On Tue, 2010-05-11 at 13:36 +0700, Jeroen Vermeulen wrote: > On 05/08/2010 07:34 PM, Stuart Bishop wrote: > > > Hmm... yeah. All the DatabasePolicies would need to know about RO > > mode, which sucks. Instead, we could just do this in the > > IStoreSelector - if read-only mode is detected, ignore any installed > > DatabasePolicy and return the read-only Stores. > > Would it make sense (and help) to keep existing read-write connections > alive, but make them begin only read-only transactions when read-only > mode is detected?
No. The goal here is to close these read-write connections so that the roll out can proceed -- the LOSAs don't proceed with a roll out if there's any open connections to any DB other than the standalone (read-only) replica. -- Guilherme Salgado <https://launchpad.net/~salgado>
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