sources/listing_schema.tex


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\begin{lstlisting}[caption=The Redis and PostgreSQL schema (\texttt{schema.proto} file). All the large volume data packets that travel within the system follow this format (\ie \myCircled{1} through \myCircled{6}). The communication of small datapackets takes place using the \gls{http} protocol., label={lst:protobuf-schema}]
syntax = "proto3";

package proto;

option java_package = "org.opendc.common";
option java_outer_classname = "ProtobufMetrics";

message ProtoExport {
  string timestamp = 1;
  string host_id = 2;
  int32 tasksactive = 3;
  double cpuutilization = 4;
  double energyusage = 5;
  double uptime = 6;
  double downtime = 7;
}\end{lstlisting}