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From Greg Roodt <gro...@gmail.com>
Subject Request routing / load-balancing TLOG & PULL replica types
Date Mon, 12 Feb 2018 02:35:48 GMT
Hi

I have a question around how queries are routed and load-balanced in a
cluster of mixed TLOG and PULL replicas.

I thought that I might have to put a load-balancer in front of the PULL
replicas and direct queries at them manually as nodes are added and removed
as PULL replicas. However, it seems that SolrCloud handles this
automatically?

If I add a new PULL replica node, it goes into state="recovering" while it
pulls the core. As expected. What happens if queries are directed at this
node while in this state? From what I am observing, the query gets directed
to another node?

If SolrCloud is handling the routing of requests to active nodes, will it
automatically favour PULL replicas for read queries and TLOG replicas for
writes?

Thanks
Greg

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