Thank you guys so much! I really appreciate the input. Rachid. On Tue, Mar 15, 2016 at 11:28 AM, Patrick Hunt <[email protected]> wrote:
> For step 2: Ensure zk (everything really) is shut down. Copy the > datadir from your current zk server onto all the new servers. Ensure > that your config and myid files are setup properly. Start the new zk > cluster. > Patrick > > On Tue, Mar 15, 2016 at 11:24 AM, Shawn Heisey <[email protected]> > wrote: > > On 3/15/2016 10:13 AM, Flavio Junqueira wrote: > >> Have you asked on the Solr list? They are probably better equipped to > answer your question. > >> > >> On our end, if you are switching to a new set of servers, it is unclear > how you're going to safely migrate your data from the old ensemble to the > new one. It is also unclear what will happen with in-flight requests. If it > is the same set of servers, then I don't se why you'd have issues. We'd > need to know more about your setup, though. > > > > I saw the message on the Solr list, and was going to send Rachid here, > > because migrating the zookeeper database successfully to different > > servers is something that you can help with better. > > > > Here's the overall steps I'd use: > > > > * Shut down all Solr processes. > > * Migrate the zookeeper DB and start the new ensemble. > > * Start each Solr server without the -DzkRun option and with a corrected > > -DzkHost option. > > > > The middle step is what you fine folks will need to help with. > > > > Drawing from elsewhere on this thread ... what "history" would be lost? > > As far as I know, Solr only cares what's in the database at any given > > moment ... but my understanding may be incomplete. > > > > Because Solr includes version 3.4.6, adding/removing servers on the fly > > isn't supported, which is why I thought a migration with downtime would > > be the best option. > > > > Thanks, > > Shawn > > >
