Throttle XDCR in couchbase

Question

If I have a cluster that is written to very often, and I only need that data replicated every so often.

1) Is it possible to throttle XDCR in couchbase at all? 2) Can I write a custom trigger for when XDCR should be attempted?

Answer 1

Is it possible to throttle XDCR in couchbase at all?

Yes, there are a number of settings to control XDCR, including reducing the number of "Replications per Bucket" from the default of 32 to something lower - this should reduce the XDCR bandwidth usage (at the expense of slower replication. See Providing XDCR advanced settings in the Couchbase Admin Guide for details on that and other settings.

Can I write a custom trigger for when XDCR should be attempted?

No, this isn't possible at present (CB 2.5.1).