Optimize Dgraph Memory Usage

Users Dgraph
3

PR Worker: Return nil on error by jarifibrahim · Pull Request #5414 · dgraph-io/dgraph · GitHub reduces the memory used by

(pprof) list processTask

         .     1.91GB    887:	out, err := qs.helpProcessTask(ctx, q, gid)
         .          .    888:	if err != nil {
    4.50MB     4.45GB    889:		return &pb.Result{}, err // Create this object once, use it repeatedly.
         .          .    890:	}
         .     4.97GB    891:	return out, nil
         .          .    892:}