# Kafka Metric and policy mapping.
my %metricPolicyHash = (
                    "Leader_Election_Rate"          => "LeaderElectionRate",
                    "Unclean_Leader_Elections_Rate" => "UncleanLeaderElectionsRate",
                    "Under_Replicated_Partitions"   => "UnderReplicatedPartitions",
                    "Leader_Count"                  => "LeaderCount",
                    "Partition_Count"               => "PartitionCount",
                    "All_Topics_Messages_In_Rate"   => "AllTopicsMessagesInRate",
                    "All_Topics_Bytes_In_Rate"      => "AllTopicsBytesInRate",
                    "All_Topics_Bytes_Out_Rate"     => "AllTopicsBytesOutRate",
                    "ISR_Shrinks_Rate"              => "ISRShrinksRate",
                    "ISR_Expands_Rate"              => "ISRExpandsRate",
                    "Consumer_Requests_Rate"        => "ConsumerRequestsRate",
                    "Produce_Requests_Rate"         => "ProduceRequestsRate",
                    "Follower_Requests_Rate"        => "FollowerRequestsRate",
                    "Consumer_Total_Time"           => "ConsumerTotalTime",
                    "Consumer_Local_Time"           => "ConsumerLocalTime",
                    "Consumer_Remote_Time"          => "ConsumerRemoteTime",
                    "Consumer_Request_Queue_Time"   => "ConsumerRequestQueueTime",
                    "Consumer_Response_Send_Time"   => "ConsumerResponseSendTime",
                    "Produce_Total_Time"            => "ProduceTotalTime",
                    "Produce_Local_Time"            => "ProduceLocalTime",
                    "Produce_Remote_Time"           => "ProduceRemoteTime",
                    "Produce_Request_Queue_Time"    => "ProduceRequestQueueTime",
                    "Produce_Response_Send_Time"    => "ProduceResponseSendTime",
                    "Follower_Total_Time"           => "FollowerTotalTime",
                    "Follower_Local_Time"           => "FollowerLocalTime",
                    "Follower_Remote_Time"          => "FollowerRemoteTime",
                    "Follower_Request_Queue_Time"   => "FollowerRequestQueueTime",
                    "Follower_Response_Send_Time"   => "FollowerResponseSendTime",