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From Erick Erickson <>
Subject Re: migrate(or copy) data from one core1(node2) to anothere core2(node1)
Date Wed, 02 Dec 2015 17:59:45 GMT
How are you splitting your core to shards? And why? You should only shard
when you cannot get reasonable performance on a single shard. To increast
the queries-per-second, simply add replicas.

And if at all possible, it would be much less error-prone to just re-index
your data into a collection that was created with shards.

really, this seems like an XY problem. You're asking about specific actions
without explaining what you want to accomplish at a high level.

So why are you going to SolrCloud in the first place? Do you want to go
from a single index to a sharded one? Why? What do you expect to gain?


On Wed, Dec 2, 2015 at 9:37 AM, Mugeesh Husain <> wrote:
> Thanks Erick,
> I am making join operation for multiple core in solrcloud mode.
>>>After that's done, and assuming you want to add replicas in the SolrCloud
> version for HA/DR/Performance reasons, use the ADDREPLICA  Collections API
> command.
> If i split core into shard  then there is any way to use join in multiple
> shards.
> --
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