Dear Rich,
can you explain with some numbers on that?
How much RAM I need per each separate thread? How many replication
agreement in a server equipped with 2, 4, 8, 16 GB RAM?
How the avg. update rate influence these numbers? And the max update rate?
30 replication agreement per server is a medium value? large? huge? Too
much? Out of any hardware configuration?
Thank in advance.
Ciao,
Enrico
Rich Megginson wrote:
Also important to keep in mind is your update rate - avg. updates per
minute, max. updates per minute.
[...snips...]
In Fedora DS, replication is supplier initiated, and will update as
soon
as possible by default. That is, as soon as the supplier receives the
change, it will send it to the consumer. There are also programmatic
ways to do it, but you usually don't need to.
[...snips...]
> That means 4 is the highest number of masters we've tested
> exhaustively. The protocol supports up to 2^32-2 masters, but you will
> usually hit a practical limit in the number of replication
> agreements. Each repl. agreement runs a separate thread, so you will
> usually be
> constrained by resources - available RAM, processors, etc.
[...snips...]