Yes, sounds like it's because of the second node being in a different
AZ.  In AWS, AZ really means a DC (Data Center), so the node that is
in a different AZ/DC is naturally going to replicate more slowly.

Otis
--
Solr & ElasticSearch Support -- http://sematext.com/





On Fri, Jun 14, 2013 at 8:50 AM, Luis Carlos Guerrero Covo
<lcguerreroc...@gmail.com> wrote:
> Hi,
>
> I currently have solrcloud setup with single shards and two nodes behind a
> load balancer in aws. I also have an additional node in the cluster which
> is outside the load balancer (not receiving any client requests) importing
> data into the cluster using data import handler. So that takes my cluster
> to 3 nodes, 2 receiving user requests and the single data import node.
>
> I'm experiencing several data replication issues that could be caused by
> the irregular setup. The one node that is in the same availability zone as
> the data import node (My two nodes are in two different aws availability
> zones) is replicating correctly and is never far away from the import
> node's generation number. The node that is in a different availability zone
> is always lagging behind in terms of index replication. I'm mentioning
> availability zones because I see that as the only thing that could be
> causing this issue. Am I correct in asuming this? What are further steps
> that I could take to verify what could be the cause of the index not
> replicating fast enough to all nodes?
>
> thanks in advance for any help provided,
>
> Luis Guerrero

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