MongoDB or operation with connection pooling

Mongodb

# similar to the in or or operation in SQL mulites field query:   db.cool.find ({$or: [{field1: ' val '},{' field2 ': ' Val '} ...]})

# Similar to SQL Db.coo.find (' name ':/m/) = = SQL like Pymongo  using {' field ': {$regex: keyword}}http:// Stackoverflow.com/questions/3305561/how-do-i-query-mongodb-with-like?rq=1

Db.serverstatus (). Connections view current number of connections
sudo lsof-i-n-p | grep TCP | grep MONGO Specific connection process

Deep understanding of connection pooling:
http://blog.mlab.com/2013/11/deep-dive-into-connection-pooling/

MONGDB Storage Image:
Http://stackoverflow.com/questions/11915770/saving-picture-to-mongodb

MongoDB or operation with connection pooling