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A comment on Things I wish I knew about MongoDB a year ago. Parent comment

Re:Things I wish I knew about MongoDB a year ago by mattparlane on Wednesday October 17, 2012 @07:11PM (#4666821)
My number one reason for choosing MongoDB is replication that just works out of the box and doesn't require either a read lock or shutting down the master to set up a new slave.
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Re:Things I wish I knew about MongoDB a year ago by sausagefeet on Wednesday October 17, 2012 @07:36PM (#4666885)
As far as I can tell, Riak blows mongo away for this particular criteria.
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Re:Things I wish I knew about MongoDB a year ago by mattparlane on Wednesday October 17, 2012 @08:27PM (#4667019)
That's my understanding too, but MongoDB hit the sweet-spot for us, Riak couldn't handle the raw queries-per-second we needed without requiring extra hardware ($$).
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Re:Things I wish I knew about MongoDB a year ago by jaimebuelta on Thursday October 18, 2012 @02:46AM (#4667719)
But Riak is much limited on the queries you can run.
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Re:Things I wish I knew about MongoDB a year ago by jeltz on Thursday October 18, 2012 @07:21AM (#4668267)
Serious question: What database requires read locks or shutting down the master for setting up a new slave? Is it MySQL?

Both sounds like really weird requirements for replication which defeats half the purpose of having it. PostgreSQL has never had any of these two problems. Still working on improving usability but with the addition and improvements of pg_basbackup I would say it is almost there. Hopefully 9.3 will get timeline switching to simplify failover.

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