func NewSchemaInfo(queryCacheSize int, reloadTime time.Duration, idleTimeout time.Duration, sensitiveMode bool) *SchemaInfo {
si := &SchemaInfo{
queryCacheSize: queryCacheSize,
queries: cache.NewLRUCache(int64(queryCacheSize)),
rules: NewQueryRules(),
connPool: NewConnectionPool("", 2, idleTimeout),
reloadTime: reloadTime,
ticks: timer.NewTimer(reloadTime),
sensitiveMode: sensitiveMode,
}
stats.Publish("QueryCacheLength", stats.IntFunc(si.queries.Length))
stats.Publish("QueryCacheSize", stats.IntFunc(si.queries.Size))
stats.Publish("QueryCacheCapacity", stats.IntFunc(si.queries.Capacity))
stats.Publish("QueryCacheOldest", stats.StringFunc(func() string {
return fmt.Sprintf("%v", si.queries.Oldest())
}))
stats.Publish("SchemaReloadTime", stats.DurationFunc(func() time.Duration {
return si.reloadTime
}))
_ = stats.NewMapCountersFunc("TableStats", []string{"Table", "Stats"}, si.getTableStats)
stats.Publish("TableInvalidations", stats.CountersFunc(si.getTableInvalidations))
_ = stats.NewMapCountersFunc("QueryCounts", []string{"Table", "Plan"}, si.getQueryCount)
_ = stats.NewMapCountersFunc("QueryTimesNs", []string{"Table", "Plan"}, si.getQueryTime)
_ = stats.NewMapCountersFunc("QueryRowCounts", []string{"Table", "Plan"}, si.getQueryRowCount)
_ = stats.NewMapCountersFunc("QueryErrorCounts", []string{"Table", "Plan"}, si.getQueryErrorCount)
// query_plans cannot be shown in sensitive mode
if !si.sensitiveMode {
http.Handle("/debug/query_plans", si)
}
http.Handle("/debug/query_stats", si)
http.Handle("/debug/table_stats", si)
http.Handle("/debug/schema", si)
return si
}
func main() {
flag.Parse()
servenv.Init()
ts := topo.GetServer()
defer topo.CloseServers()
resilientSrvTopoServer = vtgate.NewResilientSrvTopoServer(ts, "ResilientSrvTopoServerCounts")
labels := []string{"Cell", "Keyspace", "Shard", "DbType"}
_ = stats.NewMapCountersFunc("EndpointCount", labels, resilientSrvTopoServer.HealthyEndpointCount)
_ = stats.NewMapCountersFunc("DegradedEndpointCount", labels, resilientSrvTopoServer.DegradedEndpointCount)
// For the initial phase vtgate is exposing
// topoReader api. This will be subsumed by
// vtgate once vtgate's client functions become active.
topoReader = NewTopoReader(resilientSrvTopoServer)
topo.RegisterTopoReader(topoReader)
vtgate.Init(resilientSrvTopoServer, *cell, *retryDelay, *retryCount, *timeout)
servenv.RunDefault()
}