Feature request: custom dsn= parameter

[skaag]

The goal is to allow support for "interesting" connection strings, for example in the case of replicating to a MongoDB target, we want to support replicating data to a replica set.

An example replica set connection follows:

my $client = MongoDB::MongoClient->new(
         host => "mongodb://mongo1.example.com:28000,mongo2.example.com:28000/?replicaSet=myset",
     );

Greg thinks the DSN can be stored in the bucardo.db.dbconn column

David thinks this should become a generic method for specifying a custom DNS, meaning, not just for MongoDB but really for any target database type

I offered a $250 bounty for implementing this feature as soon as possible.

[machack666]

Preliminary support in cb3642f.

[skaag]

Awesome! We will test this. Let me know how you want to collect the bounty!

[machack666]

@turnstep

As per testing, looks like this is incomplete; from the tester:

It helps on first mongo db connection phase, but still uses mongo://localhost on actual data transfer

So it sounds like it works for the initial connection, but when new data gets synchronized it reverts to some default connection string