func NewSqlQuery(config Config) *SqlQuery {
sq := &SqlQuery{}
sq.qe = NewQueryEngine(config)
stats.Publish("TabletState", stats.IntFunc(sq.state.Get))
stats.Publish("TabletStateName", stats.StringFunc(sq.GetState))
return sq
}
func NewSchemaInfo(queryCacheSize int, idleTimeout time.Duration) *SchemaInfo {
si := &SchemaInfo{
queryCacheSize: queryCacheSize,
queries: cache.NewLRUCache(int64(queryCacheSize)),
connPool: NewConnectionPool("Schema", 2, idleTimeout),
}
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("QueryCounts", stats.NewMatrixFunc("Table", "Plan", si.getQueryCount))
stats.Publish("QueryTimesNs", stats.NewMatrixFunc("Table", "Plan", si.getQueryTime))
stats.Publish("QueryRowCounts", stats.NewMatrixFunc("Table", "Plan", si.getQueryRowCount))
stats.Publish("QueryErrorCounts", stats.NewMatrixFunc("Table", "Plan", si.getQueryErrorCount))
http.Handle("/debug/query_plans", si)
http.Handle("/debug/query_stats", si)
http.Handle("/debug/table_stats", si)
return si
}