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.
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.
That means 4 is the highest number of masters we've tested exhaustively. The protocol supports up to 2^32-2 masters, but you willusually hit a practical limit in the number of replication agreements. Each repl. agreement runs a separate thread, so you will usually beconstrained by resources - available RAM, processors, etc.
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