class DataSource:
# {node id hex(str): node stats(dict of GetNodeStatsReply
# in node_manager.proto)}
node_stats = Dict()
# {node id hex(str): node physical stats(dict from reporter_agent.py)}
node_physical_stats = Dict()
# {actor id hex(str): actor table data(dict of ActorTableData
# in gcs.proto)}
actors = Dict()
# {node id hex(str): dashboard agent [http port(int), grpc port(int)]}
agents = Dict()
# {node id hex(str): gcs node info(dict of GcsNodeInfo in gcs.proto)}
nodes = Dict()
# {node id hex(str): ip address(str)}
node_id_to_ip = Dict()
# {node id hex(str): hostname(str)}
node_id_to_hostname = Dict()
# {node ip (str): log entries by pid
# (dict from pid to list of latest log entries)}
ip_and_pid_to_logs = Dict()
# {node ip (str): error entries by pid
# (dict from pid to list of latest err entries)}
ip_and_pid_to_errors = Dict()
class DataSource:
# {ip address(str): node stats(dict of GetNodeStatsReply
# in node_manager.proto)}
node_stats = Dict()
# {ip address(str): node physical stats(dict from reporter_agent.py)}
node_physical_stats = Dict()
# {actor id hex(str): actor table data(dict of ActorTableData
# in gcs.proto)}
actors = Dict()
# {ip address(str): dashboard agent grpc server port(int)}
agents = Dict()
# {ip address(str): gcs node info(dict of GcsNodeInfo in gcs.proto)}
nodes = Dict()
# {hostname(str): ip address(str)}
hostname_to_ip = Dict()
# {ip address(str): hostname(str)}
ip_to_hostname = Dict()