node.js - BigQuery read ECONNRESET -

when using firebase cloud functions in combination google bigquery. error thrown randomly when function triggered.

this our error log:

error: read econnreset     @ exports._errnoexception (util.js:1026:11)     @ tlswrap.onread (net.js:569:26) 

and here code colleague made.

const bigquery = require('@google-cloud/bigquery'); const admin = require('firebase-admin'); const database = admin.database();  exports.updateallplacestatistics = (request, response) => {     const secret = request.query['secret'];      if (secret !== 'secret') {         return response.json({message: 'request failed!'});     }      const big = bigquery();      return big.query({         query: [             'select place.id, count(distinct beacon.id) beacons, count(distinct promotion.id) promotions, placeusers.users users',             'from `omega.sw_places` place',             'left join `omega.sw_promotions` promotion on promotion.place_id = place.id',             'left join `omega.sw_beacons` beacon on beacon.place_id = place.id',             'left join `omega.view_users_per_place` placeusers on placeusers.id = place.id',             'group place.id, placeusers.users'         ].join(' '),         params: []     }).then((data) => {         const rows = data[0];          let result = {};         (let index = 0; index < rows.length; index++) {             const item = rows[index];              result[item.id] = {                 beacons: item.beacons,                 promotions: item.promotions             };         }          return database.ref('statistics/general').set(result);     }).then(() => {         return response.json({message: 'request succeeded!'});     }).catch((error) => {         console.log('an error has happened big_query.js');         console.log(json.stringify(error));          return response.json({message: 'request failed!'});     }); }; 

what going wrong?