Add logs and handle disabled chain reader when median loop is enabled

core/services/ocr2/plugins/median/services.go

@@ -130,19 +130,24 @@ func NewMedianServices(ctx context.Context,
 		CreatedAt:    time.Now(),
 	}, lggr)
 
-	if medianProvider.ChainReader() != nil {
+	medianPluginCmd := env.MedianPluginCmd.Get()
+	medianLoopEnabled := medianPluginCmd != ""
+
+	// TODO BCF-2821 handle this properly as this blocks Solana dev
+	if !medianLoopEnabled && medianProvider.ChainReader() != nil {
 		lggr.Info("Chain Reader enabled")
 		medianProvider = medianProviderWrapper{
 			medianProvider, // attach newer MedianContract which uses ChainReader
 			newMedianContract(provider.ChainReader(), common.HexToAddress(spec.ContractID)),
 		}
+	} else {
+		lggr.Info("Chain Reader disabled")
 	}
 
-	if cmdName := env.MedianPluginCmd.Get(); cmdName != "" {
-
+	if medianLoopEnabled {
 		// use unique logger names so we can use it to register a loop
 		medianLggr := lggr.Named("Median").Named(spec.ContractID).Named(spec.GetID())
-		cmdFn, telem, err2 := cfg.RegisterLOOP(medianLggr.Name(), cmdName)
+		cmdFn, telem, err2 := cfg.RegisterLOOP(medianLggr.Name(), medianPluginCmd)
 		if err2 != nil {
 			err = fmt.Errorf("failed to register loop: %w", err2)
 			abort()