Page History

Schema:
{ "fields" :
    [ {"name": "version", "type": "int", "doc": "version id},
      {"name": "id", "type": "option[UUID]string"}, "doc": topic idoption[UUID]},
      {"name": "partitions",
       "type": {"type": "map",
                "values": {"type": "array", "items": "int", "doc": "a list of replica ids"},
                "doc": "a map from partition id to replica list"},

             {"name": "adding_replicas",
       "type": {"type": "map",
                "values": {"type": "array", "items": "int", "doc": "a list of replica ids"},
                "doc": "a map from partition id to a list of replicas to add in a pending reassignment"},

             {"name": "removing_replicas",
       "type": {"type": "map",
                "values": {"type": "array", "items": "int", "doc": "a list of replica ids"},
                "doc": "a map from partition id to a list of replicas to remove in a pending reassignment"},
      }
    ]
}
 
Example:
{
  "version": 3,
  "id": "b8tRS7h4TJ2Vt43Dp85v2A",
  "partitions": {"0": [0, 1, 3] },
    "adding_replicas": {},
    "removing_replicas": {}
}