[rabbitmq-discuss] Making backups of RabbitMQ state?

[Matthias Radestock]

Robert,

Robert Raschke wrote:
> But for the persistant messages I am not so sure. How is the 
> rabbit_persister.LOG managed? Can I just take a backup copy of it 
> whenever, or may I only take one of the rabbit_persister.LOG.previous? 

I'd back up both files. It should be possible to restore the 
rabbit_persister.LOG from a backup even when that backup was taken in 
the middle of an append - I haven't tested that though. The .previous 
log is needed in case the backup takes place while the log is being rolled.

> Where would I look to find out how often it is rolled?

The logic for deciding when to roll the log is rather complex.

> Can I trigger a manual roll?

rabbit_persister:force_snapshot() in the Erlang shell does the trick.


Regards,

Matthias.