Here is a post explaining how gateway works and how partial cluster failure
works:
http://www.elasticsearch.com/blog/2010/02/16/searchengine_time_machine.html.
Shards are allocated between nodes started, and I find it strange that half
your docs disappeared when you shut down one node. They should not, since
you have replicas on the other node. In general, as long as you don't do
full cluster shutdown, you can bring more nodes into play and then shut down
the other nodes. Shards will be allocated automatically between the nodes
(with the replicas).
Do you use unicast discovery in amazon? How do you configure it?
-shay.banon
On Fri, Jul 16, 2010 at 2:04 AM, David Jensen djensen47@gmail.com wrote:
I currently am running 3 small instance EC2 nodes and I want to move
to 2 large EC2 instances.What is the best way to migrate the data? I brought up a large EC2
instance already but if I shut down one of my small instances, then
half the documents disappear. Again, I'm not too clear how the
failover and sharding is working behind the scenes.Thanks,
David