<commit_before>var mongoose = require('mongoose');

mongoose.connect(process.env.MONGO_URL);

mongoose.connection.on('error', function ( err ) { 
  console.log("ERROR: Mongoose MongoDB connection failed!");
  console.log("       ", err);
});

module.exports = mongoose;<commit_msg>[865758] Improved error handling of MongoDB connection problems<commit_after>var mongoose = require('mongoose');

mongoose.connect(process.env.MONGO_URL);

mongoose.connection.on('error', function ( err ) { 
  console.log("ERROR: Mongoose MongoDB connection failed!");
  console.log("       ", err);
  process.exit(1);
});

module.exports = mongoose;
{'fraction_non_alphanumeric': 0.15213946117274169, 'fraction_numerical': 0.011093502377179081, 'mean_word_length': 5.32, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '5274161', 'n_tokens_mistral': 202, 'n_tokens_neox': 199, 'n_words': 39}