
volumeID, err := strconv.Atoi(volumeIDStr)
if err != nil {
writeJSONError(w, http.StatusBadRequest, "Invalid volume ID")
return
}
if server == "" {
writeJSONError(w, http.StatusBadRequest, "Server is required")
return
}
// Perform vacuum operation
err = h.adminServer.VacuumVolume(volumeID, server)
if err != nil {
writeJSONError(w, http.StatusInternalServerError, "Failed to vacuum volume: "+err.Error())
return
}
writeJSON(w, http.StatusOK, map[string]interface{}{
"message": "Volume vacuum started successfully",
"volume_id": volumeID,
"server": server,
})
}
func usernameOrDefault(r *http.Request) string {
username := dash.UsernameFromContext(r.Context())
if username == "" {
return "admin"
}
return username
}