gora-goraci/src/main/avro/cinode.json

{
  "type": "record",
  "name": "CINode",
  "namespace": "org.apache.gora.goraci.generated",
  "fields" : [
    {"name": "prev", "type": "long","default":0},
    {"name": "client", "type": ["null","string"],"default":null},
    {"name": "count", "type": "long","default":0}
  ]
}