Observing topic synchronization across several nodes

[David Nies <da...@adition.com>]

Hello all!

When replicas are out of sync, is there a means to find out how fast synchronization is happening? It would be really nice to be able to know how many messages (or bytes) have to be transferred from partition X on host Y to partition X’ on host Y’ to have them in sync.

Is this possible yet? Right now, I examine the actual kafka log directories on the various nodes with `du` in order to get some idea how fast synchronization happens. But this seems like a very clumsy method.

Any ideas or hints are most welcome :)

Cheers,
-David