Hi,
Your plan is not possible. You can compare it to a RAID0 or RAID1. RAID0
is 2 shards/1replica. You have it stripped, not mirrored.
You just can update both solr at the same time (don't forget to backup
your data).
Another way would be to to increase the replicafactor to 2, so you have
each shard replicated on the other host. I'm not sure if that work on
only 2 SOLR, but it should.
Mit freundlichem Gruß / kind regards
Wolfgang Freudenberger
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Am 26.04.2019 um 14:10 schrieb Sadiki Latty:
I don't have any replicas the 2 Solr instances are both leaders and are split
between the two.
-----Original Message-----
From: Jörn Franke <jornfra...@gmail.com>
Sent: Thursday, April 25, 2019 5:15 PM
To: solr-user@lucene.apache.org
Subject: Re: Solr Cloud configuration
Are the replicas on the other node?
Am 25.04.2019 um 22:44 schrieb Sadiki Latty <sla...@uottawa.ca>:
Hi,
I am doing some testing with Solr Cloud and I have a couple questions.
Consider this config:
- 2 Solr instances
- 3 ZK instances (2 of which are co-located on the same server as the
2 solr servers)
- numShards 2
- replica 1
If I need to upgrade Solr, the recommended method is to update one at a time. However,
when I bring down one Solr instance I noticed that queries no longer work and I get the
error "no servers hosting shard" from the node that is up. After some research
I am wondering if this is happening because of the shard configuration. Is there any way
for me to do an upgrade without any/siginificant downtime?
For example: Is it possible to put everything on 1 node, bring the node down,
update the downed node bring it back up, wait for it to mirror then do the same
to the other node?
Thanks,
Sid
