Method InitializeConfigVariables

be/src/service/impala-server.cc:2150–2188

}

void ImpalaServer::InitializeConfigVariables() {
  // Set idle_session_timeout here to let the SET command return the value of
  // the command line option FLAGS_idle_session_timeout
  default_query_options_.__set_idle_session_timeout(FLAGS_idle_session_timeout);
  if (FLAGS_use_calcite_planner) {
    default_query_options_.__set_planner(TPlannerType::CALCITE);
  }
  // The next query options used to be set with flags. Setting them in
  // default_query_options_ here in order to make default_query_options
  // take precedence over the legacy flags.
  default_query_options_.__set_use_local_tz_for_unix_timestamp_conversions(
    FLAGS_use_local_tz_for_unix_timestamp_conversions);
  default_query_options_.__set_convert_legacy_hive_parquet_utc_timestamps(
    FLAGS_convert_legacy_hive_parquet_utc_timestamps);
  QueryOptionsMask set_query_options; // unused
  Status status = ParseQueryOptions(FLAGS_default_query_options,
      &default_query_options_, &set_query_options);
  status.MergeStatus(ValidateQueryOptions(&default_query_options_));
  if (!status.ok()) {
    // Log error and exit if the default query options are invalid.
    CLEAN_EXIT_WITH_ERROR(Substitute("Invalid default query options. Please check "
        "-default_query_options.\n $0", status.GetDetail()));
  }
  LOG(INFO) << "Default query options:" << ThriftDebugString(default_query_options_);

  map<string, string> string_map;
  TQueryOptionsToMap(default_query_options_, &string_map);
  string_map["SUPPORT_START_OVER"] = "false";
  string_map["TIMEZONE"] = TimezoneDatabase::LocalZoneName();
  PopulateQueryOptionLevels(&query_option_levels_);
  map<string, string>::const_iterator itr = string_map.begin();
  for (; itr != string_map.end(); ++itr) {
    ConfigVariable option;
    option.__set_key(itr->first);
    option.__set_value(itr->second);
    AddOptionLevelToConfig(&option, itr->first);
    default_configs_.push_back(option);
  }
}

void ImpalaServer::SessionState::UpdateTimeout() {
  DCHECK(impala_server != nullptr);