Thanks for your reply Erick. This is what I'm doing at the moment with Solr 6.2 (I was mistaken, before I said 6.1).
1. A new instance comes online 2. Systemd starts solr with a custom start.sh script 3. This script creates a core.properties file that looks like this: ``` name=blah shard=shard1 ``` 4. Script starts solr via the jar. ``` java -DzkHost=....... -jar start.jar ``` If I understand correctly, what happens is that the node joins the cluster, and runs a 'repair' from the leader where it copies the core? Once the repair is done, the node is a healthy member of the cluster? Is there a way to do something similar in 7.1? On 19 December 2017 at 16:55, Erick Erickson <erickerick...@gmail.com> wrote: > What have you configured to add the replica when a new node is spun up? > > If you're just copying the entire directory including the core.properties > file, > you're just getting lucky. The legcyCloud=true default is _probably_ adding > the replica with a new URL and thus making it distinct. > > Please detail exactly what you do when you add a new node..... > > Best, > Erick > > On Mon, Dec 18, 2017 at 9:03 PM, Greg Roodt <gro...@gmail.com> wrote: > > Hi > > > > Background: > > * I am looking to upgrade from Solr 6.1 to Solr 7.1. > > * Currently the system is run in cloud mode with a single collection and > > single shard per node. > > * Currently when a new node is added to the cluster, it becomes a replica > > and copies the data / core "automagically". > > > > Question: > > Is it possible to have this dynamic / automatic behaviour for repliacs in > > Solr 7.1? I've seen mention of autoscale APIs and the Collections API and > > also legacyCloud = true. I'm a little confused about what the best > approach > > is. > > > > Right now, our system is very flexible and we can scale-up by adding new > > nodes to the cluster. I would really like to keep this behaviour when we > > upgrade to 7.1. > > > > Is anybody able to point me in the right direction or describe how to > > achieve this? > > > > Kind Regards > > Greg >
