public Boolean getPerPartitionConnection(String systemName) {
    String isPerPartitionConnection = get(String.format(CONFIG_PER_PARTITION_CONNECTION, systemName));
    if (isPerPartitionConnection == null) {
      return DEFAULT_CONFIG_PER_PARTITION_CONNECTION;
    }
    return Boolean.valueOf(isPerPartitionConnection);
  }
Returns whether to create one Event Hubs client per partition. Each Event Hubs client maintains
single TCP connection. More Event Hubs clients will improve throughput in general.
For producer this config is only relevant when partition method is PARTITION_KEY_AS_PARTITION

@param systemName name of the system
@return true if an Event Hubs client should be created per partition, false otherwise
samza-azure/src/main/java/org/apache/samza/system/eventhub/EventHubConfig.java