{
  "db": {
    "name": "db",
    "connector": "mongodb",
    "database": "DCrawler-0.1.0" 
  }
}
{
  "db": {
    "database": "DCrawler-010",
    "name": "db",
    "connector": "mongodb"
  }
}

Fix mongodb database name (can not include dot in name)
Fix mongodb database name (can not include dot in name)
