func (h *CfgGetHandler) ServeHTTP(
w http.ResponseWriter, req *http.Request) {
// TODO: Might need to scrub auth passwords from this output.
cfg := h.mgr.Cfg()
indexDefs, indexDefsCAS, indexDefsErr :=
cbgt.CfgGetIndexDefs(cfg)
nodeDefsWanted, nodeDefsWantedCAS, nodeDefsWantedErr :=
cbgt.CfgGetNodeDefs(cfg, cbgt.NODE_DEFS_WANTED)
nodeDefsKnown, nodeDefsKnownCAS, nodeDefsKnownErr :=
cbgt.CfgGetNodeDefs(cfg, cbgt.NODE_DEFS_KNOWN)
planPIndexes, planPIndexesCAS, planPIndexesErr :=
cbgt.CfgGetPlanPIndexes(cfg)
MustEncode(w, RESTCfg{
Status: "ok",
IndexDefs: indexDefs,
IndexDefsCAS: indexDefsCAS,
IndexDefsErr: indexDefsErr,
NodeDefsWanted: nodeDefsWanted,
NodeDefsWantedCAS: nodeDefsWantedCAS,
NodeDefsWantedErr: nodeDefsWantedErr,
NodeDefsKnown: nodeDefsKnown,
NodeDefsKnownCAS: nodeDefsKnownCAS,
NodeDefsKnownErr: nodeDefsKnownErr,
PlanPIndexes: planPIndexes,
PlanPIndexesCAS: planPIndexesCAS,
PlanPIndexesErr: planPIndexesErr,
})
}
func (h *NsStatusHandler) ServeHTTP(
w http.ResponseWriter, req *http.Request) {
cfg := h.mgr.Cfg()
planPIndexes, _, err := cbgt.CfgGetPlanPIndexes(cfg)
if err != nil {
rest.ShowError(w, req, "could not retrieve plan pIndexes", 500)
return
}
nodesDefs, _, err := cbgt.CfgGetNodeDefs(cfg, cbgt.NODE_DEFS_WANTED)
if err != nil {
rest.ShowError(w, req, "could not retrieve node defs (wanted)", 500)
return
}
_, indexDefsMap, err := h.mgr.GetIndexDefs(false)
if err != nil {
rest.ShowError(w, req, "could not retrieve index defs", 500)
return
}
w.Write(cbgt.JsonOpenBrace)
w.Write(statsNamePrefix)
w.Write([]byte("status"))
w.Write(statsNameSuffix)
w.Write([]byte("["))
indexDefNames := make(sort.StringSlice, 0, len(indexDefsMap))
for indexDefName := range indexDefsMap {
indexDefNames = append(indexDefNames, indexDefName)
}
sort.Sort(indexDefNames)
for i, indexDefName := range indexDefNames {
indexDef := indexDefsMap[indexDefName]
if i > 0 {
w.Write(cbgt.JsonComma)
}
rest.MustEncode(w, struct {
Completion int `json:"completion"`
Hosts []string `json:"hosts"`
Status string `json:"status"`
Bucket string `json:"bucket"`
Name string `json:"name"`
}{
Bucket: indexDef.SourceName,
Name: indexDefName,
Hosts: HostsForIndex(indexDefName, planPIndexes, nodesDefs),
// FIXME hard-coded
Completion: 100,
Status: "Ready",
})
}
w.Write([]byte("],"))
w.Write(statsNamePrefix)
w.Write([]byte("code"))
w.Write(statsNameSuffix)
w.Write([]byte("\"success\""))
w.Write(cbgt.JsonCloseBrace)
}
func RunRecentInfoCache(mgr *cbgt.Manager) {
cfg := mgr.Cfg()
cfgChangedCh := make(chan struct{}, 10)
go func() { // Debounce cfg events to feed into the cfgChangedCh.
ech := make(chan cbgt.CfgEvent)
cfg.Subscribe(cbgt.PLAN_PINDEXES_KEY, ech)
for {
<-ech // First, wait for a cfg event.
debounceTimeCh := time.After(500 * time.Millisecond)
DEBOUNCE_LOOP:
for {
select {
case <-ech:
// NO-OP when there are more, spammy cfg events.
case <-debounceTimeCh:
break DEBOUNCE_LOOP
}
}
cfgChangedCh <- struct{}{}
}
}()
tickCh := time.Tick(1 * time.Minute)
for {
var nodeDefs *cbgt.NodeDefs
var planPIndexes *cbgt.PlanPIndexes
indexDefs, indexDefsMap, err := mgr.GetIndexDefs(false)
if err == nil {
nodeDefs, _, err = cbgt.CfgGetNodeDefs(cfg, cbgt.NODE_DEFS_WANTED)
if err == nil {
planPIndexes, _, err = cbgt.CfgGetPlanPIndexes(cfg)
}
}
rd := &recentInfo{
indexDefs: indexDefs,
indexDefsMap: indexDefsMap,
nodeDefs: nodeDefs,
planPIndexes: planPIndexes,
err: err,
}
runtime.ReadMemStats(&rd.memStats)
REUSE_CACHE:
for {
select {
case <-cfgChangedCh:
break REUSE_CACHE
case <-tickCh:
break REUSE_CACHE
case recentInfoCh <- rd:
if rd.err != nil {
break REUSE_CACHE
}
}
}
}
}
