无法连接到：localhost：27017：远程服务器在Mongo 2.6升级后关闭了连接

Question

After successfully upgrading from Mongo 2.4.10 to Mongo 2.6.0 (I verified that I can query the database in the shell) I got some problems with my previously working php code.

Uncaught exception 'MongoConnectionException' with message 'Failed to connect to: localhost:27017: Remote server has closed the connection' and also points me to the line which looks like: $m = new Mongo();

I am using Php 5.5.10-1+deb.sury.org~precise+1 with 1.4.5 phpMongo Driver (which I think has not been upgraded to support 2.6 version). Anyone experienced the same issue after 2.6 upgrade?

Answer 1

Actually everything appeared to be simpler than that (I should blame only me and not php mongo driver):

I was using new Mongo(); to connect to database (which is apparently deprecated)

Instanciating this class will emit E_DEPRECATED warning, and turn off acknowledged writes.

Strangely enough I never saw this in my logs although I have E_ALL as my warning level. Anyway after I changed to recommended way new MongoClient(); the problem was solved.