nodejs mysql set query timeout
// Kill query after 60s
connection.query({sql: 'SELECT COUNT(*) AS count FROM big_table', timeout: 60000}, function (error, results, fields) {
if (error && error.code === 'PROTOCOL_SEQUENCE_TIMEOUT') {
throw new Error('too long to count table rows!');
}
if (error) {
throw error;
}
console.log(results[0].count + ' rows');
});