Updater : Elastic search database needed even if using MongoDB

[ftrastour]

Running

node updater.js

fails with the following error:

events.js:397
EventEmitter.listenerCount = function(emitter, type) {
^

RangeError: Maximum call stack size exceeded
at Function.EventEmitter.listenerCount (events.js:397:38)
at Log.listenerCount (/apps/landsat-api-master/node_modules/landsat-meta-updater/node_modules/elasticsearch/src/lib/log.js:68:25)
at Function.EventEmitter.listenerCount (events.js:399:20)
at Log.listenerCount (/apps/landsat-api-master/node_modules/landsat-meta-updater/node_modules/elasticsearch/src/lib/log.js:68:25)
at Function.EventEmitter.listenerCount (events.js:399:20)
at Log.listenerCount (/apps/landsat-api-master/node_modules/landsat-meta-updater/node_modules/elasticsearch/src/lib/log.js:68:25)
at Function.EventEmitter.listenerCount (events.js:399:20)
at Log.listenerCount (/apps/landsat-api-master/node_modules/landsat-meta-updater/node_modules/elasticsearch/src/lib/log.js:68:25)
at Function.EventEmitter.listenerCount (events.js:399:20)
at Log.listenerCount (/apps/landsat-api-master/node_modules/landsat-meta-updater/node_modules/elasticsearch/src/lib/log.js:68:25)
at Function.EventEmitter.listenerCount (events.js:399:20)
at Log.listenerCount (/apps/landsat-api-master/node_modules/landsat-meta-updater/node_modules/elasticsearch/src/lib/log.js:68:25)
at Function.EventEmitter.listenerCount (events.js:399:20)
at Log.listenerCount (/apps/landsat-api-master/node_modules/landsat-meta-updater/node_modules/elasticsearch/src/lib/log.js:68:25)
at Function.EventEmitter.listenerCount (events.js:399:20)
at Log.listenerCount (/apps/landsat-api-master/node_modules/landsat-meta-updater/node_modules/elasticsearch/src/lib/log.js:68:25)
at Function.EventEmitter.listenerCount (events.js:399:20)
at Log.listenerCount (/apps/landsat-api-master/node_modules/landsat-meta-updater/node_modules/elasticsearch/src/lib/log.js:68:25)
at Function.EventEmitter.listenerCount (events.js:399:20)
at Log.listenerCount (/apps/landsat-api-master/node_modules/landsat-meta-updater/node_modules/elasticsearch/src/lib/log.js:68:25)
at Function.EventEmitter.listenerCount (events.js:399:20)
at Log.listenerCount (/apps/landsat-api-master/node_modules/landsat-meta-updater/node_modules/elasticsearch/src/lib/log.js:68:25)

even if DB_TYPE=mongo in the .env file.

Commenting the following lines from /node_modules/landsat-meta-updater/libs/connections.js:

// Connection to Elastic Search
//module.exports.elasticsearch = new elasticsearch.Client({
// host: process.env.ES_HOST || 'localhost:9200',
// Note that this doesn't abort the query.
// requestTimeout: process.env.ES_TIMEOUT || 50000 // milliseconds
//});

solved the problem (but this is probably not a good solution when DB_TYPE is es).
This code should probably be executed only when DB_TYPE is es.